/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/chl-nzb-file-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 08:51:09,765 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 08:51:09,848 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 08:51:09,852 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 08:51:09,853 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 08:51:09,883 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 08:51:09,883 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 08:51:09,884 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 08:51:09,884 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 08:51:09,888 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 08:51:09,888 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 08:51:09,888 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 08:51:09,888 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 08:51:09,889 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 08:51:09,890 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 08:51:09,890 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 08:51:09,890 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 08:51:09,890 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 08:51:09,890 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 08:51:09,891 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 08:51:09,891 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 08:51:09,892 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 08:51:09,892 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 08:51:09,892 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 08:51:09,893 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 08:51:09,893 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 08:51:09,893 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 08:51:09,893 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:51:09,893 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 08:51:09,894 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 08:51:09,894 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 08:51:09,895 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 08:51:09,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 08:51:09,895 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 08:51:09,895 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 08:51:09,895 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 08:51:10,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 08:51:10,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 08:51:10,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 08:51:10,222 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 08:51:10,222 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 08:51:10,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-nzb-file-symm.wvr.c [2023-08-26 08:51:11,346 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 08:51:11,573 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 08:51:11,573 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-nzb-file-symm.wvr.c [2023-08-26 08:51:11,582 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/422f92a69/93dc131942694beba965846e6e32a2bc/FLAG2e886e3b7 [2023-08-26 08:51:11,594 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/422f92a69/93dc131942694beba965846e6e32a2bc [2023-08-26 08:51:11,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 08:51:11,598 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 08:51:11,601 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 08:51:11,601 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 08:51:11,603 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 08:51:11,605 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:51:11" (1/1) ... [2023-08-26 08:51:11,606 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1082cd2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:51:11, skipping insertion in model container [2023-08-26 08:51:11,606 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:51:11" (1/1) ... [2023-08-26 08:51:11,642 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 08:51:11,813 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:51:11,827 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 08:51:11,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 08:51:11,929 INFO L206 MainTranslator]: Completed translation [2023-08-26 08:51:11,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:51:11 WrapperNode [2023-08-26 08:51:11,930 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 08:51:11,932 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 08:51:11,932 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 08:51:11,932 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 08:51:11,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:51:11" (1/1) ... [2023-08-26 08:51:11,963 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:51:11" (1/1) ... [2023-08-26 08:51:12,028 INFO L138 Inliner]: procedures = 25, calls = 56, calls flagged for inlining = 22, calls inlined = 30, statements flattened = 904 [2023-08-26 08:51:12,028 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 08:51:12,029 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 08:51:12,029 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 08:51:12,029 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 08:51:12,039 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:51:11" (1/1) ... [2023-08-26 08:51:12,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:51:11" (1/1) ... [2023-08-26 08:51:12,052 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:51:11" (1/1) ... [2023-08-26 08:51:12,052 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:51:11" (1/1) ... [2023-08-26 08:51:12,076 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:51:11" (1/1) ... [2023-08-26 08:51:12,095 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:51:11" (1/1) ... [2023-08-26 08:51:12,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:51:11" (1/1) ... [2023-08-26 08:51:12,100 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:51:11" (1/1) ... [2023-08-26 08:51:12,121 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 08:51:12,122 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 08:51:12,122 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 08:51:12,122 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 08:51:12,123 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:51:11" (1/1) ... [2023-08-26 08:51:12,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 08:51:12,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:51:12,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 08:51:12,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 08:51:12,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 08:51:12,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 08:51:12,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 08:51:12,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 08:51:12,189 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-26 08:51:12,189 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-26 08:51:12,190 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-26 08:51:12,190 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-26 08:51:12,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 08:51:12,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 08:51:12,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 08:51:12,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 08:51:12,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 08:51:12,192 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 08:51:12,312 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 08:51:12,314 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 08:51:13,292 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 08:51:13,303 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 08:51:13,304 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-08-26 08:51:13,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:51:13 BoogieIcfgContainer [2023-08-26 08:51:13,306 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 08:51:13,308 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 08:51:13,308 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 08:51:13,311 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 08:51:13,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 08:51:11" (1/3) ... [2023-08-26 08:51:13,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a815f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:51:13, skipping insertion in model container [2023-08-26 08:51:13,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:51:11" (2/3) ... [2023-08-26 08:51:13,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a815f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:51:13, skipping insertion in model container [2023-08-26 08:51:13,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:51:13" (3/3) ... [2023-08-26 08:51:13,313 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-symm.wvr.c [2023-08-26 08:51:13,330 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 08:51:13,330 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 155 error locations. [2023-08-26 08:51:13,330 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 08:51:13,545 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-26 08:51:13,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1088 places, 1156 transitions, 2328 flow [2023-08-26 08:51:14,202 INFO L124 PetriNetUnfolderBase]: 75/1154 cut-off events. [2023-08-26 08:51:14,203 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 08:51:14,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1163 conditions, 1154 events. 75/1154 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4075 event pairs, 0 based on Foata normal form. 0/924 useless extension candidates. Maximal degree in co-relation 885. Up to 2 conditions per place. [2023-08-26 08:51:14,294 INFO L82 GeneralOperation]: Start removeDead. Operand has 1088 places, 1156 transitions, 2328 flow [2023-08-26 08:51:14,337 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1077 places, 1145 transitions, 2302 flow [2023-08-26 08:51:14,341 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 08:51:14,352 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1077 places, 1145 transitions, 2302 flow [2023-08-26 08:51:14,354 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1077 places, 1145 transitions, 2302 flow [2023-08-26 08:51:14,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1077 places, 1145 transitions, 2302 flow [2023-08-26 08:51:14,717 INFO L124 PetriNetUnfolderBase]: 75/1145 cut-off events. [2023-08-26 08:51:14,718 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-26 08:51:14,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1154 conditions, 1145 events. 75/1145 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4020 event pairs, 0 based on Foata normal form. 0/916 useless extension candidates. Maximal degree in co-relation 885. Up to 2 conditions per place. [2023-08-26 08:51:14,856 INFO L119 LiptonReduction]: Number of co-enabled transitions 403556 [2023-08-26 08:51:37,297 INFO L134 LiptonReduction]: Checked pairs total: 1062414 [2023-08-26 08:51:37,297 INFO L136 LiptonReduction]: Total number of compositions: 1286 [2023-08-26 08:51:37,311 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 08:51:37,317 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;@5f92e4b6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 08:51:37,317 INFO L358 AbstractCegarLoop]: Starting to check reachability of 289 error locations. [2023-08-26 08:51:37,318 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 08:51:37,318 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 08:51:37,319 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 08:51:37,319 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:51:37,319 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 08:51:37,320 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:51:37,324 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:51:37,324 INFO L85 PathProgramCache]: Analyzing trace with hash 4765, now seen corresponding path program 1 times [2023-08-26 08:51:37,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:51:37,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588226226] [2023-08-26 08:51:37,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:51:37,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:51:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:51:37,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:51:37,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:51:37,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588226226] [2023-08-26 08:51:37,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588226226] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:51:37,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:51:37,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 08:51:37,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142571484] [2023-08-26 08:51:37,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:51:37,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 08:51:37,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:51:37,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 08:51:37,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 08:51:37,456 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1126 out of 2442 [2023-08-26 08:51:37,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 330 transitions, 672 flow. Second operand has 2 states, 2 states have (on average 1126.5) internal successors, (2253), 2 states have internal predecessors, (2253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:37,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:51:37,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1126 of 2442 [2023-08-26 08:51:37,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:51:39,455 INFO L124 PetriNetUnfolderBase]: 9990/19699 cut-off events. [2023-08-26 08:51:39,455 INFO L125 PetriNetUnfolderBase]: For 182/221 co-relation queries the response was YES. [2023-08-26 08:51:39,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34836 conditions, 19699 events. 9990/19699 cut-off events. For 182/221 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 162751 event pairs, 7188 based on Foata normal form. 292/16678 useless extension candidates. Maximal degree in co-relation 34119. Up to 14986 conditions per place. [2023-08-26 08:51:39,580 INFO L140 encePairwiseOnDemand]: 2345/2442 looper letters, 137 selfloop transitions, 0 changer transitions 0/233 dead transitions. [2023-08-26 08:51:39,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 233 transitions, 752 flow [2023-08-26 08:51:39,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 08:51:39,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 08:51:39,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2486 transitions. [2023-08-26 08:51:39,604 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.509009009009009 [2023-08-26 08:51:39,605 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 2486 transitions. [2023-08-26 08:51:39,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 2486 transitions. [2023-08-26 08:51:39,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:51:39,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 2486 transitions. [2023-08-26 08:51:39,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1243.0) internal successors, (2486), 2 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:39,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 2442.0) internal successors, (7326), 3 states have internal predecessors, (7326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:39,640 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 2442.0) internal successors, (7326), 3 states have internal predecessors, (7326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:39,642 INFO L175 Difference]: Start difference. First operand has 304 places, 330 transitions, 672 flow. Second operand 2 states and 2486 transitions. [2023-08-26 08:51:39,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 233 transitions, 752 flow [2023-08-26 08:51:39,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 233 transitions, 744 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 08:51:39,654 INFO L231 Difference]: Finished difference. Result has 207 places, 233 transitions, 470 flow [2023-08-26 08:51:39,657 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=470, PETRI_PLACES=207, PETRI_TRANSITIONS=233} [2023-08-26 08:51:39,660 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -97 predicate places. [2023-08-26 08:51:39,661 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 233 transitions, 470 flow [2023-08-26 08:51:39,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1126.5) internal successors, (2253), 2 states have internal predecessors, (2253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:39,662 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:51:39,662 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-26 08:51:39,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 08:51:39,663 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:51:39,671 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:51:39,671 INFO L85 PathProgramCache]: Analyzing trace with hash 463744578, now seen corresponding path program 1 times [2023-08-26 08:51:39,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:51:39,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610159206] [2023-08-26 08:51:39,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:51:39,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:51:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:51:39,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 08:51:39,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:51:39,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610159206] [2023-08-26 08:51:39,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610159206] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:51:39,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:51:39,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:51:39,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304823844] [2023-08-26 08:51:39,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:51:39,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:51:39,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:51:39,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:51:39,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:51:39,936 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1098 out of 2442 [2023-08-26 08:51:39,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 233 transitions, 470 flow. Second operand has 3 states, 3 states have (on average 1099.6666666666667) internal successors, (3299), 3 states have internal predecessors, (3299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:39,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:51:39,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1098 of 2442 [2023-08-26 08:51:39,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:51:41,593 INFO L124 PetriNetUnfolderBase]: 9990/19757 cut-off events. [2023-08-26 08:51:41,594 INFO L125 PetriNetUnfolderBase]: For 44/104 co-relation queries the response was YES. [2023-08-26 08:51:41,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34795 conditions, 19757 events. 9990/19757 cut-off events. For 44/104 co-relation queries the response was YES. Maximal size of possible extension queue 527. Compared 163574 event pairs, 7188 based on Foata normal form. 0/16430 useless extension candidates. Maximal degree in co-relation 34792. Up to 14986 conditions per place. [2023-08-26 08:51:41,716 INFO L140 encePairwiseOnDemand]: 2437/2442 looper letters, 135 selfloop transitions, 4 changer transitions 0/235 dead transitions. [2023-08-26 08:51:41,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 235 transitions, 752 flow [2023-08-26 08:51:41,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:51:41,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:51:41,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3435 transitions. [2023-08-26 08:51:41,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4688779688779689 [2023-08-26 08:51:41,727 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3435 transitions. [2023-08-26 08:51:41,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3435 transitions. [2023-08-26 08:51:41,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:51:41,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3435 transitions. [2023-08-26 08:51:41,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1145.0) internal successors, (3435), 3 states have internal predecessors, (3435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:41,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:41,760 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:41,760 INFO L175 Difference]: Start difference. First operand has 207 places, 233 transitions, 470 flow. Second operand 3 states and 3435 transitions. [2023-08-26 08:51:41,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 235 transitions, 752 flow [2023-08-26 08:51:41,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 235 transitions, 752 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:51:41,770 INFO L231 Difference]: Finished difference. Result has 210 places, 235 transitions, 492 flow [2023-08-26 08:51:41,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=492, PETRI_PLACES=210, PETRI_TRANSITIONS=235} [2023-08-26 08:51:41,771 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -94 predicate places. [2023-08-26 08:51:41,771 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 235 transitions, 492 flow [2023-08-26 08:51:41,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1099.6666666666667) internal successors, (3299), 3 states have internal predecessors, (3299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:41,774 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:51:41,774 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:51:41,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 08:51:41,774 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:51:41,775 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:51:41,775 INFO L85 PathProgramCache]: Analyzing trace with hash 998524082, now seen corresponding path program 1 times [2023-08-26 08:51:41,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:51:41,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334641441] [2023-08-26 08:51:41,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:51:41,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:51:41,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:51:41,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-26 08:51:41,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:51:41,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334641441] [2023-08-26 08:51:41,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334641441] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:51:41,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:51:41,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:51:41,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376587508] [2023-08-26 08:51:41,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:51:41,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:51:41,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:51:41,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:51:41,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:51:41,827 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1099 out of 2442 [2023-08-26 08:51:41,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 235 transitions, 492 flow. Second operand has 3 states, 3 states have (on average 1101.6666666666667) internal successors, (3305), 3 states have internal predecessors, (3305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:41,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:51:41,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1099 of 2442 [2023-08-26 08:51:41,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:51:43,338 INFO L124 PetriNetUnfolderBase]: 10384/20127 cut-off events. [2023-08-26 08:51:43,338 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-08-26 08:51:43,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35782 conditions, 20127 events. 10384/20127 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 164796 event pairs, 3434 based on Foata normal form. 0/16774 useless extension candidates. Maximal degree in co-relation 35777. Up to 15536 conditions per place. [2023-08-26 08:51:43,466 INFO L140 encePairwiseOnDemand]: 2428/2442 looper letters, 160 selfloop transitions, 6 changer transitions 0/252 dead transitions. [2023-08-26 08:51:43,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 252 transitions, 859 flow [2023-08-26 08:51:43,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:51:43,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:51:43,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3469 transitions. [2023-08-26 08:51:43,474 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47351897351897354 [2023-08-26 08:51:43,474 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3469 transitions. [2023-08-26 08:51:43,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3469 transitions. [2023-08-26 08:51:43,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:51:43,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3469 transitions. [2023-08-26 08:51:43,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1156.3333333333333) internal successors, (3469), 3 states have internal predecessors, (3469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:43,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:43,498 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:43,498 INFO L175 Difference]: Start difference. First operand has 210 places, 235 transitions, 492 flow. Second operand 3 states and 3469 transitions. [2023-08-26 08:51:43,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 252 transitions, 859 flow [2023-08-26 08:51:43,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 252 transitions, 855 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 08:51:43,507 INFO L231 Difference]: Finished difference. Result has 204 places, 233 transitions, 514 flow [2023-08-26 08:51:43,508 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=514, PETRI_PLACES=204, PETRI_TRANSITIONS=233} [2023-08-26 08:51:43,509 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -100 predicate places. [2023-08-26 08:51:43,509 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 233 transitions, 514 flow [2023-08-26 08:51:43,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1101.6666666666667) internal successors, (3305), 3 states have internal predecessors, (3305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:43,523 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:51:43,523 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:51:43,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 08:51:43,523 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err57ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:51:43,524 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:51:43,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1805253009, now seen corresponding path program 1 times [2023-08-26 08:51:43,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:51:43,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477297292] [2023-08-26 08:51:43,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:51:43,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:51:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:51:43,595 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-08-26 08:51:43,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:51:43,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477297292] [2023-08-26 08:51:43,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477297292] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:51:43,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:51:43,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:51:43,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592207816] [2023-08-26 08:51:43,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:51:43,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:51:43,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:51:43,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:51:43,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:51:43,602 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1099 out of 2442 [2023-08-26 08:51:43,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 233 transitions, 514 flow. Second operand has 3 states, 3 states have (on average 1102.3333333333333) internal successors, (3307), 3 states have internal predecessors, (3307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:43,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:51:43,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1099 of 2442 [2023-08-26 08:51:43,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:51:44,954 INFO L124 PetriNetUnfolderBase]: 10502/20061 cut-off events. [2023-08-26 08:51:44,954 INFO L125 PetriNetUnfolderBase]: For 302/344 co-relation queries the response was YES. [2023-08-26 08:51:44,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36514 conditions, 20061 events. 10502/20061 cut-off events. For 302/344 co-relation queries the response was YES. Maximal size of possible extension queue 529. Compared 160519 event pairs, 3306 based on Foata normal form. 1/16678 useless extension candidates. Maximal degree in co-relation 36509. Up to 15648 conditions per place. [2023-08-26 08:51:45,086 INFO L140 encePairwiseOnDemand]: 2428/2442 looper letters, 166 selfloop transitions, 6 changer transitions 0/252 dead transitions. [2023-08-26 08:51:45,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 252 transitions, 904 flow [2023-08-26 08:51:45,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:51:45,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:51:45,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3471 transitions. [2023-08-26 08:51:45,096 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4737919737919738 [2023-08-26 08:51:45,096 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3471 transitions. [2023-08-26 08:51:45,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3471 transitions. [2023-08-26 08:51:45,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:51:45,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3471 transitions. [2023-08-26 08:51:45,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1157.0) internal successors, (3471), 3 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:45,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:45,117 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:45,117 INFO L175 Difference]: Start difference. First operand has 204 places, 233 transitions, 514 flow. Second operand 3 states and 3471 transitions. [2023-08-26 08:51:45,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 252 transitions, 904 flow [2023-08-26 08:51:45,122 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 252 transitions, 904 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:51:45,125 INFO L231 Difference]: Finished difference. Result has 199 places, 231 transitions, 540 flow [2023-08-26 08:51:45,125 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=540, PETRI_PLACES=199, PETRI_TRANSITIONS=231} [2023-08-26 08:51:45,127 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -105 predicate places. [2023-08-26 08:51:45,127 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 231 transitions, 540 flow [2023-08-26 08:51:45,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1102.3333333333333) internal successors, (3307), 3 states have internal predecessors, (3307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:45,128 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:51:45,128 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:51:45,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 08:51:45,129 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:51:45,129 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:51:45,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1100920401, now seen corresponding path program 1 times [2023-08-26 08:51:45,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:51:45,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276210515] [2023-08-26 08:51:45,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:51:45,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:51:45,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:51:45,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 08:51:45,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:51:45,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276210515] [2023-08-26 08:51:45,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276210515] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 08:51:45,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875275506] [2023-08-26 08:51:45,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:51:45,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:51:45,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:51:45,289 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 08:51:45,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-26 08:51:45,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:51:45,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2023-08-26 08:51:45,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:51:45,473 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 08:51:45,473 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 08:51:45,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-26 08:51:45,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875275506] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 08:51:45,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 08:51:45,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2023-08-26 08:51:45,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486781867] [2023-08-26 08:51:45,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 08:51:45,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-26 08:51:45,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:51:45,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-26 08:51:45,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2023-08-26 08:51:45,504 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1098 out of 2442 [2023-08-26 08:51:45,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 231 transitions, 540 flow. Second operand has 8 states, 8 states have (on average 1100.125) internal successors, (8801), 8 states have internal predecessors, (8801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:45,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:51:45,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1098 of 2442 [2023-08-26 08:51:45,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:51:47,250 INFO L124 PetriNetUnfolderBase]: 10148/19629 cut-off events. [2023-08-26 08:51:47,251 INFO L125 PetriNetUnfolderBase]: For 606/651 co-relation queries the response was YES. [2023-08-26 08:51:47,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36057 conditions, 19629 events. 10148/19629 cut-off events. For 606/651 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 158980 event pairs, 6956 based on Foata normal form. 0/16226 useless extension candidates. Maximal degree in co-relation 36051. Up to 15200 conditions per place. [2023-08-26 08:51:47,355 INFO L140 encePairwiseOnDemand]: 2437/2442 looper letters, 143 selfloop transitions, 10 changer transitions 0/237 dead transitions. [2023-08-26 08:51:47,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 237 transitions, 870 flow [2023-08-26 08:51:47,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:51:47,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:51:47,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6739 transitions. [2023-08-26 08:51:47,371 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45993720993720993 [2023-08-26 08:51:47,371 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6739 transitions. [2023-08-26 08:51:47,371 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6739 transitions. [2023-08-26 08:51:47,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:51:47,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6739 transitions. [2023-08-26 08:51:47,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1123.1666666666667) internal successors, (6739), 6 states have internal predecessors, (6739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:47,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2442.0) internal successors, (17094), 7 states have internal predecessors, (17094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:47,403 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2442.0) internal successors, (17094), 7 states have internal predecessors, (17094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:47,403 INFO L175 Difference]: Start difference. First operand has 199 places, 231 transitions, 540 flow. Second operand 6 states and 6739 transitions. [2023-08-26 08:51:47,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 237 transitions, 870 flow [2023-08-26 08:51:47,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 237 transitions, 870 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:51:47,410 INFO L231 Difference]: Finished difference. Result has 207 places, 237 transitions, 606 flow [2023-08-26 08:51:47,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=606, PETRI_PLACES=207, PETRI_TRANSITIONS=237} [2023-08-26 08:51:47,413 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -97 predicate places. [2023-08-26 08:51:47,413 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 237 transitions, 606 flow [2023-08-26 08:51:47,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1100.125) internal successors, (8801), 8 states have internal predecessors, (8801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:47,415 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:51:47,416 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:51:47,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-26 08:51:47,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:51:47,621 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:51:47,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:51:47,621 INFO L85 PathProgramCache]: Analyzing trace with hash -437792097, now seen corresponding path program 2 times [2023-08-26 08:51:47,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:51:47,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906232420] [2023-08-26 08:51:47,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:51:47,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:51:47,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:51:47,810 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-26 08:51:47,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:51:47,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906232420] [2023-08-26 08:51:47,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906232420] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 08:51:47,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530665127] [2023-08-26 08:51:47,814 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 08:51:47,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:51:47,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:51:47,815 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 08:51:47,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-26 08:51:47,955 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-08-26 08:51:47,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 08:51:47,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 19 conjunts are in the unsatisfiable core [2023-08-26 08:51:47,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:51:48,010 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-08-26 08:51:48,029 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-08-26 08:51:48,060 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 08:51:48,061 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-08-26 08:51:48,094 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-08-26 08:51:48,095 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-08-26 08:51:48,116 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 08:51:48,117 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 08:51:48,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530665127] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:51:48,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-26 08:51:48,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 12 [2023-08-26 08:51:48,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393061711] [2023-08-26 08:51:48,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:51:48,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-26 08:51:48,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:51:48,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-26 08:51:48,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-08-26 08:51:48,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1054 out of 2442 [2023-08-26 08:51:48,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 237 transitions, 606 flow. Second operand has 7 states, 7 states have (on average 1055.857142857143) internal successors, (7391), 7 states have internal predecessors, (7391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:48,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:51:48,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1054 of 2442 [2023-08-26 08:51:48,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:51:54,160 INFO L124 PetriNetUnfolderBase]: 53802/79281 cut-off events. [2023-08-26 08:51:54,160 INFO L125 PetriNetUnfolderBase]: For 2387/2387 co-relation queries the response was YES. [2023-08-26 08:51:54,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161156 conditions, 79281 events. 53802/79281 cut-off events. For 2387/2387 co-relation queries the response was YES. Maximal size of possible extension queue 1257. Compared 562977 event pairs, 3616 based on Foata normal form. 0/62050 useless extension candidates. Maximal degree in co-relation 161146. Up to 28000 conditions per place. [2023-08-26 08:51:54,684 INFO L140 encePairwiseOnDemand]: 2436/2442 looper letters, 810 selfloop transitions, 5 changer transitions 0/864 dead transitions. [2023-08-26 08:51:54,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 864 transitions, 3650 flow [2023-08-26 08:51:54,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 08:51:54,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 08:51:54,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8146 transitions. [2023-08-26 08:51:54,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47654147654147655 [2023-08-26 08:51:54,703 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 8146 transitions. [2023-08-26 08:51:54,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8146 transitions. [2023-08-26 08:51:54,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:51:54,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 8146 transitions. [2023-08-26 08:51:54,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 1163.7142857142858) internal successors, (8146), 7 states have internal predecessors, (8146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:54,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 2442.0) internal successors, (19536), 8 states have internal predecessors, (19536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:54,750 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 2442.0) internal successors, (19536), 8 states have internal predecessors, (19536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:54,750 INFO L175 Difference]: Start difference. First operand has 207 places, 237 transitions, 606 flow. Second operand 7 states and 8146 transitions. [2023-08-26 08:51:54,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 864 transitions, 3650 flow [2023-08-26 08:51:54,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 864 transitions, 3634 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-08-26 08:51:54,768 INFO L231 Difference]: Finished difference. Result has 211 places, 236 transitions, 598 flow [2023-08-26 08:51:54,769 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=598, PETRI_PLACES=211, PETRI_TRANSITIONS=236} [2023-08-26 08:51:54,769 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -93 predicate places. [2023-08-26 08:51:54,769 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 236 transitions, 598 flow [2023-08-26 08:51:54,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1055.857142857143) internal successors, (7391), 7 states have internal predecessors, (7391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:54,771 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:51:54,772 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:51:54,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-26 08:51:54,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-08-26 08:51:54,976 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:51:54,977 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:51:54,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1588516191, now seen corresponding path program 1 times [2023-08-26 08:51:54,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:51:54,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397763329] [2023-08-26 08:51:54,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:51:54,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:51:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:51:55,049 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 08:51:55,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:51:55,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397763329] [2023-08-26 08:51:55,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397763329] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:51:55,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:51:55,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:51:55,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560309697] [2023-08-26 08:51:55,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:51:55,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:51:55,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:51:55,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:51:55,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:51:55,063 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1099 out of 2442 [2023-08-26 08:51:55,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 236 transitions, 598 flow. Second operand has 3 states, 3 states have (on average 1103.0) internal successors, (3309), 3 states have internal predecessors, (3309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:55,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:51:55,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1099 of 2442 [2023-08-26 08:51:55,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:51:56,935 INFO L124 PetriNetUnfolderBase]: 12877/24120 cut-off events. [2023-08-26 08:51:56,935 INFO L125 PetriNetUnfolderBase]: For 3816/3882 co-relation queries the response was YES. [2023-08-26 08:51:57,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47970 conditions, 24120 events. 12877/24120 cut-off events. For 3816/3882 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 195872 event pairs, 3033 based on Foata normal form. 1/19774 useless extension candidates. Maximal degree in co-relation 47959. Up to 13650 conditions per place. [2023-08-26 08:51:57,090 INFO L140 encePairwiseOnDemand]: 2429/2442 looper letters, 237 selfloop transitions, 5 changer transitions 0/316 dead transitions. [2023-08-26 08:51:57,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 316 transitions, 1263 flow [2023-08-26 08:51:57,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:51:57,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:51:57,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3531 transitions. [2023-08-26 08:51:57,097 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.481981981981982 [2023-08-26 08:51:57,097 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3531 transitions. [2023-08-26 08:51:57,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3531 transitions. [2023-08-26 08:51:57,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:51:57,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3531 transitions. [2023-08-26 08:51:57,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1177.0) internal successors, (3531), 3 states have internal predecessors, (3531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:57,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:57,112 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:57,112 INFO L175 Difference]: Start difference. First operand has 211 places, 236 transitions, 598 flow. Second operand 3 states and 3531 transitions. [2023-08-26 08:51:57,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 316 transitions, 1263 flow [2023-08-26 08:51:57,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 316 transitions, 1252 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 08:51:57,123 INFO L231 Difference]: Finished difference. Result has 201 places, 233 transitions, 608 flow [2023-08-26 08:51:57,124 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=573, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=608, PETRI_PLACES=201, PETRI_TRANSITIONS=233} [2023-08-26 08:51:57,124 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -103 predicate places. [2023-08-26 08:51:57,124 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 233 transitions, 608 flow [2023-08-26 08:51:57,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1103.0) internal successors, (3309), 3 states have internal predecessors, (3309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:57,125 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:51:57,125 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:51:57,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 08:51:57,126 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err53ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:51:57,126 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:51:57,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1588516680, now seen corresponding path program 1 times [2023-08-26 08:51:57,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:51:57,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801228728] [2023-08-26 08:51:57,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:51:57,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:51:57,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:51:57,189 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 08:51:57,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:51:57,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801228728] [2023-08-26 08:51:57,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801228728] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:51:57,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:51:57,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:51:57,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481525539] [2023-08-26 08:51:57,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:51:57,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:51:57,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:51:57,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:51:57,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:51:57,200 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1085 out of 2442 [2023-08-26 08:51:57,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 233 transitions, 608 flow. Second operand has 3 states, 3 states have (on average 1088.6666666666667) internal successors, (3266), 3 states have internal predecessors, (3266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:51:57,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:51:57,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1085 of 2442 [2023-08-26 08:51:57,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:52:00,509 INFO L124 PetriNetUnfolderBase]: 25250/43132 cut-off events. [2023-08-26 08:52:00,509 INFO L125 PetriNetUnfolderBase]: For 1866/1912 co-relation queries the response was YES. [2023-08-26 08:52:00,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85176 conditions, 43132 events. 25250/43132 cut-off events. For 1866/1912 co-relation queries the response was YES. Maximal size of possible extension queue 678. Compared 321047 event pairs, 12005 based on Foata normal form. 3/35212 useless extension candidates. Maximal degree in co-relation 85165. Up to 23494 conditions per place. [2023-08-26 08:52:00,785 INFO L140 encePairwiseOnDemand]: 2439/2442 looper letters, 302 selfloop transitions, 2 changer transitions 0/361 dead transitions. [2023-08-26 08:52:00,785 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 361 transitions, 1500 flow [2023-08-26 08:52:00,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:52:00,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:52:00,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3537 transitions. [2023-08-26 08:52:00,791 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4828009828009828 [2023-08-26 08:52:00,792 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3537 transitions. [2023-08-26 08:52:00,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3537 transitions. [2023-08-26 08:52:00,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:52:00,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3537 transitions. [2023-08-26 08:52:00,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1179.0) internal successors, (3537), 3 states have internal predecessors, (3537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:00,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:00,807 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:00,807 INFO L175 Difference]: Start difference. First operand has 201 places, 233 transitions, 608 flow. Second operand 3 states and 3537 transitions. [2023-08-26 08:52:00,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 361 transitions, 1500 flow [2023-08-26 08:52:00,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 361 transitions, 1500 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:52:00,816 INFO L231 Difference]: Finished difference. Result has 204 places, 234 transitions, 620 flow [2023-08-26 08:52:00,816 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=620, PETRI_PLACES=204, PETRI_TRANSITIONS=234} [2023-08-26 08:52:00,817 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -100 predicate places. [2023-08-26 08:52:00,817 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 234 transitions, 620 flow [2023-08-26 08:52:00,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1088.6666666666667) internal successors, (3266), 3 states have internal predecessors, (3266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:00,818 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:52:00,818 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:52:00,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 08:52:00,818 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err56ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:52:00,818 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:52:00,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1588516683, now seen corresponding path program 1 times [2023-08-26 08:52:00,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:52:00,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604788834] [2023-08-26 08:52:00,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:52:00,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:52:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:52:00,865 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 08:52:00,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:52:00,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604788834] [2023-08-26 08:52:00,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604788834] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:52:00,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:52:00,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:52:00,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714473227] [2023-08-26 08:52:00,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:52:00,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:52:00,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:52:00,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:52:00,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:52:00,870 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1088 out of 2442 [2023-08-26 08:52:00,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 234 transitions, 620 flow. Second operand has 3 states, 3 states have (on average 1092.0) internal successors, (3276), 3 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:00,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:52:00,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1088 of 2442 [2023-08-26 08:52:00,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:52:03,608 INFO L124 PetriNetUnfolderBase]: 18319/34974 cut-off events. [2023-08-26 08:52:03,608 INFO L125 PetriNetUnfolderBase]: For 1879/1925 co-relation queries the response was YES. [2023-08-26 08:52:03,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66067 conditions, 34974 events. 18319/34974 cut-off events. For 1879/1925 co-relation queries the response was YES. Maximal size of possible extension queue 697. Compared 293781 event pairs, 12464 based on Foata normal form. 3/29730 useless extension candidates. Maximal degree in co-relation 66054. Up to 26791 conditions per place. [2023-08-26 08:52:03,843 INFO L140 encePairwiseOnDemand]: 2438/2442 looper letters, 225 selfloop transitions, 3 changer transitions 0/303 dead transitions. [2023-08-26 08:52:03,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 303 transitions, 1238 flow [2023-08-26 08:52:03,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:52:03,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:52:03,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3469 transitions. [2023-08-26 08:52:03,849 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47351897351897354 [2023-08-26 08:52:03,849 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3469 transitions. [2023-08-26 08:52:03,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3469 transitions. [2023-08-26 08:52:03,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:52:03,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3469 transitions. [2023-08-26 08:52:03,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1156.3333333333333) internal successors, (3469), 3 states have internal predecessors, (3469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:03,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:03,864 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:03,864 INFO L175 Difference]: Start difference. First operand has 204 places, 234 transitions, 620 flow. Second operand 3 states and 3469 transitions. [2023-08-26 08:52:03,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 303 transitions, 1238 flow [2023-08-26 08:52:03,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 303 transitions, 1236 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 08:52:03,872 INFO L231 Difference]: Finished difference. Result has 204 places, 233 transitions, 622 flow [2023-08-26 08:52:03,872 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=622, PETRI_PLACES=204, PETRI_TRANSITIONS=233} [2023-08-26 08:52:03,873 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -100 predicate places. [2023-08-26 08:52:03,873 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 233 transitions, 622 flow [2023-08-26 08:52:03,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1092.0) internal successors, (3276), 3 states have internal predecessors, (3276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:03,874 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:52:03,874 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:52:03,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 08:52:03,874 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err65ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:52:03,874 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:52:03,875 INFO L85 PathProgramCache]: Analyzing trace with hash -818796385, now seen corresponding path program 1 times [2023-08-26 08:52:03,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:52:03,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689953229] [2023-08-26 08:52:03,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:52:03,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:52:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:52:03,914 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 08:52:03,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:52:03,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689953229] [2023-08-26 08:52:03,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689953229] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:52:03,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:52:03,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:52:03,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372915942] [2023-08-26 08:52:03,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:52:03,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:52:03,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:52:03,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:52:03,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:52:03,919 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1119 out of 2442 [2023-08-26 08:52:03,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 233 transitions, 622 flow. Second operand has 3 states, 3 states have (on average 1123.3333333333333) internal successors, (3370), 3 states have internal predecessors, (3370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:03,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:52:03,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1119 of 2442 [2023-08-26 08:52:03,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:52:06,751 INFO L124 PetriNetUnfolderBase]: 18865/36093 cut-off events. [2023-08-26 08:52:06,751 INFO L125 PetriNetUnfolderBase]: For 2088/2132 co-relation queries the response was YES. [2023-08-26 08:52:06,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68747 conditions, 36093 events. 18865/36093 cut-off events. For 2088/2132 co-relation queries the response was YES. Maximal size of possible extension queue 711. Compared 306245 event pairs, 11873 based on Foata normal form. 1/30717 useless extension candidates. Maximal degree in co-relation 68734. Up to 25327 conditions per place. [2023-08-26 08:52:06,990 INFO L140 encePairwiseOnDemand]: 2438/2442 looper letters, 224 selfloop transitions, 3 changer transitions 0/302 dead transitions. [2023-08-26 08:52:06,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 302 transitions, 1248 flow [2023-08-26 08:52:06,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:52:06,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:52:06,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3560 transitions. [2023-08-26 08:52:06,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48594048594048594 [2023-08-26 08:52:06,995 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3560 transitions. [2023-08-26 08:52:06,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3560 transitions. [2023-08-26 08:52:06,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:52:06,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3560 transitions. [2023-08-26 08:52:07,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1186.6666666666667) internal successors, (3560), 3 states have internal predecessors, (3560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:07,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:07,008 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:07,008 INFO L175 Difference]: Start difference. First operand has 204 places, 233 transitions, 622 flow. Second operand 3 states and 3560 transitions. [2023-08-26 08:52:07,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 302 transitions, 1248 flow [2023-08-26 08:52:07,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 302 transitions, 1236 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 08:52:07,040 INFO L231 Difference]: Finished difference. Result has 206 places, 235 transitions, 638 flow [2023-08-26 08:52:07,041 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=638, PETRI_PLACES=206, PETRI_TRANSITIONS=235} [2023-08-26 08:52:07,041 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -98 predicate places. [2023-08-26 08:52:07,041 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 235 transitions, 638 flow [2023-08-26 08:52:07,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1123.3333333333333) internal successors, (3370), 3 states have internal predecessors, (3370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:07,042 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:52:07,042 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:52:07,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 08:52:07,042 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err63ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:52:07,043 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:52:07,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1673052825, now seen corresponding path program 1 times [2023-08-26 08:52:07,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:52:07,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505014176] [2023-08-26 08:52:07,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:52:07,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:52:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:52:07,083 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 08:52:07,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:52:07,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505014176] [2023-08-26 08:52:07,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505014176] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:52:07,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:52:07,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:52:07,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752586168] [2023-08-26 08:52:07,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:52:07,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:52:07,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:52:07,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:52:07,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:52:07,087 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1116 out of 2442 [2023-08-26 08:52:07,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 235 transitions, 638 flow. Second operand has 3 states, 3 states have (on average 1120.3333333333333) internal successors, (3361), 3 states have internal predecessors, (3361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:07,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:52:07,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1116 of 2442 [2023-08-26 08:52:07,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:52:10,422 INFO L124 PetriNetUnfolderBase]: 21820/41862 cut-off events. [2023-08-26 08:52:10,422 INFO L125 PetriNetUnfolderBase]: For 3688/3693 co-relation queries the response was YES. [2023-08-26 08:52:10,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80442 conditions, 41862 events. 21820/41862 cut-off events. For 3688/3693 co-relation queries the response was YES. Maximal size of possible extension queue 884. Compared 369197 event pairs, 13215 based on Foata normal form. 22/35963 useless extension candidates. Maximal degree in co-relation 80428. Up to 28029 conditions per place. [2023-08-26 08:52:10,906 INFO L140 encePairwiseOnDemand]: 2437/2442 looper letters, 246 selfloop transitions, 2 changer transitions 0/322 dead transitions. [2023-08-26 08:52:10,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 322 transitions, 1357 flow [2023-08-26 08:52:10,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:52:10,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:52:10,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3569 transitions. [2023-08-26 08:52:10,911 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48716898716898716 [2023-08-26 08:52:10,911 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3569 transitions. [2023-08-26 08:52:10,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3569 transitions. [2023-08-26 08:52:10,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:52:10,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3569 transitions. [2023-08-26 08:52:10,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1189.6666666666667) internal successors, (3569), 3 states have internal predecessors, (3569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:10,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:10,922 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:10,922 INFO L175 Difference]: Start difference. First operand has 206 places, 235 transitions, 638 flow. Second operand 3 states and 3569 transitions. [2023-08-26 08:52:10,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 322 transitions, 1357 flow [2023-08-26 08:52:10,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 322 transitions, 1345 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 08:52:10,936 INFO L231 Difference]: Finished difference. Result has 208 places, 235 transitions, 645 flow [2023-08-26 08:52:10,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=627, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=645, PETRI_PLACES=208, PETRI_TRANSITIONS=235} [2023-08-26 08:52:10,937 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -96 predicate places. [2023-08-26 08:52:10,937 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 235 transitions, 645 flow [2023-08-26 08:52:10,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1120.3333333333333) internal successors, (3361), 3 states have internal predecessors, (3361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:10,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:52:10,938 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:52:10,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 08:52:10,938 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:52:10,938 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:52:10,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1360275125, now seen corresponding path program 1 times [2023-08-26 08:52:10,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:52:10,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210929112] [2023-08-26 08:52:10,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:52:10,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:52:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:52:10,978 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 08:52:10,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:52:10,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210929112] [2023-08-26 08:52:10,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210929112] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:52:10,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:52:10,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:52:10,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30949480] [2023-08-26 08:52:10,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:52:10,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:52:10,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:52:10,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:52:10,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:52:10,982 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1099 out of 2442 [2023-08-26 08:52:10,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 235 transitions, 645 flow. Second operand has 3 states, 3 states have (on average 1104.0) internal successors, (3312), 3 states have internal predecessors, (3312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:10,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:52:10,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1099 of 2442 [2023-08-26 08:52:10,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:52:14,934 INFO L124 PetriNetUnfolderBase]: 27239/49351 cut-off events. [2023-08-26 08:52:14,934 INFO L125 PetriNetUnfolderBase]: For 4958/4994 co-relation queries the response was YES. [2023-08-26 08:52:15,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98256 conditions, 49351 events. 27239/49351 cut-off events. For 4958/4994 co-relation queries the response was YES. Maximal size of possible extension queue 996. Compared 414555 event pairs, 6083 based on Foata normal form. 0/42828 useless extension candidates. Maximal degree in co-relation 98241. Up to 30822 conditions per place. [2023-08-26 08:52:15,279 INFO L140 encePairwiseOnDemand]: 2429/2442 looper letters, 251 selfloop transitions, 5 changer transitions 0/319 dead transitions. [2023-08-26 08:52:15,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 319 transitions, 1385 flow [2023-08-26 08:52:15,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:52:15,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:52:15,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3532 transitions. [2023-08-26 08:52:15,284 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48211848211848213 [2023-08-26 08:52:15,285 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3532 transitions. [2023-08-26 08:52:15,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3532 transitions. [2023-08-26 08:52:15,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:52:15,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3532 transitions. [2023-08-26 08:52:15,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1177.3333333333333) internal successors, (3532), 3 states have internal predecessors, (3532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:15,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:15,295 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:15,295 INFO L175 Difference]: Start difference. First operand has 208 places, 235 transitions, 645 flow. Second operand 3 states and 3532 transitions. [2023-08-26 08:52:15,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 319 transitions, 1385 flow [2023-08-26 08:52:15,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 319 transitions, 1381 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 08:52:15,316 INFO L231 Difference]: Finished difference. Result has 202 places, 232 transitions, 662 flow [2023-08-26 08:52:15,316 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=627, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=662, PETRI_PLACES=202, PETRI_TRANSITIONS=232} [2023-08-26 08:52:15,317 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -102 predicate places. [2023-08-26 08:52:15,317 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 232 transitions, 662 flow [2023-08-26 08:52:15,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1104.0) internal successors, (3312), 3 states have internal predecessors, (3312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:15,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:52:15,318 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:52:15,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-26 08:52:15,318 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err53ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:52:15,318 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:52:15,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1360275690, now seen corresponding path program 1 times [2023-08-26 08:52:15,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:52:15,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382776366] [2023-08-26 08:52:15,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:52:15,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:52:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:52:15,407 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 08:52:15,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:52:15,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382776366] [2023-08-26 08:52:15,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382776366] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:52:15,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:52:15,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:52:15,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283253409] [2023-08-26 08:52:15,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:52:15,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:52:15,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:52:15,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:52:15,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:52:15,411 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1085 out of 2442 [2023-08-26 08:52:15,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 232 transitions, 662 flow. Second operand has 3 states, 3 states have (on average 1089.6666666666667) internal successors, (3269), 3 states have internal predecessors, (3269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:15,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:52:15,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1085 of 2442 [2023-08-26 08:52:15,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:52:21,608 INFO L124 PetriNetUnfolderBase]: 45046/75996 cut-off events. [2023-08-26 08:52:21,608 INFO L125 PetriNetUnfolderBase]: For 7323/7434 co-relation queries the response was YES. [2023-08-26 08:52:21,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158712 conditions, 75996 events. 45046/75996 cut-off events. For 7323/7434 co-relation queries the response was YES. Maximal size of possible extension queue 1151. Compared 613341 event pairs, 21680 based on Foata normal form. 9/64590 useless extension candidates. Maximal degree in co-relation 158697. Up to 43060 conditions per place. [2023-08-26 08:52:22,173 INFO L140 encePairwiseOnDemand]: 2439/2442 looper letters, 294 selfloop transitions, 2 changer transitions 0/354 dead transitions. [2023-08-26 08:52:22,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 354 transitions, 1565 flow [2023-08-26 08:52:22,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:52:22,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:52:22,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3515 transitions. [2023-08-26 08:52:22,178 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4797979797979798 [2023-08-26 08:52:22,178 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3515 transitions. [2023-08-26 08:52:22,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3515 transitions. [2023-08-26 08:52:22,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:52:22,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3515 transitions. [2023-08-26 08:52:22,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1171.6666666666667) internal successors, (3515), 3 states have internal predecessors, (3515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:22,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:22,188 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:22,188 INFO L175 Difference]: Start difference. First operand has 202 places, 232 transitions, 662 flow. Second operand 3 states and 3515 transitions. [2023-08-26 08:52:22,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 354 transitions, 1565 flow [2023-08-26 08:52:22,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 354 transitions, 1565 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:52:22,203 INFO L231 Difference]: Finished difference. Result has 205 places, 233 transitions, 674 flow [2023-08-26 08:52:22,203 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=674, PETRI_PLACES=205, PETRI_TRANSITIONS=233} [2023-08-26 08:52:22,204 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -99 predicate places. [2023-08-26 08:52:22,204 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 233 transitions, 674 flow [2023-08-26 08:52:22,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1089.6666666666667) internal successors, (3269), 3 states have internal predecessors, (3269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:22,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:52:22,205 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:52:22,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-26 08:52:22,205 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err63ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:52:22,205 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:52:22,205 INFO L85 PathProgramCache]: Analyzing trace with hash -897404211, now seen corresponding path program 1 times [2023-08-26 08:52:22,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:52:22,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617100373] [2023-08-26 08:52:22,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:52:22,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:52:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:52:22,244 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 08:52:22,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:52:22,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617100373] [2023-08-26 08:52:22,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617100373] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:52:22,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:52:22,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:52:22,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031506302] [2023-08-26 08:52:22,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:52:22,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:52:22,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:52:22,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:52:22,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:52:22,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1116 out of 2442 [2023-08-26 08:52:22,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 233 transitions, 674 flow. Second operand has 3 states, 3 states have (on average 1121.0) internal successors, (3363), 3 states have internal predecessors, (3363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:22,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:52:22,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1116 of 2442 [2023-08-26 08:52:22,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:52:28,809 INFO L124 PetriNetUnfolderBase]: 43827/80828 cut-off events. [2023-08-26 08:52:28,809 INFO L125 PetriNetUnfolderBase]: For 7369/7408 co-relation queries the response was YES. [2023-08-26 08:52:29,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163957 conditions, 80828 events. 43827/80828 cut-off events. For 7369/7408 co-relation queries the response was YES. Maximal size of possible extension queue 1315. Compared 738344 event pairs, 27327 based on Foata normal form. 27/72229 useless extension candidates. Maximal degree in co-relation 163940. Up to 56293 conditions per place. [2023-08-26 08:52:29,428 INFO L140 encePairwiseOnDemand]: 2437/2442 looper letters, 248 selfloop transitions, 3 changer transitions 0/318 dead transitions. [2023-08-26 08:52:29,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 318 transitions, 1414 flow [2023-08-26 08:52:29,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:52:29,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:52:29,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3563 transitions. [2023-08-26 08:52:29,631 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48634998634998633 [2023-08-26 08:52:29,631 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3563 transitions. [2023-08-26 08:52:29,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3563 transitions. [2023-08-26 08:52:29,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:52:29,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3563 transitions. [2023-08-26 08:52:29,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1187.6666666666667) internal successors, (3563), 3 states have internal predecessors, (3563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:29,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:29,641 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:29,641 INFO L175 Difference]: Start difference. First operand has 205 places, 233 transitions, 674 flow. Second operand 3 states and 3563 transitions. [2023-08-26 08:52:29,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 318 transitions, 1414 flow [2023-08-26 08:52:29,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 318 transitions, 1412 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 08:52:29,743 INFO L231 Difference]: Finished difference. Result has 208 places, 235 transitions, 698 flow [2023-08-26 08:52:29,743 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=672, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=698, PETRI_PLACES=208, PETRI_TRANSITIONS=235} [2023-08-26 08:52:29,743 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -96 predicate places. [2023-08-26 08:52:29,743 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 235 transitions, 698 flow [2023-08-26 08:52:29,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1121.0) internal successors, (3363), 3 states have internal predecessors, (3363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:29,744 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:52:29,744 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:52:29,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-26 08:52:29,744 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err65ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:52:29,744 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:52:29,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1182471983, now seen corresponding path program 1 times [2023-08-26 08:52:29,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:52:29,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472173166] [2023-08-26 08:52:29,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:52:29,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:52:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:52:29,785 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 08:52:29,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:52:29,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472173166] [2023-08-26 08:52:29,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472173166] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:52:29,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:52:29,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:52:29,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084361609] [2023-08-26 08:52:29,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:52:29,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:52:29,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:52:29,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:52:29,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:52:29,789 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1088 out of 2442 [2023-08-26 08:52:29,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 235 transitions, 698 flow. Second operand has 3 states, 3 states have (on average 1093.3333333333333) internal successors, (3280), 3 states have internal predecessors, (3280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:29,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:52:29,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1088 of 2442 [2023-08-26 08:52:29,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:52:36,522 INFO L124 PetriNetUnfolderBase]: 43863/80941 cut-off events. [2023-08-26 08:52:36,523 INFO L125 PetriNetUnfolderBase]: For 10849/10890 co-relation queries the response was YES. [2023-08-26 08:52:36,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166301 conditions, 80941 events. 43863/80941 cut-off events. For 10849/10890 co-relation queries the response was YES. Maximal size of possible extension queue 1323. Compared 737058 event pairs, 30707 based on Foata normal form. 1024/73946 useless extension candidates. Maximal degree in co-relation 166283. Up to 63305 conditions per place. [2023-08-26 08:52:37,176 INFO L140 encePairwiseOnDemand]: 2437/2442 looper letters, 232 selfloop transitions, 5 changer transitions 0/303 dead transitions. [2023-08-26 08:52:37,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 303 transitions, 1359 flow [2023-08-26 08:52:37,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:52:37,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:52:37,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3465 transitions. [2023-08-26 08:52:37,181 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47297297297297297 [2023-08-26 08:52:37,181 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3465 transitions. [2023-08-26 08:52:37,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3465 transitions. [2023-08-26 08:52:37,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:52:37,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3465 transitions. [2023-08-26 08:52:37,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1155.0) internal successors, (3465), 3 states have internal predecessors, (3465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:37,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:37,189 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:37,189 INFO L175 Difference]: Start difference. First operand has 208 places, 235 transitions, 698 flow. Second operand 3 states and 3465 transitions. [2023-08-26 08:52:37,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 303 transitions, 1359 flow [2023-08-26 08:52:37,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 303 transitions, 1356 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 08:52:37,228 INFO L231 Difference]: Finished difference. Result has 208 places, 234 transitions, 703 flow [2023-08-26 08:52:37,229 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=703, PETRI_PLACES=208, PETRI_TRANSITIONS=234} [2023-08-26 08:52:37,229 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -96 predicate places. [2023-08-26 08:52:37,229 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 234 transitions, 703 flow [2023-08-26 08:52:37,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1093.3333333333333) internal successors, (3280), 3 states have internal predecessors, (3280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:37,230 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:52:37,230 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:52:37,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-26 08:52:37,230 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:52:37,230 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:52:37,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1503976468, now seen corresponding path program 1 times [2023-08-26 08:52:37,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:52:37,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340185081] [2023-08-26 08:52:37,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:52:37,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:52:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:52:37,312 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 08:52:37,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:52:37,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340185081] [2023-08-26 08:52:37,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340185081] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:52:37,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:52:37,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:52:37,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248424109] [2023-08-26 08:52:37,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:52:37,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:52:37,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:52:37,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:52:37,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:52:37,317 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1037 out of 2442 [2023-08-26 08:52:37,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 234 transitions, 703 flow. Second operand has 3 states, 3 states have (on average 1042.0) internal successors, (3126), 3 states have internal predecessors, (3126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:52:37,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:52:37,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1037 of 2442 [2023-08-26 08:52:37,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:53:03,387 INFO L124 PetriNetUnfolderBase]: 225315/343704 cut-off events. [2023-08-26 08:53:03,387 INFO L125 PetriNetUnfolderBase]: For 54162/54164 co-relation queries the response was YES. [2023-08-26 08:53:05,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 770238 conditions, 343704 events. 225315/343704 cut-off events. For 54162/54164 co-relation queries the response was YES. Maximal size of possible extension queue 3668. Compared 2806210 event pairs, 71390 based on Foata normal form. 0/299639 useless extension candidates. Maximal degree in co-relation 770220. Up to 194958 conditions per place. [2023-08-26 08:53:06,328 INFO L140 encePairwiseOnDemand]: 2436/2442 looper letters, 284 selfloop transitions, 3 changer transitions 0/316 dead transitions. [2023-08-26 08:53:06,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 316 transitions, 1511 flow [2023-08-26 08:53:06,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:53:06,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:53:06,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3365 transitions. [2023-08-26 08:53:06,335 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4593229593229593 [2023-08-26 08:53:06,335 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3365 transitions. [2023-08-26 08:53:06,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3365 transitions. [2023-08-26 08:53:06,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:53:06,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3365 transitions. [2023-08-26 08:53:06,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1121.6666666666667) internal successors, (3365), 3 states have internal predecessors, (3365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:06,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:06,344 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:06,344 INFO L175 Difference]: Start difference. First operand has 208 places, 234 transitions, 703 flow. Second operand 3 states and 3365 transitions. [2023-08-26 08:53:06,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 316 transitions, 1511 flow [2023-08-26 08:53:07,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 316 transitions, 1491 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 08:53:07,806 INFO L231 Difference]: Finished difference. Result has 204 places, 230 transitions, 691 flow [2023-08-26 08:53:07,806 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=685, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=691, PETRI_PLACES=204, PETRI_TRANSITIONS=230} [2023-08-26 08:53:07,807 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -100 predicate places. [2023-08-26 08:53:07,807 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 230 transitions, 691 flow [2023-08-26 08:53:07,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1042.0) internal successors, (3126), 3 states have internal predecessors, (3126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:07,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:53:07,807 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:53:07,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-26 08:53:07,808 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err63ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:53:07,808 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:53:07,808 INFO L85 PathProgramCache]: Analyzing trace with hash -2031896341, now seen corresponding path program 1 times [2023-08-26 08:53:07,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:53:07,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396487843] [2023-08-26 08:53:07,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:53:07,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:53:07,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:53:07,872 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 08:53:07,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:53:07,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396487843] [2023-08-26 08:53:07,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396487843] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:53:07,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:53:07,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:53:07,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024384357] [2023-08-26 08:53:07,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:53:07,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:53:07,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:53:07,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:53:07,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:53:07,877 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1117 out of 2442 [2023-08-26 08:53:07,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 230 transitions, 691 flow. Second operand has 3 states, 3 states have (on average 1122.3333333333333) internal successors, (3367), 3 states have internal predecessors, (3367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:07,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:53:07,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1117 of 2442 [2023-08-26 08:53:07,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:53:15,805 INFO L124 PetriNetUnfolderBase]: 48896/90254 cut-off events. [2023-08-26 08:53:15,805 INFO L125 PetriNetUnfolderBase]: For 11431/11499 co-relation queries the response was YES. [2023-08-26 08:53:16,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187069 conditions, 90254 events. 48896/90254 cut-off events. For 11431/11499 co-relation queries the response was YES. Maximal size of possible extension queue 1525. Compared 843739 event pairs, 31401 based on Foata normal form. 9/81258 useless extension candidates. Maximal degree in co-relation 187051. Up to 64043 conditions per place. [2023-08-26 08:53:16,897 INFO L140 encePairwiseOnDemand]: 2438/2442 looper letters, 313 selfloop transitions, 2 changer transitions 0/373 dead transitions. [2023-08-26 08:53:16,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 373 transitions, 1731 flow [2023-08-26 08:53:16,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:53:16,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:53:16,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3622 transitions. [2023-08-26 08:53:16,900 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4944034944034944 [2023-08-26 08:53:16,900 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3622 transitions. [2023-08-26 08:53:16,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3622 transitions. [2023-08-26 08:53:16,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:53:16,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3622 transitions. [2023-08-26 08:53:16,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1207.3333333333333) internal successors, (3622), 3 states have internal predecessors, (3622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:16,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:16,910 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:16,910 INFO L175 Difference]: Start difference. First operand has 204 places, 230 transitions, 691 flow. Second operand 3 states and 3622 transitions. [2023-08-26 08:53:16,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 373 transitions, 1731 flow [2023-08-26 08:53:16,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 373 transitions, 1721 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 08:53:16,946 INFO L231 Difference]: Finished difference. Result has 203 places, 230 transitions, 695 flow [2023-08-26 08:53:16,946 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=695, PETRI_PLACES=203, PETRI_TRANSITIONS=230} [2023-08-26 08:53:16,947 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -101 predicate places. [2023-08-26 08:53:16,947 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 230 transitions, 695 flow [2023-08-26 08:53:16,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1122.3333333333333) internal successors, (3367), 3 states have internal predecessors, (3367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:16,948 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:53:16,948 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:53:16,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-26 08:53:16,948 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:53:16,948 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:53:16,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1555213801, now seen corresponding path program 1 times [2023-08-26 08:53:16,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:53:16,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052814889] [2023-08-26 08:53:16,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:53:16,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:53:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:53:17,059 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 08:53:17,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:53:17,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052814889] [2023-08-26 08:53:17,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052814889] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:53:17,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:53:17,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:53:17,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363649933] [2023-08-26 08:53:17,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:53:17,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:53:17,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:53:17,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:53:17,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:53:17,063 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1037 out of 2442 [2023-08-26 08:53:17,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 230 transitions, 695 flow. Second operand has 3 states, 3 states have (on average 1042.6666666666667) internal successors, (3128), 3 states have internal predecessors, (3128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:17,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:53:17,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1037 of 2442 [2023-08-26 08:53:17,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:53:43,026 INFO L124 PetriNetUnfolderBase]: 217350/334014 cut-off events. [2023-08-26 08:53:43,026 INFO L125 PetriNetUnfolderBase]: For 39947/39961 co-relation queries the response was YES. [2023-08-26 08:53:44,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 746070 conditions, 334014 events. 217350/334014 cut-off events. For 39947/39961 co-relation queries the response was YES. Maximal size of possible extension queue 3999. Compared 2799576 event pairs, 77658 based on Foata normal form. 0/295261 useless extension candidates. Maximal degree in co-relation 746052. Up to 177817 conditions per place. [2023-08-26 08:53:45,591 INFO L140 encePairwiseOnDemand]: 2436/2442 looper letters, 281 selfloop transitions, 3 changer transitions 0/314 dead transitions. [2023-08-26 08:53:45,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 314 transitions, 1477 flow [2023-08-26 08:53:45,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:53:45,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:53:45,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3364 transitions. [2023-08-26 08:53:45,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4591864591864592 [2023-08-26 08:53:45,595 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3364 transitions. [2023-08-26 08:53:45,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3364 transitions. [2023-08-26 08:53:45,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:53:45,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3364 transitions. [2023-08-26 08:53:45,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1121.3333333333333) internal successors, (3364), 3 states have internal predecessors, (3364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:45,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:45,603 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:45,603 INFO L175 Difference]: Start difference. First operand has 203 places, 230 transitions, 695 flow. Second operand 3 states and 3364 transitions. [2023-08-26 08:53:45,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 314 transitions, 1477 flow [2023-08-26 08:53:45,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 314 transitions, 1477 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:53:45,766 INFO L231 Difference]: Finished difference. Result has 201 places, 226 transitions, 693 flow [2023-08-26 08:53:45,766 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=687, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=693, PETRI_PLACES=201, PETRI_TRANSITIONS=226} [2023-08-26 08:53:45,766 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -103 predicate places. [2023-08-26 08:53:45,766 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 226 transitions, 693 flow [2023-08-26 08:53:45,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1042.6666666666667) internal successors, (3128), 3 states have internal predecessors, (3128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:45,767 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:53:45,767 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:53:45,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-26 08:53:45,767 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err63ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:53:45,767 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:53:45,767 INFO L85 PathProgramCache]: Analyzing trace with hash 873671710, now seen corresponding path program 1 times [2023-08-26 08:53:45,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:53:45,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011434596] [2023-08-26 08:53:45,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:53:45,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:53:45,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:53:45,803 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 08:53:45,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:53:45,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011434596] [2023-08-26 08:53:45,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011434596] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:53:45,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:53:45,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:53:45,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454821693] [2023-08-26 08:53:45,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:53:45,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:53:45,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:53:45,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:53:45,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:53:45,807 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1117 out of 2442 [2023-08-26 08:53:45,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 226 transitions, 693 flow. Second operand has 3 states, 3 states have (on average 1122.6666666666667) internal successors, (3368), 3 states have internal predecessors, (3368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:45,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:53:45,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1117 of 2442 [2023-08-26 08:53:45,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:53:53,245 INFO L124 PetriNetUnfolderBase]: 48940/88212 cut-off events. [2023-08-26 08:53:53,246 INFO L125 PetriNetUnfolderBase]: For 12118/12159 co-relation queries the response was YES. [2023-08-26 08:53:53,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187436 conditions, 88212 events. 48940/88212 cut-off events. For 12118/12159 co-relation queries the response was YES. Maximal size of possible extension queue 1468. Compared 798067 event pairs, 31487 based on Foata normal form. 0/79889 useless extension candidates. Maximal degree in co-relation 187417. Up to 64149 conditions per place. [2023-08-26 08:53:53,934 INFO L140 encePairwiseOnDemand]: 2438/2442 looper letters, 314 selfloop transitions, 2 changer transitions 0/369 dead transitions. [2023-08-26 08:53:53,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 369 transitions, 1740 flow [2023-08-26 08:53:53,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:53:53,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:53:53,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3622 transitions. [2023-08-26 08:53:53,937 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4944034944034944 [2023-08-26 08:53:53,937 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3622 transitions. [2023-08-26 08:53:53,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3622 transitions. [2023-08-26 08:53:53,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:53:53,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3622 transitions. [2023-08-26 08:53:53,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1207.3333333333333) internal successors, (3622), 3 states have internal predecessors, (3622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:53,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:53,943 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:53,943 INFO L175 Difference]: Start difference. First operand has 201 places, 226 transitions, 693 flow. Second operand 3 states and 3622 transitions. [2023-08-26 08:53:53,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 369 transitions, 1740 flow [2023-08-26 08:53:53,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 369 transitions, 1728 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 08:53:53,972 INFO L231 Difference]: Finished difference. Result has 200 places, 226 transitions, 697 flow [2023-08-26 08:53:53,972 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=683, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=697, PETRI_PLACES=200, PETRI_TRANSITIONS=226} [2023-08-26 08:53:53,973 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -104 predicate places. [2023-08-26 08:53:53,973 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 226 transitions, 697 flow [2023-08-26 08:53:53,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1122.6666666666667) internal successors, (3368), 3 states have internal predecessors, (3368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:53,974 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:53:53,974 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:53:53,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-26 08:53:53,974 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:53:53,974 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:53:53,974 INFO L85 PathProgramCache]: Analyzing trace with hash 2113728998, now seen corresponding path program 1 times [2023-08-26 08:53:53,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:53:53,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603943354] [2023-08-26 08:53:53,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:53:53,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:53:53,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:53:54,058 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 08:53:54,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:53:54,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603943354] [2023-08-26 08:53:54,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603943354] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:53:54,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:53:54,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:53:54,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070853993] [2023-08-26 08:53:54,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:53:54,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:53:54,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:53:54,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:53:54,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:53:54,062 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1037 out of 2442 [2023-08-26 08:53:54,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 226 transitions, 697 flow. Second operand has 3 states, 3 states have (on average 1043.6666666666667) internal successors, (3131), 3 states have internal predecessors, (3131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:53:54,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:53:54,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1037 of 2442 [2023-08-26 08:53:54,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:54:28,792 INFO L124 PetriNetUnfolderBase]: 273355/414780 cut-off events. [2023-08-26 08:54:28,793 INFO L125 PetriNetUnfolderBase]: For 47146/47178 co-relation queries the response was YES. [2023-08-26 08:54:31,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 927594 conditions, 414780 events. 273355/414780 cut-off events. For 47146/47178 co-relation queries the response was YES. Maximal size of possible extension queue 4806. Compared 3445250 event pairs, 153254 based on Foata normal form. 0/376076 useless extension candidates. Maximal degree in co-relation 927575. Up to 274947 conditions per place. [2023-08-26 08:54:33,234 INFO L140 encePairwiseOnDemand]: 2433/2442 looper letters, 304 selfloop transitions, 6 changer transitions 0/338 dead transitions. [2023-08-26 08:54:33,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 338 transitions, 1594 flow [2023-08-26 08:54:33,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:54:33,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:54:33,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3389 transitions. [2023-08-26 08:54:33,238 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4625989625989626 [2023-08-26 08:54:33,238 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3389 transitions. [2023-08-26 08:54:33,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3389 transitions. [2023-08-26 08:54:33,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:54:33,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3389 transitions. [2023-08-26 08:54:33,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1129.6666666666667) internal successors, (3389), 3 states have internal predecessors, (3389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:54:33,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:54:33,269 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:54:33,269 INFO L175 Difference]: Start difference. First operand has 200 places, 226 transitions, 697 flow. Second operand 3 states and 3389 transitions. [2023-08-26 08:54:33,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 338 transitions, 1594 flow [2023-08-26 08:54:33,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 338 transitions, 1594 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:54:33,576 INFO L231 Difference]: Finished difference. Result has 200 places, 227 transitions, 737 flow [2023-08-26 08:54:33,577 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=737, PETRI_PLACES=200, PETRI_TRANSITIONS=227} [2023-08-26 08:54:33,577 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -104 predicate places. [2023-08-26 08:54:33,577 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 227 transitions, 737 flow [2023-08-26 08:54:33,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1043.6666666666667) internal successors, (3131), 3 states have internal predecessors, (3131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:54:33,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:54:33,578 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:54:33,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-26 08:54:33,578 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:54:33,578 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:54:33,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1872688147, now seen corresponding path program 1 times [2023-08-26 08:54:33,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:54:33,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049649739] [2023-08-26 08:54:33,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:54:33,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:54:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:54:33,766 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 08:54:33,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:54:33,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049649739] [2023-08-26 08:54:33,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049649739] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:54:33,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:54:33,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 08:54:33,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11480675] [2023-08-26 08:54:33,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:54:33,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:54:33,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:54:33,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:54:33,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:54:33,769 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1037 out of 2442 [2023-08-26 08:54:33,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 227 transitions, 737 flow. Second operand has 3 states, 3 states have (on average 1043.6666666666667) internal successors, (3131), 3 states have internal predecessors, (3131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:54:33,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:54:33,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1037 of 2442 [2023-08-26 08:54:33,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:55:27,830 INFO L124 PetriNetUnfolderBase]: 351621/534712 cut-off events. [2023-08-26 08:55:27,830 INFO L125 PetriNetUnfolderBase]: For 86634/86666 co-relation queries the response was YES. [2023-08-26 08:55:30,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1211363 conditions, 534712 events. 351621/534712 cut-off events. For 86634/86666 co-relation queries the response was YES. Maximal size of possible extension queue 5817. Compared 4546517 event pairs, 191454 based on Foata normal form. 0/493925 useless extension candidates. Maximal degree in co-relation 1211342. Up to 344591 conditions per place. [2023-08-26 08:55:32,457 INFO L140 encePairwiseOnDemand]: 2433/2442 looper letters, 303 selfloop transitions, 6 changer transitions 0/336 dead transitions. [2023-08-26 08:55:32,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 336 transitions, 1679 flow [2023-08-26 08:55:32,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:55:32,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:55:32,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3375 transitions. [2023-08-26 08:55:32,460 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4606879606879607 [2023-08-26 08:55:32,460 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3375 transitions. [2023-08-26 08:55:32,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3375 transitions. [2023-08-26 08:55:32,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:55:32,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3375 transitions. [2023-08-26 08:55:32,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1125.0) internal successors, (3375), 3 states have internal predecessors, (3375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:55:32,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:55:32,466 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:55:32,466 INFO L175 Difference]: Start difference. First operand has 200 places, 227 transitions, 737 flow. Second operand 3 states and 3375 transitions. [2023-08-26 08:55:32,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 336 transitions, 1679 flow [2023-08-26 08:55:35,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 336 transitions, 1655 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 08:55:35,895 INFO L231 Difference]: Finished difference. Result has 198 places, 228 transitions, 765 flow [2023-08-26 08:55:35,895 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=765, PETRI_PLACES=198, PETRI_TRANSITIONS=228} [2023-08-26 08:55:35,896 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -106 predicate places. [2023-08-26 08:55:35,896 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 228 transitions, 765 flow [2023-08-26 08:55:35,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1043.6666666666667) internal successors, (3131), 3 states have internal predecessors, (3131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:55:35,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:55:35,896 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:55:35,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-26 08:55:35,897 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:55:35,897 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:55:35,897 INFO L85 PathProgramCache]: Analyzing trace with hash 316643892, now seen corresponding path program 1 times [2023-08-26 08:55:35,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:55:35,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930869978] [2023-08-26 08:55:35,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:55:35,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:55:35,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:55:35,942 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 08:55:35,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:55:35,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930869978] [2023-08-26 08:55:35,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930869978] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:55:35,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:55:35,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:55:35,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025874568] [2023-08-26 08:55:35,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:55:35,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:55:35,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:55:35,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:55:35,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:55:35,946 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1119 out of 2442 [2023-08-26 08:55:35,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 228 transitions, 765 flow. Second operand has 3 states, 3 states have (on average 1124.6666666666667) internal successors, (3374), 3 states have internal predecessors, (3374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:55:35,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:55:35,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1119 of 2442 [2023-08-26 08:55:35,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:55:48,280 INFO L124 PetriNetUnfolderBase]: 79509/138536 cut-off events. [2023-08-26 08:55:48,280 INFO L125 PetriNetUnfolderBase]: For 22360/22383 co-relation queries the response was YES. [2023-08-26 08:55:49,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 302969 conditions, 138536 events. 79509/138536 cut-off events. For 22360/22383 co-relation queries the response was YES. Maximal size of possible extension queue 2096. Compared 1263008 event pairs, 53121 based on Foata normal form. 4/126455 useless extension candidates. Maximal degree in co-relation 302947. Up to 106251 conditions per place. [2023-08-26 08:55:49,811 INFO L140 encePairwiseOnDemand]: 2438/2442 looper letters, 259 selfloop transitions, 4 changer transitions 0/314 dead transitions. [2023-08-26 08:55:49,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 314 transitions, 1568 flow [2023-08-26 08:55:49,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:55:49,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:55:49,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3564 transitions. [2023-08-26 08:55:49,814 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4864864864864865 [2023-08-26 08:55:49,814 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3564 transitions. [2023-08-26 08:55:49,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3564 transitions. [2023-08-26 08:55:49,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:55:49,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3564 transitions. [2023-08-26 08:55:49,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1188.0) internal successors, (3564), 3 states have internal predecessors, (3564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:55:49,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:55:49,820 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:55:49,820 INFO L175 Difference]: Start difference. First operand has 198 places, 228 transitions, 765 flow. Second operand 3 states and 3564 transitions. [2023-08-26 08:55:49,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 314 transitions, 1568 flow [2023-08-26 08:55:49,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 314 transitions, 1556 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 08:55:49,985 INFO L231 Difference]: Finished difference. Result has 200 places, 230 transitions, 779 flow [2023-08-26 08:55:49,985 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=753, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=779, PETRI_PLACES=200, PETRI_TRANSITIONS=230} [2023-08-26 08:55:49,986 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -104 predicate places. [2023-08-26 08:55:49,986 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 230 transitions, 779 flow [2023-08-26 08:55:49,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1124.6666666666667) internal successors, (3374), 3 states have internal predecessors, (3374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:55:49,986 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:55:49,986 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:55:49,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-26 08:55:49,987 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:55:49,987 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:55:49,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1967292999, now seen corresponding path program 1 times [2023-08-26 08:55:49,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:55:49,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195787942] [2023-08-26 08:55:49,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:55:49,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:55:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:55:50,164 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-26 08:55:50,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:55:50,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195787942] [2023-08-26 08:55:50,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195787942] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 08:55:50,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648611147] [2023-08-26 08:55:50,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:55:50,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:55:50,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:55:50,167 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 08:55:50,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-26 08:55:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:55:50,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 8 conjunts are in the unsatisfiable core [2023-08-26 08:55:50,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:55:50,441 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-26 08:55:50,442 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 08:55:50,508 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-08-26 08:55:50,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648611147] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 08:55:50,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 08:55:50,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 17 [2023-08-26 08:55:50,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384648710] [2023-08-26 08:55:50,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 08:55:50,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-08-26 08:55:50,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:55:50,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-08-26 08:55:50,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=166, Unknown=0, NotChecked=0, Total=272 [2023-08-26 08:55:50,519 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1098 out of 2442 [2023-08-26 08:55:50,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 230 transitions, 779 flow. Second operand has 17 states, 17 states have (on average 1100.0) internal successors, (18700), 17 states have internal predecessors, (18700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:55:50,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:55:50,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1098 of 2442 [2023-08-26 08:55:50,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:03,958 INFO L124 PetriNetUnfolderBase]: 79539/138064 cut-off events. [2023-08-26 08:56:03,958 INFO L125 PetriNetUnfolderBase]: For 28187/28206 co-relation queries the response was YES. [2023-08-26 08:56:05,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304946 conditions, 138064 events. 79539/138064 cut-off events. For 28187/28206 co-relation queries the response was YES. Maximal size of possible extension queue 2115. Compared 1248047 event pairs, 60509 based on Foata normal form. 1/126590 useless extension candidates. Maximal degree in co-relation 304923. Up to 120521 conditions per place. [2023-08-26 08:56:05,991 INFO L140 encePairwiseOnDemand]: 2437/2442 looper letters, 169 selfloop transitions, 12 changer transitions 0/232 dead transitions. [2023-08-26 08:56:05,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 232 transitions, 1153 flow [2023-08-26 08:56:05,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 08:56:05,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 08:56:05,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7835 transitions. [2023-08-26 08:56:05,998 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45834795834795833 [2023-08-26 08:56:05,998 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 7835 transitions. [2023-08-26 08:56:05,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 7835 transitions. [2023-08-26 08:56:05,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:06,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 7835 transitions. [2023-08-26 08:56:06,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 1119.2857142857142) internal successors, (7835), 7 states have internal predecessors, (7835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:06,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 2442.0) internal successors, (19536), 8 states have internal predecessors, (19536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:06,015 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 2442.0) internal successors, (19536), 8 states have internal predecessors, (19536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:06,015 INFO L175 Difference]: Start difference. First operand has 200 places, 230 transitions, 779 flow. Second operand 7 states and 7835 transitions. [2023-08-26 08:56:06,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 232 transitions, 1153 flow [2023-08-26 08:56:06,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 232 transitions, 1145 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 08:56:06,175 INFO L231 Difference]: Finished difference. Result has 205 places, 232 transitions, 817 flow [2023-08-26 08:56:06,175 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=771, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=817, PETRI_PLACES=205, PETRI_TRANSITIONS=232} [2023-08-26 08:56:06,176 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -99 predicate places. [2023-08-26 08:56:06,177 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 232 transitions, 817 flow [2023-08-26 08:56:06,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1100.0) internal successors, (18700), 17 states have internal predecessors, (18700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:06,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:06,179 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:56:06,186 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-08-26 08:56:06,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:56:06,387 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:56:06,393 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:06,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1024821711, now seen corresponding path program 2 times [2023-08-26 08:56:06,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:06,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118514249] [2023-08-26 08:56:06,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:06,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:06,571 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-26 08:56:06,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:06,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118514249] [2023-08-26 08:56:06,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118514249] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:06,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:56:06,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 08:56:06,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525507801] [2023-08-26 08:56:06,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:06,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:56:06,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:06,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:56:06,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 08:56:06,576 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1109 out of 2442 [2023-08-26 08:56:06,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 232 transitions, 817 flow. Second operand has 3 states, 3 states have (on average 1114.6666666666667) internal successors, (3344), 3 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:06,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:06,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1109 of 2442 [2023-08-26 08:56:06,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:21,825 INFO L124 PetriNetUnfolderBase]: 93564/162755 cut-off events. [2023-08-26 08:56:21,826 INFO L125 PetriNetUnfolderBase]: For 27733/27787 co-relation queries the response was YES. [2023-08-26 08:56:22,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 356517 conditions, 162755 events. 93564/162755 cut-off events. For 27733/27787 co-relation queries the response was YES. Maximal size of possible extension queue 2323. Compared 1487721 event pairs, 47508 based on Foata normal form. 916/151180 useless extension candidates. Maximal degree in co-relation 356493. Up to 88864 conditions per place. [2023-08-26 08:56:23,656 INFO L140 encePairwiseOnDemand]: 2433/2442 looper letters, 284 selfloop transitions, 8 changer transitions 0/343 dead transitions. [2023-08-26 08:56:23,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 343 transitions, 1742 flow [2023-08-26 08:56:23,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:56:23,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:56:23,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3561 transitions. [2023-08-26 08:56:23,659 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4860769860769861 [2023-08-26 08:56:23,659 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3561 transitions. [2023-08-26 08:56:23,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3561 transitions. [2023-08-26 08:56:23,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:23,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3561 transitions. [2023-08-26 08:56:23,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1187.0) internal successors, (3561), 3 states have internal predecessors, (3561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:23,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:23,665 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:23,665 INFO L175 Difference]: Start difference. First operand has 205 places, 232 transitions, 817 flow. Second operand 3 states and 3561 transitions. [2023-08-26 08:56:23,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 343 transitions, 1742 flow [2023-08-26 08:56:23,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 343 transitions, 1718 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-08-26 08:56:23,767 INFO L231 Difference]: Finished difference. Result has 205 places, 239 transitions, 872 flow [2023-08-26 08:56:23,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=793, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=872, PETRI_PLACES=205, PETRI_TRANSITIONS=239} [2023-08-26 08:56:23,768 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -99 predicate places. [2023-08-26 08:56:23,768 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 239 transitions, 872 flow [2023-08-26 08:56:23,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1114.6666666666667) internal successors, (3344), 3 states have internal predecessors, (3344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:23,769 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:23,769 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 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] [2023-08-26 08:56:23,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-26 08:56:23,769 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err53ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:56:23,769 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:23,769 INFO L85 PathProgramCache]: Analyzing trace with hash -734239488, now seen corresponding path program 1 times [2023-08-26 08:56:23,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:23,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94280969] [2023-08-26 08:56:23,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:23,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:23,878 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-26 08:56:23,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:23,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94280969] [2023-08-26 08:56:23,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94280969] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 08:56:23,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126551565] [2023-08-26 08:56:23,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:23,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:56:23,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:56:23,880 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 08:56:23,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-26 08:56:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:24,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-26 08:56:24,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:56:24,123 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-08-26 08:56:24,123 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 08:56:24,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126551565] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:24,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-26 08:56:24,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-08-26 08:56:24,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643276169] [2023-08-26 08:56:24,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:24,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:56:24,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:24,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:56:24,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:56:24,126 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1117 out of 2442 [2023-08-26 08:56:24,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 239 transitions, 872 flow. Second operand has 3 states, 3 states have (on average 1126.3333333333333) internal successors, (3379), 3 states have internal predecessors, (3379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:24,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:24,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1117 of 2442 [2023-08-26 08:56:24,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:40,489 INFO L124 PetriNetUnfolderBase]: 96970/167912 cut-off events. [2023-08-26 08:56:40,489 INFO L125 PetriNetUnfolderBase]: For 43897/43955 co-relation queries the response was YES. [2023-08-26 08:56:41,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 385490 conditions, 167912 events. 96970/167912 cut-off events. For 43897/43955 co-relation queries the response was YES. Maximal size of possible extension queue 2519. Compared 1547097 event pairs, 71047 based on Foata normal form. 8/157584 useless extension candidates. Maximal degree in co-relation 385464. Up to 140197 conditions per place. [2023-08-26 08:56:42,453 INFO L140 encePairwiseOnDemand]: 2438/2442 looper letters, 342 selfloop transitions, 2 changer transitions 0/391 dead transitions. [2023-08-26 08:56:42,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 391 transitions, 2080 flow [2023-08-26 08:56:42,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:56:42,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:56:42,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3622 transitions. [2023-08-26 08:56:42,457 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4944034944034944 [2023-08-26 08:56:42,457 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3622 transitions. [2023-08-26 08:56:42,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3622 transitions. [2023-08-26 08:56:42,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:56:42,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3622 transitions. [2023-08-26 08:56:42,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1207.3333333333333) internal successors, (3622), 3 states have internal predecessors, (3622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:42,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:42,466 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:42,466 INFO L175 Difference]: Start difference. First operand has 205 places, 239 transitions, 872 flow. Second operand 3 states and 3622 transitions. [2023-08-26 08:56:42,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 391 transitions, 2080 flow [2023-08-26 08:56:42,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 391 transitions, 2050 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-26 08:56:42,696 INFO L231 Difference]: Finished difference. Result has 204 places, 239 transitions, 868 flow [2023-08-26 08:56:42,696 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=868, PETRI_PLACES=204, PETRI_TRANSITIONS=239} [2023-08-26 08:56:42,696 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -100 predicate places. [2023-08-26 08:56:42,697 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 239 transitions, 868 flow [2023-08-26 08:56:42,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1126.3333333333333) internal successors, (3379), 3 states have internal predecessors, (3379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:42,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:56:42,697 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 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] [2023-08-26 08:56:42,703 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-08-26 08:56:42,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:56:42,898 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err53ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:56:42,898 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:56:42,898 INFO L85 PathProgramCache]: Analyzing trace with hash -156121077, now seen corresponding path program 1 times [2023-08-26 08:56:42,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:56:42,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414251658] [2023-08-26 08:56:42,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:42,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:56:42,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:42,980 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-26 08:56:42,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:56:42,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414251658] [2023-08-26 08:56:42,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414251658] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 08:56:42,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50517107] [2023-08-26 08:56:42,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:56:42,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 08:56:42,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 08:56:42,985 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 08:56:42,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-08-26 08:56:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:56:43,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-26 08:56:43,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 08:56:43,238 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-08-26 08:56:43,238 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-08-26 08:56:43,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50517107] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:56:43,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-08-26 08:56:43,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-08-26 08:56:43,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985224871] [2023-08-26 08:56:43,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:56:43,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 08:56:43,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:56:43,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 08:56:43,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:56:43,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1117 out of 2442 [2023-08-26 08:56:43,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 239 transitions, 868 flow. Second operand has 3 states, 3 states have (on average 1125.0) internal successors, (3375), 3 states have internal predecessors, (3375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:56:43,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:56:43,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1117 of 2442 [2023-08-26 08:56:43,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:56:59,572 INFO L124 PetriNetUnfolderBase]: 96990/167225 cut-off events. [2023-08-26 08:56:59,572 INFO L125 PetriNetUnfolderBase]: For 35622/35676 co-relation queries the response was YES. [2023-08-26 08:57:00,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381673 conditions, 167225 events. 96990/167225 cut-off events. For 35622/35676 co-relation queries the response was YES. Maximal size of possible extension queue 2500. Compared 1530822 event pairs, 71087 based on Foata normal form. 0/155948 useless extension candidates. Maximal degree in co-relation 381647. Up to 140251 conditions per place. [2023-08-26 08:57:01,514 INFO L140 encePairwiseOnDemand]: 2438/2442 looper letters, 343 selfloop transitions, 2 changer transitions 0/391 dead transitions. [2023-08-26 08:57:01,514 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 391 transitions, 2067 flow [2023-08-26 08:57:01,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 08:57:01,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 08:57:01,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3622 transitions. [2023-08-26 08:57:01,518 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4944034944034944 [2023-08-26 08:57:01,519 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3622 transitions. [2023-08-26 08:57:01,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3622 transitions. [2023-08-26 08:57:01,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:57:01,519 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3622 transitions. [2023-08-26 08:57:01,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1207.3333333333333) internal successors, (3622), 3 states have internal predecessors, (3622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:01,526 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:01,527 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2442.0) internal successors, (9768), 4 states have internal predecessors, (9768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:01,527 INFO L175 Difference]: Start difference. First operand has 204 places, 239 transitions, 868 flow. Second operand 3 states and 3622 transitions. [2023-08-26 08:57:01,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 391 transitions, 2067 flow [2023-08-26 08:57:01,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 391 transitions, 2067 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:57:01,659 INFO L231 Difference]: Finished difference. Result has 205 places, 239 transitions, 880 flow [2023-08-26 08:57:01,659 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=864, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=880, PETRI_PLACES=205, PETRI_TRANSITIONS=239} [2023-08-26 08:57:01,660 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -99 predicate places. [2023-08-26 08:57:01,660 INFO L495 AbstractCegarLoop]: Abstraction has has 205 places, 239 transitions, 880 flow [2023-08-26 08:57:01,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1125.0) internal successors, (3375), 3 states have internal predecessors, (3375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:01,661 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:57:01,661 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 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] [2023-08-26 08:57:01,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-08-26 08:57:01,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-08-26 08:57:01,867 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:57:01,867 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:57:01,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1128509118, now seen corresponding path program 1 times [2023-08-26 08:57:01,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:57:01,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508410620] [2023-08-26 08:57:01,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:57:01,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:57:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:57:02,338 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-26 08:57:02,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:57:02,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508410620] [2023-08-26 08:57:02,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508410620] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:57:02,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:57:02,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:57:02,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996351213] [2023-08-26 08:57:02,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:57:02,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 08:57:02,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:57:02,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 08:57:02,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 08:57:02,343 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1054 out of 2442 [2023-08-26 08:57:02,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 239 transitions, 880 flow. Second operand has 6 states, 6 states have (on average 1058.6666666666667) internal successors, (6352), 6 states have internal predecessors, (6352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:57:02,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:57:02,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1054 of 2442 [2023-08-26 08:57:02,346 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 08:58:03,319 INFO L124 PetriNetUnfolderBase]: 399784/611581 cut-off events. [2023-08-26 08:58:03,319 INFO L125 PetriNetUnfolderBase]: For 120858/120902 co-relation queries the response was YES. [2023-08-26 08:58:07,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1447750 conditions, 611581 events. 399784/611581 cut-off events. For 120858/120902 co-relation queries the response was YES. Maximal size of possible extension queue 6618. Compared 5348519 event pairs, 322123 based on Foata normal form. 0/576612 useless extension candidates. Maximal degree in co-relation 1447723. Up to 575252 conditions per place. [2023-08-26 08:58:09,505 INFO L140 encePairwiseOnDemand]: 2437/2442 looper letters, 530 selfloop transitions, 4 changer transitions 0/562 dead transitions. [2023-08-26 08:58:09,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 562 transitions, 3014 flow [2023-08-26 08:58:09,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 08:58:09,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 08:58:09,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6739 transitions. [2023-08-26 08:58:09,510 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45993720993720993 [2023-08-26 08:58:09,510 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 6739 transitions. [2023-08-26 08:58:09,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6739 transitions. [2023-08-26 08:58:09,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 08:58:09,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 6739 transitions. [2023-08-26 08:58:09,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 1123.1666666666667) internal successors, (6739), 6 states have internal predecessors, (6739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:58:09,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 2442.0) internal successors, (17094), 7 states have internal predecessors, (17094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:58:09,521 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 2442.0) internal successors, (17094), 7 states have internal predecessors, (17094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:58:09,521 INFO L175 Difference]: Start difference. First operand has 205 places, 239 transitions, 880 flow. Second operand 6 states and 6739 transitions. [2023-08-26 08:58:09,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 562 transitions, 3014 flow [2023-08-26 08:58:10,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 562 transitions, 3014 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 08:58:10,797 INFO L231 Difference]: Finished difference. Result has 209 places, 238 transitions, 886 flow [2023-08-26 08:58:10,797 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2442, PETRI_DIFFERENCE_MINUEND_FLOW=878, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=886, PETRI_PLACES=209, PETRI_TRANSITIONS=238} [2023-08-26 08:58:10,798 INFO L281 CegarLoopForPetriNet]: 304 programPoint places, -95 predicate places. [2023-08-26 08:58:10,798 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 238 transitions, 886 flow [2023-08-26 08:58:10,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1058.6666666666667) internal successors, (6352), 6 states have internal predecessors, (6352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:58:10,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 08:58:10,799 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 08:58:10,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-08-26 08:58:10,799 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err57ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err58ASSERT_VIOLATIONDATA_RACE (and 285 more)] === [2023-08-26 08:58:10,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 08:58:10,799 INFO L85 PathProgramCache]: Analyzing trace with hash -797293008, now seen corresponding path program 1 times [2023-08-26 08:58:10,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 08:58:10,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117137860] [2023-08-26 08:58:10,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 08:58:10,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 08:58:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 08:58:10,907 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-08-26 08:58:10,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 08:58:10,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117137860] [2023-08-26 08:58:10,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117137860] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 08:58:10,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 08:58:10,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 08:58:10,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123233249] [2023-08-26 08:58:10,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 08:58:10,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 08:58:10,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 08:58:10,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 08:58:10,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-26 08:58:10,911 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1105 out of 2442 [2023-08-26 08:58:10,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 238 transitions, 886 flow. Second operand has 5 states, 5 states have (on average 1110.8) internal successors, (5554), 5 states have internal predecessors, (5554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 08:58:10,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 08:58:10,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1105 of 2442 [2023-08-26 08:58:10,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand