/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 05:11:39,378 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 05:11:39,452 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 05:11:39,462 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 05:11:39,463 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 05:11:39,501 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 05:11:39,502 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 05:11:39,502 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 05:11:39,502 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 05:11:39,506 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 05:11:39,506 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 05:11:39,506 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 05:11:39,507 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 05:11:39,508 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 05:11:39,508 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 05:11:39,508 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 05:11:39,508 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 05:11:39,509 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 05:11:39,509 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 05:11:39,509 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 05:11:39,509 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 05:11:39,510 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 05:11:39,510 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 05:11:39,511 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 05:11:39,511 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 05:11:39,511 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 05:11:39,511 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 05:11:39,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:11:39,512 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 05:11:39,512 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 05:11:39,513 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 05:11:39,513 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 05:11:39,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 05:11:39,513 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 05:11:39,514 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 05:11:39,514 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 05:11:39,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 05:11:39,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 05:11:39,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 05:11:39,853 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 05:11:39,853 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 05:11:39,854 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2023-08-25 05:11:41,088 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 05:11:41,335 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 05:11:41,336 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2023-08-25 05:11:41,346 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a50a46ba3/3743463746b7406da4e9bf4193f45ab3/FLAG8aaf2430c [2023-08-25 05:11:41,361 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a50a46ba3/3743463746b7406da4e9bf4193f45ab3 [2023-08-25 05:11:41,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 05:11:41,368 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 05:11:41,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 05:11:41,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 05:11:41,374 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 05:11:41,375 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:11:41" (1/1) ... [2023-08-25 05:11:41,376 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c0a0774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:11:41, skipping insertion in model container [2023-08-25 05:11:41,376 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:11:41" (1/1) ... [2023-08-25 05:11:41,398 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 05:11:41,588 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:11:41,600 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 05:11:41,649 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 05:11:41,663 INFO L206 MainTranslator]: Completed translation [2023-08-25 05:11:41,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:11:41 WrapperNode [2023-08-25 05:11:41,666 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 05:11:41,667 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 05:11:41,667 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 05:11:41,667 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 05:11:41,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:11:41" (1/1) ... [2023-08-25 05:11:41,690 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:11:41" (1/1) ... [2023-08-25 05:11:41,723 INFO L138 Inliner]: procedures = 22, calls = 27, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 120 [2023-08-25 05:11:41,724 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 05:11:41,725 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 05:11:41,725 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 05:11:41,725 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 05:11:41,732 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:11:41" (1/1) ... [2023-08-25 05:11:41,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:11:41" (1/1) ... [2023-08-25 05:11:41,748 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:11:41" (1/1) ... [2023-08-25 05:11:41,749 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:11:41" (1/1) ... [2023-08-25 05:11:41,755 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:11:41" (1/1) ... [2023-08-25 05:11:41,756 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:11:41" (1/1) ... [2023-08-25 05:11:41,758 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:11:41" (1/1) ... [2023-08-25 05:11:41,759 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:11:41" (1/1) ... [2023-08-25 05:11:41,771 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 05:11:41,772 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 05:11:41,772 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 05:11:41,772 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 05:11:41,772 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:11:41" (1/1) ... [2023-08-25 05:11:41,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 05:11:41,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 05:11:41,810 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 05:11:41,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 05:11:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 05:11:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 05:11:41,847 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 05:11:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 05:11:41,847 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 05:11:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 05:11:41,848 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 05:11:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 05:11:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 05:11:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 05:11:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 05:11:41,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 05:11:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 05:11:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 05:11:41,850 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 05:11:41,959 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 05:11:41,961 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 05:11:42,275 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 05:11:42,282 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 05:11:42,282 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 05:11:42,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:11:42 BoogieIcfgContainer [2023-08-25 05:11:42,290 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 05:11:42,293 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 05:11:42,293 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 05:11:42,295 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 05:11:42,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:11:41" (1/3) ... [2023-08-25 05:11:42,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@239028ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:11:42, skipping insertion in model container [2023-08-25 05:11:42,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:11:41" (2/3) ... [2023-08-25 05:11:42,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@239028ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:11:42, skipping insertion in model container [2023-08-25 05:11:42,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:11:42" (3/3) ... [2023-08-25 05:11:42,298 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-subst.wvr.c [2023-08-25 05:11:42,314 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 05:11:42,315 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-08-25 05:11:42,315 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 05:11:42,418 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 05:11:42,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 205 places, 201 transitions, 426 flow [2023-08-25 05:11:42,552 INFO L124 PetriNetUnfolderBase]: 6/198 cut-off events. [2023-08-25 05:11:42,552 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 05:11:42,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 198 events. 6/198 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 260 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 110. Up to 2 conditions per place. [2023-08-25 05:11:42,560 INFO L82 GeneralOperation]: Start removeDead. Operand has 205 places, 201 transitions, 426 flow [2023-08-25 05:11:42,574 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 191 places, 187 transitions, 392 flow [2023-08-25 05:11:42,577 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 05:11:42,589 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 191 places, 187 transitions, 392 flow [2023-08-25 05:11:42,597 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 191 places, 187 transitions, 392 flow [2023-08-25 05:11:42,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 187 transitions, 392 flow [2023-08-25 05:11:42,648 INFO L124 PetriNetUnfolderBase]: 6/187 cut-off events. [2023-08-25 05:11:42,648 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 05:11:42,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 187 events. 6/187 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 258 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2023-08-25 05:11:42,655 INFO L119 LiptonReduction]: Number of co-enabled transitions 6072 [2023-08-25 05:11:46,895 INFO L134 LiptonReduction]: Checked pairs total: 21538 [2023-08-25 05:11:46,895 INFO L136 LiptonReduction]: Total number of compositions: 180 [2023-08-25 05:11:46,908 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 05:11:46,914 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;@6b824045, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 05:11:46,914 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2023-08-25 05:11:46,915 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 05:11:46,915 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 05:11:46,915 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 05:11:46,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:11:46,916 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 05:11:46,916 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 05:11:46,919 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:11:46,920 INFO L85 PathProgramCache]: Analyzing trace with hash 704, now seen corresponding path program 1 times [2023-08-25 05:11:46,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:11:46,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449873702] [2023-08-25 05:11:46,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:11:46,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:11:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:11:47,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:11:47,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:11:47,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449873702] [2023-08-25 05:11:47,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449873702] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:11:47,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:11:47,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 05:11:47,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942928289] [2023-08-25 05:11:47,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:11:47,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 05:11:47,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:11:47,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 05:11:47,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 05:11:47,035 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 381 [2023-08-25 05:11:47,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 60 transitions, 138 flow. Second operand has 2 states, 2 states have (on average 192.5) internal successors, (385), 2 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:47,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:11:47,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 381 [2023-08-25 05:11:47,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:11:47,199 INFO L124 PetriNetUnfolderBase]: 465/771 cut-off events. [2023-08-25 05:11:47,199 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2023-08-25 05:11:47,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1515 conditions, 771 events. 465/771 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 4032 event pairs, 333 based on Foata normal form. 0/569 useless extension candidates. Maximal degree in co-relation 1255. Up to 677 conditions per place. [2023-08-25 05:11:47,211 INFO L140 encePairwiseOnDemand]: 369/381 looper letters, 25 selfloop transitions, 0 changer transitions 0/48 dead transitions. [2023-08-25 05:11:47,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 48 transitions, 164 flow [2023-08-25 05:11:47,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 05:11:47,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 05:11:47,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 421 transitions. [2023-08-25 05:11:47,234 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.55249343832021 [2023-08-25 05:11:47,234 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 421 transitions. [2023-08-25 05:11:47,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 421 transitions. [2023-08-25 05:11:47,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:11:47,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 421 transitions. [2023-08-25 05:11:47,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 210.5) internal successors, (421), 2 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:47,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 381.0) internal successors, (1143), 3 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:47,254 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 381.0) internal successors, (1143), 3 states have internal predecessors, (1143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:47,256 INFO L175 Difference]: Start difference. First operand has 67 places, 60 transitions, 138 flow. Second operand 2 states and 421 transitions. [2023-08-25 05:11:47,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 48 transitions, 164 flow [2023-08-25 05:11:47,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 48 transitions, 152 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-25 05:11:47,263 INFO L231 Difference]: Finished difference. Result has 50 places, 48 transitions, 102 flow [2023-08-25 05:11:47,265 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=102, PETRI_PLACES=50, PETRI_TRANSITIONS=48} [2023-08-25 05:11:47,273 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -17 predicate places. [2023-08-25 05:11:47,274 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 48 transitions, 102 flow [2023-08-25 05:11:47,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 192.5) internal successors, (385), 2 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:47,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:11:47,274 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-25 05:11:47,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 05:11:47,275 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 05:11:47,276 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:11:47,276 INFO L85 PathProgramCache]: Analyzing trace with hash 21550508, now seen corresponding path program 1 times [2023-08-25 05:11:47,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:11:47,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439641440] [2023-08-25 05:11:47,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:11:47,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:11:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:11:47,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:11:47,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:11:47,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439641440] [2023-08-25 05:11:47,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439641440] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:11:47,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:11:47,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:11:47,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883607156] [2023-08-25 05:11:47,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:11:47,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:11:47,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:11:47,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:11:47,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:11:47,373 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 381 [2023-08-25 05:11:47,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 48 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:47,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:11:47,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 381 [2023-08-25 05:11:47,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:11:47,574 INFO L124 PetriNetUnfolderBase]: 981/1729 cut-off events. [2023-08-25 05:11:47,574 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-25 05:11:47,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3187 conditions, 1729 events. 981/1729 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 10749 event pairs, 243 based on Foata normal form. 0/1478 useless extension candidates. Maximal degree in co-relation 3184. Up to 1394 conditions per place. [2023-08-25 05:11:47,584 INFO L140 encePairwiseOnDemand]: 377/381 looper letters, 38 selfloop transitions, 2 changer transitions 0/57 dead transitions. [2023-08-25 05:11:47,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 57 transitions, 202 flow [2023-08-25 05:11:47,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:11:47,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:11:47,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 591 transitions. [2023-08-25 05:11:47,586 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5170603674540682 [2023-08-25 05:11:47,586 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 591 transitions. [2023-08-25 05:11:47,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 591 transitions. [2023-08-25 05:11:47,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:11:47,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 591 transitions. [2023-08-25 05:11:47,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:47,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:47,592 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:47,592 INFO L175 Difference]: Start difference. First operand has 50 places, 48 transitions, 102 flow. Second operand 3 states and 591 transitions. [2023-08-25 05:11:47,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 57 transitions, 202 flow [2023-08-25 05:11:47,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 57 transitions, 202 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:11:47,594 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 112 flow [2023-08-25 05:11:47,594 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2023-08-25 05:11:47,595 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -16 predicate places. [2023-08-25 05:11:47,595 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 112 flow [2023-08-25 05:11:47,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:47,596 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:11:47,596 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 05:11:47,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 05:11:47,596 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 05:11:47,597 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:11:47,597 INFO L85 PathProgramCache]: Analyzing trace with hash -764783698, now seen corresponding path program 1 times [2023-08-25 05:11:47,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:11:47,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818587568] [2023-08-25 05:11:47,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:11:47,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:11:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:11:47,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:11:47,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:11:47,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818587568] [2023-08-25 05:11:47,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818587568] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:11:47,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:11:47,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:11:47,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224810088] [2023-08-25 05:11:47,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:11:47,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:11:47,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:11:47,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:11:47,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:11:47,635 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 180 out of 381 [2023-08-25 05:11:47,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:47,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:11:47,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 180 of 381 [2023-08-25 05:11:47,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:11:47,796 INFO L124 PetriNetUnfolderBase]: 1012/1715 cut-off events. [2023-08-25 05:11:47,796 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-08-25 05:11:47,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3223 conditions, 1715 events. 1012/1715 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 10142 event pairs, 228 based on Foata normal form. 0/1462 useless extension candidates. Maximal degree in co-relation 3219. Up to 1407 conditions per place. [2023-08-25 05:11:47,807 INFO L140 encePairwiseOnDemand]: 376/381 looper letters, 38 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2023-08-25 05:11:47,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 56 transitions, 210 flow [2023-08-25 05:11:47,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:11:47,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:11:47,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 583 transitions. [2023-08-25 05:11:47,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.510061242344707 [2023-08-25 05:11:47,810 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 583 transitions. [2023-08-25 05:11:47,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 583 transitions. [2023-08-25 05:11:47,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:11:47,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 583 transitions. [2023-08-25 05:11:47,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:47,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:47,815 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:47,815 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 112 flow. Second operand 3 states and 583 transitions. [2023-08-25 05:11:47,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 56 transitions, 210 flow [2023-08-25 05:11:47,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 56 transitions, 210 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:11:47,817 INFO L231 Difference]: Finished difference. Result has 51 places, 47 transitions, 120 flow [2023-08-25 05:11:47,817 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=51, PETRI_TRANSITIONS=47} [2023-08-25 05:11:47,817 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -16 predicate places. [2023-08-25 05:11:47,818 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 47 transitions, 120 flow [2023-08-25 05:11:47,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 181.33333333333334) internal successors, (544), 3 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:47,818 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:11:47,818 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:11:47,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 05:11:47,819 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 05:11:47,819 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:11:47,819 INFO L85 PathProgramCache]: Analyzing trace with hash 2061515684, now seen corresponding path program 1 times [2023-08-25 05:11:47,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:11:47,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787617371] [2023-08-25 05:11:47,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:11:47,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:11:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:11:47,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:11:47,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:11:47,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787617371] [2023-08-25 05:11:47,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787617371] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:11:47,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:11:47,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:11:47,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627524965] [2023-08-25 05:11:47,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:11:47,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:11:47,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:11:47,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:11:47,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:11:47,861 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 381 [2023-08-25 05:11:47,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 47 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:47,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:11:47,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 381 [2023-08-25 05:11:47,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:11:47,972 INFO L124 PetriNetUnfolderBase]: 565/946 cut-off events. [2023-08-25 05:11:47,972 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-25 05:11:47,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1833 conditions, 946 events. 565/946 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 5167 event pairs, 319 based on Foata normal form. 0/711 useless extension candidates. Maximal degree in co-relation 1828. Up to 645 conditions per place. [2023-08-25 05:11:47,978 INFO L140 encePairwiseOnDemand]: 377/381 looper letters, 35 selfloop transitions, 3 changer transitions 0/59 dead transitions. [2023-08-25 05:11:47,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 59 transitions, 222 flow [2023-08-25 05:11:47,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:11:47,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:11:47,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 591 transitions. [2023-08-25 05:11:47,980 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5170603674540682 [2023-08-25 05:11:47,981 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 591 transitions. [2023-08-25 05:11:47,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 591 transitions. [2023-08-25 05:11:47,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:11:47,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 591 transitions. [2023-08-25 05:11:47,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:47,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:47,985 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:47,985 INFO L175 Difference]: Start difference. First operand has 51 places, 47 transitions, 120 flow. Second operand 3 states and 591 transitions. [2023-08-25 05:11:47,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 59 transitions, 222 flow [2023-08-25 05:11:47,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 59 transitions, 222 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:11:47,987 INFO L231 Difference]: Finished difference. Result has 52 places, 46 transitions, 124 flow [2023-08-25 05:11:47,987 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=52, PETRI_TRANSITIONS=46} [2023-08-25 05:11:47,988 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -15 predicate places. [2023-08-25 05:11:47,988 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 46 transitions, 124 flow [2023-08-25 05:11:47,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.33333333333334) internal successors, (556), 3 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:47,989 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:11:47,989 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:11:47,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 05:11:47,989 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 05:11:47,989 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:11:47,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1317315005, now seen corresponding path program 1 times [2023-08-25 05:11:47,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:11:47,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732855593] [2023-08-25 05:11:47,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:11:47,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:11:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:11:48,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:11:48,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:11:48,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732855593] [2023-08-25 05:11:48,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732855593] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:11:48,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:11:48,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:11:48,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539737243] [2023-08-25 05:11:48,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:11:48,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:11:48,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:11:48,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:11:48,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:11:48,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 381 [2023-08-25 05:11:48,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 46 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:48,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:11:48,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 381 [2023-08-25 05:11:48,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:11:48,233 INFO L124 PetriNetUnfolderBase]: 1199/1807 cut-off events. [2023-08-25 05:11:48,235 INFO L125 PetriNetUnfolderBase]: For 297/297 co-relation queries the response was YES. [2023-08-25 05:11:48,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3879 conditions, 1807 events. 1199/1807 cut-off events. For 297/297 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 8261 event pairs, 305 based on Foata normal form. 0/1594 useless extension candidates. Maximal degree in co-relation 3873. Up to 1710 conditions per place. [2023-08-25 05:11:48,246 INFO L140 encePairwiseOnDemand]: 375/381 looper letters, 38 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2023-08-25 05:11:48,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 53 transitions, 226 flow [2023-08-25 05:11:48,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:11:48,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:11:48,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 575 transitions. [2023-08-25 05:11:48,249 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5030621172353456 [2023-08-25 05:11:48,249 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 575 transitions. [2023-08-25 05:11:48,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 575 transitions. [2023-08-25 05:11:48,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:11:48,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 575 transitions. [2023-08-25 05:11:48,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 191.66666666666666) internal successors, (575), 3 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:48,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:48,254 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:48,254 INFO L175 Difference]: Start difference. First operand has 52 places, 46 transitions, 124 flow. Second operand 3 states and 575 transitions. [2023-08-25 05:11:48,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 53 transitions, 226 flow [2023-08-25 05:11:48,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 53 transitions, 214 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 05:11:48,256 INFO L231 Difference]: Finished difference. Result has 49 places, 44 transitions, 124 flow [2023-08-25 05:11:48,256 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=49, PETRI_TRANSITIONS=44} [2023-08-25 05:11:48,257 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -18 predicate places. [2023-08-25 05:11:48,257 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 44 transitions, 124 flow [2023-08-25 05:11:48,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:48,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:11:48,258 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:11:48,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 05:11:48,258 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 05:11:48,258 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:11:48,258 INFO L85 PathProgramCache]: Analyzing trace with hash -2112901764, now seen corresponding path program 1 times [2023-08-25 05:11:48,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:11:48,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832460374] [2023-08-25 05:11:48,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:11:48,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:11:48,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:11:48,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:11:48,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:11:48,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832460374] [2023-08-25 05:11:48,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832460374] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:11:48,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:11:48,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 05:11:48,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351849537] [2023-08-25 05:11:48,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:11:48,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 05:11:48,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:11:48,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 05:11:48,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 05:11:48,291 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 381 [2023-08-25 05:11:48,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 44 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:48,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:11:48,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 381 [2023-08-25 05:11:48,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:11:48,411 INFO L124 PetriNetUnfolderBase]: 632/1025 cut-off events. [2023-08-25 05:11:48,412 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-08-25 05:11:48,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2053 conditions, 1025 events. 632/1025 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4955 event pairs, 328 based on Foata normal form. 0/760 useless extension candidates. Maximal degree in co-relation 2047. Up to 666 conditions per place. [2023-08-25 05:11:48,419 INFO L140 encePairwiseOnDemand]: 377/381 looper letters, 35 selfloop transitions, 3 changer transitions 0/56 dead transitions. [2023-08-25 05:11:48,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 56 transitions, 226 flow [2023-08-25 05:11:48,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:11:48,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:11:48,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 582 transitions. [2023-08-25 05:11:48,421 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5091863517060368 [2023-08-25 05:11:48,421 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 582 transitions. [2023-08-25 05:11:48,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 582 transitions. [2023-08-25 05:11:48,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:11:48,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 582 transitions. [2023-08-25 05:11:48,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 194.0) internal successors, (582), 3 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:48,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:48,426 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:48,426 INFO L175 Difference]: Start difference. First operand has 49 places, 44 transitions, 124 flow. Second operand 3 states and 582 transitions. [2023-08-25 05:11:48,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 56 transitions, 226 flow [2023-08-25 05:11:48,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 56 transitions, 226 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:11:48,428 INFO L231 Difference]: Finished difference. Result has 50 places, 43 transitions, 128 flow [2023-08-25 05:11:48,428 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=50, PETRI_TRANSITIONS=43} [2023-08-25 05:11:48,429 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -17 predicate places. [2023-08-25 05:11:48,429 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 43 transitions, 128 flow [2023-08-25 05:11:48,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.0) internal successors, (549), 3 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:48,430 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:11:48,430 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:11:48,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 05:11:48,430 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 05:11:48,430 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:11:48,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1845462976, now seen corresponding path program 1 times [2023-08-25 05:11:48,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:11:48,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991740693] [2023-08-25 05:11:48,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:11:48,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:11:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:11:48,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:11:48,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:11:48,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991740693] [2023-08-25 05:11:48,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991740693] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:11:48,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:11:48,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:11:48,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906880787] [2023-08-25 05:11:48,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:11:48,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:11:48,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:11:48,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:11:48,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:11:48,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 381 [2023-08-25 05:11:48,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 43 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 190.75) internal successors, (763), 4 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:48,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:11:48,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 381 [2023-08-25 05:11:48,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:11:48,956 INFO L124 PetriNetUnfolderBase]: 1054/1726 cut-off events. [2023-08-25 05:11:48,956 INFO L125 PetriNetUnfolderBase]: For 300/300 co-relation queries the response was YES. [2023-08-25 05:11:48,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3806 conditions, 1726 events. 1054/1726 cut-off events. For 300/300 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 9376 event pairs, 441 based on Foata normal form. 1/1429 useless extension candidates. Maximal degree in co-relation 3799. Up to 795 conditions per place. [2023-08-25 05:11:48,966 INFO L140 encePairwiseOnDemand]: 377/381 looper letters, 53 selfloop transitions, 4 changer transitions 1/76 dead transitions. [2023-08-25 05:11:48,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 76 transitions, 325 flow [2023-08-25 05:11:48,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 05:11:48,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 05:11:48,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 803 transitions. [2023-08-25 05:11:48,969 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5269028871391076 [2023-08-25 05:11:48,969 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 803 transitions. [2023-08-25 05:11:48,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 803 transitions. [2023-08-25 05:11:48,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:11:48,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 803 transitions. [2023-08-25 05:11:48,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 200.75) internal successors, (803), 4 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:48,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 381.0) internal successors, (1905), 5 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:48,974 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 381.0) internal successors, (1905), 5 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:48,974 INFO L175 Difference]: Start difference. First operand has 50 places, 43 transitions, 128 flow. Second operand 4 states and 803 transitions. [2023-08-25 05:11:48,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 76 transitions, 325 flow [2023-08-25 05:11:48,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 76 transitions, 311 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 05:11:48,979 INFO L231 Difference]: Finished difference. Result has 52 places, 45 transitions, 141 flow [2023-08-25 05:11:48,979 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=141, PETRI_PLACES=52, PETRI_TRANSITIONS=45} [2023-08-25 05:11:48,980 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -15 predicate places. [2023-08-25 05:11:48,980 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 45 transitions, 141 flow [2023-08-25 05:11:48,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 190.75) internal successors, (763), 4 states have internal predecessors, (763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:48,984 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:11:48,984 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:11:48,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 05:11:48,984 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 05:11:48,986 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:11:48,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1587967196, now seen corresponding path program 1 times [2023-08-25 05:11:48,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:11:48,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122946352] [2023-08-25 05:11:48,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:11:48,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:11:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:11:49,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:11:49,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:11:49,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122946352] [2023-08-25 05:11:49,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122946352] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:11:49,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:11:49,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 05:11:49,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717530900] [2023-08-25 05:11:49,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:11:49,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:11:49,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:11:49,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:11:49,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:11:49,432 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 381 [2023-08-25 05:11:49,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 45 transitions, 141 flow. Second operand has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:49,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:11:49,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 381 [2023-08-25 05:11:49,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:11:49,828 INFO L124 PetriNetUnfolderBase]: 1659/2816 cut-off events. [2023-08-25 05:11:49,828 INFO L125 PetriNetUnfolderBase]: For 344/344 co-relation queries the response was YES. [2023-08-25 05:11:49,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6165 conditions, 2816 events. 1659/2816 cut-off events. For 344/344 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 17861 event pairs, 645 based on Foata normal form. 0/2310 useless extension candidates. Maximal degree in co-relation 6157. Up to 1119 conditions per place. [2023-08-25 05:11:49,849 INFO L140 encePairwiseOnDemand]: 375/381 looper letters, 71 selfloop transitions, 6 changer transitions 6/101 dead transitions. [2023-08-25 05:11:49,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 101 transitions, 456 flow [2023-08-25 05:11:49,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:11:49,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:11:49,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 967 transitions. [2023-08-25 05:11:49,852 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5076115485564304 [2023-08-25 05:11:49,852 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 967 transitions. [2023-08-25 05:11:49,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 967 transitions. [2023-08-25 05:11:49,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:11:49,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 967 transitions. [2023-08-25 05:11:49,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 193.4) internal successors, (967), 5 states have internal predecessors, (967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:49,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:49,858 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:49,858 INFO L175 Difference]: Start difference. First operand has 52 places, 45 transitions, 141 flow. Second operand 5 states and 967 transitions. [2023-08-25 05:11:49,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 101 transitions, 456 flow [2023-08-25 05:11:49,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 101 transitions, 449 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 05:11:49,861 INFO L231 Difference]: Finished difference. Result has 56 places, 49 transitions, 170 flow [2023-08-25 05:11:49,861 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=170, PETRI_PLACES=56, PETRI_TRANSITIONS=49} [2023-08-25 05:11:49,862 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -11 predicate places. [2023-08-25 05:11:49,862 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 49 transitions, 170 flow [2023-08-25 05:11:49,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:49,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:11:49,863 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:11:49,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 05:11:49,863 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 05:11:49,863 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:11:49,864 INFO L85 PathProgramCache]: Analyzing trace with hash -702196220, now seen corresponding path program 2 times [2023-08-25 05:11:49,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:11:49,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569738152] [2023-08-25 05:11:49,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:11:49,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:11:49,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:11:50,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:11:50,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:11:50,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569738152] [2023-08-25 05:11:50,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569738152] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:11:50,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:11:50,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 05:11:50,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472026697] [2023-08-25 05:11:50,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:11:50,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:11:50,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:11:50,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:11:50,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:11:50,205 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 381 [2023-08-25 05:11:50,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 49 transitions, 170 flow. Second operand has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:50,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:11:50,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 381 [2023-08-25 05:11:50,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:11:50,651 INFO L124 PetriNetUnfolderBase]: 1884/3381 cut-off events. [2023-08-25 05:11:50,651 INFO L125 PetriNetUnfolderBase]: For 1409/1620 co-relation queries the response was YES. [2023-08-25 05:11:50,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7908 conditions, 3381 events. 1884/3381 cut-off events. For 1409/1620 co-relation queries the response was YES. Maximal size of possible extension queue 242. Compared 23347 event pairs, 556 based on Foata normal form. 57/3260 useless extension candidates. Maximal degree in co-relation 7899. Up to 955 conditions per place. [2023-08-25 05:11:50,676 INFO L140 encePairwiseOnDemand]: 375/381 looper letters, 82 selfloop transitions, 8 changer transitions 3/111 dead transitions. [2023-08-25 05:11:50,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 111 transitions, 549 flow [2023-08-25 05:11:50,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:11:50,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:11:50,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 968 transitions. [2023-08-25 05:11:50,679 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5081364829396325 [2023-08-25 05:11:50,679 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 968 transitions. [2023-08-25 05:11:50,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 968 transitions. [2023-08-25 05:11:50,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:11:50,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 968 transitions. [2023-08-25 05:11:50,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 193.6) internal successors, (968), 5 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:50,684 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:50,685 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:50,685 INFO L175 Difference]: Start difference. First operand has 56 places, 49 transitions, 170 flow. Second operand 5 states and 968 transitions. [2023-08-25 05:11:50,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 111 transitions, 549 flow [2023-08-25 05:11:50,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 111 transitions, 549 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:11:50,689 INFO L231 Difference]: Finished difference. Result has 63 places, 55 transitions, 236 flow [2023-08-25 05:11:50,689 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=63, PETRI_TRANSITIONS=55} [2023-08-25 05:11:50,690 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, -4 predicate places. [2023-08-25 05:11:50,691 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 55 transitions, 236 flow [2023-08-25 05:11:50,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:50,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:11:50,691 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:11:50,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 05:11:50,692 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 05:11:50,692 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:11:50,692 INFO L85 PathProgramCache]: Analyzing trace with hash -485935542, now seen corresponding path program 1 times [2023-08-25 05:11:50,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:11:50,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896706007] [2023-08-25 05:11:50,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:11:50,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:11:50,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:11:50,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:11:50,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:11:50,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896706007] [2023-08-25 05:11:50,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896706007] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:11:50,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:11:50,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 05:11:50,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613564152] [2023-08-25 05:11:50,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:11:50,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:11:50,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:11:50,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:11:50,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:11:50,972 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 381 [2023-08-25 05:11:50,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 55 transitions, 236 flow. Second operand has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:50,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:11:50,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 381 [2023-08-25 05:11:50,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:11:51,452 INFO L124 PetriNetUnfolderBase]: 1986/3661 cut-off events. [2023-08-25 05:11:51,452 INFO L125 PetriNetUnfolderBase]: For 3968/4563 co-relation queries the response was YES. [2023-08-25 05:11:51,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9370 conditions, 3661 events. 1986/3661 cut-off events. For 3968/4563 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 25560 event pairs, 692 based on Foata normal form. 70/3542 useless extension candidates. Maximal degree in co-relation 9357. Up to 1146 conditions per place. [2023-08-25 05:11:51,481 INFO L140 encePairwiseOnDemand]: 375/381 looper letters, 82 selfloop transitions, 10 changer transitions 1/111 dead transitions. [2023-08-25 05:11:51,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 111 transitions, 624 flow [2023-08-25 05:11:51,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:11:51,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:11:51,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 966 transitions. [2023-08-25 05:11:51,485 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5070866141732283 [2023-08-25 05:11:51,485 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 966 transitions. [2023-08-25 05:11:51,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 966 transitions. [2023-08-25 05:11:51,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:11:51,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 966 transitions. [2023-08-25 05:11:51,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 193.2) internal successors, (966), 5 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:51,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:51,491 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:51,491 INFO L175 Difference]: Start difference. First operand has 63 places, 55 transitions, 236 flow. Second operand 5 states and 966 transitions. [2023-08-25 05:11:51,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 111 transitions, 624 flow [2023-08-25 05:11:51,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 111 transitions, 624 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 05:11:51,499 INFO L231 Difference]: Finished difference. Result has 70 places, 61 transitions, 323 flow [2023-08-25 05:11:51,500 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=323, PETRI_PLACES=70, PETRI_TRANSITIONS=61} [2023-08-25 05:11:51,501 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 3 predicate places. [2023-08-25 05:11:51,501 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 61 transitions, 323 flow [2023-08-25 05:11:51,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:51,501 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:11:51,502 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:11:51,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 05:11:51,502 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 05:11:51,502 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:11:51,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1153955694, now seen corresponding path program 2 times [2023-08-25 05:11:51,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:11:51,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068809905] [2023-08-25 05:11:51,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:11:51,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:11:51,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:11:51,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:11:51,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:11:51,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068809905] [2023-08-25 05:11:51,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068809905] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:11:51,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:11:51,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 05:11:51,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860912829] [2023-08-25 05:11:51,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:11:51,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:11:51,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:11:51,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:11:51,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:11:51,807 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 381 [2023-08-25 05:11:51,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 61 transitions, 323 flow. Second operand has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:51,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:11:51,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 381 [2023-08-25 05:11:51,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:11:52,271 INFO L124 PetriNetUnfolderBase]: 1856/3473 cut-off events. [2023-08-25 05:11:52,272 INFO L125 PetriNetUnfolderBase]: For 6737/7171 co-relation queries the response was YES. [2023-08-25 05:11:52,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9632 conditions, 3473 events. 1856/3473 cut-off events. For 6737/7171 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 24448 event pairs, 401 based on Foata normal form. 47/3367 useless extension candidates. Maximal degree in co-relation 9615. Up to 1254 conditions per place. [2023-08-25 05:11:52,300 INFO L140 encePairwiseOnDemand]: 376/381 looper letters, 79 selfloop transitions, 15 changer transitions 1/113 dead transitions. [2023-08-25 05:11:52,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 113 transitions, 737 flow [2023-08-25 05:11:52,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:11:52,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:11:52,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 961 transitions. [2023-08-25 05:11:52,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5044619422572179 [2023-08-25 05:11:52,303 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 961 transitions. [2023-08-25 05:11:52,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 961 transitions. [2023-08-25 05:11:52,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:11:52,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 961 transitions. [2023-08-25 05:11:52,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 192.2) internal successors, (961), 5 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:52,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:52,309 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:52,309 INFO L175 Difference]: Start difference. First operand has 70 places, 61 transitions, 323 flow. Second operand 5 states and 961 transitions. [2023-08-25 05:11:52,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 113 transitions, 737 flow [2023-08-25 05:11:52,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 113 transitions, 731 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-08-25 05:11:52,319 INFO L231 Difference]: Finished difference. Result has 78 places, 69 transitions, 472 flow [2023-08-25 05:11:52,319 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=472, PETRI_PLACES=78, PETRI_TRANSITIONS=69} [2023-08-25 05:11:52,320 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 11 predicate places. [2023-08-25 05:11:52,320 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 69 transitions, 472 flow [2023-08-25 05:11:52,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:52,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:11:52,320 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:11:52,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 05:11:52,321 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 05:11:52,321 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:11:52,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1938345134, now seen corresponding path program 3 times [2023-08-25 05:11:52,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:11:52,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251378452] [2023-08-25 05:11:52,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:11:52,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:11:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:11:52,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:11:52,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:11:52,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251378452] [2023-08-25 05:11:52,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251378452] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:11:52,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:11:52,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 05:11:52,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019810745] [2023-08-25 05:11:52,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:11:52,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:11:52,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:11:52,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:11:52,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:11:52,584 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 381 [2023-08-25 05:11:52,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 69 transitions, 472 flow. Second operand has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:52,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:11:52,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 381 [2023-08-25 05:11:52,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:11:53,094 INFO L124 PetriNetUnfolderBase]: 1763/3169 cut-off events. [2023-08-25 05:11:53,094 INFO L125 PetriNetUnfolderBase]: For 11282/11607 co-relation queries the response was YES. [2023-08-25 05:11:53,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9793 conditions, 3169 events. 1763/3169 cut-off events. For 11282/11607 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 21558 event pairs, 837 based on Foata normal form. 46/2979 useless extension candidates. Maximal degree in co-relation 9772. Up to 1661 conditions per place. [2023-08-25 05:11:53,118 INFO L140 encePairwiseOnDemand]: 376/381 looper letters, 83 selfloop transitions, 10 changer transitions 5/116 dead transitions. [2023-08-25 05:11:53,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 116 transitions, 849 flow [2023-08-25 05:11:53,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:11:53,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:11:53,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 962 transitions. [2023-08-25 05:11:53,123 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.50498687664042 [2023-08-25 05:11:53,123 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 962 transitions. [2023-08-25 05:11:53,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 962 transitions. [2023-08-25 05:11:53,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:11:53,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 962 transitions. [2023-08-25 05:11:53,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 192.4) internal successors, (962), 5 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:53,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:53,130 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:53,130 INFO L175 Difference]: Start difference. First operand has 78 places, 69 transitions, 472 flow. Second operand 5 states and 962 transitions. [2023-08-25 05:11:53,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 116 transitions, 849 flow [2023-08-25 05:11:53,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 116 transitions, 837 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-08-25 05:11:53,159 INFO L231 Difference]: Finished difference. Result has 84 places, 70 transitions, 502 flow [2023-08-25 05:11:53,160 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=502, PETRI_PLACES=84, PETRI_TRANSITIONS=70} [2023-08-25 05:11:53,161 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 17 predicate places. [2023-08-25 05:11:53,161 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 70 transitions, 502 flow [2023-08-25 05:11:53,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:53,162 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:11:53,162 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:11:53,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 05:11:53,162 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 05:11:53,163 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:11:53,163 INFO L85 PathProgramCache]: Analyzing trace with hash -605748168, now seen corresponding path program 3 times [2023-08-25 05:11:53,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:11:53,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972909619] [2023-08-25 05:11:53,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:11:53,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:11:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:11:53,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:11:53,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:11:53,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972909619] [2023-08-25 05:11:53,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972909619] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:11:53,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:11:53,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 05:11:53,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060356817] [2023-08-25 05:11:53,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:11:53,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:11:53,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:11:53,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:11:53,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:11:53,404 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 381 [2023-08-25 05:11:53,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 70 transitions, 502 flow. Second operand has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:53,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:11:53,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 381 [2023-08-25 05:11:53,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:11:53,831 INFO L124 PetriNetUnfolderBase]: 1627/3036 cut-off events. [2023-08-25 05:11:53,831 INFO L125 PetriNetUnfolderBase]: For 12221/13943 co-relation queries the response was YES. [2023-08-25 05:11:53,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9427 conditions, 3036 events. 1627/3036 cut-off events. For 12221/13943 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 21161 event pairs, 549 based on Foata normal form. 76/2990 useless extension candidates. Maximal degree in co-relation 9403. Up to 834 conditions per place. [2023-08-25 05:11:53,852 INFO L140 encePairwiseOnDemand]: 376/381 looper letters, 92 selfloop transitions, 13 changer transitions 0/123 dead transitions. [2023-08-25 05:11:53,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 123 transitions, 919 flow [2023-08-25 05:11:53,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:11:53,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:11:53,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 966 transitions. [2023-08-25 05:11:53,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5070866141732283 [2023-08-25 05:11:53,856 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 966 transitions. [2023-08-25 05:11:53,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 966 transitions. [2023-08-25 05:11:53,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:11:53,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 966 transitions. [2023-08-25 05:11:53,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 193.2) internal successors, (966), 5 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:53,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:53,861 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:53,862 INFO L175 Difference]: Start difference. First operand has 84 places, 70 transitions, 502 flow. Second operand 5 states and 966 transitions. [2023-08-25 05:11:53,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 123 transitions, 919 flow [2023-08-25 05:11:53,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 123 transitions, 907 flow, removed 6 selfloop flow, removed 0 redundant places. [2023-08-25 05:11:53,883 INFO L231 Difference]: Finished difference. Result has 91 places, 76 transitions, 611 flow [2023-08-25 05:11:53,883 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=611, PETRI_PLACES=91, PETRI_TRANSITIONS=76} [2023-08-25 05:11:53,884 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 24 predicate places. [2023-08-25 05:11:53,884 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 76 transitions, 611 flow [2023-08-25 05:11:53,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:53,884 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:11:53,884 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:11:53,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 05:11:53,885 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 05:11:53,885 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:11:53,885 INFO L85 PathProgramCache]: Analyzing trace with hash 538078350, now seen corresponding path program 4 times [2023-08-25 05:11:53,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:11:53,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427855668] [2023-08-25 05:11:53,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:11:53,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:11:53,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:11:54,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:11:54,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:11:54,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427855668] [2023-08-25 05:11:54,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427855668] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:11:54,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:11:54,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 05:11:54,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161283366] [2023-08-25 05:11:54,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:11:54,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:11:54,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:11:54,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:11:54,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:11:54,094 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 381 [2023-08-25 05:11:54,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 76 transitions, 611 flow. Second operand has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:54,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:11:54,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 381 [2023-08-25 05:11:54,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:11:54,500 INFO L124 PetriNetUnfolderBase]: 1480/2811 cut-off events. [2023-08-25 05:11:54,500 INFO L125 PetriNetUnfolderBase]: For 14681/15345 co-relation queries the response was YES. [2023-08-25 05:11:54,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9181 conditions, 2811 events. 1480/2811 cut-off events. For 14681/15345 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 19704 event pairs, 518 based on Foata normal form. 61/2726 useless extension candidates. Maximal degree in co-relation 9153. Up to 745 conditions per place. [2023-08-25 05:11:54,519 INFO L140 encePairwiseOnDemand]: 376/381 looper letters, 87 selfloop transitions, 16 changer transitions 0/121 dead transitions. [2023-08-25 05:11:54,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 121 transitions, 970 flow [2023-08-25 05:11:54,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:11:54,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:11:54,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 963 transitions. [2023-08-25 05:11:54,523 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5055118110236221 [2023-08-25 05:11:54,523 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 963 transitions. [2023-08-25 05:11:54,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 963 transitions. [2023-08-25 05:11:54,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:11:54,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 963 transitions. [2023-08-25 05:11:54,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 192.6) internal successors, (963), 5 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:54,528 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:54,528 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:54,528 INFO L175 Difference]: Start difference. First operand has 91 places, 76 transitions, 611 flow. Second operand 5 states and 963 transitions. [2023-08-25 05:11:54,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 121 transitions, 970 flow [2023-08-25 05:11:54,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 121 transitions, 956 flow, removed 7 selfloop flow, removed 0 redundant places. [2023-08-25 05:11:54,558 INFO L231 Difference]: Finished difference. Result has 98 places, 80 transitions, 705 flow [2023-08-25 05:11:54,559 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=561, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=705, PETRI_PLACES=98, PETRI_TRANSITIONS=80} [2023-08-25 05:11:54,559 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 31 predicate places. [2023-08-25 05:11:54,559 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 80 transitions, 705 flow [2023-08-25 05:11:54,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:54,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:11:54,560 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:11:54,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 05:11:54,560 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 05:11:54,560 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:11:54,560 INFO L85 PathProgramCache]: Analyzing trace with hash 2053163228, now seen corresponding path program 4 times [2023-08-25 05:11:54,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:11:54,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737918559] [2023-08-25 05:11:54,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:11:54,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:11:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:11:54,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:11:54,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:11:54,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737918559] [2023-08-25 05:11:54,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737918559] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:11:54,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:11:54,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 05:11:54,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193864049] [2023-08-25 05:11:54,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:11:54,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 05:11:54,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:11:54,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 05:11:54,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-08-25 05:11:54,771 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 381 [2023-08-25 05:11:54,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 80 transitions, 705 flow. Second operand has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:54,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:11:54,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 381 [2023-08-25 05:11:54,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:11:55,261 INFO L124 PetriNetUnfolderBase]: 1493/2778 cut-off events. [2023-08-25 05:11:55,261 INFO L125 PetriNetUnfolderBase]: For 17269/18591 co-relation queries the response was YES. [2023-08-25 05:11:55,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9659 conditions, 2778 events. 1493/2778 cut-off events. For 17269/18591 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 19254 event pairs, 647 based on Foata normal form. 59/2665 useless extension candidates. Maximal degree in co-relation 9628. Up to 1063 conditions per place. [2023-08-25 05:11:55,282 INFO L140 encePairwiseOnDemand]: 377/381 looper letters, 88 selfloop transitions, 16 changer transitions 0/122 dead transitions. [2023-08-25 05:11:55,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 122 transitions, 1079 flow [2023-08-25 05:11:55,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 05:11:55,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 05:11:55,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 959 transitions. [2023-08-25 05:11:55,286 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5034120734908136 [2023-08-25 05:11:55,286 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 959 transitions. [2023-08-25 05:11:55,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 959 transitions. [2023-08-25 05:11:55,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:11:55,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 959 transitions. [2023-08-25 05:11:55,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 191.8) internal successors, (959), 5 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:55,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:55,292 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 381.0) internal successors, (2286), 6 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:55,292 INFO L175 Difference]: Start difference. First operand has 98 places, 80 transitions, 705 flow. Second operand 5 states and 959 transitions. [2023-08-25 05:11:55,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 122 transitions, 1079 flow [2023-08-25 05:11:55,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 122 transitions, 1065 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-25 05:11:55,332 INFO L231 Difference]: Finished difference. Result has 104 places, 85 transitions, 830 flow [2023-08-25 05:11:55,332 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=830, PETRI_PLACES=104, PETRI_TRANSITIONS=85} [2023-08-25 05:11:55,332 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 37 predicate places. [2023-08-25 05:11:55,333 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 85 transitions, 830 flow [2023-08-25 05:11:55,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 181.0) internal successors, (905), 5 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:55,333 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:11:55,333 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:11:55,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 05:11:55,333 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 05:11:55,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:11:55,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1666514399, now seen corresponding path program 1 times [2023-08-25 05:11:55,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:11:55,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996467290] [2023-08-25 05:11:55,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:11:55,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:11:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:11:55,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:11:55,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:11:55,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996467290] [2023-08-25 05:11:55,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996467290] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:11:55,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:11:55,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:11:55,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117261675] [2023-08-25 05:11:55,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:11:55,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:11:55,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:11:55,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:11:55,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:11:55,461 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 381 [2023-08-25 05:11:55,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 85 transitions, 830 flow. Second operand has 4 states, 4 states have (on average 187.25) internal successors, (749), 4 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:55,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:11:55,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 381 [2023-08-25 05:11:55,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:11:55,789 INFO L124 PetriNetUnfolderBase]: 1494/2778 cut-off events. [2023-08-25 05:11:55,789 INFO L125 PetriNetUnfolderBase]: For 18204/19152 co-relation queries the response was YES. [2023-08-25 05:11:55,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10081 conditions, 2778 events. 1494/2778 cut-off events. For 18204/19152 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 19544 event pairs, 806 based on Foata normal form. 26/2611 useless extension candidates. Maximal degree in co-relation 10048. Up to 1724 conditions per place. [2023-08-25 05:11:55,807 INFO L140 encePairwiseOnDemand]: 379/381 looper letters, 54 selfloop transitions, 1 changer transitions 39/112 dead transitions. [2023-08-25 05:11:55,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 112 transitions, 1227 flow [2023-08-25 05:11:55,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 05:11:55,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 05:11:55,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 591 transitions. [2023-08-25 05:11:55,810 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5170603674540682 [2023-08-25 05:11:55,810 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 591 transitions. [2023-08-25 05:11:55,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 591 transitions. [2023-08-25 05:11:55,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:11:55,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 591 transitions. [2023-08-25 05:11:55,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:55,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:55,814 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 381.0) internal successors, (1524), 4 states have internal predecessors, (1524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:55,814 INFO L175 Difference]: Start difference. First operand has 104 places, 85 transitions, 830 flow. Second operand 3 states and 591 transitions. [2023-08-25 05:11:55,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 112 transitions, 1227 flow [2023-08-25 05:11:55,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 112 transitions, 1210 flow, removed 7 selfloop flow, removed 1 redundant places. [2023-08-25 05:11:55,853 INFO L231 Difference]: Finished difference. Result has 106 places, 67 transitions, 545 flow [2023-08-25 05:11:55,853 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=815, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=545, PETRI_PLACES=106, PETRI_TRANSITIONS=67} [2023-08-25 05:11:55,854 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 39 predicate places. [2023-08-25 05:11:55,855 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 67 transitions, 545 flow [2023-08-25 05:11:55,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 187.25) internal successors, (749), 4 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:55,855 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:11:55,855 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:11:55,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 05:11:55,855 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 05:11:55,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:11:55,856 INFO L85 PathProgramCache]: Analyzing trace with hash 65222012, now seen corresponding path program 1 times [2023-08-25 05:11:55,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:11:55,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749593707] [2023-08-25 05:11:55,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:11:55,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:11:55,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:11:56,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:11:56,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:11:56,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749593707] [2023-08-25 05:11:56,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749593707] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:11:56,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:11:56,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:11:56,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978506449] [2023-08-25 05:11:56,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:11:56,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:11:56,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:11:56,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:11:56,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:11:56,188 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 381 [2023-08-25 05:11:56,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 67 transitions, 545 flow. Second operand has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:56,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:11:56,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 381 [2023-08-25 05:11:56,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:11:56,454 INFO L124 PetriNetUnfolderBase]: 942/1919 cut-off events. [2023-08-25 05:11:56,454 INFO L125 PetriNetUnfolderBase]: For 9831/9895 co-relation queries the response was YES. [2023-08-25 05:11:56,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6404 conditions, 1919 events. 942/1919 cut-off events. For 9831/9895 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 13316 event pairs, 492 based on Foata normal form. 4/1799 useless extension candidates. Maximal degree in co-relation 6370. Up to 1060 conditions per place. [2023-08-25 05:11:56,467 INFO L140 encePairwiseOnDemand]: 378/381 looper letters, 61 selfloop transitions, 3 changer transitions 11/93 dead transitions. [2023-08-25 05:11:56,467 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 93 transitions, 845 flow [2023-08-25 05:11:56,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 05:11:56,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 05:11:56,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 760 transitions. [2023-08-25 05:11:56,470 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49868766404199477 [2023-08-25 05:11:56,470 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 760 transitions. [2023-08-25 05:11:56,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 760 transitions. [2023-08-25 05:11:56,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:11:56,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 760 transitions. [2023-08-25 05:11:56,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:56,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 381.0) internal successors, (1905), 5 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:56,474 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 381.0) internal successors, (1905), 5 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:56,474 INFO L175 Difference]: Start difference. First operand has 106 places, 67 transitions, 545 flow. Second operand 4 states and 760 transitions. [2023-08-25 05:11:56,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 93 transitions, 845 flow [2023-08-25 05:11:56,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 93 transitions, 823 flow, removed 5 selfloop flow, removed 6 redundant places. [2023-08-25 05:11:56,493 INFO L231 Difference]: Finished difference. Result has 104 places, 67 transitions, 536 flow [2023-08-25 05:11:56,493 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=536, PETRI_PLACES=104, PETRI_TRANSITIONS=67} [2023-08-25 05:11:56,494 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 37 predicate places. [2023-08-25 05:11:56,494 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 67 transitions, 536 flow [2023-08-25 05:11:56,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:56,494 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 05:11:56,494 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:11:56,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 05:11:56,495 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2023-08-25 05:11:56,495 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 05:11:56,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1453187996, now seen corresponding path program 2 times [2023-08-25 05:11:56,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 05:11:56,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084469880] [2023-08-25 05:11:56,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 05:11:56,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 05:11:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 05:11:56,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 05:11:56,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 05:11:56,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084469880] [2023-08-25 05:11:56,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084469880] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 05:11:56,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 05:11:56,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 05:11:56,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8384189] [2023-08-25 05:11:56,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 05:11:56,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 05:11:56,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 05:11:56,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 05:11:56,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 05:11:56,816 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 381 [2023-08-25 05:11:56,817 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 67 transitions, 536 flow. Second operand has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:56,817 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 05:11:56,817 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 381 [2023-08-25 05:11:56,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 05:11:57,156 INFO L124 PetriNetUnfolderBase]: 943/1900 cut-off events. [2023-08-25 05:11:57,156 INFO L125 PetriNetUnfolderBase]: For 9398/9534 co-relation queries the response was YES. [2023-08-25 05:11:57,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6496 conditions, 1900 events. 943/1900 cut-off events. For 9398/9534 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 12898 event pairs, 444 based on Foata normal form. 3/1759 useless extension candidates. Maximal degree in co-relation 6466. Up to 984 conditions per place. [2023-08-25 05:11:57,166 INFO L140 encePairwiseOnDemand]: 378/381 looper letters, 0 selfloop transitions, 0 changer transitions 94/94 dead transitions. [2023-08-25 05:11:57,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 94 transitions, 860 flow [2023-08-25 05:11:57,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 05:11:57,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 05:11:57,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 761 transitions. [2023-08-25 05:11:57,169 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49934383202099736 [2023-08-25 05:11:57,169 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 761 transitions. [2023-08-25 05:11:57,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 761 transitions. [2023-08-25 05:11:57,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 05:11:57,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 761 transitions. [2023-08-25 05:11:57,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 190.25) internal successors, (761), 4 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:57,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 381.0) internal successors, (1905), 5 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:57,174 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 381.0) internal successors, (1905), 5 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:57,174 INFO L175 Difference]: Start difference. First operand has 104 places, 67 transitions, 536 flow. Second operand 4 states and 761 transitions. [2023-08-25 05:11:57,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 94 transitions, 860 flow [2023-08-25 05:11:57,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 94 transitions, 852 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-25 05:11:57,193 INFO L231 Difference]: Finished difference. Result has 103 places, 0 transitions, 0 flow [2023-08-25 05:11:57,193 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=381, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=103, PETRI_TRANSITIONS=0} [2023-08-25 05:11:57,193 INFO L281 CegarLoopForPetriNet]: 67 programPoint places, 36 predicate places. [2023-08-25 05:11:57,194 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 0 transitions, 0 flow [2023-08-25 05:11:57,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 183.25) internal successors, (733), 4 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 05:11:57,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (38 of 39 remaining) [2023-08-25 05:11:57,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2023-08-25 05:11:57,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2023-08-25 05:11:57,199 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2023-08-25 05:11:57,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2023-08-25 05:11:57,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2023-08-25 05:11:57,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2023-08-25 05:11:57,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2023-08-25 05:11:57,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2023-08-25 05:11:57,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2023-08-25 05:11:57,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2023-08-25 05:11:57,200 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2023-08-25 05:11:57,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2023-08-25 05:11:57,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2023-08-25 05:11:57,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2023-08-25 05:11:57,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2023-08-25 05:11:57,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2023-08-25 05:11:57,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2023-08-25 05:11:57,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2023-08-25 05:11:57,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2023-08-25 05:11:57,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2023-08-25 05:11:57,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2023-08-25 05:11:57,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2023-08-25 05:11:57,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONASSERT (15 of 39 remaining) [2023-08-25 05:11:57,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 39 remaining) [2023-08-25 05:11:57,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 39 remaining) [2023-08-25 05:11:57,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 39 remaining) [2023-08-25 05:11:57,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2023-08-25 05:11:57,202 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2023-08-25 05:11:57,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2023-08-25 05:11:57,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2023-08-25 05:11:57,203 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2023-08-25 05:11:57,204 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2023-08-25 05:11:57,204 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2023-08-25 05:11:57,204 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2023-08-25 05:11:57,204 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2023-08-25 05:11:57,204 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2023-08-25 05:11:57,204 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2023-08-25 05:11:57,204 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2023-08-25 05:11:57,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 05:11:57,205 INFO L445 BasicCegarLoop]: Path program histogram: [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 05:11:57,210 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 05:11:57,210 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 05:11:57,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:11:57 BasicIcfg [2023-08-25 05:11:57,214 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 05:11:57,215 INFO L158 Benchmark]: Toolchain (without parser) took 15846.36ms. Allocated memory was 356.5MB in the beginning and 805.3MB in the end (delta: 448.8MB). Free memory was 332.3MB in the beginning and 643.9MB in the end (delta: -311.6MB). Peak memory consumption was 139.6MB. Max. memory is 16.0GB. [2023-08-25 05:11:57,215 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 356.5MB. Free memory is still 334.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 05:11:57,215 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.94ms. Allocated memory is still 356.5MB. Free memory was 332.3MB in the beginning and 321.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-25 05:11:57,215 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.74ms. Allocated memory is still 356.5MB. Free memory was 321.1MB in the beginning and 319.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 05:11:57,215 INFO L158 Benchmark]: Boogie Preprocessor took 46.23ms. Allocated memory is still 356.5MB. Free memory was 319.3MB in the beginning and 317.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 05:11:57,216 INFO L158 Benchmark]: RCFGBuilder took 518.91ms. Allocated memory is still 356.5MB. Free memory was 317.2MB in the beginning and 298.4MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 05:11:57,216 INFO L158 Benchmark]: TraceAbstraction took 14921.43ms. Allocated memory was 356.5MB in the beginning and 805.3MB in the end (delta: 448.8MB). Free memory was 297.4MB in the beginning and 643.9MB in the end (delta: -346.5MB). Peak memory consumption was 103.9MB. Max. memory is 16.0GB. [2023-08-25 05:11:57,218 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 356.5MB. Free memory is still 334.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 294.94ms. Allocated memory is still 356.5MB. Free memory was 332.3MB in the beginning and 321.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 56.74ms. Allocated memory is still 356.5MB. Free memory was 321.1MB in the beginning and 319.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 46.23ms. Allocated memory is still 356.5MB. Free memory was 319.3MB in the beginning and 317.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 518.91ms. Allocated memory is still 356.5MB. Free memory was 317.2MB in the beginning and 298.4MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 14921.43ms. Allocated memory was 356.5MB in the beginning and 805.3MB in the end (delta: 448.8MB). Free memory was 297.4MB in the beginning and 643.9MB in the end (delta: -346.5MB). Peak memory consumption was 103.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.3s, 191 PlacesBefore, 67 PlacesAfterwards, 187 TransitionsBefore, 60 TransitionsAfterwards, 6072 CoEnabledTransitionPairs, 7 FixpointIterations, 96 TrivialSequentialCompositions, 66 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 8 ConcurrentYvCompositions, 3 ChoiceCompositions, 180 TotalNumberOfCompositions, 21538 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 11470, independent: 11044, independent conditional: 0, independent unconditional: 11044, dependent: 426, dependent conditional: 0, dependent unconditional: 426, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3508, independent: 3463, independent conditional: 0, independent unconditional: 3463, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 11470, independent: 7581, independent conditional: 0, independent unconditional: 7581, dependent: 381, dependent conditional: 0, dependent unconditional: 381, unknown: 3508, unknown conditional: 0, unknown unconditional: 3508] , Statistics on independence cache: Total cache size (in pairs): 535, Positive cache size: 506, Positive conditional cache size: 0, Positive unconditional cache size: 506, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 265 locations, 39 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 14.8s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 510 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 510 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1793 IncrementalHoareTripleChecker+Invalid, 1839 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 15 mSDtfsCounter, 1793 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=830occurred in iteration=15, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 399 NumberOfCodeBlocks, 399 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 381 ConstructedInterpolants, 0 QuantifiedInterpolants, 4475 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 24 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 05:11:57,243 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...