/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/weaver/chl-simpl-str-trans.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 19:21:27,392 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 19:21:27,453 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 19:21:27,455 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 19:21:27,456 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 19:21:27,484 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 19:21:27,485 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 19:21:27,485 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 19:21:27,486 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 19:21:27,489 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 19:21:27,489 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 19:21:27,489 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 19:21:27,489 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 19:21:27,490 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 19:21:27,491 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 19:21:27,491 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 19:21:27,491 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 19:21:27,491 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 19:21:27,491 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 19:21:27,491 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 19:21:27,491 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 19:21:27,492 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 19:21:27,492 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 19:21:27,493 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 19:21:27,493 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 19:21:27,493 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 19:21:27,493 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 19:21:27,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:21:27,493 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 19:21:27,493 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 19:21:27,494 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 19:21:27,494 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 19:21:27,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 19:21:27,494 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 19:21:27,495 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 19:21:27,495 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 19:21:27,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 19:21:27,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 19:21:27,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 19:21:27,735 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 19:21:27,738 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 19:21:27,739 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-simpl-str-trans.wvr.c [2023-08-25 19:21:28,724 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 19:21:28,969 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 19:21:28,970 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-simpl-str-trans.wvr.c [2023-08-25 19:21:28,975 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a0797ceb/bfc81f8b9b7b45f8b6b1bfc821e5a19b/FLAGf25734029 [2023-08-25 19:21:28,988 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a0797ceb/bfc81f8b9b7b45f8b6b1bfc821e5a19b [2023-08-25 19:21:28,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 19:21:28,994 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 19:21:28,996 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 19:21:28,996 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 19:21:28,998 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 19:21:29,000 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:21:28" (1/1) ... [2023-08-25 19:21:29,001 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18335db0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:29, skipping insertion in model container [2023-08-25 19:21:29,001 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:21:28" (1/1) ... [2023-08-25 19:21:29,019 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 19:21:29,168 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:21:29,179 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 19:21:29,217 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 19:21:29,228 INFO L206 MainTranslator]: Completed translation [2023-08-25 19:21:29,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:29 WrapperNode [2023-08-25 19:21:29,229 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 19:21:29,230 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 19:21:29,230 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 19:21:29,230 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 19:21:29,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:29" (1/1) ... [2023-08-25 19:21:29,254 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:29" (1/1) ... [2023-08-25 19:21:29,274 INFO L138 Inliner]: procedures = 23, calls = 31, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 266 [2023-08-25 19:21:29,274 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 19:21:29,275 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 19:21:29,275 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 19:21:29,275 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 19:21:29,280 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:29" (1/1) ... [2023-08-25 19:21:29,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:29" (1/1) ... [2023-08-25 19:21:29,283 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:29" (1/1) ... [2023-08-25 19:21:29,283 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:29" (1/1) ... [2023-08-25 19:21:29,288 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:29" (1/1) ... [2023-08-25 19:21:29,289 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:29" (1/1) ... [2023-08-25 19:21:29,291 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:29" (1/1) ... [2023-08-25 19:21:29,291 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:29" (1/1) ... [2023-08-25 19:21:29,293 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 19:21:29,294 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 19:21:29,294 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 19:21:29,294 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 19:21:29,294 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:29" (1/1) ... [2023-08-25 19:21:29,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 19:21:29,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 19:21:29,314 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 19:21:29,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 19:21:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 19:21:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 19:21:29,343 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 19:21:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 19:21:29,343 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 19:21:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 19:21:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 19:21:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 19:21:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 19:21:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 19:21:29,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 19:21:29,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 19:21:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 19:21:29,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 19:21:29,346 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 19:21:29,422 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 19:21:29,423 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 19:21:29,797 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 19:21:29,804 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 19:21:29,804 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 19:21:29,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:21:29 BoogieIcfgContainer [2023-08-25 19:21:29,805 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 19:21:29,807 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 19:21:29,807 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 19:21:29,809 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 19:21:29,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:21:28" (1/3) ... [2023-08-25 19:21:29,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668373f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:21:29, skipping insertion in model container [2023-08-25 19:21:29,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:21:29" (2/3) ... [2023-08-25 19:21:29,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@668373f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:21:29, skipping insertion in model container [2023-08-25 19:21:29,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:21:29" (3/3) ... [2023-08-25 19:21:29,811 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-trans.wvr.c [2023-08-25 19:21:29,824 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 19:21:29,824 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2023-08-25 19:21:29,824 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 19:21:29,920 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-08-25 19:21:29,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 318 places, 323 transitions, 670 flow [2023-08-25 19:21:30,069 INFO L124 PetriNetUnfolderBase]: 15/320 cut-off events. [2023-08-25 19:21:30,069 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 19:21:30,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 320 events. 15/320 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 725 event pairs, 0 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2023-08-25 19:21:30,078 INFO L82 GeneralOperation]: Start removeDead. Operand has 318 places, 323 transitions, 670 flow [2023-08-25 19:21:30,088 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 304 places, 309 transitions, 636 flow [2023-08-25 19:21:30,090 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 19:21:30,101 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 304 places, 309 transitions, 636 flow [2023-08-25 19:21:30,104 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 304 places, 309 transitions, 636 flow [2023-08-25 19:21:30,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 304 places, 309 transitions, 636 flow [2023-08-25 19:21:30,154 INFO L124 PetriNetUnfolderBase]: 15/309 cut-off events. [2023-08-25 19:21:30,155 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 19:21:30,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 309 events. 15/309 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 724 event pairs, 0 based on Foata normal form. 0/264 useless extension candidates. Maximal degree in co-relation 202. Up to 2 conditions per place. [2023-08-25 19:21:30,184 INFO L119 LiptonReduction]: Number of co-enabled transitions 25272 [2023-08-25 19:21:35,992 INFO L134 LiptonReduction]: Checked pairs total: 78955 [2023-08-25 19:21:35,993 INFO L136 LiptonReduction]: Total number of compositions: 315 [2023-08-25 19:21:36,002 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 19:21:36,006 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;@58b3f5d3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 19:21:36,006 INFO L358 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2023-08-25 19:21:36,007 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 19:21:36,007 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 19:21:36,007 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 19:21:36,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:36,008 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 19:21:36,008 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:36,011 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:36,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1210, now seen corresponding path program 1 times [2023-08-25 19:21:36,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:36,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085895376] [2023-08-25 19:21:36,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:36,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:36,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:36,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:36,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:36,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085895376] [2023-08-25 19:21:36,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085895376] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:36,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:36,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 19:21:36,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926363521] [2023-08-25 19:21:36,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:36,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 19:21:36,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:36,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 19:21:36,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 19:21:36,096 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 638 [2023-08-25 19:21:36,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 82 transitions, 182 flow. Second operand has 2 states, 2 states have (on average 309.5) internal successors, (619), 2 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:36,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:36,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 638 [2023-08-25 19:21:36,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:36,286 INFO L124 PetriNetUnfolderBase]: 1661/2652 cut-off events. [2023-08-25 19:21:36,286 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2023-08-25 19:21:36,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5050 conditions, 2652 events. 1661/2652 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 15814 event pairs, 1125 based on Foata normal form. 40/2024 useless extension candidates. Maximal degree in co-relation 4460. Up to 2265 conditions per place. [2023-08-25 19:21:36,302 INFO L140 encePairwiseOnDemand]: 624/638 looper letters, 34 selfloop transitions, 0 changer transitions 0/68 dead transitions. [2023-08-25 19:21:36,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 68 transitions, 222 flow [2023-08-25 19:21:36,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 19:21:36,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 19:21:36,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 666 transitions. [2023-08-25 19:21:36,362 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5219435736677116 [2023-08-25 19:21:36,362 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 666 transitions. [2023-08-25 19:21:36,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 666 transitions. [2023-08-25 19:21:36,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:36,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 666 transitions. [2023-08-25 19:21:36,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 333.0) internal successors, (666), 2 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:36,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 638.0) internal successors, (1914), 3 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:36,379 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 638.0) internal successors, (1914), 3 states have internal predecessors, (1914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:36,380 INFO L175 Difference]: Start difference. First operand has 85 places, 82 transitions, 182 flow. Second operand 2 states and 666 transitions. [2023-08-25 19:21:36,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 68 transitions, 222 flow [2023-08-25 19:21:36,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 68 transitions, 210 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-25 19:21:36,388 INFO L231 Difference]: Finished difference. Result has 67 places, 68 transitions, 142 flow [2023-08-25 19:21:36,390 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=142, PETRI_PLACES=67, PETRI_TRANSITIONS=68} [2023-08-25 19:21:36,392 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, -18 predicate places. [2023-08-25 19:21:36,392 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 68 transitions, 142 flow [2023-08-25 19:21:36,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 309.5) internal successors, (619), 2 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:36,393 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:36,393 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-08-25 19:21:36,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 19:21:36,393 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:36,399 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:36,400 INFO L85 PathProgramCache]: Analyzing trace with hash 37264226, now seen corresponding path program 1 times [2023-08-25 19:21:36,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:36,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691119092] [2023-08-25 19:21:36,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:36,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:36,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:36,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:36,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691119092] [2023-08-25 19:21:36,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691119092] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:36,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:36,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:21:36,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750067806] [2023-08-25 19:21:36,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:36,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:21:36,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:36,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:21:36,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:21:36,490 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 638 [2023-08-25 19:21:36,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 68 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 301.3333333333333) internal successors, (904), 3 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:36,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:36,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 638 [2023-08-25 19:21:36,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:36,736 INFO L124 PetriNetUnfolderBase]: 2421/4346 cut-off events. [2023-08-25 19:21:36,736 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-08-25 19:21:36,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7712 conditions, 4346 events. 2421/4346 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 30338 event pairs, 1191 based on Foata normal form. 0/3518 useless extension candidates. Maximal degree in co-relation 7709. Up to 3256 conditions per place. [2023-08-25 19:21:36,757 INFO L140 encePairwiseOnDemand]: 634/638 looper letters, 49 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2023-08-25 19:21:36,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 80 transitions, 270 flow [2023-08-25 19:21:36,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:21:36,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:21:36,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 953 transitions. [2023-08-25 19:21:36,761 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49791013584117033 [2023-08-25 19:21:36,761 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 953 transitions. [2023-08-25 19:21:36,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 953 transitions. [2023-08-25 19:21:36,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:36,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 953 transitions. [2023-08-25 19:21:36,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 317.6666666666667) internal successors, (953), 3 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:36,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:36,767 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:36,767 INFO L175 Difference]: Start difference. First operand has 67 places, 68 transitions, 142 flow. Second operand 3 states and 953 transitions. [2023-08-25 19:21:36,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 80 transitions, 270 flow [2023-08-25 19:21:36,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 80 transitions, 270 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:21:36,769 INFO L231 Difference]: Finished difference. Result has 68 places, 68 transitions, 152 flow [2023-08-25 19:21:36,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=68, PETRI_TRANSITIONS=68} [2023-08-25 19:21:36,770 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, -17 predicate places. [2023-08-25 19:21:36,771 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 68 transitions, 152 flow [2023-08-25 19:21:36,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 301.3333333333333) internal successors, (904), 3 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:36,771 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:36,771 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 19:21:36,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 19:21:36,772 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:36,775 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:36,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1451214686, now seen corresponding path program 1 times [2023-08-25 19:21:36,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:36,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006079987] [2023-08-25 19:21:36,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:36,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:36,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:36,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:36,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006079987] [2023-08-25 19:21:36,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006079987] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:36,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:36,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:21:36,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697177431] [2023-08-25 19:21:36,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:36,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:21:36,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:36,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:21:36,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:21:36,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 638 [2023-08-25 19:21:36,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 68 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:36,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:36,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 638 [2023-08-25 19:21:36,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:37,080 INFO L124 PetriNetUnfolderBase]: 2061/3888 cut-off events. [2023-08-25 19:21:37,080 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-08-25 19:21:37,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6776 conditions, 3888 events. 2061/3888 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 28848 event pairs, 334 based on Foata normal form. 0/3056 useless extension candidates. Maximal degree in co-relation 6772. Up to 2784 conditions per place. [2023-08-25 19:21:37,097 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 47 selfloop transitions, 3 changer transitions 0/80 dead transitions. [2023-08-25 19:21:37,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 80 transitions, 278 flow [2023-08-25 19:21:37,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:21:37,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:21:37,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 944 transitions. [2023-08-25 19:21:37,099 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49320794148380354 [2023-08-25 19:21:37,099 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 944 transitions. [2023-08-25 19:21:37,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 944 transitions. [2023-08-25 19:21:37,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:37,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 944 transitions. [2023-08-25 19:21:37,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 314.6666666666667) internal successors, (944), 3 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:37,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:37,104 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:37,104 INFO L175 Difference]: Start difference. First operand has 68 places, 68 transitions, 152 flow. Second operand 3 states and 944 transitions. [2023-08-25 19:21:37,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 80 transitions, 278 flow [2023-08-25 19:21:37,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 80 transitions, 278 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:21:37,106 INFO L231 Difference]: Finished difference. Result has 68 places, 68 transitions, 167 flow [2023-08-25 19:21:37,106 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=167, PETRI_PLACES=68, PETRI_TRANSITIONS=68} [2023-08-25 19:21:37,108 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, -17 predicate places. [2023-08-25 19:21:37,108 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 68 transitions, 167 flow [2023-08-25 19:21:37,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:37,109 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:37,109 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:37,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 19:21:37,112 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:37,112 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:37,112 INFO L85 PathProgramCache]: Analyzing trace with hash 2037994846, now seen corresponding path program 1 times [2023-08-25 19:21:37,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:37,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139402294] [2023-08-25 19:21:37,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:37,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:37,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:37,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:37,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:37,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139402294] [2023-08-25 19:21:37,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139402294] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:37,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:37,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:21:37,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714860550] [2023-08-25 19:21:37,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:37,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:21:37,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:37,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:21:37,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:21:37,148 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 638 [2023-08-25 19:21:37,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 68 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 302.6666666666667) internal successors, (908), 3 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:37,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:37,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 638 [2023-08-25 19:21:37,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:37,334 INFO L124 PetriNetUnfolderBase]: 2091/3271 cut-off events. [2023-08-25 19:21:37,334 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-08-25 19:21:37,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6432 conditions, 3271 events. 2091/3271 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 19580 event pairs, 963 based on Foata normal form. 0/2397 useless extension candidates. Maximal degree in co-relation 6427. Up to 2251 conditions per place. [2023-08-25 19:21:37,349 INFO L140 encePairwiseOnDemand]: 633/638 looper letters, 51 selfloop transitions, 4 changer transitions 0/86 dead transitions. [2023-08-25 19:21:37,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 86 transitions, 315 flow [2023-08-25 19:21:37,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:21:37,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:21:37,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 957 transitions. [2023-08-25 19:21:37,351 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-08-25 19:21:37,351 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 957 transitions. [2023-08-25 19:21:37,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 957 transitions. [2023-08-25 19:21:37,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:37,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 957 transitions. [2023-08-25 19:21:37,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.0) internal successors, (957), 3 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:37,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:37,356 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:37,356 INFO L175 Difference]: Start difference. First operand has 68 places, 68 transitions, 167 flow. Second operand 3 states and 957 transitions. [2023-08-25 19:21:37,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 86 transitions, 315 flow [2023-08-25 19:21:37,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 86 transitions, 315 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:21:37,358 INFO L231 Difference]: Finished difference. Result has 69 places, 67 transitions, 173 flow [2023-08-25 19:21:37,358 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=69, PETRI_TRANSITIONS=67} [2023-08-25 19:21:37,358 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, -16 predicate places. [2023-08-25 19:21:37,359 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 67 transitions, 173 flow [2023-08-25 19:21:37,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 302.6666666666667) internal successors, (908), 3 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:37,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:37,359 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:37,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 19:21:37,359 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:37,360 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:37,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1246744625, now seen corresponding path program 1 times [2023-08-25 19:21:37,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:37,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164860970] [2023-08-25 19:21:37,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:37,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:37,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:37,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:37,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164860970] [2023-08-25 19:21:37,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164860970] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:37,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:37,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:21:37,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893386515] [2023-08-25 19:21:37,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:37,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:21:37,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:37,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:21:37,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:21:37,381 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 638 [2023-08-25 19:21:37,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 67 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 302.0) internal successors, (906), 3 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:37,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:37,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 638 [2023-08-25 19:21:37,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:37,773 INFO L124 PetriNetUnfolderBase]: 4410/6731 cut-off events. [2023-08-25 19:21:37,773 INFO L125 PetriNetUnfolderBase]: For 775/775 co-relation queries the response was YES. [2023-08-25 19:21:37,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13937 conditions, 6731 events. 4410/6731 cut-off events. For 775/775 co-relation queries the response was YES. Maximal size of possible extension queue 389. Compared 42474 event pairs, 1188 based on Foata normal form. 0/5639 useless extension candidates. Maximal degree in co-relation 13931. Up to 3430 conditions per place. [2023-08-25 19:21:37,801 INFO L140 encePairwiseOnDemand]: 634/638 looper letters, 72 selfloop transitions, 2 changer transitions 0/99 dead transitions. [2023-08-25 19:21:37,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 99 transitions, 406 flow [2023-08-25 19:21:37,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:21:37,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:21:37,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 972 transitions. [2023-08-25 19:21:37,803 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5078369905956113 [2023-08-25 19:21:37,803 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 972 transitions. [2023-08-25 19:21:37,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 972 transitions. [2023-08-25 19:21:37,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:37,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 972 transitions. [2023-08-25 19:21:37,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 324.0) internal successors, (972), 3 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:37,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:37,808 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:37,808 INFO L175 Difference]: Start difference. First operand has 69 places, 67 transitions, 173 flow. Second operand 3 states and 972 transitions. [2023-08-25 19:21:37,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 99 transitions, 406 flow [2023-08-25 19:21:37,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 99 transitions, 392 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:21:37,819 INFO L231 Difference]: Finished difference. Result has 68 places, 67 transitions, 175 flow [2023-08-25 19:21:37,819 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=175, PETRI_PLACES=68, PETRI_TRANSITIONS=67} [2023-08-25 19:21:37,820 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, -17 predicate places. [2023-08-25 19:21:37,820 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 67 transitions, 175 flow [2023-08-25 19:21:37,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 302.0) internal successors, (906), 3 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:37,821 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:37,821 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:37,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 19:21:37,821 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:37,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:37,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1961271253, now seen corresponding path program 1 times [2023-08-25 19:21:37,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:37,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131981100] [2023-08-25 19:21:37,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:37,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:37,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:37,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:37,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:37,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131981100] [2023-08-25 19:21:37,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131981100] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:37,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:37,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:21:37,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973819601] [2023-08-25 19:21:37,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:37,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:21:37,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:37,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:21:37,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:21:37,841 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 638 [2023-08-25 19:21:37,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 67 transitions, 175 flow. Second operand has 3 states, 3 states have (on average 296.3333333333333) internal successors, (889), 3 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:37,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:37,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 638 [2023-08-25 19:21:37,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:38,244 INFO L124 PetriNetUnfolderBase]: 5491/8808 cut-off events. [2023-08-25 19:21:38,244 INFO L125 PetriNetUnfolderBase]: For 368/368 co-relation queries the response was YES. [2023-08-25 19:21:38,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17416 conditions, 8808 events. 5491/8808 cut-off events. For 368/368 co-relation queries the response was YES. Maximal size of possible extension queue 476. Compared 60059 event pairs, 985 based on Foata normal form. 0/7149 useless extension candidates. Maximal degree in co-relation 17410. Up to 6618 conditions per place. [2023-08-25 19:21:38,276 INFO L140 encePairwiseOnDemand]: 630/638 looper letters, 59 selfloop transitions, 4 changer transitions 0/85 dead transitions. [2023-08-25 19:21:38,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 85 transitions, 349 flow [2023-08-25 19:21:38,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:21:38,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:21:38,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 945 transitions. [2023-08-25 19:21:38,278 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.493730407523511 [2023-08-25 19:21:38,278 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 945 transitions. [2023-08-25 19:21:38,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 945 transitions. [2023-08-25 19:21:38,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:38,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 945 transitions. [2023-08-25 19:21:38,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:38,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:38,283 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:38,283 INFO L175 Difference]: Start difference. First operand has 68 places, 67 transitions, 175 flow. Second operand 3 states and 945 transitions. [2023-08-25 19:21:38,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 85 transitions, 349 flow [2023-08-25 19:21:38,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 85 transitions, 349 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:21:38,285 INFO L231 Difference]: Finished difference. Result has 67 places, 67 transitions, 195 flow [2023-08-25 19:21:38,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=195, PETRI_PLACES=67, PETRI_TRANSITIONS=67} [2023-08-25 19:21:38,285 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, -18 predicate places. [2023-08-25 19:21:38,286 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 67 transitions, 195 flow [2023-08-25 19:21:38,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 296.3333333333333) internal successors, (889), 3 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:38,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:38,286 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:38,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 19:21:38,286 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:38,287 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:38,287 INFO L85 PathProgramCache]: Analyzing trace with hash 669846991, now seen corresponding path program 1 times [2023-08-25 19:21:38,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:38,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897382178] [2023-08-25 19:21:38,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:38,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:38,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:38,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:38,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897382178] [2023-08-25 19:21:38,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897382178] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:38,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:38,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:21:38,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768010609] [2023-08-25 19:21:38,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:38,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:21:38,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:38,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:21:38,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:21:38,306 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 638 [2023-08-25 19:21:38,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 67 transitions, 195 flow. Second operand has 3 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:38,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:38,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 638 [2023-08-25 19:21:38,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:38,588 INFO L124 PetriNetUnfolderBase]: 3454/5272 cut-off events. [2023-08-25 19:21:38,588 INFO L125 PetriNetUnfolderBase]: For 176/176 co-relation queries the response was YES. [2023-08-25 19:21:38,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10858 conditions, 5272 events. 3454/5272 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 32494 event pairs, 1795 based on Foata normal form. 0/3984 useless extension candidates. Maximal degree in co-relation 10851. Up to 3869 conditions per place. [2023-08-25 19:21:38,607 INFO L140 encePairwiseOnDemand]: 633/638 looper letters, 51 selfloop transitions, 4 changer transitions 0/85 dead transitions. [2023-08-25 19:21:38,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 85 transitions, 347 flow [2023-08-25 19:21:38,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:21:38,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:21:38,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 957 transitions. [2023-08-25 19:21:38,609 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2023-08-25 19:21:38,609 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 957 transitions. [2023-08-25 19:21:38,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 957 transitions. [2023-08-25 19:21:38,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:38,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 957 transitions. [2023-08-25 19:21:38,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.0) internal successors, (957), 3 states have internal predecessors, (957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:38,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:38,614 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:38,614 INFO L175 Difference]: Start difference. First operand has 67 places, 67 transitions, 195 flow. Second operand 3 states and 957 transitions. [2023-08-25 19:21:38,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 85 transitions, 347 flow [2023-08-25 19:21:38,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 85 transitions, 347 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:21:38,616 INFO L231 Difference]: Finished difference. Result has 68 places, 66 transitions, 201 flow [2023-08-25 19:21:38,616 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=201, PETRI_PLACES=68, PETRI_TRANSITIONS=66} [2023-08-25 19:21:38,617 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, -17 predicate places. [2023-08-25 19:21:38,617 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 66 transitions, 201 flow [2023-08-25 19:21:38,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 303.3333333333333) internal successors, (910), 3 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:38,619 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:38,619 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:38,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 19:21:38,620 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:38,620 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:38,620 INFO L85 PathProgramCache]: Analyzing trace with hash 174315219, now seen corresponding path program 1 times [2023-08-25 19:21:38,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:38,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889242299] [2023-08-25 19:21:38,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:38,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:38,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:38,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:38,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889242299] [2023-08-25 19:21:38,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889242299] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:38,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:38,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:21:38,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103825558] [2023-08-25 19:21:38,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:38,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:21:38,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:38,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:21:38,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:21:38,653 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 638 [2023-08-25 19:21:38,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 66 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 302.0) internal successors, (906), 3 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:38,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:38,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 638 [2023-08-25 19:21:38,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:39,032 INFO L124 PetriNetUnfolderBase]: 4926/7657 cut-off events. [2023-08-25 19:21:39,032 INFO L125 PetriNetUnfolderBase]: For 1029/1029 co-relation queries the response was YES. [2023-08-25 19:21:39,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16360 conditions, 7657 events. 4926/7657 cut-off events. For 1029/1029 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 49855 event pairs, 1535 based on Foata normal form. 0/6070 useless extension candidates. Maximal degree in co-relation 16352. Up to 3650 conditions per place. [2023-08-25 19:21:39,059 INFO L140 encePairwiseOnDemand]: 634/638 looper letters, 67 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2023-08-25 19:21:39,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 95 transitions, 412 flow [2023-08-25 19:21:39,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:21:39,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:21:39,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 969 transitions. [2023-08-25 19:21:39,062 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5062695924764891 [2023-08-25 19:21:39,062 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 969 transitions. [2023-08-25 19:21:39,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 969 transitions. [2023-08-25 19:21:39,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:39,062 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 969 transitions. [2023-08-25 19:21:39,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 323.0) internal successors, (969), 3 states have internal predecessors, (969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:39,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:39,066 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:39,066 INFO L175 Difference]: Start difference. First operand has 68 places, 66 transitions, 201 flow. Second operand 3 states and 969 transitions. [2023-08-25 19:21:39,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 95 transitions, 412 flow [2023-08-25 19:21:39,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 95 transitions, 398 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 19:21:39,083 INFO L231 Difference]: Finished difference. Result has 67 places, 66 transitions, 203 flow [2023-08-25 19:21:39,083 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=189, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=203, PETRI_PLACES=67, PETRI_TRANSITIONS=66} [2023-08-25 19:21:39,085 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, -18 predicate places. [2023-08-25 19:21:39,085 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 66 transitions, 203 flow [2023-08-25 19:21:39,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 302.0) internal successors, (906), 3 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:39,086 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:39,086 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:39,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 19:21:39,086 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:39,086 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:39,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1610027496, now seen corresponding path program 1 times [2023-08-25 19:21:39,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:39,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845786995] [2023-08-25 19:21:39,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:39,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:39,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:39,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:39,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845786995] [2023-08-25 19:21:39,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845786995] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:39,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:39,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:21:39,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896698476] [2023-08-25 19:21:39,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:39,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:21:39,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:39,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:21:39,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:21:39,120 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 638 [2023-08-25 19:21:39,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 66 transitions, 203 flow. Second operand has 3 states, 3 states have (on average 302.6666666666667) internal successors, (908), 3 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:39,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:39,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 638 [2023-08-25 19:21:39,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:39,559 INFO L124 PetriNetUnfolderBase]: 5527/8315 cut-off events. [2023-08-25 19:21:39,559 INFO L125 PetriNetUnfolderBase]: For 587/587 co-relation queries the response was YES. [2023-08-25 19:21:39,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17635 conditions, 8315 events. 5527/8315 cut-off events. For 587/587 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 51981 event pairs, 1968 based on Foata normal form. 0/6582 useless extension candidates. Maximal degree in co-relation 17627. Up to 4019 conditions per place. [2023-08-25 19:21:39,590 INFO L140 encePairwiseOnDemand]: 634/638 looper letters, 70 selfloop transitions, 2 changer transitions 0/97 dead transitions. [2023-08-25 19:21:39,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 97 transitions, 428 flow [2023-08-25 19:21:39,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:21:39,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:21:39,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 968 transitions. [2023-08-25 19:21:39,592 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5057471264367817 [2023-08-25 19:21:39,593 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 968 transitions. [2023-08-25 19:21:39,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 968 transitions. [2023-08-25 19:21:39,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:39,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 968 transitions. [2023-08-25 19:21:39,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 322.6666666666667) internal successors, (968), 3 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 19:21:39,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:39,597 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:39,597 INFO L175 Difference]: Start difference. First operand has 67 places, 66 transitions, 203 flow. Second operand 3 states and 968 transitions. [2023-08-25 19:21:39,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 97 transitions, 428 flow [2023-08-25 19:21:39,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 97 transitions, 428 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:21:39,598 INFO L231 Difference]: Finished difference. Result has 68 places, 66 transitions, 213 flow [2023-08-25 19:21:39,598 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=213, PETRI_PLACES=68, PETRI_TRANSITIONS=66} [2023-08-25 19:21:39,599 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, -17 predicate places. [2023-08-25 19:21:39,599 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 66 transitions, 213 flow [2023-08-25 19:21:39,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 302.6666666666667) internal successors, (908), 3 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:39,599 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:39,599 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 19:21:39,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 19:21:39,600 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:39,600 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:39,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1663126363, now seen corresponding path program 1 times [2023-08-25 19:21:39,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:39,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552754306] [2023-08-25 19:21:39,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:39,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:39,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:39,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:39,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552754306] [2023-08-25 19:21:39,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552754306] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:39,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:39,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:21:39,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180349623] [2023-08-25 19:21:39,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:39,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:21:39,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:39,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:21:39,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:21:39,633 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 638 [2023-08-25 19:21:39,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 66 transitions, 213 flow. Second operand has 3 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:39,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:39,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 638 [2023-08-25 19:21:39,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:40,076 INFO L124 PetriNetUnfolderBase]: 5840/9298 cut-off events. [2023-08-25 19:21:40,076 INFO L125 PetriNetUnfolderBase]: For 642/642 co-relation queries the response was YES. [2023-08-25 19:21:40,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19791 conditions, 9298 events. 5840/9298 cut-off events. For 642/642 co-relation queries the response was YES. Maximal size of possible extension queue 516. Compared 65639 event pairs, 3420 based on Foata normal form. 0/7480 useless extension candidates. Maximal degree in co-relation 19782. Up to 4842 conditions per place. [2023-08-25 19:21:40,110 INFO L140 encePairwiseOnDemand]: 634/638 looper letters, 64 selfloop transitions, 3 changer transitions 0/96 dead transitions. [2023-08-25 19:21:40,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 96 transitions, 422 flow [2023-08-25 19:21:40,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:21:40,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:21:40,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 973 transitions. [2023-08-25 19:21:40,113 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5083594566353187 [2023-08-25 19:21:40,113 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 973 transitions. [2023-08-25 19:21:40,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 973 transitions. [2023-08-25 19:21:40,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:40,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 973 transitions. [2023-08-25 19:21:40,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 324.3333333333333) internal successors, (973), 3 states have internal predecessors, (973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:40,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:40,117 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:40,117 INFO L175 Difference]: Start difference. First operand has 68 places, 66 transitions, 213 flow. Second operand 3 states and 973 transitions. [2023-08-25 19:21:40,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 96 transitions, 422 flow [2023-08-25 19:21:40,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 96 transitions, 422 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:21:40,119 INFO L231 Difference]: Finished difference. Result has 72 places, 69 transitions, 248 flow [2023-08-25 19:21:40,119 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=72, PETRI_TRANSITIONS=69} [2023-08-25 19:21:40,119 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, -13 predicate places. [2023-08-25 19:21:40,119 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 69 transitions, 248 flow [2023-08-25 19:21:40,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:40,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:40,120 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 19:21:40,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 19:21:40,120 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:40,120 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:40,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1538336725, now seen corresponding path program 1 times [2023-08-25 19:21:40,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:40,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22109064] [2023-08-25 19:21:40,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:40,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:40,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:40,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:40,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22109064] [2023-08-25 19:21:40,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22109064] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:40,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:40,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:21:40,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88162163] [2023-08-25 19:21:40,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:40,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:21:40,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:40,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:21:40,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:21:40,146 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 638 [2023-08-25 19:21:40,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 69 transitions, 248 flow. Second operand has 3 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:40,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:40,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 638 [2023-08-25 19:21:40,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:40,523 INFO L124 PetriNetUnfolderBase]: 4204/7176 cut-off events. [2023-08-25 19:21:40,523 INFO L125 PetriNetUnfolderBase]: For 2729/2729 co-relation queries the response was YES. [2023-08-25 19:21:40,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15947 conditions, 7176 events. 4204/7176 cut-off events. For 2729/2729 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 52445 event pairs, 2434 based on Foata normal form. 274/6450 useless extension candidates. Maximal degree in co-relation 15936. Up to 4681 conditions per place. [2023-08-25 19:21:40,550 INFO L140 encePairwiseOnDemand]: 634/638 looper letters, 60 selfloop transitions, 3 changer transitions 0/92 dead transitions. [2023-08-25 19:21:40,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 92 transitions, 439 flow [2023-08-25 19:21:40,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:21:40,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:21:40,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 967 transitions. [2023-08-25 19:21:40,552 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5052246603970741 [2023-08-25 19:21:40,552 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 967 transitions. [2023-08-25 19:21:40,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 967 transitions. [2023-08-25 19:21:40,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:40,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 967 transitions. [2023-08-25 19:21:40,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 322.3333333333333) internal successors, (967), 3 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 19:21:40,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:40,557 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:40,557 INFO L175 Difference]: Start difference. First operand has 72 places, 69 transitions, 248 flow. Second operand 3 states and 967 transitions. [2023-08-25 19:21:40,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 92 transitions, 439 flow [2023-08-25 19:21:40,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 92 transitions, 436 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:21:40,561 INFO L231 Difference]: Finished difference. Result has 75 places, 72 transitions, 286 flow [2023-08-25 19:21:40,561 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=75, PETRI_TRANSITIONS=72} [2023-08-25 19:21:40,561 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, -10 predicate places. [2023-08-25 19:21:40,561 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 72 transitions, 286 flow [2023-08-25 19:21:40,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:40,562 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:40,562 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 19:21:40,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 19:21:40,562 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:40,562 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:40,562 INFO L85 PathProgramCache]: Analyzing trace with hash -130628941, now seen corresponding path program 1 times [2023-08-25 19:21:40,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:40,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37067071] [2023-08-25 19:21:40,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:40,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:40,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:40,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:40,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:40,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37067071] [2023-08-25 19:21:40,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37067071] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:40,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:40,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:21:40,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227725587] [2023-08-25 19:21:40,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:40,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:21:40,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:40,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:21:40,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:21:40,664 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 638 [2023-08-25 19:21:40,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 72 transitions, 286 flow. Second operand has 4 states, 4 states have (on average 304.5) internal successors, (1218), 4 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:40,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:40,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 638 [2023-08-25 19:21:40,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:41,171 INFO L124 PetriNetUnfolderBase]: 4916/7935 cut-off events. [2023-08-25 19:21:41,172 INFO L125 PetriNetUnfolderBase]: For 3132/3132 co-relation queries the response was YES. [2023-08-25 19:21:41,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18239 conditions, 7935 events. 4916/7935 cut-off events. For 3132/3132 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 56441 event pairs, 1346 based on Foata normal form. 5/6922 useless extension candidates. Maximal degree in co-relation 18227. Up to 2627 conditions per place. [2023-08-25 19:21:41,222 INFO L140 encePairwiseOnDemand]: 630/638 looper letters, 91 selfloop transitions, 7 changer transitions 15/142 dead transitions. [2023-08-25 19:21:41,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 142 transitions, 725 flow [2023-08-25 19:21:41,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:21:41,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:21:41,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1597 transitions. [2023-08-25 19:21:41,225 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5006269592476489 [2023-08-25 19:21:41,225 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1597 transitions. [2023-08-25 19:21:41,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1597 transitions. [2023-08-25 19:21:41,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:41,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1597 transitions. [2023-08-25 19:21:41,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 319.4) internal successors, (1597), 5 states have internal predecessors, (1597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:41,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:41,231 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:41,231 INFO L175 Difference]: Start difference. First operand has 75 places, 72 transitions, 286 flow. Second operand 5 states and 1597 transitions. [2023-08-25 19:21:41,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 142 transitions, 725 flow [2023-08-25 19:21:41,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 142 transitions, 706 flow, removed 7 selfloop flow, removed 1 redundant places. [2023-08-25 19:21:41,235 INFO L231 Difference]: Finished difference. Result has 79 places, 74 transitions, 304 flow [2023-08-25 19:21:41,235 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=304, PETRI_PLACES=79, PETRI_TRANSITIONS=74} [2023-08-25 19:21:41,235 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, -6 predicate places. [2023-08-25 19:21:41,235 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 74 transitions, 304 flow [2023-08-25 19:21:41,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 304.5) internal successors, (1218), 4 states have internal predecessors, (1218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:41,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:41,236 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 19:21:41,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 19:21:41,236 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:41,236 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:41,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1956363117, now seen corresponding path program 1 times [2023-08-25 19:21:41,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:41,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857363275] [2023-08-25 19:21:41,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:41,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:41,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:41,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:41,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:41,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857363275] [2023-08-25 19:21:41,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857363275] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:41,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:41,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 19:21:41,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770776959] [2023-08-25 19:21:41,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:41,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:21:41,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:41,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:21:41,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:21:41,282 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 638 [2023-08-25 19:21:41,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 74 transitions, 304 flow. Second operand has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:41,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:41,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 638 [2023-08-25 19:21:41,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:41,799 INFO L124 PetriNetUnfolderBase]: 4421/7369 cut-off events. [2023-08-25 19:21:41,799 INFO L125 PetriNetUnfolderBase]: For 3304/3328 co-relation queries the response was YES. [2023-08-25 19:21:41,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17876 conditions, 7369 events. 4421/7369 cut-off events. For 3304/3328 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 54104 event pairs, 2931 based on Foata normal form. 5/6631 useless extension candidates. Maximal degree in co-relation 17863. Up to 5520 conditions per place. [2023-08-25 19:21:41,832 INFO L140 encePairwiseOnDemand]: 636/638 looper letters, 59 selfloop transitions, 1 changer transitions 12/101 dead transitions. [2023-08-25 19:21:41,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 101 transitions, 551 flow [2023-08-25 19:21:41,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:21:41,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:21:41,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 976 transitions. [2023-08-25 19:21:41,834 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.509926854754441 [2023-08-25 19:21:41,834 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 976 transitions. [2023-08-25 19:21:41,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 976 transitions. [2023-08-25 19:21:41,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:41,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 976 transitions. [2023-08-25 19:21:41,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 325.3333333333333) internal successors, (976), 3 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:41,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:41,839 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:41,839 INFO L175 Difference]: Start difference. First operand has 79 places, 74 transitions, 304 flow. Second operand 3 states and 976 transitions. [2023-08-25 19:21:41,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 101 transitions, 551 flow [2023-08-25 19:21:41,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 101 transitions, 551 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:21:41,842 INFO L231 Difference]: Finished difference. Result has 82 places, 74 transitions, 309 flow [2023-08-25 19:21:41,843 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=309, PETRI_PLACES=82, PETRI_TRANSITIONS=74} [2023-08-25 19:21:41,843 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, -3 predicate places. [2023-08-25 19:21:41,843 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 74 transitions, 309 flow [2023-08-25 19:21:41,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:41,843 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:41,844 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 19:21:41,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 19:21:41,844 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:41,844 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:41,844 INFO L85 PathProgramCache]: Analyzing trace with hash -708272415, now seen corresponding path program 2 times [2023-08-25 19:21:41,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:41,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456858138] [2023-08-25 19:21:41,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:41,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:41,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:41,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:41,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456858138] [2023-08-25 19:21:41,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456858138] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:41,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:41,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:21:41,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232664437] [2023-08-25 19:21:41,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:41,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:21:41,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:41,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:21:41,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:21:41,920 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 638 [2023-08-25 19:21:41,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 74 transitions, 309 flow. Second operand has 4 states, 4 states have (on average 300.5) internal successors, (1202), 4 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:41,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:41,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 638 [2023-08-25 19:21:41,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:42,426 INFO L124 PetriNetUnfolderBase]: 4463/7370 cut-off events. [2023-08-25 19:21:42,426 INFO L125 PetriNetUnfolderBase]: For 4023/4047 co-relation queries the response was YES. [2023-08-25 19:21:42,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18115 conditions, 7370 events. 4463/7370 cut-off events. For 4023/4047 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 51873 event pairs, 885 based on Foata normal form. 3/6682 useless extension candidates. Maximal degree in co-relation 18100. Up to 4653 conditions per place. [2023-08-25 19:21:42,450 INFO L140 encePairwiseOnDemand]: 630/638 looper letters, 88 selfloop transitions, 8 changer transitions 11/136 dead transitions. [2023-08-25 19:21:42,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 136 transitions, 755 flow [2023-08-25 19:21:42,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:21:42,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:21:42,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1562 transitions. [2023-08-25 19:21:42,453 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4896551724137931 [2023-08-25 19:21:42,453 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1562 transitions. [2023-08-25 19:21:42,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1562 transitions. [2023-08-25 19:21:42,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:42,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1562 transitions. [2023-08-25 19:21:42,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 312.4) internal successors, (1562), 5 states have internal predecessors, (1562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:42,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:42,459 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:42,459 INFO L175 Difference]: Start difference. First operand has 82 places, 74 transitions, 309 flow. Second operand 5 states and 1562 transitions. [2023-08-25 19:21:42,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 136 transitions, 755 flow [2023-08-25 19:21:42,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 136 transitions, 752 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:21:42,463 INFO L231 Difference]: Finished difference. Result has 88 places, 80 transitions, 361 flow [2023-08-25 19:21:42,463 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=361, PETRI_PLACES=88, PETRI_TRANSITIONS=80} [2023-08-25 19:21:42,463 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 3 predicate places. [2023-08-25 19:21:42,463 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 80 transitions, 361 flow [2023-08-25 19:21:42,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 300.5) internal successors, (1202), 4 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:42,464 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:42,464 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 19:21:42,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 19:21:42,464 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:42,464 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:42,464 INFO L85 PathProgramCache]: Analyzing trace with hash -367611619, now seen corresponding path program 3 times [2023-08-25 19:21:42,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:42,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682639611] [2023-08-25 19:21:42,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:42,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:42,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:42,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:42,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682639611] [2023-08-25 19:21:42,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682639611] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:42,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:42,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:21:42,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990316321] [2023-08-25 19:21:42,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:42,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:21:42,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:42,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:21:42,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:21:42,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 295 out of 638 [2023-08-25 19:21:42,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 80 transitions, 361 flow. Second operand has 4 states, 4 states have (on average 300.5) internal successors, (1202), 4 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:42,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:42,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 295 of 638 [2023-08-25 19:21:42,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:43,000 INFO L124 PetriNetUnfolderBase]: 4393/7246 cut-off events. [2023-08-25 19:21:43,000 INFO L125 PetriNetUnfolderBase]: For 5182/5696 co-relation queries the response was YES. [2023-08-25 19:21:43,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19835 conditions, 7246 events. 4393/7246 cut-off events. For 5182/5696 co-relation queries the response was YES. Maximal size of possible extension queue 408. Compared 50855 event pairs, 927 based on Foata normal form. 99/6844 useless extension candidates. Maximal degree in co-relation 19817. Up to 4604 conditions per place. [2023-08-25 19:21:43,039 INFO L140 encePairwiseOnDemand]: 630/638 looper letters, 87 selfloop transitions, 8 changer transitions 18/142 dead transitions. [2023-08-25 19:21:43,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 142 transitions, 846 flow [2023-08-25 19:21:43,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 19:21:43,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 19:21:43,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1565 transitions. [2023-08-25 19:21:43,042 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49059561128526646 [2023-08-25 19:21:43,042 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1565 transitions. [2023-08-25 19:21:43,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1565 transitions. [2023-08-25 19:21:43,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:43,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1565 transitions. [2023-08-25 19:21:43,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 313.0) internal successors, (1565), 5 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:43,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:43,048 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 638.0) internal successors, (3828), 6 states have internal predecessors, (3828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:43,048 INFO L175 Difference]: Start difference. First operand has 88 places, 80 transitions, 361 flow. Second operand 5 states and 1565 transitions. [2023-08-25 19:21:43,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 142 transitions, 846 flow [2023-08-25 19:21:43,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 142 transitions, 842 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-08-25 19:21:43,055 INFO L231 Difference]: Finished difference. Result has 92 places, 80 transitions, 381 flow [2023-08-25 19:21:43,055 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=381, PETRI_PLACES=92, PETRI_TRANSITIONS=80} [2023-08-25 19:21:43,056 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 7 predicate places. [2023-08-25 19:21:43,056 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 80 transitions, 381 flow [2023-08-25 19:21:43,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 300.5) internal successors, (1202), 4 states have internal predecessors, (1202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:43,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:43,056 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 19:21:43,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 19:21:43,056 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:43,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:43,057 INFO L85 PathProgramCache]: Analyzing trace with hash 509595375, now seen corresponding path program 1 times [2023-08-25 19:21:43,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:43,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743427027] [2023-08-25 19:21:43,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:43,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:43,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:43,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:43,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743427027] [2023-08-25 19:21:43,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743427027] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:43,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:43,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:21:43,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686187357] [2023-08-25 19:21:43,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:43,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:21:43,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:43,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:21:43,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:21:43,126 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 638 [2023-08-25 19:21:43,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 80 transitions, 381 flow. Second operand has 4 states, 4 states have (on average 303.75) internal successors, (1215), 4 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:43,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:43,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 638 [2023-08-25 19:21:43,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:43,616 INFO L124 PetriNetUnfolderBase]: 4312/8083 cut-off events. [2023-08-25 19:21:43,616 INFO L125 PetriNetUnfolderBase]: For 7420/7484 co-relation queries the response was YES. [2023-08-25 19:21:43,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22070 conditions, 8083 events. 4312/8083 cut-off events. For 7420/7484 co-relation queries the response was YES. Maximal size of possible extension queue 443. Compared 64835 event pairs, 1553 based on Foata normal form. 139/7849 useless extension candidates. Maximal degree in co-relation 22050. Up to 3454 conditions per place. [2023-08-25 19:21:43,648 INFO L140 encePairwiseOnDemand]: 632/638 looper letters, 83 selfloop transitions, 5 changer transitions 11/128 dead transitions. [2023-08-25 19:21:43,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 128 transitions, 785 flow [2023-08-25 19:21:43,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:21:43,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:21:43,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1267 transitions. [2023-08-25 19:21:43,651 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4964733542319749 [2023-08-25 19:21:43,651 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1267 transitions. [2023-08-25 19:21:43,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1267 transitions. [2023-08-25 19:21:43,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:43,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1267 transitions. [2023-08-25 19:21:43,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 316.75) internal successors, (1267), 4 states have internal predecessors, (1267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:43,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 638.0) internal successors, (3190), 5 states have internal predecessors, (3190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:43,655 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 638.0) internal successors, (3190), 5 states have internal predecessors, (3190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:43,655 INFO L175 Difference]: Start difference. First operand has 92 places, 80 transitions, 381 flow. Second operand 4 states and 1267 transitions. [2023-08-25 19:21:43,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 128 transitions, 785 flow [2023-08-25 19:21:43,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 128 transitions, 772 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-08-25 19:21:43,662 INFO L231 Difference]: Finished difference. Result has 95 places, 84 transitions, 428 flow [2023-08-25 19:21:43,662 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=428, PETRI_PLACES=95, PETRI_TRANSITIONS=84} [2023-08-25 19:21:43,663 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 10 predicate places. [2023-08-25 19:21:43,663 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 84 transitions, 428 flow [2023-08-25 19:21:43,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 303.75) internal successors, (1215), 4 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:43,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:43,663 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 19:21:43,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 19:21:43,663 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:43,664 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:43,664 INFO L85 PathProgramCache]: Analyzing trace with hash -288013015, now seen corresponding path program 2 times [2023-08-25 19:21:43,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:43,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907196309] [2023-08-25 19:21:43,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:43,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:43,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:43,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:43,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:43,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907196309] [2023-08-25 19:21:43,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907196309] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:43,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:43,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:21:43,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227510084] [2023-08-25 19:21:43,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:43,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 19:21:43,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:43,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 19:21:43,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 19:21:43,722 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 638 [2023-08-25 19:21:43,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 84 transitions, 428 flow. Second operand has 4 states, 4 states have (on average 303.75) internal successors, (1215), 4 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:43,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:43,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 638 [2023-08-25 19:21:43,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:44,199 INFO L124 PetriNetUnfolderBase]: 4254/7348 cut-off events. [2023-08-25 19:21:44,199 INFO L125 PetriNetUnfolderBase]: For 8229/8332 co-relation queries the response was YES. [2023-08-25 19:21:44,217 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21727 conditions, 7348 events. 4254/7348 cut-off events. For 8229/8332 co-relation queries the response was YES. Maximal size of possible extension queue 410. Compared 55177 event pairs, 2935 based on Foata normal form. 1/6761 useless extension candidates. Maximal degree in co-relation 21705. Up to 5792 conditions per place. [2023-08-25 19:21:44,226 INFO L140 encePairwiseOnDemand]: 635/638 looper letters, 57 selfloop transitions, 4 changer transitions 24/114 dead transitions. [2023-08-25 19:21:44,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 114 transitions, 705 flow [2023-08-25 19:21:44,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 19:21:44,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 19:21:44,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1255 transitions. [2023-08-25 19:21:44,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4917711598746082 [2023-08-25 19:21:44,228 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1255 transitions. [2023-08-25 19:21:44,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1255 transitions. [2023-08-25 19:21:44,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:44,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1255 transitions. [2023-08-25 19:21:44,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 313.75) internal successors, (1255), 4 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:44,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 638.0) internal successors, (3190), 5 states have internal predecessors, (3190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:44,232 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 638.0) internal successors, (3190), 5 states have internal predecessors, (3190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:44,233 INFO L175 Difference]: Start difference. First operand has 95 places, 84 transitions, 428 flow. Second operand 4 states and 1255 transitions. [2023-08-25 19:21:44,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 114 transitions, 705 flow [2023-08-25 19:21:44,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 114 transitions, 705 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 19:21:44,244 INFO L231 Difference]: Finished difference. Result has 100 places, 79 transitions, 414 flow [2023-08-25 19:21:44,245 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=414, PETRI_PLACES=100, PETRI_TRANSITIONS=79} [2023-08-25 19:21:44,245 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 15 predicate places. [2023-08-25 19:21:44,245 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 79 transitions, 414 flow [2023-08-25 19:21:44,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 303.75) internal successors, (1215), 4 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:44,245 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:44,245 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 19:21:44,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-08-25 19:21:44,246 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:44,246 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:44,246 INFO L85 PathProgramCache]: Analyzing trace with hash 235230012, now seen corresponding path program 1 times [2023-08-25 19:21:44,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:44,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624870818] [2023-08-25 19:21:44,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:44,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:44,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:44,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:44,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624870818] [2023-08-25 19:21:44,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624870818] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:44,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:44,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:21:44,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648032391] [2023-08-25 19:21:44,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:44,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:21:44,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:44,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:21:44,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:21:44,267 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 638 [2023-08-25 19:21:44,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 79 transitions, 414 flow. Second operand has 3 states, 3 states have (on average 309.6666666666667) internal successors, (929), 3 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:44,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:44,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 638 [2023-08-25 19:21:44,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:44,538 INFO L124 PetriNetUnfolderBase]: 2324/4352 cut-off events. [2023-08-25 19:21:44,538 INFO L125 PetriNetUnfolderBase]: For 5260/5327 co-relation queries the response was YES. [2023-08-25 19:21:44,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12808 conditions, 4352 events. 2324/4352 cut-off events. For 5260/5327 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 31743 event pairs, 972 based on Foata normal form. 239/4342 useless extension candidates. Maximal degree in co-relation 12783. Up to 2765 conditions per place. [2023-08-25 19:21:44,559 INFO L140 encePairwiseOnDemand]: 634/638 looper letters, 60 selfloop transitions, 2 changer transitions 11/100 dead transitions. [2023-08-25 19:21:44,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 100 transitions, 653 flow [2023-08-25 19:21:44,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:21:44,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:21:44,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 959 transitions. [2023-08-25 19:21:44,561 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5010449320794148 [2023-08-25 19:21:44,561 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 959 transitions. [2023-08-25 19:21:44,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 959 transitions. [2023-08-25 19:21:44,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:44,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 959 transitions. [2023-08-25 19:21:44,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 319.6666666666667) internal successors, (959), 3 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 19:21:44,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:44,565 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:44,565 INFO L175 Difference]: Start difference. First operand has 100 places, 79 transitions, 414 flow. Second operand 3 states and 959 transitions. [2023-08-25 19:21:44,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 100 transitions, 653 flow [2023-08-25 19:21:44,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 100 transitions, 638 flow, removed 3 selfloop flow, removed 4 redundant places. [2023-08-25 19:21:44,573 INFO L231 Difference]: Finished difference. Result has 98 places, 74 transitions, 383 flow [2023-08-25 19:21:44,573 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=383, PETRI_PLACES=98, PETRI_TRANSITIONS=74} [2023-08-25 19:21:44,574 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 13 predicate places. [2023-08-25 19:21:44,574 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 74 transitions, 383 flow [2023-08-25 19:21:44,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 309.6666666666667) internal successors, (929), 3 states have internal predecessors, (929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:44,574 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:44,574 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, 1, 1, 1, 1] [2023-08-25 19:21:44,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-08-25 19:21:44,574 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:44,574 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:44,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1663328512, now seen corresponding path program 1 times [2023-08-25 19:21:44,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:44,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123295661] [2023-08-25 19:21:44,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:44,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:44,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:44,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:44,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:44,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123295661] [2023-08-25 19:21:44,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123295661] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:44,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:44,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 19:21:44,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081835428] [2023-08-25 19:21:44,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:44,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 19:21:44,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:44,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 19:21:44,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 19:21:44,598 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 638 [2023-08-25 19:21:44,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 74 transitions, 383 flow. Second operand has 3 states, 3 states have (on average 309.0) internal successors, (927), 3 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:44,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:44,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 638 [2023-08-25 19:21:44,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:44,850 INFO L124 PetriNetUnfolderBase]: 1716/3076 cut-off events. [2023-08-25 19:21:44,850 INFO L125 PetriNetUnfolderBase]: For 4786/4887 co-relation queries the response was YES. [2023-08-25 19:21:44,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9653 conditions, 3076 events. 1716/3076 cut-off events. For 4786/4887 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 20247 event pairs, 891 based on Foata normal form. 78/2948 useless extension candidates. Maximal degree in co-relation 9630. Up to 1913 conditions per place. [2023-08-25 19:21:44,867 INFO L140 encePairwiseOnDemand]: 634/638 looper letters, 63 selfloop transitions, 3 changer transitions 5/98 dead transitions. [2023-08-25 19:21:44,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 98 transitions, 637 flow [2023-08-25 19:21:44,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 19:21:44,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 19:21:44,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 955 transitions. [2023-08-25 19:21:44,869 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49895506792058514 [2023-08-25 19:21:44,869 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 955 transitions. [2023-08-25 19:21:44,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 955 transitions. [2023-08-25 19:21:44,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:44,870 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 955 transitions. [2023-08-25 19:21:44,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 318.3333333333333) internal successors, (955), 3 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:44,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:44,873 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 638.0) internal successors, (2552), 4 states have internal predecessors, (2552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:44,873 INFO L175 Difference]: Start difference. First operand has 98 places, 74 transitions, 383 flow. Second operand 3 states and 955 transitions. [2023-08-25 19:21:44,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 98 transitions, 637 flow [2023-08-25 19:21:44,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 98 transitions, 613 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-08-25 19:21:44,880 INFO L231 Difference]: Finished difference. Result has 96 places, 75 transitions, 393 flow [2023-08-25 19:21:44,880 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=393, PETRI_PLACES=96, PETRI_TRANSITIONS=75} [2023-08-25 19:21:44,880 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 11 predicate places. [2023-08-25 19:21:44,880 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 75 transitions, 393 flow [2023-08-25 19:21:44,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 309.0) internal successors, (927), 3 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:44,881 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:44,881 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:44,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-08-25 19:21:44,881 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:44,881 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:44,881 INFO L85 PathProgramCache]: Analyzing trace with hash -2112932298, now seen corresponding path program 1 times [2023-08-25 19:21:44,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:44,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926565156] [2023-08-25 19:21:44,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:44,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:44,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:45,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:45,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:45,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926565156] [2023-08-25 19:21:45,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926565156] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:45,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:45,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:21:45,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834725020] [2023-08-25 19:21:45,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:45,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:21:45,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:45,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:21:45,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:21:45,186 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 638 [2023-08-25 19:21:45,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 75 transitions, 393 flow. Second operand has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:45,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:45,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 638 [2023-08-25 19:21:45,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:45,508 INFO L124 PetriNetUnfolderBase]: 1799/3151 cut-off events. [2023-08-25 19:21:45,508 INFO L125 PetriNetUnfolderBase]: For 4927/5102 co-relation queries the response was YES. [2023-08-25 19:21:45,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9704 conditions, 3151 events. 1799/3151 cut-off events. For 4927/5102 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 19887 event pairs, 295 based on Foata normal form. 38/3002 useless extension candidates. Maximal degree in co-relation 9683. Up to 1263 conditions per place. [2023-08-25 19:21:45,522 INFO L140 encePairwiseOnDemand]: 630/638 looper letters, 83 selfloop transitions, 10 changer transitions 18/138 dead transitions. [2023-08-25 19:21:45,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 138 transitions, 884 flow [2023-08-25 19:21:45,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:21:45,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:21:45,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1833 transitions. [2023-08-25 19:21:45,525 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4788401253918495 [2023-08-25 19:21:45,525 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1833 transitions. [2023-08-25 19:21:45,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1833 transitions. [2023-08-25 19:21:45,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:45,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1833 transitions. [2023-08-25 19:21:45,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 305.5) internal successors, (1833), 6 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:45,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 638.0) internal successors, (4466), 7 states have internal predecessors, (4466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:45,531 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 638.0) internal successors, (4466), 7 states have internal predecessors, (4466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:45,531 INFO L175 Difference]: Start difference. First operand has 96 places, 75 transitions, 393 flow. Second operand 6 states and 1833 transitions. [2023-08-25 19:21:45,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 138 transitions, 884 flow [2023-08-25 19:21:45,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 138 transitions, 879 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 19:21:45,536 INFO L231 Difference]: Finished difference. Result has 104 places, 79 transitions, 454 flow [2023-08-25 19:21:45,536 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=454, PETRI_PLACES=104, PETRI_TRANSITIONS=79} [2023-08-25 19:21:45,536 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 19 predicate places. [2023-08-25 19:21:45,536 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 79 transitions, 454 flow [2023-08-25 19:21:45,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:45,537 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:45,537 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:45,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-08-25 19:21:45,537 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:45,537 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:45,537 INFO L85 PathProgramCache]: Analyzing trace with hash -475403858, now seen corresponding path program 2 times [2023-08-25 19:21:45,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:45,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144829607] [2023-08-25 19:21:45,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:45,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:45,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:45,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:45,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144829607] [2023-08-25 19:21:45,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144829607] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:45,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:45,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:21:45,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106320297] [2023-08-25 19:21:45,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:45,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:21:45,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:45,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:21:45,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:21:45,764 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 638 [2023-08-25 19:21:45,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 79 transitions, 454 flow. Second operand has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:45,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:45,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 638 [2023-08-25 19:21:45,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:46,075 INFO L124 PetriNetUnfolderBase]: 1767/3147 cut-off events. [2023-08-25 19:21:46,075 INFO L125 PetriNetUnfolderBase]: For 5708/5932 co-relation queries the response was YES. [2023-08-25 19:21:46,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10235 conditions, 3147 events. 1767/3147 cut-off events. For 5708/5932 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 19783 event pairs, 349 based on Foata normal form. 84/3054 useless extension candidates. Maximal degree in co-relation 10210. Up to 1616 conditions per place. [2023-08-25 19:21:46,092 INFO L140 encePairwiseOnDemand]: 630/638 looper letters, 89 selfloop transitions, 11 changer transitions 14/141 dead transitions. [2023-08-25 19:21:46,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 141 transitions, 935 flow [2023-08-25 19:21:46,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:21:46,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:21:46,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1836 transitions. [2023-08-25 19:21:46,100 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47962382445141066 [2023-08-25 19:21:46,100 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1836 transitions. [2023-08-25 19:21:46,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1836 transitions. [2023-08-25 19:21:46,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:46,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1836 transitions. [2023-08-25 19:21:46,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 306.0) internal successors, (1836), 6 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:46,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 638.0) internal successors, (4466), 7 states have internal predecessors, (4466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:46,106 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 638.0) internal successors, (4466), 7 states have internal predecessors, (4466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:46,106 INFO L175 Difference]: Start difference. First operand has 104 places, 79 transitions, 454 flow. Second operand 6 states and 1836 transitions. [2023-08-25 19:21:46,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 141 transitions, 935 flow [2023-08-25 19:21:46,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 141 transitions, 928 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-25 19:21:46,114 INFO L231 Difference]: Finished difference. Result has 108 places, 79 transitions, 476 flow [2023-08-25 19:21:46,114 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=476, PETRI_PLACES=108, PETRI_TRANSITIONS=79} [2023-08-25 19:21:46,114 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 23 predicate places. [2023-08-25 19:21:46,114 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 79 transitions, 476 flow [2023-08-25 19:21:46,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:46,115 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:46,115 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:46,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-08-25 19:21:46,115 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:46,115 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:46,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1118808176, now seen corresponding path program 3 times [2023-08-25 19:21:46,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:46,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545844940] [2023-08-25 19:21:46,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:46,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:46,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:46,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:46,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545844940] [2023-08-25 19:21:46,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545844940] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:46,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:46,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:21:46,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99617570] [2023-08-25 19:21:46,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:46,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:21:46,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:46,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:21:46,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:21:46,306 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 638 [2023-08-25 19:21:46,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 79 transitions, 476 flow. Second operand has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:46,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:46,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 638 [2023-08-25 19:21:46,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:46,609 INFO L124 PetriNetUnfolderBase]: 1843/3295 cut-off events. [2023-08-25 19:21:46,609 INFO L125 PetriNetUnfolderBase]: For 7129/7385 co-relation queries the response was YES. [2023-08-25 19:21:46,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10976 conditions, 3295 events. 1843/3295 cut-off events. For 7129/7385 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 20905 event pairs, 287 based on Foata normal form. 82/3202 useless extension candidates. Maximal degree in co-relation 10950. Up to 1351 conditions per place. [2023-08-25 19:21:46,628 INFO L140 encePairwiseOnDemand]: 630/638 looper letters, 84 selfloop transitions, 11 changer transitions 12/134 dead transitions. [2023-08-25 19:21:46,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 134 transitions, 925 flow [2023-08-25 19:21:46,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:21:46,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:21:46,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1831 transitions. [2023-08-25 19:21:46,631 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4783176593521421 [2023-08-25 19:21:46,631 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1831 transitions. [2023-08-25 19:21:46,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1831 transitions. [2023-08-25 19:21:46,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:46,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1831 transitions. [2023-08-25 19:21:46,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 305.1666666666667) internal successors, (1831), 6 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:46,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 638.0) internal successors, (4466), 7 states have internal predecessors, (4466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:46,636 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 638.0) internal successors, (4466), 7 states have internal predecessors, (4466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:46,636 INFO L175 Difference]: Start difference. First operand has 108 places, 79 transitions, 476 flow. Second operand 6 states and 1831 transitions. [2023-08-25 19:21:46,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 134 transitions, 925 flow [2023-08-25 19:21:46,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 134 transitions, 909 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-08-25 19:21:46,644 INFO L231 Difference]: Finished difference. Result has 113 places, 80 transitions, 503 flow [2023-08-25 19:21:46,644 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=503, PETRI_PLACES=113, PETRI_TRANSITIONS=80} [2023-08-25 19:21:46,645 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 28 predicate places. [2023-08-25 19:21:46,645 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 80 transitions, 503 flow [2023-08-25 19:21:46,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:46,645 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:46,645 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:46,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-08-25 19:21:46,645 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:46,646 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:46,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1632167852, now seen corresponding path program 4 times [2023-08-25 19:21:46,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:46,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639579146] [2023-08-25 19:21:46,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:46,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:46,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:46,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:46,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:46,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639579146] [2023-08-25 19:21:46,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639579146] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:46,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:46,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:21:46,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031633073] [2023-08-25 19:21:46,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:46,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:21:46,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:46,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:21:46,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:21:46,803 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 638 [2023-08-25 19:21:46,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 80 transitions, 503 flow. Second operand has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:46,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:46,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 638 [2023-08-25 19:21:46,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:47,114 INFO L124 PetriNetUnfolderBase]: 1805/3227 cut-off events. [2023-08-25 19:21:47,114 INFO L125 PetriNetUnfolderBase]: For 8259/8567 co-relation queries the response was YES. [2023-08-25 19:21:47,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11194 conditions, 3227 events. 1805/3227 cut-off events. For 8259/8567 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 20536 event pairs, 337 based on Foata normal form. 66/3118 useless extension candidates. Maximal degree in co-relation 11165. Up to 1490 conditions per place. [2023-08-25 19:21:47,133 INFO L140 encePairwiseOnDemand]: 630/638 looper letters, 91 selfloop transitions, 13 changer transitions 11/142 dead transitions. [2023-08-25 19:21:47,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 142 transitions, 1006 flow [2023-08-25 19:21:47,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:21:47,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:21:47,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1834 transitions. [2023-08-25 19:21:47,136 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47910135841170326 [2023-08-25 19:21:47,136 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1834 transitions. [2023-08-25 19:21:47,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1834 transitions. [2023-08-25 19:21:47,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:47,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1834 transitions. [2023-08-25 19:21:47,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 305.6666666666667) internal successors, (1834), 6 states have internal predecessors, (1834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:47,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 638.0) internal successors, (4466), 7 states have internal predecessors, (4466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:47,142 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 638.0) internal successors, (4466), 7 states have internal predecessors, (4466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:47,142 INFO L175 Difference]: Start difference. First operand has 113 places, 80 transitions, 503 flow. Second operand 6 states and 1834 transitions. [2023-08-25 19:21:47,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 142 transitions, 1006 flow [2023-08-25 19:21:47,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 142 transitions, 984 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-08-25 19:21:47,152 INFO L231 Difference]: Finished difference. Result has 117 places, 81 transitions, 533 flow [2023-08-25 19:21:47,152 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=533, PETRI_PLACES=117, PETRI_TRANSITIONS=81} [2023-08-25 19:21:47,152 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 32 predicate places. [2023-08-25 19:21:47,152 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 81 transitions, 533 flow [2023-08-25 19:21:47,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:47,152 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:47,153 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:47,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-08-25 19:21:47,153 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:47,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:47,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1080679964, now seen corresponding path program 5 times [2023-08-25 19:21:47,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:47,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310109795] [2023-08-25 19:21:47,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:47,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:47,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:47,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:47,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:47,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310109795] [2023-08-25 19:21:47,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310109795] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:47,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:47,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:21:47,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894381691] [2023-08-25 19:21:47,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:47,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:21:47,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:47,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:21:47,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:21:47,307 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 638 [2023-08-25 19:21:47,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 81 transitions, 533 flow. Second operand has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:47,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:47,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 638 [2023-08-25 19:21:47,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:47,639 INFO L124 PetriNetUnfolderBase]: 1771/3163 cut-off events. [2023-08-25 19:21:47,639 INFO L125 PetriNetUnfolderBase]: For 9553/9889 co-relation queries the response was YES. [2023-08-25 19:21:47,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11315 conditions, 3163 events. 1771/3163 cut-off events. For 9553/9889 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 20266 event pairs, 375 based on Foata normal form. 82/3070 useless extension candidates. Maximal degree in co-relation 11284. Up to 1760 conditions per place. [2023-08-25 19:21:47,658 INFO L140 encePairwiseOnDemand]: 630/638 looper letters, 77 selfloop transitions, 11 changer transitions 26/141 dead transitions. [2023-08-25 19:21:47,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 141 transitions, 1006 flow [2023-08-25 19:21:47,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:21:47,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:21:47,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1835 transitions. [2023-08-25 19:21:47,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47936259143155696 [2023-08-25 19:21:47,661 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1835 transitions. [2023-08-25 19:21:47,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1835 transitions. [2023-08-25 19:21:47,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:47,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1835 transitions. [2023-08-25 19:21:47,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 305.8333333333333) internal successors, (1835), 6 states have internal predecessors, (1835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:47,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 638.0) internal successors, (4466), 7 states have internal predecessors, (4466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:47,666 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 638.0) internal successors, (4466), 7 states have internal predecessors, (4466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:47,667 INFO L175 Difference]: Start difference. First operand has 117 places, 81 transitions, 533 flow. Second operand 6 states and 1835 transitions. [2023-08-25 19:21:47,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 141 transitions, 1006 flow [2023-08-25 19:21:47,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 141 transitions, 992 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-08-25 19:21:47,685 INFO L231 Difference]: Finished difference. Result has 121 places, 80 transitions, 537 flow [2023-08-25 19:21:47,685 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=537, PETRI_PLACES=121, PETRI_TRANSITIONS=80} [2023-08-25 19:21:47,685 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 36 predicate places. [2023-08-25 19:21:47,685 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 80 transitions, 537 flow [2023-08-25 19:21:47,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:47,685 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 19:21:47,685 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:47,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-08-25 19:21:47,686 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2023-08-25 19:21:47,686 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 19:21:47,686 INFO L85 PathProgramCache]: Analyzing trace with hash 626829160, now seen corresponding path program 6 times [2023-08-25 19:21:47,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 19:21:47,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452945317] [2023-08-25 19:21:47,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 19:21:47,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 19:21:47,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 19:21:47,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 19:21:47,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 19:21:47,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452945317] [2023-08-25 19:21:47,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452945317] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 19:21:47,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 19:21:47,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 19:21:47,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427473511] [2023-08-25 19:21:47,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 19:21:47,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 19:21:47,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 19:21:47,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 19:21:47,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-25 19:21:47,853 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 638 [2023-08-25 19:21:47,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 80 transitions, 537 flow. Second operand has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:47,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 19:21:47,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 638 [2023-08-25 19:21:47,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 19:21:48,147 INFO L124 PetriNetUnfolderBase]: 1661/2973 cut-off events. [2023-08-25 19:21:48,147 INFO L125 PetriNetUnfolderBase]: For 9773/9969 co-relation queries the response was YES. [2023-08-25 19:21:48,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11078 conditions, 2973 events. 1661/2973 cut-off events. For 9773/9969 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 18907 event pairs, 303 based on Foata normal form. 64/2866 useless extension candidates. Maximal degree in co-relation 11045. Up to 1370 conditions per place. [2023-08-25 19:21:48,161 INFO L140 encePairwiseOnDemand]: 630/638 looper letters, 0 selfloop transitions, 0 changer transitions 131/131 dead transitions. [2023-08-25 19:21:48,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 131 transitions, 972 flow [2023-08-25 19:21:48,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 19:21:48,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 19:21:48,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1825 transitions. [2023-08-25 19:21:48,166 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47675026123301983 [2023-08-25 19:21:48,166 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1825 transitions. [2023-08-25 19:21:48,166 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1825 transitions. [2023-08-25 19:21:48,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 19:21:48,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1825 transitions. [2023-08-25 19:21:48,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 304.1666666666667) internal successors, (1825), 6 states have internal predecessors, (1825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:48,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 638.0) internal successors, (4466), 7 states have internal predecessors, (4466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:48,171 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 638.0) internal successors, (4466), 7 states have internal predecessors, (4466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:48,172 INFO L175 Difference]: Start difference. First operand has 121 places, 80 transitions, 537 flow. Second operand 6 states and 1825 transitions. [2023-08-25 19:21:48,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 131 transitions, 972 flow [2023-08-25 19:21:48,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 131 transitions, 940 flow, removed 4 selfloop flow, removed 5 redundant places. [2023-08-25 19:21:48,187 INFO L231 Difference]: Finished difference. Result has 118 places, 0 transitions, 0 flow [2023-08-25 19:21:48,187 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=638, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=118, PETRI_TRANSITIONS=0} [2023-08-25 19:21:48,188 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 33 predicate places. [2023-08-25 19:21:48,188 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 0 transitions, 0 flow [2023-08-25 19:21:48,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 296.0) internal successors, (1480), 5 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 19:21:48,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (51 of 52 remaining) [2023-08-25 19:21:48,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (50 of 52 remaining) [2023-08-25 19:21:48,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (49 of 52 remaining) [2023-08-25 19:21:48,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (48 of 52 remaining) [2023-08-25 19:21:48,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (47 of 52 remaining) [2023-08-25 19:21:48,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (46 of 52 remaining) [2023-08-25 19:21:48,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (45 of 52 remaining) [2023-08-25 19:21:48,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (44 of 52 remaining) [2023-08-25 19:21:48,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (43 of 52 remaining) [2023-08-25 19:21:48,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (42 of 52 remaining) [2023-08-25 19:21:48,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (41 of 52 remaining) [2023-08-25 19:21:48,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (40 of 52 remaining) [2023-08-25 19:21:48,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (39 of 52 remaining) [2023-08-25 19:21:48,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (38 of 52 remaining) [2023-08-25 19:21:48,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (37 of 52 remaining) [2023-08-25 19:21:48,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (36 of 52 remaining) [2023-08-25 19:21:48,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (35 of 52 remaining) [2023-08-25 19:21:48,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (34 of 52 remaining) [2023-08-25 19:21:48,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 52 remaining) [2023-08-25 19:21:48,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 52 remaining) [2023-08-25 19:21:48,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 52 remaining) [2023-08-25 19:21:48,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 52 remaining) [2023-08-25 19:21:48,195 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 52 remaining) [2023-08-25 19:21:48,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (28 of 52 remaining) [2023-08-25 19:21:48,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (27 of 52 remaining) [2023-08-25 19:21:48,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 52 remaining) [2023-08-25 19:21:48,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (25 of 52 remaining) [2023-08-25 19:21:48,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (24 of 52 remaining) [2023-08-25 19:21:48,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (23 of 52 remaining) [2023-08-25 19:21:48,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (22 of 52 remaining) [2023-08-25 19:21:48,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONASSERT (21 of 52 remaining) [2023-08-25 19:21:48,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 52 remaining) [2023-08-25 19:21:48,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 52 remaining) [2023-08-25 19:21:48,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 52 remaining) [2023-08-25 19:21:48,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (17 of 52 remaining) [2023-08-25 19:21:48,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (16 of 52 remaining) [2023-08-25 19:21:48,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (15 of 52 remaining) [2023-08-25 19:21:48,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (14 of 52 remaining) [2023-08-25 19:21:48,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (13 of 52 remaining) [2023-08-25 19:21:48,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (12 of 52 remaining) [2023-08-25 19:21:48,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (11 of 52 remaining) [2023-08-25 19:21:48,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (10 of 52 remaining) [2023-08-25 19:21:48,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (9 of 52 remaining) [2023-08-25 19:21:48,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (8 of 52 remaining) [2023-08-25 19:21:48,197 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (7 of 52 remaining) [2023-08-25 19:21:48,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (6 of 52 remaining) [2023-08-25 19:21:48,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (5 of 52 remaining) [2023-08-25 19:21:48,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (4 of 52 remaining) [2023-08-25 19:21:48,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (3 of 52 remaining) [2023-08-25 19:21:48,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (2 of 52 remaining) [2023-08-25 19:21:48,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (1 of 52 remaining) [2023-08-25 19:21:48,198 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (0 of 52 remaining) [2023-08-25 19:21:48,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-08-25 19:21:48,198 INFO L445 BasicCegarLoop]: Path program histogram: [6, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 19:21:48,202 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 19:21:48,202 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 19:21:48,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:21:48 BasicIcfg [2023-08-25 19:21:48,204 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 19:21:48,205 INFO L158 Benchmark]: Toolchain (without parser) took 19211.27ms. Allocated memory was 408.9MB in the beginning and 1.5GB in the end (delta: 1.1GB). Free memory was 384.5MB in the beginning and 1.2GB in the end (delta: -782.4MB). Peak memory consumption was 318.6MB. Max. memory is 16.0GB. [2023-08-25 19:21:48,205 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 408.9MB. Free memory is still 385.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 19:21:48,205 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.95ms. Allocated memory is still 408.9MB. Free memory was 383.6MB in the beginning and 372.2MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-08-25 19:21:48,206 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.69ms. Allocated memory is still 408.9MB. Free memory was 372.2MB in the beginning and 370.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 19:21:48,206 INFO L158 Benchmark]: Boogie Preprocessor took 18.43ms. Allocated memory is still 408.9MB. Free memory was 370.1MB in the beginning and 368.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 19:21:48,206 INFO L158 Benchmark]: RCFGBuilder took 511.84ms. Allocated memory is still 408.9MB. Free memory was 368.0MB in the beginning and 342.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-25 19:21:48,207 INFO L158 Benchmark]: TraceAbstraction took 18397.54ms. Allocated memory was 408.9MB in the beginning and 1.5GB in the end (delta: 1.1GB). Free memory was 342.6MB in the beginning and 1.2GB in the end (delta: -824.3MB). Peak memory consumption was 276.7MB. Max. memory is 16.0GB. [2023-08-25 19:21:48,207 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 408.9MB. Free memory is still 385.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 232.95ms. Allocated memory is still 408.9MB. Free memory was 383.6MB in the beginning and 372.2MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 44.69ms. Allocated memory is still 408.9MB. Free memory was 372.2MB in the beginning and 370.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 18.43ms. Allocated memory is still 408.9MB. Free memory was 370.1MB in the beginning and 368.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 511.84ms. Allocated memory is still 408.9MB. Free memory was 368.0MB in the beginning and 342.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * TraceAbstraction took 18397.54ms. Allocated memory was 408.9MB in the beginning and 1.5GB in the end (delta: 1.1GB). Free memory was 342.6MB in the beginning and 1.2GB in the end (delta: -824.3MB). Peak memory consumption was 276.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.9s, 304 PlacesBefore, 85 PlacesAfterwards, 309 TransitionsBefore, 82 TransitionsAfterwards, 25272 CoEnabledTransitionPairs, 9 FixpointIterations, 119 TrivialSequentialCompositions, 139 ConcurrentSequentialCompositions, 11 TrivialYvCompositions, 38 ConcurrentYvCompositions, 8 ChoiceCompositions, 315 TotalNumberOfCompositions, 78955 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 46875, independent: 45938, independent conditional: 0, independent unconditional: 45938, dependent: 937, dependent conditional: 0, dependent unconditional: 937, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 15036, independent: 14954, independent conditional: 0, independent unconditional: 14954, dependent: 82, dependent conditional: 0, dependent unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 46875, independent: 30984, independent conditional: 0, independent unconditional: 30984, dependent: 855, dependent conditional: 0, dependent unconditional: 855, unknown: 15036, unknown conditional: 0, unknown unconditional: 15036] , Statistics on independence cache: Total cache size (in pairs): 1152, Positive cache size: 1107, Positive conditional cache size: 0, Positive unconditional cache size: 1107, Negative cache size: 45, Negative conditional cache size: 0, Negative unconditional cache size: 45, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: 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: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 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: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: 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, 465 locations, 52 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: 18.3s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 10.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 785 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 785 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2950 IncrementalHoareTripleChecker+Invalid, 2996 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 24 mSDtfsCounter, 2950 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=537occurred in iteration=24, InterpolantAutomatonStates: 100, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 605 NumberOfCodeBlocks, 605 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 580 ConstructedInterpolants, 0 QuantifiedInterpolants, 1404 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 25 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 31 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 19:21:48,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...