/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/pthread-deagle/circular_buffer_ok.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 21:40:35,455 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 21:40:35,547 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 21:40:35,555 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 21:40:35,556 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 21:40:35,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 21:40:35,590 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 21:40:35,594 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 21:40:35,595 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 21:40:35,598 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 21:40:35,599 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 21:40:35,599 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 21:40:35,599 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 21:40:35,600 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 21:40:35,600 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 21:40:35,601 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 21:40:35,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 21:40:35,601 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 21:40:35,601 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 21:40:35,601 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 21:40:35,602 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 21:40:35,602 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 21:40:35,603 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 21:40:35,603 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 21:40:35,603 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 21:40:35,603 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 21:40:35,604 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 21:40:35,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 21:40:35,604 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 21:40:35,604 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 21:40:35,605 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 21:40:35,605 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 21:40:35,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 21:40:35,606 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 21:40:35,606 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 21:40:35,606 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 21:40:35,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 21:40:35,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 21:40:35,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 21:40:35,941 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 21:40:35,943 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 21:40:35,944 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i [2023-08-25 21:40:37,074 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 21:40:37,317 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 21:40:37,317 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-deagle/circular_buffer_ok.i [2023-08-25 21:40:37,331 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa941c69b/d7edf9f5d3ff44ad88586b763bcc9948/FLAG2da896089 [2023-08-25 21:40:37,348 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa941c69b/d7edf9f5d3ff44ad88586b763bcc9948 [2023-08-25 21:40:37,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 21:40:37,351 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 21:40:37,352 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 21:40:37,352 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 21:40:37,355 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 21:40:37,355 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:40:37" (1/1) ... [2023-08-25 21:40:37,356 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f21b4fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:40:37, skipping insertion in model container [2023-08-25 21:40:37,356 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 09:40:37" (1/1) ... [2023-08-25 21:40:37,406 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 21:40:37,730 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 21:40:37,742 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 21:40:37,765 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [208] [2023-08-25 21:40:37,766 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [209] [2023-08-25 21:40:37,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 21:40:37,846 INFO L206 MainTranslator]: Completed translation [2023-08-25 21:40:37,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:40:37 WrapperNode [2023-08-25 21:40:37,847 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 21:40:37,848 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 21:40:37,848 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 21:40:37,848 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 21:40:37,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:40:37" (1/1) ... [2023-08-25 21:40:37,886 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:40:37" (1/1) ... [2023-08-25 21:40:37,929 INFO L138 Inliner]: procedures = 168, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 259 [2023-08-25 21:40:37,930 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 21:40:37,930 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 21:40:37,930 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 21:40:37,930 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 21:40:37,939 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:40:37" (1/1) ... [2023-08-25 21:40:37,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:40:37" (1/1) ... [2023-08-25 21:40:37,953 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:40:37" (1/1) ... [2023-08-25 21:40:37,953 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:40:37" (1/1) ... [2023-08-25 21:40:37,961 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:40:37" (1/1) ... [2023-08-25 21:40:37,979 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:40:37" (1/1) ... [2023-08-25 21:40:37,981 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:40:37" (1/1) ... [2023-08-25 21:40:37,983 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:40:37" (1/1) ... [2023-08-25 21:40:37,986 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 21:40:37,986 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 21:40:37,987 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 21:40:37,987 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 21:40:37,987 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:40:37" (1/1) ... [2023-08-25 21:40:37,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 21:40:38,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:40:38,030 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 21:40:38,047 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 21:40:38,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 21:40:38,063 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-08-25 21:40:38,063 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-08-25 21:40:38,063 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-08-25 21:40:38,063 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-08-25 21:40:38,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 21:40:38,064 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 21:40:38,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 21:40:38,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 21:40:38,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 21:40:38,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-08-25 21:40:38,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 21:40:38,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 21:40:38,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 21:40:38,066 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 21:40:38,195 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 21:40:38,197 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 21:40:38,516 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 21:40:38,526 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 21:40:38,526 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-25 21:40:38,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:40:38 BoogieIcfgContainer [2023-08-25 21:40:38,529 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 21:40:38,531 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 21:40:38,531 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 21:40:38,534 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 21:40:38,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 09:40:37" (1/3) ... [2023-08-25 21:40:38,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33cf27e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:40:38, skipping insertion in model container [2023-08-25 21:40:38,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 09:40:37" (2/3) ... [2023-08-25 21:40:38,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33cf27e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 09:40:38, skipping insertion in model container [2023-08-25 21:40:38,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 09:40:38" (3/3) ... [2023-08-25 21:40:38,536 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_ok.i [2023-08-25 21:40:38,551 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 21:40:38,551 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2023-08-25 21:40:38,551 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 21:40:38,682 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 21:40:38,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 294 places, 303 transitions, 622 flow [2023-08-25 21:40:38,872 INFO L124 PetriNetUnfolderBase]: 16/301 cut-off events. [2023-08-25 21:40:38,873 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 21:40:38,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 301 events. 16/301 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 847 event pairs, 0 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 215. Up to 2 conditions per place. [2023-08-25 21:40:38,892 INFO L82 GeneralOperation]: Start removeDead. Operand has 294 places, 303 transitions, 622 flow [2023-08-25 21:40:38,902 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 283 places, 292 transitions, 593 flow [2023-08-25 21:40:38,906 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 21:40:38,921 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 283 places, 292 transitions, 593 flow [2023-08-25 21:40:38,925 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 283 places, 292 transitions, 593 flow [2023-08-25 21:40:38,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 283 places, 292 transitions, 593 flow [2023-08-25 21:40:39,003 INFO L124 PetriNetUnfolderBase]: 16/292 cut-off events. [2023-08-25 21:40:39,004 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 21:40:39,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 292 events. 16/292 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 786 event pairs, 0 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 215. Up to 2 conditions per place. [2023-08-25 21:40:39,021 INFO L119 LiptonReduction]: Number of co-enabled transitions 25368 [2023-08-25 21:40:44,652 INFO L134 LiptonReduction]: Checked pairs total: 130043 [2023-08-25 21:40:44,653 INFO L136 LiptonReduction]: Total number of compositions: 244 [2023-08-25 21:40:44,670 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 21:40:44,675 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;@2f091373, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 21:40:44,675 INFO L358 AbstractCegarLoop]: Starting to check reachability of 66 error locations. [2023-08-25 21:40:44,676 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 21:40:44,676 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 21:40:44,676 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 21:40:44,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:40:44,676 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 21:40:44,677 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2023-08-25 21:40:44,680 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:40:44,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1148, now seen corresponding path program 1 times [2023-08-25 21:40:44,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:40:44,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148534956] [2023-08-25 21:40:44,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:40:44,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:40:44,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:40:44,777 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 21:40:44,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:40:44,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148534956] [2023-08-25 21:40:44,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148534956] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:40:44,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:40:44,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 21:40:44,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825749405] [2023-08-25 21:40:44,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:40:44,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 21:40:44,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:40:44,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 21:40:44,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 21:40:44,815 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 547 [2023-08-25 21:40:44,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 126 transitions, 261 flow. Second operand has 2 states, 2 states have (on average 288.5) internal successors, (577), 2 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:44,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:40:44,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 547 [2023-08-25 21:40:44,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:40:45,248 INFO L124 PetriNetUnfolderBase]: 1595/3705 cut-off events. [2023-08-25 21:40:45,248 INFO L125 PetriNetUnfolderBase]: For 78/78 co-relation queries the response was YES. [2023-08-25 21:40:45,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6288 conditions, 3705 events. 1595/3705 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 27416 event pairs, 1251 based on Foata normal form. 126/2984 useless extension candidates. Maximal degree in co-relation 5996. Up to 2515 conditions per place. [2023-08-25 21:40:45,271 INFO L140 encePairwiseOnDemand]: 534/547 looper letters, 54 selfloop transitions, 0 changer transitions 0/113 dead transitions. [2023-08-25 21:40:45,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 113 transitions, 343 flow [2023-08-25 21:40:45,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 21:40:45,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 21:40:45,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 643 transitions. [2023-08-25 21:40:45,289 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5877513711151737 [2023-08-25 21:40:45,290 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 643 transitions. [2023-08-25 21:40:45,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 643 transitions. [2023-08-25 21:40:45,293 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:40:45,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 643 transitions. [2023-08-25 21:40:45,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 321.5) internal successors, (643), 2 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:45,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 547.0) internal successors, (1641), 3 states have internal predecessors, (1641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:45,308 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 547.0) internal successors, (1641), 3 states have internal predecessors, (1641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:45,309 INFO L175 Difference]: Start difference. First operand has 122 places, 126 transitions, 261 flow. Second operand 2 states and 643 transitions. [2023-08-25 21:40:45,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 113 transitions, 343 flow [2023-08-25 21:40:45,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 113 transitions, 338 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 21:40:45,317 INFO L231 Difference]: Finished difference. Result has 110 places, 113 transitions, 230 flow [2023-08-25 21:40:45,319 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=230, PETRI_PLACES=110, PETRI_TRANSITIONS=113} [2023-08-25 21:40:45,322 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, -12 predicate places. [2023-08-25 21:40:45,323 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 113 transitions, 230 flow [2023-08-25 21:40:45,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 288.5) internal successors, (577), 2 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:45,323 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:40:45,324 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 21:40:45,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 21:40:45,324 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2023-08-25 21:40:45,332 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:40:45,332 INFO L85 PathProgramCache]: Analyzing trace with hash -599294415, now seen corresponding path program 1 times [2023-08-25 21:40:45,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:40:45,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781187478] [2023-08-25 21:40:45,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:40:45,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:40:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:40:45,506 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 21:40:45,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:40:45,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781187478] [2023-08-25 21:40:45,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781187478] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:40:45,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:40:45,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:40:45,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692067222] [2023-08-25 21:40:45,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:40:45,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:40:45,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:40:45,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:40:45,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:40:45,511 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 547 [2023-08-25 21:40:45,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 113 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 278.0) internal successors, (834), 3 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:45,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:40:45,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 547 [2023-08-25 21:40:45,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:40:46,262 INFO L124 PetriNetUnfolderBase]: 3733/7900 cut-off events. [2023-08-25 21:40:46,262 INFO L125 PetriNetUnfolderBase]: For 22/47 co-relation queries the response was YES. [2023-08-25 21:40:46,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13862 conditions, 7900 events. 3733/7900 cut-off events. For 22/47 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 60540 event pairs, 982 based on Foata normal form. 1/6262 useless extension candidates. Maximal degree in co-relation 13859. Up to 3266 conditions per place. [2023-08-25 21:40:46,313 INFO L140 encePairwiseOnDemand]: 542/547 looper letters, 111 selfloop transitions, 4 changer transitions 0/166 dead transitions. [2023-08-25 21:40:46,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 166 transitions, 569 flow [2023-08-25 21:40:46,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:40:46,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:40:46,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 944 transitions. [2023-08-25 21:40:46,317 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5752589884216941 [2023-08-25 21:40:46,317 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 944 transitions. [2023-08-25 21:40:46,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 944 transitions. [2023-08-25 21:40:46,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:40:46,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 944 transitions. [2023-08-25 21:40:46,320 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 21:40:46,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:46,325 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:46,325 INFO L175 Difference]: Start difference. First operand has 110 places, 113 transitions, 230 flow. Second operand 3 states and 944 transitions. [2023-08-25 21:40:46,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 166 transitions, 569 flow [2023-08-25 21:40:46,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 166 transitions, 569 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 21:40:46,331 INFO L231 Difference]: Finished difference. Result has 114 places, 117 transitions, 264 flow [2023-08-25 21:40:46,332 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=114, PETRI_TRANSITIONS=117} [2023-08-25 21:40:46,332 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, -8 predicate places. [2023-08-25 21:40:46,333 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 117 transitions, 264 flow [2023-08-25 21:40:46,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 278.0) internal successors, (834), 3 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:46,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:40:46,335 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:40:46,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 21:40:46,338 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2023-08-25 21:40:46,340 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:40:46,340 INFO L85 PathProgramCache]: Analyzing trace with hash 754671748, now seen corresponding path program 1 times [2023-08-25 21:40:46,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:40:46,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689794511] [2023-08-25 21:40:46,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:40:46,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:40:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:40:46,420 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 21:40:46,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:40:46,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689794511] [2023-08-25 21:40:46,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689794511] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:40:46,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:40:46,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:40:46,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034541290] [2023-08-25 21:40:46,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:40:46,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:40:46,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:40:46,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:40:46,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:40:46,424 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 547 [2023-08-25 21:40:46,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 117 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 278.6666666666667) internal successors, (836), 3 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:46,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:40:46,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 547 [2023-08-25 21:40:46,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:40:47,382 INFO L124 PetriNetUnfolderBase]: 5325/10966 cut-off events. [2023-08-25 21:40:47,382 INFO L125 PetriNetUnfolderBase]: For 172/172 co-relation queries the response was YES. [2023-08-25 21:40:47,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19827 conditions, 10966 events. 5325/10966 cut-off events. For 172/172 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 87823 event pairs, 1571 based on Foata normal form. 0/8711 useless extension candidates. Maximal degree in co-relation 19822. Up to 4314 conditions per place. [2023-08-25 21:40:47,456 INFO L140 encePairwiseOnDemand]: 542/547 looper letters, 106 selfloop transitions, 4 changer transitions 0/166 dead transitions. [2023-08-25 21:40:47,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 166 transitions, 583 flow [2023-08-25 21:40:47,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:40:47,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:40:47,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 938 transitions. [2023-08-25 21:40:47,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5716026812918952 [2023-08-25 21:40:47,460 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 938 transitions. [2023-08-25 21:40:47,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 938 transitions. [2023-08-25 21:40:47,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:40:47,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 938 transitions. [2023-08-25 21:40:47,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 312.6666666666667) internal successors, (938), 3 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:47,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:47,466 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:47,466 INFO L175 Difference]: Start difference. First operand has 114 places, 117 transitions, 264 flow. Second operand 3 states and 938 transitions. [2023-08-25 21:40:47,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 166 transitions, 583 flow [2023-08-25 21:40:47,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 166 transitions, 575 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 21:40:47,472 INFO L231 Difference]: Finished difference. Result has 116 places, 121 transitions, 290 flow [2023-08-25 21:40:47,472 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=116, PETRI_TRANSITIONS=121} [2023-08-25 21:40:47,473 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, -6 predicate places. [2023-08-25 21:40:47,474 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 121 transitions, 290 flow [2023-08-25 21:40:47,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 278.6666666666667) internal successors, (836), 3 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:47,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:40:47,474 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:40:47,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 21:40:47,475 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2023-08-25 21:40:47,475 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:40:47,475 INFO L85 PathProgramCache]: Analyzing trace with hash 600155968, now seen corresponding path program 1 times [2023-08-25 21:40:47,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:40:47,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548393283] [2023-08-25 21:40:47,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:40:47,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:40:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:40:47,523 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 21:40:47,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:40:47,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548393283] [2023-08-25 21:40:47,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548393283] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:40:47,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:40:47,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:40:47,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28791862] [2023-08-25 21:40:47,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:40:47,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:40:47,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:40:47,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:40:47,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:40:47,526 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 547 [2023-08-25 21:40:47,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 121 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:47,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:40:47,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 547 [2023-08-25 21:40:47,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:40:48,688 INFO L124 PetriNetUnfolderBase]: 6446/13237 cut-off events. [2023-08-25 21:40:48,689 INFO L125 PetriNetUnfolderBase]: For 673/673 co-relation queries the response was YES. [2023-08-25 21:40:48,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24827 conditions, 13237 events. 6446/13237 cut-off events. For 673/673 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 104930 event pairs, 4473 based on Foata normal form. 0/10849 useless extension candidates. Maximal degree in co-relation 24821. Up to 9376 conditions per place. [2023-08-25 21:40:48,762 INFO L140 encePairwiseOnDemand]: 537/547 looper letters, 93 selfloop transitions, 5 changer transitions 0/149 dead transitions. [2023-08-25 21:40:48,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 149 transitions, 560 flow [2023-08-25 21:40:48,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:40:48,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:40:48,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 888 transitions. [2023-08-25 21:40:48,766 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5411334552102377 [2023-08-25 21:40:48,766 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 888 transitions. [2023-08-25 21:40:48,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 888 transitions. [2023-08-25 21:40:48,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:40:48,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 888 transitions. [2023-08-25 21:40:48,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 296.0) internal successors, (888), 3 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:48,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:48,773 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:48,773 INFO L175 Difference]: Start difference. First operand has 116 places, 121 transitions, 290 flow. Second operand 3 states and 888 transitions. [2023-08-25 21:40:48,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 149 transitions, 560 flow [2023-08-25 21:40:48,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 149 transitions, 548 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 21:40:48,781 INFO L231 Difference]: Finished difference. Result has 114 places, 120 transitions, 308 flow [2023-08-25 21:40:48,781 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=114, PETRI_TRANSITIONS=120} [2023-08-25 21:40:48,782 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, -8 predicate places. [2023-08-25 21:40:48,782 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 120 transitions, 308 flow [2023-08-25 21:40:48,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:48,783 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:40:48,783 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:40:48,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 21:40:48,783 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2023-08-25 21:40:48,783 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:40:48,783 INFO L85 PathProgramCache]: Analyzing trace with hash 357109585, now seen corresponding path program 1 times [2023-08-25 21:40:48,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:40:48,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576418523] [2023-08-25 21:40:48,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:40:48,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:40:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:40:49,164 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 21:40:49,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:40:49,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576418523] [2023-08-25 21:40:49,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576418523] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:40:49,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:40:49,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 21:40:49,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379721680] [2023-08-25 21:40:49,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:40:49,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 21:40:49,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:40:49,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 21:40:49,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 21:40:49,168 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 547 [2023-08-25 21:40:49,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 120 transitions, 308 flow. Second operand has 6 states, 6 states have (on average 265.6666666666667) internal successors, (1594), 6 states have internal predecessors, (1594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:49,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:40:49,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 547 [2023-08-25 21:40:49,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:40:54,988 INFO L124 PetriNetUnfolderBase]: 44095/75726 cut-off events. [2023-08-25 21:40:54,988 INFO L125 PetriNetUnfolderBase]: For 9311/9311 co-relation queries the response was YES. [2023-08-25 21:40:55,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152389 conditions, 75726 events. 44095/75726 cut-off events. For 9311/9311 co-relation queries the response was YES. Maximal size of possible extension queue 1336. Compared 667242 event pairs, 14347 based on Foata normal form. 0/60517 useless extension candidates. Maximal degree in co-relation 152382. Up to 37242 conditions per place. [2023-08-25 21:40:55,437 INFO L140 encePairwiseOnDemand]: 540/547 looper letters, 305 selfloop transitions, 9 changer transitions 0/359 dead transitions. [2023-08-25 21:40:55,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 359 transitions, 1543 flow [2023-08-25 21:40:55,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 21:40:55,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 21:40:55,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1869 transitions. [2023-08-25 21:40:55,445 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5694698354661791 [2023-08-25 21:40:55,445 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1869 transitions. [2023-08-25 21:40:55,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1869 transitions. [2023-08-25 21:40:55,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:40:55,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1869 transitions. [2023-08-25 21:40:55,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 311.5) internal successors, (1869), 6 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:55,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 547.0) internal successors, (3829), 7 states have internal predecessors, (3829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:55,459 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 547.0) internal successors, (3829), 7 states have internal predecessors, (3829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:55,459 INFO L175 Difference]: Start difference. First operand has 114 places, 120 transitions, 308 flow. Second operand 6 states and 1869 transitions. [2023-08-25 21:40:55,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 359 transitions, 1543 flow [2023-08-25 21:40:55,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 359 transitions, 1509 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 21:40:55,545 INFO L231 Difference]: Finished difference. Result has 122 places, 128 transitions, 362 flow [2023-08-25 21:40:55,546 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=362, PETRI_PLACES=122, PETRI_TRANSITIONS=128} [2023-08-25 21:40:55,549 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 0 predicate places. [2023-08-25 21:40:55,550 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 128 transitions, 362 flow [2023-08-25 21:40:55,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 265.6666666666667) internal successors, (1594), 6 states have internal predecessors, (1594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:55,551 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:40:55,551 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:40:55,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 21:40:55,551 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2023-08-25 21:40:55,552 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:40:55,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1224290978, now seen corresponding path program 1 times [2023-08-25 21:40:55,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:40:55,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782841516] [2023-08-25 21:40:55,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:40:55,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:40:55,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:40:55,583 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 21:40:55,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:40:55,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782841516] [2023-08-25 21:40:55,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782841516] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:40:55,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:40:55,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:40:55,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438813338] [2023-08-25 21:40:55,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:40:55,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:40:55,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:40:55,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:40:55,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:40:55,590 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 547 [2023-08-25 21:40:55,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 128 transitions, 362 flow. Second operand has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:55,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:40:55,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 547 [2023-08-25 21:40:55,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:40:58,452 INFO L124 PetriNetUnfolderBase]: 17479/38051 cut-off events. [2023-08-25 21:40:58,452 INFO L125 PetriNetUnfolderBase]: For 4701/4872 co-relation queries the response was YES. [2023-08-25 21:40:58,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74435 conditions, 38051 events. 17479/38051 cut-off events. For 4701/4872 co-relation queries the response was YES. Maximal size of possible extension queue 831. Compared 375184 event pairs, 3190 based on Foata normal form. 0/31142 useless extension candidates. Maximal degree in co-relation 74424. Up to 27464 conditions per place. [2023-08-25 21:40:58,668 INFO L140 encePairwiseOnDemand]: 540/547 looper letters, 102 selfloop transitions, 2 changer transitions 0/158 dead transitions. [2023-08-25 21:40:58,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 158 transitions, 645 flow [2023-08-25 21:40:58,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:40:58,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:40:58,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 907 transitions. [2023-08-25 21:40:58,671 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5527117611212675 [2023-08-25 21:40:58,671 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 907 transitions. [2023-08-25 21:40:58,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 907 transitions. [2023-08-25 21:40:58,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:40:58,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 907 transitions. [2023-08-25 21:40:58,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:58,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:58,678 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:58,678 INFO L175 Difference]: Start difference. First operand has 122 places, 128 transitions, 362 flow. Second operand 3 states and 907 transitions. [2023-08-25 21:40:58,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 158 transitions, 645 flow [2023-08-25 21:40:58,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 158 transitions, 645 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 21:40:58,688 INFO L231 Difference]: Finished difference. Result has 120 places, 125 transitions, 366 flow [2023-08-25 21:40:58,688 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=366, PETRI_PLACES=120, PETRI_TRANSITIONS=125} [2023-08-25 21:40:58,690 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, -2 predicate places. [2023-08-25 21:40:58,691 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 125 transitions, 366 flow [2023-08-25 21:40:58,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:58,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:40:58,691 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:40:58,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 21:40:58,692 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err12ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2023-08-25 21:40:58,692 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:40:58,692 INFO L85 PathProgramCache]: Analyzing trace with hash -277084686, now seen corresponding path program 1 times [2023-08-25 21:40:58,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:40:58,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285610368] [2023-08-25 21:40:58,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:40:58,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:40:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:40:58,845 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 21:40:58,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:40:58,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285610368] [2023-08-25 21:40:58,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285610368] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:40:58,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:40:58,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:40:58,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927596550] [2023-08-25 21:40:58,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:40:58,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:40:58,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:40:58,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:40:58,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:40:58,848 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 547 [2023-08-25 21:40:58,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 125 transitions, 366 flow. Second operand has 3 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:40:58,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:40:58,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 547 [2023-08-25 21:40:58,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:41:02,362 INFO L124 PetriNetUnfolderBase]: 22038/48354 cut-off events. [2023-08-25 21:41:02,363 INFO L125 PetriNetUnfolderBase]: For 4697/5018 co-relation queries the response was YES. [2023-08-25 21:41:02,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95254 conditions, 48354 events. 22038/48354 cut-off events. For 4697/5018 co-relation queries the response was YES. Maximal size of possible extension queue 1152. Compared 494563 event pairs, 8741 based on Foata normal form. 0/39972 useless extension candidates. Maximal degree in co-relation 95242. Up to 26619 conditions per place. [2023-08-25 21:41:02,825 INFO L140 encePairwiseOnDemand]: 543/547 looper letters, 121 selfloop transitions, 2 changer transitions 0/179 dead transitions. [2023-08-25 21:41:02,825 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 179 transitions, 756 flow [2023-08-25 21:41:02,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:41:02,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:41:02,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 923 transitions. [2023-08-25 21:41:02,830 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5624619134673979 [2023-08-25 21:41:02,830 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 923 transitions. [2023-08-25 21:41:02,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 923 transitions. [2023-08-25 21:41:02,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:41:02,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 923 transitions. [2023-08-25 21:41:02,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 307.6666666666667) internal successors, (923), 3 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:02,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:02,839 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:02,839 INFO L175 Difference]: Start difference. First operand has 120 places, 125 transitions, 366 flow. Second operand 3 states and 923 transitions. [2023-08-25 21:41:02,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 179 transitions, 756 flow [2023-08-25 21:41:02,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 179 transitions, 756 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 21:41:02,855 INFO L231 Difference]: Finished difference. Result has 123 places, 125 transitions, 375 flow [2023-08-25 21:41:02,855 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=375, PETRI_PLACES=123, PETRI_TRANSITIONS=125} [2023-08-25 21:41:02,856 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 1 predicate places. [2023-08-25 21:41:02,856 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 125 transitions, 375 flow [2023-08-25 21:41:02,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:02,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:41:02,857 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:41:02,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 21:41:02,857 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2023-08-25 21:41:02,857 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:41:02,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1510484137, now seen corresponding path program 1 times [2023-08-25 21:41:02,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:41:02,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036973582] [2023-08-25 21:41:02,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:41:02,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:41:02,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:41:02,899 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 21:41:02,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:41:02,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036973582] [2023-08-25 21:41:02,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036973582] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:41:02,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:41:02,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:41:02,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686411588] [2023-08-25 21:41:02,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:41:02,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:41:02,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:41:02,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:41:02,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:41:02,902 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 547 [2023-08-25 21:41:02,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 125 transitions, 375 flow. Second operand has 3 states, 3 states have (on average 286.0) internal successors, (858), 3 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:02,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:41:02,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 547 [2023-08-25 21:41:02,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:41:08,896 INFO L124 PetriNetUnfolderBase]: 35218/76944 cut-off events. [2023-08-25 21:41:08,896 INFO L125 PetriNetUnfolderBase]: For 11304/11977 co-relation queries the response was YES. [2023-08-25 21:41:09,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154871 conditions, 76944 events. 35218/76944 cut-off events. For 11304/11977 co-relation queries the response was YES. Maximal size of possible extension queue 1780. Compared 856897 event pairs, 13721 based on Foata normal form. 0/63715 useless extension candidates. Maximal degree in co-relation 154857. Up to 31746 conditions per place. [2023-08-25 21:41:09,341 INFO L140 encePairwiseOnDemand]: 542/547 looper letters, 124 selfloop transitions, 4 changer transitions 0/186 dead transitions. [2023-08-25 21:41:09,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 186 transitions, 804 flow [2023-08-25 21:41:09,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:41:09,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:41:09,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 955 transitions. [2023-08-25 21:41:09,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5819622181596588 [2023-08-25 21:41:09,344 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 955 transitions. [2023-08-25 21:41:09,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 955 transitions. [2023-08-25 21:41:09,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:41:09,344 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 955 transitions. [2023-08-25 21:41:09,346 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 21:41:09,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:09,349 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:09,349 INFO L175 Difference]: Start difference. First operand has 123 places, 125 transitions, 375 flow. Second operand 3 states and 955 transitions. [2023-08-25 21:41:09,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 186 transitions, 804 flow [2023-08-25 21:41:09,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 186 transitions, 802 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 21:41:09,367 INFO L231 Difference]: Finished difference. Result has 126 places, 129 transitions, 407 flow [2023-08-25 21:41:09,367 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=373, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=407, PETRI_PLACES=126, PETRI_TRANSITIONS=129} [2023-08-25 21:41:09,368 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 4 predicate places. [2023-08-25 21:41:09,368 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 129 transitions, 407 flow [2023-08-25 21:41:09,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.0) internal successors, (858), 3 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:09,368 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:41:09,369 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:41:09,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 21:41:09,369 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2023-08-25 21:41:09,369 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:41:09,369 INFO L85 PathProgramCache]: Analyzing trace with hash 419675062, now seen corresponding path program 1 times [2023-08-25 21:41:09,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:41:09,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018295789] [2023-08-25 21:41:09,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:41:09,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:41:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:41:09,400 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 21:41:09,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:41:09,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018295789] [2023-08-25 21:41:09,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018295789] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:41:09,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:41:09,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 21:41:09,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833654446] [2023-08-25 21:41:09,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:41:09,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:41:09,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:41:09,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:41:09,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:41:09,403 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 547 [2023-08-25 21:41:09,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 129 transitions, 407 flow. Second operand has 3 states, 3 states have (on average 282.6666666666667) internal successors, (848), 3 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:09,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:41:09,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 547 [2023-08-25 21:41:09,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:41:15,730 INFO L124 PetriNetUnfolderBase]: 32641/73311 cut-off events. [2023-08-25 21:41:15,730 INFO L125 PetriNetUnfolderBase]: For 14785/15402 co-relation queries the response was YES. [2023-08-25 21:41:16,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153524 conditions, 73311 events. 32641/73311 cut-off events. For 14785/15402 co-relation queries the response was YES. Maximal size of possible extension queue 1731. Compared 830765 event pairs, 21504 based on Foata normal form. 1335/64395 useless extension candidates. Maximal degree in co-relation 153509. Up to 51284 conditions per place. [2023-08-25 21:41:16,406 INFO L140 encePairwiseOnDemand]: 544/547 looper letters, 101 selfloop transitions, 3 changer transitions 0/166 dead transitions. [2023-08-25 21:41:16,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 166 transitions, 732 flow [2023-08-25 21:41:16,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:41:16,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:41:16,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 921 transitions. [2023-08-25 21:41:16,409 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5612431444241316 [2023-08-25 21:41:16,409 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 921 transitions. [2023-08-25 21:41:16,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 921 transitions. [2023-08-25 21:41:16,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:41:16,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 921 transitions. [2023-08-25 21:41:16,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:16,413 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:16,414 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:16,414 INFO L175 Difference]: Start difference. First operand has 126 places, 129 transitions, 407 flow. Second operand 3 states and 921 transitions. [2023-08-25 21:41:16,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 166 transitions, 732 flow [2023-08-25 21:41:16,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 166 transitions, 720 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 21:41:16,473 INFO L231 Difference]: Finished difference. Result has 127 places, 131 transitions, 422 flow [2023-08-25 21:41:16,474 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=422, PETRI_PLACES=127, PETRI_TRANSITIONS=131} [2023-08-25 21:41:16,474 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 5 predicate places. [2023-08-25 21:41:16,474 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 131 transitions, 422 flow [2023-08-25 21:41:16,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 282.6666666666667) internal successors, (848), 3 states have internal predecessors, (848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:16,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:41:16,475 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:41:16,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 21:41:16,475 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t2Err9ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2023-08-25 21:41:16,475 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:41:16,475 INFO L85 PathProgramCache]: Analyzing trace with hash 419633102, now seen corresponding path program 1 times [2023-08-25 21:41:16,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:41:16,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241804496] [2023-08-25 21:41:16,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:41:16,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:41:16,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:41:16,522 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 21:41:16,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:41:16,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241804496] [2023-08-25 21:41:16,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241804496] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:41:16,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:41:16,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:41:16,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177016257] [2023-08-25 21:41:16,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:41:16,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:41:16,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:41:16,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:41:16,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:41:16,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 547 [2023-08-25 21:41:16,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 131 transitions, 422 flow. Second operand has 3 states, 3 states have (on average 286.0) internal successors, (858), 3 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:16,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:41:16,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 547 [2023-08-25 21:41:16,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:41:25,287 INFO L124 PetriNetUnfolderBase]: 45793/104059 cut-off events. [2023-08-25 21:41:25,287 INFO L125 PetriNetUnfolderBase]: For 22911/23799 co-relation queries the response was YES. [2023-08-25 21:41:25,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217872 conditions, 104059 events. 45793/104059 cut-off events. For 22911/23799 co-relation queries the response was YES. Maximal size of possible extension queue 1972. Compared 1205422 event pairs, 24107 based on Foata normal form. 0/86926 useless extension candidates. Maximal degree in co-relation 217856. Up to 51516 conditions per place. [2023-08-25 21:41:25,975 INFO L140 encePairwiseOnDemand]: 543/547 looper letters, 116 selfloop transitions, 3 changer transitions 0/180 dead transitions. [2023-08-25 21:41:25,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 180 transitions, 807 flow [2023-08-25 21:41:25,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:41:25,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:41:25,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 941 transitions. [2023-08-25 21:41:25,977 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5734308348567947 [2023-08-25 21:41:25,978 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 941 transitions. [2023-08-25 21:41:25,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 941 transitions. [2023-08-25 21:41:25,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:41:25,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 941 transitions. [2023-08-25 21:41:25,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 313.6666666666667) internal successors, (941), 3 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:25,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:25,983 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:25,983 INFO L175 Difference]: Start difference. First operand has 127 places, 131 transitions, 422 flow. Second operand 3 states and 941 transitions. [2023-08-25 21:41:25,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 180 transitions, 807 flow [2023-08-25 21:41:26,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 180 transitions, 804 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 21:41:26,280 INFO L231 Difference]: Finished difference. Result has 129 places, 132 transitions, 434 flow [2023-08-25 21:41:26,281 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=434, PETRI_PLACES=129, PETRI_TRANSITIONS=132} [2023-08-25 21:41:26,281 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 7 predicate places. [2023-08-25 21:41:26,281 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 132 transitions, 434 flow [2023-08-25 21:41:26,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.0) internal successors, (858), 3 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:26,282 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:41:26,282 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:41:26,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 21:41:26,282 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err12ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2023-08-25 21:41:26,283 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:41:26,283 INFO L85 PathProgramCache]: Analyzing trace with hash -2318903, now seen corresponding path program 1 times [2023-08-25 21:41:26,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:41:26,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996098794] [2023-08-25 21:41:26,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:41:26,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:41:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:41:26,341 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 21:41:26,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:41:26,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996098794] [2023-08-25 21:41:26,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996098794] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:41:26,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:41:26,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 21:41:26,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538178430] [2023-08-25 21:41:26,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:41:26,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 21:41:26,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:41:26,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 21:41:26,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 21:41:26,343 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 273 out of 547 [2023-08-25 21:41:26,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 132 transitions, 434 flow. Second operand has 4 states, 4 states have (on average 275.5) internal successors, (1102), 4 states have internal predecessors, (1102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:26,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:41:26,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 273 of 547 [2023-08-25 21:41:26,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:41:33,504 INFO L124 PetriNetUnfolderBase]: 35295/79479 cut-off events. [2023-08-25 21:41:33,504 INFO L125 PetriNetUnfolderBase]: For 21187/21664 co-relation queries the response was YES. [2023-08-25 21:41:33,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172058 conditions, 79479 events. 35295/79479 cut-off events. For 21187/21664 co-relation queries the response was YES. Maximal size of possible extension queue 1560. Compared 881979 event pairs, 22785 based on Foata normal form. 0/67815 useless extension candidates. Maximal degree in co-relation 172041. Up to 56080 conditions per place. [2023-08-25 21:41:33,972 INFO L140 encePairwiseOnDemand]: 543/547 looper letters, 102 selfloop transitions, 3 changer transitions 0/165 dead transitions. [2023-08-25 21:41:33,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 165 transitions, 759 flow [2023-08-25 21:41:33,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 21:41:33,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 21:41:33,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1174 transitions. [2023-08-25 21:41:33,975 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5365630712979891 [2023-08-25 21:41:33,976 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1174 transitions. [2023-08-25 21:41:33,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1174 transitions. [2023-08-25 21:41:33,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:41:33,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1174 transitions. [2023-08-25 21:41:33,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 293.5) internal successors, (1174), 4 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:33,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 547.0) internal successors, (2735), 5 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:33,982 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 547.0) internal successors, (2735), 5 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:33,982 INFO L175 Difference]: Start difference. First operand has 129 places, 132 transitions, 434 flow. Second operand 4 states and 1174 transitions. [2023-08-25 21:41:33,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 165 transitions, 759 flow [2023-08-25 21:41:34,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 165 transitions, 755 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 21:41:34,082 INFO L231 Difference]: Finished difference. Result has 132 places, 133 transitions, 445 flow [2023-08-25 21:41:34,082 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=445, PETRI_PLACES=132, PETRI_TRANSITIONS=133} [2023-08-25 21:41:34,083 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 10 predicate places. [2023-08-25 21:41:34,083 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 133 transitions, 445 flow [2023-08-25 21:41:34,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 275.5) internal successors, (1102), 4 states have internal predecessors, (1102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:34,084 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:41:34,084 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:41:34,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 21:41:34,084 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2023-08-25 21:41:34,085 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:41:34,085 INFO L85 PathProgramCache]: Analyzing trace with hash 969704390, now seen corresponding path program 1 times [2023-08-25 21:41:34,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:41:34,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628156183] [2023-08-25 21:41:34,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:41:34,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:41:34,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:41:34,128 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 21:41:34,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:41:34,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628156183] [2023-08-25 21:41:34,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628156183] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:41:34,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:41:34,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 21:41:34,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31854677] [2023-08-25 21:41:34,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:41:34,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:41:34,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:41:34,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:41:34,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:41:34,131 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 547 [2023-08-25 21:41:34,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 133 transitions, 445 flow. Second operand has 3 states, 3 states have (on average 281.0) internal successors, (843), 3 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:34,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:41:34,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 547 [2023-08-25 21:41:34,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:41:41,280 INFO L124 PetriNetUnfolderBase]: 36163/82471 cut-off events. [2023-08-25 21:41:41,280 INFO L125 PetriNetUnfolderBase]: For 24096/24772 co-relation queries the response was YES. [2023-08-25 21:41:41,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182064 conditions, 82471 events. 36163/82471 cut-off events. For 24096/24772 co-relation queries the response was YES. Maximal size of possible extension queue 1558. Compared 919505 event pairs, 20018 based on Foata normal form. 0/70122 useless extension candidates. Maximal degree in co-relation 182046. Up to 59066 conditions per place. [2023-08-25 21:41:42,106 INFO L140 encePairwiseOnDemand]: 543/547 looper letters, 122 selfloop transitions, 3 changer transitions 0/187 dead transitions. [2023-08-25 21:41:42,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 187 transitions, 875 flow [2023-08-25 21:41:42,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:41:42,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:41:42,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 935 transitions. [2023-08-25 21:41:42,109 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5697745277269958 [2023-08-25 21:41:42,109 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 935 transitions. [2023-08-25 21:41:42,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 935 transitions. [2023-08-25 21:41:42,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:41:42,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 935 transitions. [2023-08-25 21:41:42,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 311.6666666666667) internal successors, (935), 3 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:42,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:42,114 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:42,114 INFO L175 Difference]: Start difference. First operand has 132 places, 133 transitions, 445 flow. Second operand 3 states and 935 transitions. [2023-08-25 21:41:42,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 187 transitions, 875 flow [2023-08-25 21:41:42,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 187 transitions, 869 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 21:41:42,239 INFO L231 Difference]: Finished difference. Result has 133 places, 135 transitions, 460 flow [2023-08-25 21:41:42,239 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=441, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=460, PETRI_PLACES=133, PETRI_TRANSITIONS=135} [2023-08-25 21:41:42,239 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 11 predicate places. [2023-08-25 21:41:42,240 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 135 transitions, 460 flow [2023-08-25 21:41:42,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 281.0) internal successors, (843), 3 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:42,241 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:41:42,241 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 21:41:42,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 21:41:42,241 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2023-08-25 21:41:42,241 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:41:42,241 INFO L85 PathProgramCache]: Analyzing trace with hash -407971825, now seen corresponding path program 1 times [2023-08-25 21:41:42,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:41:42,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336581675] [2023-08-25 21:41:42,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:41:42,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:41:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:41:42,340 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 21:41:42,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:41:42,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336581675] [2023-08-25 21:41:42,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336581675] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:41:42,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:41:42,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 21:41:42,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499670277] [2023-08-25 21:41:42,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:41:42,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 21:41:42,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:41:42,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 21:41:42,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 21:41:42,343 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 547 [2023-08-25 21:41:42,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 135 transitions, 460 flow. Second operand has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:41:42,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:41:42,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 547 [2023-08-25 21:41:42,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:42:02,322 INFO L124 PetriNetUnfolderBase]: 128293/220460 cut-off events. [2023-08-25 21:42:02,322 INFO L125 PetriNetUnfolderBase]: For 141394/141394 co-relation queries the response was YES. [2023-08-25 21:42:03,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 568217 conditions, 220460 events. 128293/220460 cut-off events. For 141394/141394 co-relation queries the response was YES. Maximal size of possible extension queue 2964. Compared 2089314 event pairs, 75120 based on Foata normal form. 0/194805 useless extension candidates. Maximal degree in co-relation 568198. Up to 182453 conditions per place. [2023-08-25 21:42:03,730 INFO L140 encePairwiseOnDemand]: 538/547 looper letters, 126 selfloop transitions, 15 changer transitions 0/181 dead transitions. [2023-08-25 21:42:03,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 181 transitions, 912 flow [2023-08-25 21:42:03,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 21:42:03,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 21:42:03,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 872 transitions. [2023-08-25 21:42:03,733 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5313833028641073 [2023-08-25 21:42:03,733 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 872 transitions. [2023-08-25 21:42:03,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 872 transitions. [2023-08-25 21:42:03,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:42:03,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 872 transitions. [2023-08-25 21:42:03,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 290.6666666666667) internal successors, (872), 3 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:42:03,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:42:03,737 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 547.0) internal successors, (2188), 4 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:42:03,738 INFO L175 Difference]: Start difference. First operand has 133 places, 135 transitions, 460 flow. Second operand 3 states and 872 transitions. [2023-08-25 21:42:03,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 181 transitions, 912 flow [2023-08-25 21:42:04,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 181 transitions, 909 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 21:42:04,917 INFO L231 Difference]: Finished difference. Result has 136 places, 145 transitions, 581 flow [2023-08-25 21:42:04,918 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=581, PETRI_PLACES=136, PETRI_TRANSITIONS=145} [2023-08-25 21:42:04,918 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 14 predicate places. [2023-08-25 21:42:04,918 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 145 transitions, 581 flow [2023-08-25 21:42:04,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:42:04,919 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:42:04,919 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] [2023-08-25 21:42:04,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 21:42:04,919 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2023-08-25 21:42:04,919 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:42:04,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1348822574, now seen corresponding path program 1 times [2023-08-25 21:42:04,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:42:04,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559990570] [2023-08-25 21:42:04,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:42:04,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:42:04,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:42:05,225 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 21:42:05,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:42:05,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559990570] [2023-08-25 21:42:05,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559990570] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:42:05,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:42:05,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 21:42:05,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915226978] [2023-08-25 21:42:05,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:42:05,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 21:42:05,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:42:05,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 21:42:05,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 21:42:05,228 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 547 [2023-08-25 21:42:05,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 145 transitions, 581 flow. Second operand has 5 states, 5 states have (on average 252.2) internal successors, (1261), 5 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:42:05,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:42:05,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 547 [2023-08-25 21:42:05,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:42:26,180 INFO L124 PetriNetUnfolderBase]: 127284/218439 cut-off events. [2023-08-25 21:42:26,180 INFO L125 PetriNetUnfolderBase]: For 227608/227608 co-relation queries the response was YES. [2023-08-25 21:42:26,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 618292 conditions, 218439 events. 127284/218439 cut-off events. For 227608/227608 co-relation queries the response was YES. Maximal size of possible extension queue 2893. Compared 2063709 event pairs, 71153 based on Foata normal form. 1611/196184 useless extension candidates. Maximal degree in co-relation 618272. Up to 172425 conditions per place. [2023-08-25 21:42:27,675 INFO L140 encePairwiseOnDemand]: 541/547 looper letters, 138 selfloop transitions, 11 changer transitions 0/189 dead transitions. [2023-08-25 21:42:27,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 189 transitions, 1057 flow [2023-08-25 21:42:27,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 21:42:27,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 21:42:27,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1103 transitions. [2023-08-25 21:42:27,678 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5041133455210237 [2023-08-25 21:42:27,678 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1103 transitions. [2023-08-25 21:42:27,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1103 transitions. [2023-08-25 21:42:27,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:42:27,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1103 transitions. [2023-08-25 21:42:27,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 275.75) internal successors, (1103), 4 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:42:27,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 547.0) internal successors, (2735), 5 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:42:27,683 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 547.0) internal successors, (2735), 5 states have internal predecessors, (2735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:42:27,683 INFO L175 Difference]: Start difference. First operand has 136 places, 145 transitions, 581 flow. Second operand 4 states and 1103 transitions. [2023-08-25 21:42:27,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 189 transitions, 1057 flow [2023-08-25 21:42:29,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 189 transitions, 1025 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 21:42:29,692 INFO L231 Difference]: Finished difference. Result has 139 places, 148 transitions, 614 flow [2023-08-25 21:42:29,693 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=551, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=614, PETRI_PLACES=139, PETRI_TRANSITIONS=148} [2023-08-25 21:42:29,693 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 17 predicate places. [2023-08-25 21:42:29,693 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 148 transitions, 614 flow [2023-08-25 21:42:29,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 252.2) internal successors, (1261), 5 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:42:29,693 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:42:29,694 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] [2023-08-25 21:42:29,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 21:42:29,694 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2023-08-25 21:42:29,694 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:42:29,694 INFO L85 PathProgramCache]: Analyzing trace with hash -11009094, now seen corresponding path program 1 times [2023-08-25 21:42:29,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:42:29,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182551754] [2023-08-25 21:42:29,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:42:29,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:42:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:42:29,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:42:29,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:42:29,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182551754] [2023-08-25 21:42:29,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182551754] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-25 21:42:29,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675688805] [2023-08-25 21:42:29,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:42:29,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-25 21:42:29,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 21:42:29,749 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-25 21:42:29,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-25 21:42:29,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:42:29,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 3 conjunts are in the unsatisfiable core [2023-08-25 21:42:29,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-25 21:42:29,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:42:29,925 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-25 21:42:29,954 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 21:42:29,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675688805] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-25 21:42:29,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-25 21:42:29,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-08-25 21:42:29,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54352502] [2023-08-25 21:42:29,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-25 21:42:29,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-08-25 21:42:29,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:42:29,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-08-25 21:42:29,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-08-25 21:42:29,960 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 547 [2023-08-25 21:42:29,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 148 transitions, 614 flow. Second operand has 7 states, 7 states have (on average 281.0) internal successors, (1967), 7 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:42:29,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:42:29,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 547 [2023-08-25 21:42:29,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:42:56,843 INFO L124 PetriNetUnfolderBase]: 123279/282251 cut-off events. [2023-08-25 21:42:56,843 INFO L125 PetriNetUnfolderBase]: For 258165/294826 co-relation queries the response was YES. [2023-08-25 21:42:58,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 692111 conditions, 282251 events. 123279/282251 cut-off events. For 258165/294826 co-relation queries the response was YES. Maximal size of possible extension queue 4055. Compared 3673130 event pairs, 26118 based on Foata normal form. 3981/250755 useless extension candidates. Maximal degree in co-relation 692089. Up to 81756 conditions per place. [2023-08-25 21:42:59,187 INFO L140 encePairwiseOnDemand]: 542/547 looper letters, 285 selfloop transitions, 10 changer transitions 0/368 dead transitions. [2023-08-25 21:42:59,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 368 transitions, 2096 flow [2023-08-25 21:42:59,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 21:42:59,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 21:42:59,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1893 transitions. [2023-08-25 21:42:59,191 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.576782449725777 [2023-08-25 21:42:59,191 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1893 transitions. [2023-08-25 21:42:59,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1893 transitions. [2023-08-25 21:42:59,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:42:59,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1893 transitions. [2023-08-25 21:42:59,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 315.5) internal successors, (1893), 6 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:42:59,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 547.0) internal successors, (3829), 7 states have internal predecessors, (3829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:42:59,198 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 547.0) internal successors, (3829), 7 states have internal predecessors, (3829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:42:59,198 INFO L175 Difference]: Start difference. First operand has 139 places, 148 transitions, 614 flow. Second operand 6 states and 1893 transitions. [2023-08-25 21:42:59,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 368 transitions, 2096 flow [2023-08-25 21:43:01,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 368 transitions, 2095 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 21:43:01,389 INFO L231 Difference]: Finished difference. Result has 147 places, 153 transitions, 676 flow [2023-08-25 21:43:01,389 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=547, PETRI_DIFFERENCE_MINUEND_FLOW=613, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=676, PETRI_PLACES=147, PETRI_TRANSITIONS=153} [2023-08-25 21:43:01,389 INFO L281 CegarLoopForPetriNet]: 122 programPoint places, 25 predicate places. [2023-08-25 21:43:01,389 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 153 transitions, 676 flow [2023-08-25 21:43:01,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 281.0) internal successors, (1967), 7 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:43:01,390 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 21:43:01,390 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] [2023-08-25 21:43:01,397 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-08-25 21:43:01,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-08-25 21:43:01,591 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 63 more)] === [2023-08-25 21:43:01,591 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 21:43:01,591 INFO L85 PathProgramCache]: Analyzing trace with hash -407621640, now seen corresponding path program 1 times [2023-08-25 21:43:01,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 21:43:01,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920576020] [2023-08-25 21:43:01,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 21:43:01,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 21:43:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 21:43:02,056 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 21:43:02,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 21:43:02,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920576020] [2023-08-25 21:43:02,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920576020] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 21:43:02,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 21:43:02,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 21:43:02,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082627217] [2023-08-25 21:43:02,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 21:43:02,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-25 21:43:02,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 21:43:02,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-25 21:43:02,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-08-25 21:43:02,059 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 547 [2023-08-25 21:43:02,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 153 transitions, 676 flow. Second operand has 8 states, 8 states have (on average 262.375) internal successors, (2099), 8 states have internal predecessors, (2099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:43:02,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 21:43:02,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 547 [2023-08-25 21:43:02,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 21:43:51,563 INFO L124 PetriNetUnfolderBase]: 264912/444012 cut-off events. [2023-08-25 21:43:51,563 INFO L125 PetriNetUnfolderBase]: For 460883/460883 co-relation queries the response was YES. [2023-08-25 21:43:53,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1339037 conditions, 444012 events. 264912/444012 cut-off events. For 460883/460883 co-relation queries the response was YES. Maximal size of possible extension queue 5289. Compared 4556106 event pairs, 54587 based on Foata normal form. 11013/408465 useless extension candidates. Maximal degree in co-relation 1339012. Up to 146356 conditions per place. [2023-08-25 21:43:55,065 INFO L140 encePairwiseOnDemand]: 541/547 looper letters, 404 selfloop transitions, 15 changer transitions 0/461 dead transitions. [2023-08-25 21:43:55,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 461 transitions, 2900 flow [2023-08-25 21:43:55,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 21:43:55,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 21:43:55,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2098 transitions. [2023-08-25 21:43:55,069 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5479237398798642 [2023-08-25 21:43:55,069 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2098 transitions. [2023-08-25 21:43:55,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2098 transitions. [2023-08-25 21:43:55,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 21:43:55,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2098 transitions. [2023-08-25 21:43:55,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 299.7142857142857) internal successors, (2098), 7 states have internal predecessors, (2098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:43:55,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 547.0) internal successors, (4376), 8 states have internal predecessors, (4376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:43:55,078 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 547.0) internal successors, (4376), 8 states have internal predecessors, (4376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 21:43:55,078 INFO L175 Difference]: Start difference. First operand has 147 places, 153 transitions, 676 flow. Second operand 7 states and 2098 transitions. [2023-08-25 21:43:55,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 461 transitions, 2900 flow