/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/goblint-regression/04-mutex_46-escape_nr.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 17:17:21,109 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:17:21,248 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 17:17:21,252 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:17:21,253 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:17:21,276 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:17:21,277 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:17:21,277 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:17:21,277 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:17:21,278 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:17:21,278 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:17:21,278 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:17:21,279 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:17:21,279 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:17:21,279 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:17:21,280 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:17:21,280 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:17:21,280 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:17:21,281 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:17:21,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:17:21,281 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:17:21,285 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:17:21,285 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:17:21,285 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:17:21,286 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:17:21,286 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:17:21,286 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:17:21,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:17:21,287 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:17:21,287 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:17:21,288 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:17:21,288 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:17:21,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:17:21,288 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:17:21,288 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:17:21,289 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:17:21,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:17:21,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:17:21,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:17:21,629 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:17:21,630 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:17:21,631 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_46-escape_nr.i [2023-08-25 17:17:22,816 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:17:23,108 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:17:23,109 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_46-escape_nr.i [2023-08-25 17:17:23,131 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1f93fae7/4c2ddf874fbb4826a9d39e45925444df/FLAG779d466a7 [2023-08-25 17:17:23,146 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1f93fae7/4c2ddf874fbb4826a9d39e45925444df [2023-08-25 17:17:23,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:17:23,152 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:17:23,154 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:17:23,154 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:17:23,157 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:17:23,158 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:17:23" (1/1) ... [2023-08-25 17:17:23,159 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d784e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:23, skipping insertion in model container [2023-08-25 17:17:23,159 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:17:23" (1/1) ... [2023-08-25 17:17:23,213 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:17:23,610 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:17:23,622 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:17:23,646 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [246] [2023-08-25 17:17:23,648 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [246] [2023-08-25 17:17:23,656 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [738] [2023-08-25 17:17:23,679 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:17:23,727 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:17:23,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:23 WrapperNode [2023-08-25 17:17:23,727 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:17:23,728 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:17:23,728 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:17:23,728 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:17:23,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:23" (1/1) ... [2023-08-25 17:17:23,753 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:23" (1/1) ... [2023-08-25 17:17:23,774 INFO L138 Inliner]: procedures = 263, calls = 27, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 85 [2023-08-25 17:17:23,775 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:17:23,775 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:17:23,775 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:17:23,775 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:17:23,784 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:23" (1/1) ... [2023-08-25 17:17:23,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:23" (1/1) ... [2023-08-25 17:17:23,789 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:23" (1/1) ... [2023-08-25 17:17:23,789 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:23" (1/1) ... [2023-08-25 17:17:23,800 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:23" (1/1) ... [2023-08-25 17:17:23,802 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:23" (1/1) ... [2023-08-25 17:17:23,803 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:23" (1/1) ... [2023-08-25 17:17:23,804 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:23" (1/1) ... [2023-08-25 17:17:23,807 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:17:23,808 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:17:23,808 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:17:23,808 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:17:23,809 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:23" (1/1) ... [2023-08-25 17:17:23,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:17:23,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:17:23,850 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 17:17:23,875 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 17:17:23,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:17:23,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:17:23,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 17:17:23,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:17:23,891 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 17:17:23,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 17:17:23,892 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 17:17:23,892 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 17:17:23,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 17:17:23,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:17:23,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:17:23,893 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 17:17:24,000 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:17:24,002 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:17:24,294 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:17:24,300 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:17:24,301 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 17:17:24,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:17:24 BoogieIcfgContainer [2023-08-25 17:17:24,304 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:17:24,307 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:17:24,307 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:17:24,310 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:17:24,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:17:23" (1/3) ... [2023-08-25 17:17:24,311 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a6e4cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:17:24, skipping insertion in model container [2023-08-25 17:17:24,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:17:23" (2/3) ... [2023-08-25 17:17:24,311 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a6e4cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:17:24, skipping insertion in model container [2023-08-25 17:17:24,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:17:24" (3/3) ... [2023-08-25 17:17:24,312 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_46-escape_nr.i [2023-08-25 17:17:24,360 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:17:24,360 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-08-25 17:17:24,361 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:17:24,443 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 17:17:24,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 114 transitions, 236 flow [2023-08-25 17:17:24,543 INFO L124 PetriNetUnfolderBase]: 1/113 cut-off events. [2023-08-25 17:17:24,543 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 17:17:24,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 113 events. 1/113 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 89 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 6. Up to 2 conditions per place. [2023-08-25 17:17:24,547 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 114 transitions, 236 flow [2023-08-25 17:17:24,553 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 97 transitions, 197 flow [2023-08-25 17:17:24,556 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:17:24,567 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 97 transitions, 197 flow [2023-08-25 17:17:24,569 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 97 transitions, 197 flow [2023-08-25 17:17:24,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 97 transitions, 197 flow [2023-08-25 17:17:24,602 INFO L124 PetriNetUnfolderBase]: 0/97 cut-off events. [2023-08-25 17:17:24,603 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:17:24,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 97 events. 0/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-25 17:17:24,605 INFO L119 LiptonReduction]: Number of co-enabled transitions 1612 [2023-08-25 17:17:27,493 INFO L134 LiptonReduction]: Checked pairs total: 11859 [2023-08-25 17:17:27,494 INFO L136 LiptonReduction]: Total number of compositions: 61 [2023-08-25 17:17:27,504 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:17:27,510 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;@11053f77, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:17:27,510 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-08-25 17:17:27,511 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:17:27,511 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 17:17:27,511 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:17:27,511 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:17:27,512 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 17:17:27,512 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 17:17:27,516 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:17:27,516 INFO L85 PathProgramCache]: Analyzing trace with hash 350, now seen corresponding path program 1 times [2023-08-25 17:17:27,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:17:27,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143725846] [2023-08-25 17:17:27,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:17:27,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:17:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:17:27,620 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 17:17:27,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:17:27,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143725846] [2023-08-25 17:17:27,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143725846] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:17:27,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:17:27,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 17:17:27,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688930863] [2023-08-25 17:17:27,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:17:27,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 17:17:27,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:17:27,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 17:17:27,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 17:17:27,649 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 175 [2023-08-25 17:17:27,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 42 transitions, 87 flow. Second operand has 2 states, 2 states have (on average 112.5) internal successors, (225), 2 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:27,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:17:27,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 175 [2023-08-25 17:17:27,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:17:27,703 INFO L124 PetriNetUnfolderBase]: 25/170 cut-off events. [2023-08-25 17:17:27,703 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:17:27,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 170 events. 25/170 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 644 event pairs, 25 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 228. Up to 63 conditions per place. [2023-08-25 17:17:27,706 INFO L140 encePairwiseOnDemand]: 174/175 looper letters, 12 selfloop transitions, 0 changer transitions 0/41 dead transitions. [2023-08-25 17:17:27,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 41 transitions, 109 flow [2023-08-25 17:17:27,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 17:17:27,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 17:17:27,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 237 transitions. [2023-08-25 17:17:27,717 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6771428571428572 [2023-08-25 17:17:27,717 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 237 transitions. [2023-08-25 17:17:27,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 237 transitions. [2023-08-25 17:17:27,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:17:27,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 237 transitions. [2023-08-25 17:17:27,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 118.5) internal successors, (237), 2 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:27,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:27,727 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:27,728 INFO L175 Difference]: Start difference. First operand has 46 places, 42 transitions, 87 flow. Second operand 2 states and 237 transitions. [2023-08-25 17:17:27,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 41 transitions, 109 flow [2023-08-25 17:17:27,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:17:27,732 INFO L231 Difference]: Finished difference. Result has 45 places, 41 transitions, 84 flow [2023-08-25 17:17:27,733 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=84, PETRI_PLACES=45, PETRI_TRANSITIONS=41} [2023-08-25 17:17:27,736 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2023-08-25 17:17:27,737 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 41 transitions, 84 flow [2023-08-25 17:17:27,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 112.5) internal successors, (225), 2 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:27,737 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:17:27,737 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:17:27,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:17:27,737 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 17:17:27,738 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:17:27,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1645902891, now seen corresponding path program 1 times [2023-08-25 17:17:27,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:17:27,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160587363] [2023-08-25 17:17:27,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:17:27,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:17:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:17:28,232 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 17:17:28,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:17:28,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160587363] [2023-08-25 17:17:28,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160587363] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:17:28,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:17:28,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:17:28,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725207419] [2023-08-25 17:17:28,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:17:28,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:17:28,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:17:28,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:17:28,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:17:28,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 175 [2023-08-25 17:17:28,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 84 flow. Second operand has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:28,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:17:28,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 175 [2023-08-25 17:17:28,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:17:28,712 INFO L124 PetriNetUnfolderBase]: 399/861 cut-off events. [2023-08-25 17:17:28,712 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:17:28,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1709 conditions, 861 events. 399/861 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4022 event pairs, 198 based on Foata normal form. 0/763 useless extension candidates. Maximal degree in co-relation 1706. Up to 597 conditions per place. [2023-08-25 17:17:28,718 INFO L140 encePairwiseOnDemand]: 164/175 looper letters, 107 selfloop transitions, 22 changer transitions 0/131 dead transitions. [2023-08-25 17:17:28,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 131 transitions, 522 flow [2023-08-25 17:17:28,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:17:28,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:17:28,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 568 transitions. [2023-08-25 17:17:28,722 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.540952380952381 [2023-08-25 17:17:28,722 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 568 transitions. [2023-08-25 17:17:28,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 568 transitions. [2023-08-25 17:17:28,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:17:28,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 568 transitions. [2023-08-25 17:17:28,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.66666666666667) internal successors, (568), 6 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:28,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:28,730 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:28,730 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 84 flow. Second operand 6 states and 568 transitions. [2023-08-25 17:17:28,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 131 transitions, 522 flow [2023-08-25 17:17:28,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 131 transitions, 522 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:17:28,733 INFO L231 Difference]: Finished difference. Result has 55 places, 62 transitions, 234 flow [2023-08-25 17:17:28,733 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=234, PETRI_PLACES=55, PETRI_TRANSITIONS=62} [2023-08-25 17:17:28,734 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 9 predicate places. [2023-08-25 17:17:28,734 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 62 transitions, 234 flow [2023-08-25 17:17:28,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.5) internal successors, (447), 6 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:28,734 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:17:28,734 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:17:28,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:17:28,735 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 17:17:28,735 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:17:28,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1254070211, now seen corresponding path program 1 times [2023-08-25 17:17:28,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:17:28,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162717252] [2023-08-25 17:17:28,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:17:28,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:17:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:17:28,944 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 17:17:28,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:17:28,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162717252] [2023-08-25 17:17:28,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162717252] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:17:28,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:17:28,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:17:28,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681261233] [2023-08-25 17:17:28,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:17:28,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:17:28,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:17:28,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:17:28,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:17:28,947 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 175 [2023-08-25 17:17:28,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 62 transitions, 234 flow. Second operand has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:28,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:17:28,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 175 [2023-08-25 17:17:28,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:17:29,220 INFO L124 PetriNetUnfolderBase]: 387/856 cut-off events. [2023-08-25 17:17:29,220 INFO L125 PetriNetUnfolderBase]: For 371/371 co-relation queries the response was YES. [2023-08-25 17:17:29,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2123 conditions, 856 events. 387/856 cut-off events. For 371/371 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 4069 event pairs, 189 based on Foata normal form. 0/777 useless extension candidates. Maximal degree in co-relation 2115. Up to 645 conditions per place. [2023-08-25 17:17:29,226 INFO L140 encePairwiseOnDemand]: 163/175 looper letters, 78 selfloop transitions, 24 changer transitions 0/105 dead transitions. [2023-08-25 17:17:29,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 105 transitions, 548 flow [2023-08-25 17:17:29,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:17:29,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:17:29,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 478 transitions. [2023-08-25 17:17:29,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4552380952380952 [2023-08-25 17:17:29,229 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 478 transitions. [2023-08-25 17:17:29,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 478 transitions. [2023-08-25 17:17:29,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:17:29,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 478 transitions. [2023-08-25 17:17:29,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:29,233 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:29,234 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:29,234 INFO L175 Difference]: Start difference. First operand has 55 places, 62 transitions, 234 flow. Second operand 6 states and 478 transitions. [2023-08-25 17:17:29,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 105 transitions, 548 flow [2023-08-25 17:17:29,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 105 transitions, 548 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:17:29,240 INFO L231 Difference]: Finished difference. Result has 65 places, 81 transitions, 396 flow [2023-08-25 17:17:29,240 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=396, PETRI_PLACES=65, PETRI_TRANSITIONS=81} [2023-08-25 17:17:29,242 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 19 predicate places. [2023-08-25 17:17:29,242 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 81 transitions, 396 flow [2023-08-25 17:17:29,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:29,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:17:29,242 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:17:29,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 17:17:29,243 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 17:17:29,244 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:17:29,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1223338078, now seen corresponding path program 1 times [2023-08-25 17:17:29,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:17:29,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983388560] [2023-08-25 17:17:29,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:17:29,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:17:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:17:29,539 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 17:17:29,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:17:29,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983388560] [2023-08-25 17:17:29,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983388560] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:17:29,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:17:29,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:17:29,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355763447] [2023-08-25 17:17:29,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:17:29,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:17:29,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:17:29,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:17:29,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:17:29,544 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 175 [2023-08-25 17:17:29,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 81 transitions, 396 flow. Second operand has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:29,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:17:29,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 175 [2023-08-25 17:17:29,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:17:29,837 INFO L124 PetriNetUnfolderBase]: 505/1088 cut-off events. [2023-08-25 17:17:29,837 INFO L125 PetriNetUnfolderBase]: For 679/679 co-relation queries the response was YES. [2023-08-25 17:17:29,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3048 conditions, 1088 events. 505/1088 cut-off events. For 679/679 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5385 event pairs, 209 based on Foata normal form. 0/1007 useless extension candidates. Maximal degree in co-relation 3035. Up to 920 conditions per place. [2023-08-25 17:17:29,845 INFO L140 encePairwiseOnDemand]: 157/175 looper letters, 108 selfloop transitions, 62 changer transitions 4/176 dead transitions. [2023-08-25 17:17:29,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 176 transitions, 1080 flow [2023-08-25 17:17:29,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:17:29,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:17:29,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 554 transitions. [2023-08-25 17:17:29,848 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5276190476190477 [2023-08-25 17:17:29,848 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 554 transitions. [2023-08-25 17:17:29,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 554 transitions. [2023-08-25 17:17:29,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:17:29,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 554 transitions. [2023-08-25 17:17:29,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 92.33333333333333) internal successors, (554), 6 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:29,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:29,852 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:29,852 INFO L175 Difference]: Start difference. First operand has 65 places, 81 transitions, 396 flow. Second operand 6 states and 554 transitions. [2023-08-25 17:17:29,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 176 transitions, 1080 flow [2023-08-25 17:17:29,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 176 transitions, 1080 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:17:29,860 INFO L231 Difference]: Finished difference. Result has 74 places, 140 transitions, 870 flow [2023-08-25 17:17:29,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=870, PETRI_PLACES=74, PETRI_TRANSITIONS=140} [2023-08-25 17:17:29,861 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 28 predicate places. [2023-08-25 17:17:29,861 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 140 transitions, 870 flow [2023-08-25 17:17:29,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:29,861 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:17:29,862 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:17:29,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 17:17:29,862 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 17:17:29,862 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:17:29,862 INFO L85 PathProgramCache]: Analyzing trace with hash 553939840, now seen corresponding path program 1 times [2023-08-25 17:17:29,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:17:29,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743672156] [2023-08-25 17:17:29,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:17:29,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:17:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:17:30,064 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 17:17:30,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:17:30,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743672156] [2023-08-25 17:17:30,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743672156] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:17:30,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:17:30,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:17:30,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536871146] [2023-08-25 17:17:30,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:17:30,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:17:30,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:17:30,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:17:30,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:17:30,067 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 175 [2023-08-25 17:17:30,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 140 transitions, 870 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:30,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:17:30,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 175 [2023-08-25 17:17:30,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:17:30,377 INFO L124 PetriNetUnfolderBase]: 530/1152 cut-off events. [2023-08-25 17:17:30,377 INFO L125 PetriNetUnfolderBase]: For 1505/1507 co-relation queries the response was YES. [2023-08-25 17:17:30,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3981 conditions, 1152 events. 530/1152 cut-off events. For 1505/1507 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5972 event pairs, 165 based on Foata normal form. 0/1073 useless extension candidates. Maximal degree in co-relation 3963. Up to 973 conditions per place. [2023-08-25 17:17:30,387 INFO L140 encePairwiseOnDemand]: 160/175 looper letters, 149 selfloop transitions, 64 changer transitions 0/216 dead transitions. [2023-08-25 17:17:30,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 216 transitions, 1691 flow [2023-08-25 17:17:30,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:17:30,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:17:30,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 484 transitions. [2023-08-25 17:17:30,390 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46095238095238095 [2023-08-25 17:17:30,390 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 484 transitions. [2023-08-25 17:17:30,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 484 transitions. [2023-08-25 17:17:30,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:17:30,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 484 transitions. [2023-08-25 17:17:30,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 80.66666666666667) internal successors, (484), 6 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:30,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:30,394 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:30,394 INFO L175 Difference]: Start difference. First operand has 74 places, 140 transitions, 870 flow. Second operand 6 states and 484 transitions. [2023-08-25 17:17:30,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 216 transitions, 1691 flow [2023-08-25 17:17:30,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 216 transitions, 1627 flow, removed 32 selfloop flow, removed 0 redundant places. [2023-08-25 17:17:30,407 INFO L231 Difference]: Finished difference. Result has 84 places, 190 transitions, 1408 flow [2023-08-25 17:17:30,408 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1408, PETRI_PLACES=84, PETRI_TRANSITIONS=190} [2023-08-25 17:17:30,408 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 38 predicate places. [2023-08-25 17:17:30,408 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 190 transitions, 1408 flow [2023-08-25 17:17:30,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:30,409 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:17:30,409 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 17:17:30,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 17:17:30,409 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 17:17:30,410 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:17:30,410 INFO L85 PathProgramCache]: Analyzing trace with hash -527842, now seen corresponding path program 1 times [2023-08-25 17:17:30,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:17:30,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76095777] [2023-08-25 17:17:30,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:17:30,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:17:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:17:30,467 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 17:17:30,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:17:30,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76095777] [2023-08-25 17:17:30,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76095777] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:17:30,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:17:30,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 17:17:30,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565576586] [2023-08-25 17:17:30,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:17:30,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:17:30,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:17:30,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:17:30,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:17:30,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 175 [2023-08-25 17:17:30,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 190 transitions, 1408 flow. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:30,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:17:30,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 175 [2023-08-25 17:17:30,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:17:30,504 INFO L124 PetriNetUnfolderBase]: 33/147 cut-off events. [2023-08-25 17:17:30,504 INFO L125 PetriNetUnfolderBase]: For 188/188 co-relation queries the response was YES. [2023-08-25 17:17:30,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 504 conditions, 147 events. 33/147 cut-off events. For 188/188 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 427 event pairs, 4 based on Foata normal form. 8/145 useless extension candidates. Maximal degree in co-relation 481. Up to 55 conditions per place. [2023-08-25 17:17:30,505 INFO L140 encePairwiseOnDemand]: 171/175 looper letters, 10 selfloop transitions, 4 changer transitions 0/63 dead transitions. [2023-08-25 17:17:30,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 63 transitions, 389 flow [2023-08-25 17:17:30,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:17:30,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:17:30,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 320 transitions. [2023-08-25 17:17:30,507 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6095238095238096 [2023-08-25 17:17:30,507 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 320 transitions. [2023-08-25 17:17:30,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 320 transitions. [2023-08-25 17:17:30,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:17:30,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 320 transitions. [2023-08-25 17:17:30,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:30,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:30,509 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:30,510 INFO L175 Difference]: Start difference. First operand has 84 places, 190 transitions, 1408 flow. Second operand 3 states and 320 transitions. [2023-08-25 17:17:30,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 63 transitions, 389 flow [2023-08-25 17:17:30,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 63 transitions, 281 flow, removed 32 selfloop flow, removed 20 redundant places. [2023-08-25 17:17:30,513 INFO L231 Difference]: Finished difference. Result has 63 places, 63 transitions, 261 flow [2023-08-25 17:17:30,513 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=261, PETRI_PLACES=63, PETRI_TRANSITIONS=63} [2023-08-25 17:17:30,514 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 17 predicate places. [2023-08-25 17:17:30,514 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 63 transitions, 261 flow [2023-08-25 17:17:30,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:30,514 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:17:30,515 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 17:17:30,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 17:17:30,515 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 17:17:30,515 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:17:30,515 INFO L85 PathProgramCache]: Analyzing trace with hash -648240403, now seen corresponding path program 1 times [2023-08-25 17:17:30,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:17:30,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136724810] [2023-08-25 17:17:30,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:17:30,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:17:30,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:17:30,743 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 17:17:30,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:17:30,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136724810] [2023-08-25 17:17:30,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136724810] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:17:30,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:17:30,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 17:17:30,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458105514] [2023-08-25 17:17:30,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:17:30,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 17:17:30,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:17:30,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 17:17:30,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 17:17:30,746 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 175 [2023-08-25 17:17:30,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 63 transitions, 261 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:30,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:17:30,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 175 [2023-08-25 17:17:30,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:17:30,943 INFO L124 PetriNetUnfolderBase]: 125/333 cut-off events. [2023-08-25 17:17:30,943 INFO L125 PetriNetUnfolderBase]: For 119/119 co-relation queries the response was YES. [2023-08-25 17:17:30,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 973 conditions, 333 events. 125/333 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1271 event pairs, 18 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 959. Up to 202 conditions per place. [2023-08-25 17:17:30,945 INFO L140 encePairwiseOnDemand]: 165/175 looper letters, 78 selfloop transitions, 25 changer transitions 17/123 dead transitions. [2023-08-25 17:17:30,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 123 transitions, 718 flow [2023-08-25 17:17:30,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 17:17:30,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 17:17:30,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 500 transitions. [2023-08-25 17:17:30,947 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47619047619047616 [2023-08-25 17:17:30,947 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 500 transitions. [2023-08-25 17:17:30,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 500 transitions. [2023-08-25 17:17:30,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:17:30,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 500 transitions. [2023-08-25 17:17:30,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 83.33333333333333) internal successors, (500), 6 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:30,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:30,951 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 175.0) internal successors, (1225), 7 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:30,951 INFO L175 Difference]: Start difference. First operand has 63 places, 63 transitions, 261 flow. Second operand 6 states and 500 transitions. [2023-08-25 17:17:30,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 123 transitions, 718 flow [2023-08-25 17:17:30,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 123 transitions, 706 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:17:30,955 INFO L231 Difference]: Finished difference. Result has 72 places, 78 transitions, 438 flow [2023-08-25 17:17:30,955 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=438, PETRI_PLACES=72, PETRI_TRANSITIONS=78} [2023-08-25 17:17:30,956 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 26 predicate places. [2023-08-25 17:17:30,956 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 78 transitions, 438 flow [2023-08-25 17:17:30,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:30,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:17:30,956 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:17:30,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 17:17:30,957 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 17:17:30,957 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:17:30,957 INFO L85 PathProgramCache]: Analyzing trace with hash 540606691, now seen corresponding path program 1 times [2023-08-25 17:17:30,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:17:30,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852147925] [2023-08-25 17:17:30,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:17:30,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:17:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:17:31,432 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 17:17:31,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:17:31,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852147925] [2023-08-25 17:17:31,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852147925] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:17:31,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:17:31,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:17:31,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132265216] [2023-08-25 17:17:31,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:17:31,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:17:31,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:17:31,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:17:31,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:17:31,436 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 175 [2023-08-25 17:17:31,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 78 transitions, 438 flow. Second operand has 11 states, 11 states have (on average 55.81818181818182) internal successors, (614), 11 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:31,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:17:31,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 175 [2023-08-25 17:17:31,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:17:31,746 INFO L124 PetriNetUnfolderBase]: 124/314 cut-off events. [2023-08-25 17:17:31,746 INFO L125 PetriNetUnfolderBase]: For 402/402 co-relation queries the response was YES. [2023-08-25 17:17:31,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1162 conditions, 314 events. 124/314 cut-off events. For 402/402 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1221 event pairs, 4 based on Foata normal form. 0/314 useless extension candidates. Maximal degree in co-relation 1143. Up to 167 conditions per place. [2023-08-25 17:17:31,749 INFO L140 encePairwiseOnDemand]: 166/175 looper letters, 78 selfloop transitions, 28 changer transitions 16/122 dead transitions. [2023-08-25 17:17:31,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 122 transitions, 942 flow [2023-08-25 17:17:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 17:17:31,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 17:17:31,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 549 transitions. [2023-08-25 17:17:31,752 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3485714285714286 [2023-08-25 17:17:31,752 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 549 transitions. [2023-08-25 17:17:31,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 549 transitions. [2023-08-25 17:17:31,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:17:31,752 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 549 transitions. [2023-08-25 17:17:31,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 61.0) internal successors, (549), 9 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:31,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:31,756 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:31,756 INFO L175 Difference]: Start difference. First operand has 72 places, 78 transitions, 438 flow. Second operand 9 states and 549 transitions. [2023-08-25 17:17:31,757 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 122 transitions, 942 flow [2023-08-25 17:17:31,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 122 transitions, 866 flow, removed 35 selfloop flow, removed 6 redundant places. [2023-08-25 17:17:31,761 INFO L231 Difference]: Finished difference. Result has 70 places, 74 transitions, 425 flow [2023-08-25 17:17:31,762 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=425, PETRI_PLACES=70, PETRI_TRANSITIONS=74} [2023-08-25 17:17:31,763 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 24 predicate places. [2023-08-25 17:17:31,764 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 74 transitions, 425 flow [2023-08-25 17:17:31,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 55.81818181818182) internal successors, (614), 11 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:31,764 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:17:31,764 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:17:31,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 17:17:31,765 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 17:17:31,771 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:17:31,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1194834254, now seen corresponding path program 1 times [2023-08-25 17:17:31,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:17:31,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083619004] [2023-08-25 17:17:31,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:17:31,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:17:31,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:17:32,313 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 17:17:32,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:17:32,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083619004] [2023-08-25 17:17:32,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083619004] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:17:32,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:17:32,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:17:32,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767703330] [2023-08-25 17:17:32,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:17:32,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:17:32,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:17:32,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:17:32,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:17:32,319 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 175 [2023-08-25 17:17:32,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 74 transitions, 425 flow. Second operand has 11 states, 11 states have (on average 57.81818181818182) internal successors, (636), 11 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:32,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:17:32,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 175 [2023-08-25 17:17:32,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:17:32,688 INFO L124 PetriNetUnfolderBase]: 99/271 cut-off events. [2023-08-25 17:17:32,689 INFO L125 PetriNetUnfolderBase]: For 262/262 co-relation queries the response was YES. [2023-08-25 17:17:32,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1019 conditions, 271 events. 99/271 cut-off events. For 262/262 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 931 event pairs, 19 based on Foata normal form. 6/277 useless extension candidates. Maximal degree in co-relation 1003. Up to 165 conditions per place. [2023-08-25 17:17:32,691 INFO L140 encePairwiseOnDemand]: 163/175 looper letters, 80 selfloop transitions, 25 changer transitions 18/123 dead transitions. [2023-08-25 17:17:32,691 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 123 transitions, 824 flow [2023-08-25 17:17:32,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 17:17:32,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 17:17:32,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 600 transitions. [2023-08-25 17:17:32,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38095238095238093 [2023-08-25 17:17:32,694 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 600 transitions. [2023-08-25 17:17:32,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 600 transitions. [2023-08-25 17:17:32,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:17:32,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 600 transitions. [2023-08-25 17:17:32,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 66.66666666666667) internal successors, (600), 9 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:32,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:32,698 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:32,698 INFO L175 Difference]: Start difference. First operand has 70 places, 74 transitions, 425 flow. Second operand 9 states and 600 transitions. [2023-08-25 17:17:32,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 123 transitions, 824 flow [2023-08-25 17:17:32,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 123 transitions, 723 flow, removed 3 selfloop flow, removed 9 redundant places. [2023-08-25 17:17:32,703 INFO L231 Difference]: Finished difference. Result has 70 places, 74 transitions, 402 flow [2023-08-25 17:17:32,703 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=402, PETRI_PLACES=70, PETRI_TRANSITIONS=74} [2023-08-25 17:17:32,704 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 24 predicate places. [2023-08-25 17:17:32,704 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 74 transitions, 402 flow [2023-08-25 17:17:32,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 57.81818181818182) internal successors, (636), 11 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:32,705 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:17:32,705 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:17:32,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 17:17:32,705 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 17:17:32,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:17:32,705 INFO L85 PathProgramCache]: Analyzing trace with hash -2076941538, now seen corresponding path program 2 times [2023-08-25 17:17:32,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:17:32,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061974092] [2023-08-25 17:17:32,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:17:32,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:17:32,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:17:33,068 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 17:17:33,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:17:33,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061974092] [2023-08-25 17:17:33,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061974092] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:17:33,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:17:33,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:17:33,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976327239] [2023-08-25 17:17:33,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:17:33,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:17:33,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:17:33,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:17:33,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:17:33,072 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 175 [2023-08-25 17:17:33,073 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 74 transitions, 402 flow. Second operand has 11 states, 11 states have (on average 57.81818181818182) internal successors, (636), 11 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:33,073 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:17:33,073 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 175 [2023-08-25 17:17:33,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:17:33,391 INFO L124 PetriNetUnfolderBase]: 145/371 cut-off events. [2023-08-25 17:17:33,391 INFO L125 PetriNetUnfolderBase]: For 478/478 co-relation queries the response was YES. [2023-08-25 17:17:33,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1414 conditions, 371 events. 145/371 cut-off events. For 478/478 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1532 event pairs, 12 based on Foata normal form. 10/381 useless extension candidates. Maximal degree in co-relation 1396. Up to 186 conditions per place. [2023-08-25 17:17:33,393 INFO L140 encePairwiseOnDemand]: 167/175 looper letters, 57 selfloop transitions, 3 changer transitions 104/164 dead transitions. [2023-08-25 17:17:33,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 164 transitions, 1176 flow [2023-08-25 17:17:33,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 17:17:33,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 17:17:33,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 592 transitions. [2023-08-25 17:17:33,396 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.37587301587301586 [2023-08-25 17:17:33,396 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 592 transitions. [2023-08-25 17:17:33,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 592 transitions. [2023-08-25 17:17:33,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:17:33,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 592 transitions. [2023-08-25 17:17:33,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 65.77777777777777) internal successors, (592), 9 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:33,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:33,401 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:33,401 INFO L175 Difference]: Start difference. First operand has 70 places, 74 transitions, 402 flow. Second operand 9 states and 592 transitions. [2023-08-25 17:17:33,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 164 transitions, 1176 flow [2023-08-25 17:17:33,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 164 transitions, 1102 flow, removed 1 selfloop flow, removed 8 redundant places. [2023-08-25 17:17:33,406 INFO L231 Difference]: Finished difference. Result has 74 places, 58 transitions, 301 flow [2023-08-25 17:17:33,406 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=301, PETRI_PLACES=74, PETRI_TRANSITIONS=58} [2023-08-25 17:17:33,407 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 28 predicate places. [2023-08-25 17:17:33,407 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 58 transitions, 301 flow [2023-08-25 17:17:33,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 57.81818181818182) internal successors, (636), 11 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:33,408 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:17:33,408 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:17:33,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 17:17:33,408 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 17:17:33,408 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:17:33,408 INFO L85 PathProgramCache]: Analyzing trace with hash -597060322, now seen corresponding path program 3 times [2023-08-25 17:17:33,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:17:33,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606507984] [2023-08-25 17:17:33,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:17:33,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:17:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:17:33,855 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 17:17:33,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:17:33,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606507984] [2023-08-25 17:17:33,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606507984] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:17:33,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:17:33,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:17:33,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877042295] [2023-08-25 17:17:33,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:17:33,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:17:33,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:17:33,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:17:33,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:17:33,857 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 175 [2023-08-25 17:17:33,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 58 transitions, 301 flow. Second operand has 11 states, 11 states have (on average 57.81818181818182) internal successors, (636), 11 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:33,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:17:33,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 175 [2023-08-25 17:17:33,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:17:34,274 INFO L124 PetriNetUnfolderBase]: 78/233 cut-off events. [2023-08-25 17:17:34,275 INFO L125 PetriNetUnfolderBase]: For 371/371 co-relation queries the response was YES. [2023-08-25 17:17:34,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 869 conditions, 233 events. 78/233 cut-off events. For 371/371 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 776 event pairs, 13 based on Foata normal form. 10/243 useless extension candidates. Maximal degree in co-relation 847. Up to 129 conditions per place. [2023-08-25 17:17:34,276 INFO L140 encePairwiseOnDemand]: 166/175 looper letters, 70 selfloop transitions, 10 changer transitions 45/125 dead transitions. [2023-08-25 17:17:34,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 125 transitions, 807 flow [2023-08-25 17:17:34,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 17:17:34,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 17:17:34,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 651 transitions. [2023-08-25 17:17:34,279 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.372 [2023-08-25 17:17:34,279 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 651 transitions. [2023-08-25 17:17:34,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 651 transitions. [2023-08-25 17:17:34,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:17:34,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 651 transitions. [2023-08-25 17:17:34,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 65.1) internal successors, (651), 10 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:34,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 175.0) internal successors, (1925), 11 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:34,284 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 175.0) internal successors, (1925), 11 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:34,284 INFO L175 Difference]: Start difference. First operand has 74 places, 58 transitions, 301 flow. Second operand 10 states and 651 transitions. [2023-08-25 17:17:34,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 125 transitions, 807 flow [2023-08-25 17:17:34,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 125 transitions, 726 flow, removed 32 selfloop flow, removed 9 redundant places. [2023-08-25 17:17:34,289 INFO L231 Difference]: Finished difference. Result has 73 places, 58 transitions, 280 flow [2023-08-25 17:17:34,289 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=280, PETRI_PLACES=73, PETRI_TRANSITIONS=58} [2023-08-25 17:17:34,289 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 27 predicate places. [2023-08-25 17:17:34,289 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 58 transitions, 280 flow [2023-08-25 17:17:34,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 57.81818181818182) internal successors, (636), 11 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:34,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:17:34,290 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:17:34,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 17:17:34,290 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 17:17:34,290 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:17:34,291 INFO L85 PathProgramCache]: Analyzing trace with hash -2046108130, now seen corresponding path program 4 times [2023-08-25 17:17:34,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:17:34,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107830496] [2023-08-25 17:17:34,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:17:34,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:17:34,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:17:34,649 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 17:17:34,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:17:34,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107830496] [2023-08-25 17:17:34,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107830496] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:17:34,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:17:34,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:17:34,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010417271] [2023-08-25 17:17:34,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:17:34,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:17:34,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:17:34,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:17:34,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:17:34,655 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 175 [2023-08-25 17:17:34,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 58 transitions, 280 flow. Second operand has 11 states, 11 states have (on average 57.81818181818182) internal successors, (636), 11 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:34,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:17:34,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 175 [2023-08-25 17:17:34,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:17:34,962 INFO L124 PetriNetUnfolderBase]: 94/267 cut-off events. [2023-08-25 17:17:34,962 INFO L125 PetriNetUnfolderBase]: For 401/401 co-relation queries the response was YES. [2023-08-25 17:17:34,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 991 conditions, 267 events. 94/267 cut-off events. For 401/401 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 930 event pairs, 27 based on Foata normal form. 10/277 useless extension candidates. Maximal degree in co-relation 972. Up to 113 conditions per place. [2023-08-25 17:17:34,964 INFO L140 encePairwiseOnDemand]: 167/175 looper letters, 48 selfloop transitions, 4 changer transitions 80/132 dead transitions. [2023-08-25 17:17:34,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 132 transitions, 890 flow [2023-08-25 17:17:34,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 17:17:34,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 17:17:34,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 584 transitions. [2023-08-25 17:17:34,966 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3707936507936508 [2023-08-25 17:17:34,966 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 584 transitions. [2023-08-25 17:17:34,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 584 transitions. [2023-08-25 17:17:34,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:17:34,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 584 transitions. [2023-08-25 17:17:34,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 64.88888888888889) internal successors, (584), 9 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:34,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:34,970 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:34,971 INFO L175 Difference]: Start difference. First operand has 73 places, 58 transitions, 280 flow. Second operand 9 states and 584 transitions. [2023-08-25 17:17:34,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 132 transitions, 890 flow [2023-08-25 17:17:34,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 132 transitions, 832 flow, removed 11 selfloop flow, removed 9 redundant places. [2023-08-25 17:17:34,975 INFO L231 Difference]: Finished difference. Result has 74 places, 52 transitions, 252 flow [2023-08-25 17:17:34,975 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=252, PETRI_PLACES=74, PETRI_TRANSITIONS=52} [2023-08-25 17:17:34,975 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 28 predicate places. [2023-08-25 17:17:34,975 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 52 transitions, 252 flow [2023-08-25 17:17:34,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 57.81818181818182) internal successors, (636), 11 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:34,976 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:17:34,976 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:17:34,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 17:17:34,977 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-08-25 17:17:34,977 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:17:34,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1304669744, now seen corresponding path program 5 times [2023-08-25 17:17:34,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:17:34,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780894609] [2023-08-25 17:17:34,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:17:34,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:17:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:17:35,408 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 17:17:35,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:17:35,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780894609] [2023-08-25 17:17:35,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780894609] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:17:35,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:17:35,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 17:17:35,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69588384] [2023-08-25 17:17:35,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:17:35,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 17:17:35,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:17:35,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 17:17:35,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-25 17:17:35,412 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 175 [2023-08-25 17:17:35,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 52 transitions, 252 flow. Second operand has 11 states, 11 states have (on average 57.81818181818182) internal successors, (636), 11 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:35,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:17:35,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 175 [2023-08-25 17:17:35,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:17:35,699 INFO L124 PetriNetUnfolderBase]: 30/109 cut-off events. [2023-08-25 17:17:35,699 INFO L125 PetriNetUnfolderBase]: For 211/211 co-relation queries the response was YES. [2023-08-25 17:17:35,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 109 events. 30/109 cut-off events. For 211/211 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 226 event pairs, 0 based on Foata normal form. 10/119 useless extension candidates. Maximal degree in co-relation 400. Up to 35 conditions per place. [2023-08-25 17:17:35,700 INFO L140 encePairwiseOnDemand]: 167/175 looper letters, 0 selfloop transitions, 0 changer transitions 89/89 dead transitions. [2023-08-25 17:17:35,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 89 transitions, 577 flow [2023-08-25 17:17:35,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 17:17:35,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 17:17:35,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 567 transitions. [2023-08-25 17:17:35,702 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.36 [2023-08-25 17:17:35,702 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 567 transitions. [2023-08-25 17:17:35,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 567 transitions. [2023-08-25 17:17:35,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:17:35,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 567 transitions. [2023-08-25 17:17:35,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:35,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:35,707 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 175.0) internal successors, (1750), 10 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:35,707 INFO L175 Difference]: Start difference. First operand has 74 places, 52 transitions, 252 flow. Second operand 9 states and 567 transitions. [2023-08-25 17:17:35,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 89 transitions, 577 flow [2023-08-25 17:17:35,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 89 transitions, 505 flow, removed 24 selfloop flow, removed 11 redundant places. [2023-08-25 17:17:35,709 INFO L231 Difference]: Finished difference. Result has 67 places, 0 transitions, 0 flow [2023-08-25 17:17:35,709 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=67, PETRI_TRANSITIONS=0} [2023-08-25 17:17:35,710 INFO L281 CegarLoopForPetriNet]: 46 programPoint places, 21 predicate places. [2023-08-25 17:17:35,710 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 0 transitions, 0 flow [2023-08-25 17:17:35,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 57.81818181818182) internal successors, (636), 11 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:17:35,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2023-08-25 17:17:35,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2023-08-25 17:17:35,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2023-08-25 17:17:35,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2023-08-25 17:17:35,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-08-25 17:17:35,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2023-08-25 17:17:35,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2023-08-25 17:17:35,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2023-08-25 17:17:35,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2023-08-25 17:17:35,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 17:17:35,714 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:17:35,718 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 17:17:35,718 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 17:17:35,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:17:35 BasicIcfg [2023-08-25 17:17:35,720 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 17:17:35,721 INFO L158 Benchmark]: Toolchain (without parser) took 12569.05ms. Allocated memory was 346.0MB in the beginning and 532.7MB in the end (delta: 186.6MB). Free memory was 320.5MB in the beginning and 354.0MB in the end (delta: -33.5MB). Peak memory consumption was 155.2MB. Max. memory is 16.0GB. [2023-08-25 17:17:35,721 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 346.0MB. Free memory was 321.9MB in the beginning and 321.7MB in the end (delta: 169.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:17:35,721 INFO L158 Benchmark]: CACSL2BoogieTranslator took 573.19ms. Allocated memory is still 346.0MB. Free memory was 320.5MB in the beginning and 291.6MB in the end (delta: 28.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-08-25 17:17:35,721 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.65ms. Allocated memory is still 346.0MB. Free memory was 291.6MB in the beginning and 289.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:17:35,722 INFO L158 Benchmark]: Boogie Preprocessor took 32.03ms. Allocated memory is still 346.0MB. Free memory was 289.0MB in the beginning and 287.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:17:35,722 INFO L158 Benchmark]: RCFGBuilder took 496.69ms. Allocated memory is still 346.0MB. Free memory was 287.4MB in the beginning and 270.2MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-08-25 17:17:35,722 INFO L158 Benchmark]: TraceAbstraction took 11413.31ms. Allocated memory was 346.0MB in the beginning and 532.7MB in the end (delta: 186.6MB). Free memory was 269.2MB in the beginning and 354.0MB in the end (delta: -84.8MB). Peak memory consumption was 104.9MB. Max. memory is 16.0GB. [2023-08-25 17:17:35,723 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 346.0MB. Free memory was 321.9MB in the beginning and 321.7MB in the end (delta: 169.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 573.19ms. Allocated memory is still 346.0MB. Free memory was 320.5MB in the beginning and 291.6MB in the end (delta: 28.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 46.65ms. Allocated memory is still 346.0MB. Free memory was 291.6MB in the beginning and 289.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 32.03ms. Allocated memory is still 346.0MB. Free memory was 289.0MB in the beginning and 287.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 496.69ms. Allocated memory is still 346.0MB. Free memory was 287.4MB in the beginning and 270.2MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 11413.31ms. Allocated memory was 346.0MB in the beginning and 532.7MB in the end (delta: 186.6MB). Free memory was 269.2MB in the beginning and 354.0MB in the end (delta: -84.8MB). Peak memory consumption was 104.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 246]: Unsoundness Warning unspecified type, defaulting to int C: short [246] - GenericResultAtLocation [Line: 246]: Unsoundness Warning unspecified type, defaulting to int C: short [246] - GenericResultAtLocation [Line: 738]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [738] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 101 PlacesBefore, 46 PlacesAfterwards, 97 TransitionsBefore, 42 TransitionsAfterwards, 1612 CoEnabledTransitionPairs, 7 FixpointIterations, 43 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 61 TotalNumberOfCompositions, 11859 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2002, independent: 1434, independent conditional: 0, independent unconditional: 1434, dependent: 568, dependent conditional: 0, dependent unconditional: 568, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 642, independent: 570, independent conditional: 0, independent unconditional: 570, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2002, independent: 864, independent conditional: 0, independent unconditional: 864, dependent: 496, dependent conditional: 0, dependent unconditional: 496, unknown: 642, unknown conditional: 0, unknown unconditional: 642] , Statistics on independence cache: Total cache size (in pairs): 126, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 50, Negative conditional cache size: 0, Negative unconditional cache size: 50, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 931]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 936]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 936]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 938]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 924]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 924]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 142 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 11.2s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 478 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 478 mSDsluCounter, 184 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40 mSDsCounter, 291 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3011 IncrementalHoareTripleChecker+Invalid, 3302 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 291 mSolverCounterUnsat, 144 mSDtfsCounter, 3011 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 131 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1408occurred in iteration=5, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 275 NumberOfCodeBlocks, 275 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 262 ConstructedInterpolants, 0 QuantifiedInterpolants, 3061 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 17:17:35,739 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...