/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/13-privatized_20-publish-regression_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 17:57:01,843 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 17:57:01,922 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 17:57:01,927 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 17:57:01,927 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 17:57:01,958 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 17:57:01,958 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 17:57:01,959 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 17:57:01,959 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 17:57:01,963 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 17:57:01,963 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 17:57:01,963 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 17:57:01,963 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 17:57:01,964 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 17:57:01,965 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 17:57:01,965 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 17:57:01,965 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 17:57:01,965 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 17:57:01,965 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 17:57:01,966 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 17:57:01,966 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 17:57:01,966 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 17:57:01,966 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 17:57:01,967 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 17:57:01,967 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 17:57:01,967 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 17:57:01,968 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 17:57:01,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:57:01,968 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 17:57:01,968 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 17:57:01,969 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 17:57:01,969 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 17:57:01,970 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 17:57:01,970 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 17:57:01,970 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 17:57:01,970 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 17:57:02,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 17:57:02,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 17:57:02,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 17:57:02,321 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 17:57:02,324 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 17:57:02,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i [2023-08-25 17:57:03,401 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 17:57:03,699 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 17:57:03,700 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_20-publish-regression_true.i [2023-08-25 17:57:03,718 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8e560524/6481fbe3a6474e5292d7d96da72c1e15/FLAG52031bbf4 [2023-08-25 17:57:03,733 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8e560524/6481fbe3a6474e5292d7d96da72c1e15 [2023-08-25 17:57:03,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 17:57:03,738 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 17:57:03,741 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 17:57:03,741 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 17:57:03,744 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 17:57:03,745 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:57:03" (1/1) ... [2023-08-25 17:57:03,746 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34ab301a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:03, skipping insertion in model container [2023-08-25 17:57:03,746 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 05:57:03" (1/1) ... [2023-08-25 17:57:03,791 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 17:57:04,084 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:57:04,097 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 17:57:04,124 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [231] [2023-08-25 17:57:04,126 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-25 17:57:04,151 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 17:57:04,187 INFO L206 MainTranslator]: Completed translation [2023-08-25 17:57:04,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:04 WrapperNode [2023-08-25 17:57:04,187 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 17:57:04,188 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 17:57:04,188 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 17:57:04,189 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 17:57:04,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:04" (1/1) ... [2023-08-25 17:57:04,222 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:04" (1/1) ... [2023-08-25 17:57:04,249 INFO L138 Inliner]: procedures = 162, calls = 32, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 103 [2023-08-25 17:57:04,250 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 17:57:04,251 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 17:57:04,251 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 17:57:04,251 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 17:57:04,258 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:04" (1/1) ... [2023-08-25 17:57:04,259 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:04" (1/1) ... [2023-08-25 17:57:04,261 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:04" (1/1) ... [2023-08-25 17:57:04,261 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:04" (1/1) ... [2023-08-25 17:57:04,265 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:04" (1/1) ... [2023-08-25 17:57:04,267 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:04" (1/1) ... [2023-08-25 17:57:04,277 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:04" (1/1) ... [2023-08-25 17:57:04,278 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:04" (1/1) ... [2023-08-25 17:57:04,280 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 17:57:04,281 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 17:57:04,281 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 17:57:04,281 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 17:57:04,282 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:04" (1/1) ... [2023-08-25 17:57:04,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 17:57:04,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 17:57:04,330 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 17:57:04,345 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 17:57:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 17:57:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 17:57:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-25 17:57:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 17:57:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 17:57:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-25 17:57:04,366 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-25 17:57:04,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 17:57:04,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 17:57:04,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 17:57:04,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 17:57:04,367 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 17:57:04,469 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 17:57:04,471 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 17:57:04,703 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 17:57:04,712 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 17:57:04,713 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 17:57:04,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:57:04 BoogieIcfgContainer [2023-08-25 17:57:04,716 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 17:57:04,718 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 17:57:04,718 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 17:57:04,722 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 17:57:04,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 05:57:03" (1/3) ... [2023-08-25 17:57:04,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba03166 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:57:04, skipping insertion in model container [2023-08-25 17:57:04,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 05:57:04" (2/3) ... [2023-08-25 17:57:04,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba03166 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 05:57:04, skipping insertion in model container [2023-08-25 17:57:04,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 05:57:04" (3/3) ... [2023-08-25 17:57:04,725 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_20-publish-regression_true.i [2023-08-25 17:57:04,741 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 17:57:04,741 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-08-25 17:57:04,741 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 17:57:04,817 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-25 17:57:04,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 116 places, 118 transitions, 244 flow [2023-08-25 17:57:04,917 INFO L124 PetriNetUnfolderBase]: 6/117 cut-off events. [2023-08-25 17:57:04,917 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 17:57:04,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 117 events. 6/117 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 106 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2023-08-25 17:57:04,924 INFO L82 GeneralOperation]: Start removeDead. Operand has 116 places, 118 transitions, 244 flow [2023-08-25 17:57:04,928 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 108 places, 110 transitions, 223 flow [2023-08-25 17:57:04,932 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 17:57:04,944 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 110 transitions, 223 flow [2023-08-25 17:57:04,947 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 110 transitions, 223 flow [2023-08-25 17:57:04,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 110 transitions, 223 flow [2023-08-25 17:57:04,988 INFO L124 PetriNetUnfolderBase]: 6/110 cut-off events. [2023-08-25 17:57:04,989 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:57:04,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 110 events. 6/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 106 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2023-08-25 17:57:04,993 INFO L119 LiptonReduction]: Number of co-enabled transitions 2106 [2023-08-25 17:57:08,165 INFO L134 LiptonReduction]: Checked pairs total: 7072 [2023-08-25 17:57:08,165 INFO L136 LiptonReduction]: Total number of compositions: 116 [2023-08-25 17:57:08,175 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 17:57:08,180 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;@51ae39b5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 17:57:08,181 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-08-25 17:57:08,181 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 17:57:08,182 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-25 17:57:08,182 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:57:08,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:08,182 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-25 17:57:08,183 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-25 17:57:08,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:08,187 INFO L85 PathProgramCache]: Analyzing trace with hash 450, now seen corresponding path program 1 times [2023-08-25 17:57:08,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:08,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721893559] [2023-08-25 17:57:08,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:08,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:08,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:08,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 17:57:08,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:08,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721893559] [2023-08-25 17:57:08,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721893559] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:08,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:08,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-25 17:57:08,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111628130] [2023-08-25 17:57:08,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:08,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 17:57:08,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:08,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 17:57:08,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 17:57:08,311 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 234 [2023-08-25 17:57:08,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 39 transitions, 81 flow. Second operand has 2 states, 2 states have (on average 107.5) internal successors, (215), 2 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:08,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:08,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 234 [2023-08-25 17:57:08,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:08,417 INFO L124 PetriNetUnfolderBase]: 84/236 cut-off events. [2023-08-25 17:57:08,417 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:57:08,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 430 conditions, 236 events. 84/236 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1139 event pairs, 84 based on Foata normal form. 42/208 useless extension candidates. Maximal degree in co-relation 421. Up to 190 conditions per place. [2023-08-25 17:57:08,420 INFO L140 encePairwiseOnDemand]: 228/234 looper letters, 21 selfloop transitions, 0 changer transitions 0/31 dead transitions. [2023-08-25 17:57:08,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 31 transitions, 107 flow [2023-08-25 17:57:08,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 17:57:08,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 17:57:08,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 241 transitions. [2023-08-25 17:57:08,435 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5149572649572649 [2023-08-25 17:57:08,436 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 241 transitions. [2023-08-25 17:57:08,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 241 transitions. [2023-08-25 17:57:08,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:08,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 241 transitions. [2023-08-25 17:57:08,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 120.5) internal successors, (241), 2 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:08,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 234.0) internal successors, (702), 3 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:08,450 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 234.0) internal successors, (702), 3 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:08,452 INFO L175 Difference]: Start difference. First operand has 39 places, 39 transitions, 81 flow. Second operand 2 states and 241 transitions. [2023-08-25 17:57:08,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 31 transitions, 107 flow [2023-08-25 17:57:08,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 31 transitions, 106 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:57:08,456 INFO L231 Difference]: Finished difference. Result has 35 places, 31 transitions, 64 flow [2023-08-25 17:57:08,457 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=64, PETRI_PLACES=35, PETRI_TRANSITIONS=31} [2023-08-25 17:57:08,460 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -4 predicate places. [2023-08-25 17:57:08,460 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 31 transitions, 64 flow [2023-08-25 17:57:08,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 107.5) internal successors, (215), 2 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:08,461 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:08,461 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 17:57:08,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 17:57:08,461 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-25 17:57:08,469 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:08,469 INFO L85 PathProgramCache]: Analyzing trace with hash 425901014, now seen corresponding path program 1 times [2023-08-25 17:57:08,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:08,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794962511] [2023-08-25 17:57:08,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:08,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:08,615 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 17:57:08,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:08,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794962511] [2023-08-25 17:57:08,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794962511] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:08,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:08,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:57:08,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821523857] [2023-08-25 17:57:08,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:08,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:08,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:08,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:08,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:08,619 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 234 [2023-08-25 17:57:08,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 31 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:08,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:08,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 234 [2023-08-25 17:57:08,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:08,704 INFO L124 PetriNetUnfolderBase]: 207/477 cut-off events. [2023-08-25 17:57:08,705 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 17:57:08,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 946 conditions, 477 events. 207/477 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2263 event pairs, 71 based on Foata normal form. 0/329 useless extension candidates. Maximal degree in co-relation 943. Up to 294 conditions per place. [2023-08-25 17:57:08,708 INFO L140 encePairwiseOnDemand]: 226/234 looper letters, 39 selfloop transitions, 6 changer transitions 0/47 dead transitions. [2023-08-25 17:57:08,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 47 transitions, 186 flow [2023-08-25 17:57:08,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:08,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:08,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 323 transitions. [2023-08-25 17:57:08,711 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4601139601139601 [2023-08-25 17:57:08,711 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 323 transitions. [2023-08-25 17:57:08,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 323 transitions. [2023-08-25 17:57:08,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:08,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 323 transitions. [2023-08-25 17:57:08,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:08,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:08,715 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:08,715 INFO L175 Difference]: Start difference. First operand has 35 places, 31 transitions, 64 flow. Second operand 3 states and 323 transitions. [2023-08-25 17:57:08,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 47 transitions, 186 flow [2023-08-25 17:57:08,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 47 transitions, 186 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 17:57:08,717 INFO L231 Difference]: Finished difference. Result has 38 places, 33 transitions, 100 flow [2023-08-25 17:57:08,717 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=38, PETRI_TRANSITIONS=33} [2023-08-25 17:57:08,717 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -1 predicate places. [2023-08-25 17:57:08,718 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 33 transitions, 100 flow [2023-08-25 17:57:08,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:08,718 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:08,718 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 17:57:08,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 17:57:08,719 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-25 17:57:08,719 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:08,719 INFO L85 PathProgramCache]: Analyzing trace with hash 318029983, now seen corresponding path program 1 times [2023-08-25 17:57:08,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:08,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776845805] [2023-08-25 17:57:08,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:08,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:08,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:08,822 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 17:57:08,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:08,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776845805] [2023-08-25 17:57:08,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776845805] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:08,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:08,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 17:57:08,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710327986] [2023-08-25 17:57:08,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:08,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:08,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:08,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:08,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:08,825 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 234 [2023-08-25 17:57:08,826 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 33 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:08,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:08,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 234 [2023-08-25 17:57:08,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:08,890 INFO L124 PetriNetUnfolderBase]: 110/323 cut-off events. [2023-08-25 17:57:08,891 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2023-08-25 17:57:08,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 671 conditions, 323 events. 110/323 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1633 event pairs, 67 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 666. Up to 146 conditions per place. [2023-08-25 17:57:08,893 INFO L140 encePairwiseOnDemand]: 229/234 looper letters, 24 selfloop transitions, 3 changer transitions 0/38 dead transitions. [2023-08-25 17:57:08,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 38 transitions, 164 flow [2023-08-25 17:57:08,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:08,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:08,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 332 transitions. [2023-08-25 17:57:08,895 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47293447293447294 [2023-08-25 17:57:08,895 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 332 transitions. [2023-08-25 17:57:08,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 332 transitions. [2023-08-25 17:57:08,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:08,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 332 transitions. [2023-08-25 17:57:08,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:08,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:08,899 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:08,899 INFO L175 Difference]: Start difference. First operand has 38 places, 33 transitions, 100 flow. Second operand 3 states and 332 transitions. [2023-08-25 17:57:08,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 38 transitions, 164 flow [2023-08-25 17:57:08,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 38 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 17:57:08,901 INFO L231 Difference]: Finished difference. Result has 39 places, 33 transitions, 101 flow [2023-08-25 17:57:08,902 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=39, PETRI_TRANSITIONS=33} [2023-08-25 17:57:08,902 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 0 predicate places. [2023-08-25 17:57:08,903 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 33 transitions, 101 flow [2023-08-25 17:57:08,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:08,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:08,903 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:08,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 17:57:08,904 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-25 17:57:08,904 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:08,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1222644138, now seen corresponding path program 1 times [2023-08-25 17:57:08,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:08,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366150968] [2023-08-25 17:57:08,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:08,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:08,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:08,940 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 17:57:08,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:08,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366150968] [2023-08-25 17:57:08,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366150968] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:08,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:08,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:57:08,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934393653] [2023-08-25 17:57:08,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:08,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:08,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:08,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:08,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:08,943 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 234 [2023-08-25 17:57:08,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:08,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:08,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 234 [2023-08-25 17:57:08,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:09,037 INFO L124 PetriNetUnfolderBase]: 179/428 cut-off events. [2023-08-25 17:57:09,038 INFO L125 PetriNetUnfolderBase]: For 70/73 co-relation queries the response was YES. [2023-08-25 17:57:09,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 988 conditions, 428 events. 179/428 cut-off events. For 70/73 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1973 event pairs, 134 based on Foata normal form. 0/327 useless extension candidates. Maximal degree in co-relation 982. Up to 394 conditions per place. [2023-08-25 17:57:09,040 INFO L140 encePairwiseOnDemand]: 230/234 looper letters, 39 selfloop transitions, 3 changer transitions 0/44 dead transitions. [2023-08-25 17:57:09,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 44 transitions, 217 flow [2023-08-25 17:57:09,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:09,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:09,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 310 transitions. [2023-08-25 17:57:09,043 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4415954415954416 [2023-08-25 17:57:09,043 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 310 transitions. [2023-08-25 17:57:09,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 310 transitions. [2023-08-25 17:57:09,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:09,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 310 transitions. [2023-08-25 17:57:09,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,047 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,047 INFO L175 Difference]: Start difference. First operand has 39 places, 33 transitions, 101 flow. Second operand 3 states and 310 transitions. [2023-08-25 17:57:09,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 44 transitions, 217 flow [2023-08-25 17:57:09,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 44 transitions, 211 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 17:57:09,049 INFO L231 Difference]: Finished difference. Result has 40 places, 35 transitions, 116 flow [2023-08-25 17:57:09,049 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=40, PETRI_TRANSITIONS=35} [2023-08-25 17:57:09,050 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2023-08-25 17:57:09,050 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 35 transitions, 116 flow [2023-08-25 17:57:09,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:09,051 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:09,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 17:57:09,051 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-25 17:57:09,052 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:09,052 INFO L85 PathProgramCache]: Analyzing trace with hash 684065436, now seen corresponding path program 1 times [2023-08-25 17:57:09,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:09,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218766747] [2023-08-25 17:57:09,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:09,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:09,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:09,165 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 17:57:09,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:09,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218766747] [2023-08-25 17:57:09,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218766747] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:09,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:09,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:57:09,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83165898] [2023-08-25 17:57:09,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:09,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:09,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:09,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:09,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:09,168 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 234 [2023-08-25 17:57:09,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 35 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:09,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 234 [2023-08-25 17:57:09,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:09,227 INFO L124 PetriNetUnfolderBase]: 101/283 cut-off events. [2023-08-25 17:57:09,228 INFO L125 PetriNetUnfolderBase]: For 89/94 co-relation queries the response was YES. [2023-08-25 17:57:09,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 646 conditions, 283 events. 101/283 cut-off events. For 89/94 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1426 event pairs, 50 based on Foata normal form. 0/228 useless extension candidates. Maximal degree in co-relation 639. Up to 152 conditions per place. [2023-08-25 17:57:09,229 INFO L140 encePairwiseOnDemand]: 232/234 looper letters, 30 selfloop transitions, 1 changer transitions 3/47 dead transitions. [2023-08-25 17:57:09,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 47 transitions, 221 flow [2023-08-25 17:57:09,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:09,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:09,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 318 transitions. [2023-08-25 17:57:09,234 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.452991452991453 [2023-08-25 17:57:09,234 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 318 transitions. [2023-08-25 17:57:09,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 318 transitions. [2023-08-25 17:57:09,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:09,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 318 transitions. [2023-08-25 17:57:09,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,237 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,237 INFO L175 Difference]: Start difference. First operand has 40 places, 35 transitions, 116 flow. Second operand 3 states and 318 transitions. [2023-08-25 17:57:09,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 47 transitions, 221 flow [2023-08-25 17:57:09,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 47 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:57:09,240 INFO L231 Difference]: Finished difference. Result has 40 places, 34 transitions, 113 flow [2023-08-25 17:57:09,240 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=113, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2023-08-25 17:57:09,240 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2023-08-25 17:57:09,241 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 34 transitions, 113 flow [2023-08-25 17:57:09,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,241 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:09,241 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:09,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 17:57:09,241 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-25 17:57:09,242 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:09,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1886848339, now seen corresponding path program 1 times [2023-08-25 17:57:09,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:09,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271398629] [2023-08-25 17:57:09,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:09,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:09,286 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 17:57:09,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:09,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271398629] [2023-08-25 17:57:09,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271398629] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:09,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:09,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 17:57:09,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314834058] [2023-08-25 17:57:09,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:09,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:09,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:09,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:09,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:09,289 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 234 [2023-08-25 17:57:09,289 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 34 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:09,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 234 [2023-08-25 17:57:09,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:09,343 INFO L124 PetriNetUnfolderBase]: 60/206 cut-off events. [2023-08-25 17:57:09,343 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2023-08-25 17:57:09,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 206 events. 60/206 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 954 event pairs, 22 based on Foata normal form. 6/174 useless extension candidates. Maximal degree in co-relation 448. Up to 87 conditions per place. [2023-08-25 17:57:09,344 INFO L140 encePairwiseOnDemand]: 228/234 looper letters, 24 selfloop transitions, 6 changer transitions 2/42 dead transitions. [2023-08-25 17:57:09,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 42 transitions, 190 flow [2023-08-25 17:57:09,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:09,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:09,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2023-08-25 17:57:09,346 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4458689458689459 [2023-08-25 17:57:09,346 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 313 transitions. [2023-08-25 17:57:09,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 313 transitions. [2023-08-25 17:57:09,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:09,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 313 transitions. [2023-08-25 17:57:09,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,349 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,349 INFO L175 Difference]: Start difference. First operand has 40 places, 34 transitions, 113 flow. Second operand 3 states and 313 transitions. [2023-08-25 17:57:09,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 42 transitions, 190 flow [2023-08-25 17:57:09,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 42 transitions, 182 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-08-25 17:57:09,351 INFO L231 Difference]: Finished difference. Result has 39 places, 33 transitions, 118 flow [2023-08-25 17:57:09,351 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=39, PETRI_TRANSITIONS=33} [2023-08-25 17:57:09,352 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 0 predicate places. [2023-08-25 17:57:09,352 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 33 transitions, 118 flow [2023-08-25 17:57:09,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,352 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:09,352 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:09,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 17:57:09,353 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-25 17:57:09,353 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:09,353 INFO L85 PathProgramCache]: Analyzing trace with hash -719611058, now seen corresponding path program 1 times [2023-08-25 17:57:09,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:09,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092112666] [2023-08-25 17:57:09,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:09,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:09,399 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 17:57:09,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:09,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092112666] [2023-08-25 17:57:09,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092112666] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:09,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:09,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:57:09,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749004290] [2023-08-25 17:57:09,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:09,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:09,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:09,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:09,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:09,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 234 [2023-08-25 17:57:09,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 118 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 17:57:09,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:09,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 234 [2023-08-25 17:57:09,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:09,444 INFO L124 PetriNetUnfolderBase]: 46/179 cut-off events. [2023-08-25 17:57:09,444 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2023-08-25 17:57:09,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 452 conditions, 179 events. 46/179 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 789 event pairs, 26 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 445. Up to 83 conditions per place. [2023-08-25 17:57:09,445 INFO L140 encePairwiseOnDemand]: 230/234 looper letters, 21 selfloop transitions, 2 changer transitions 2/35 dead transitions. [2023-08-25 17:57:09,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 35 transitions, 179 flow [2023-08-25 17:57:09,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:09,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:09,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 328 transitions. [2023-08-25 17:57:09,447 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4672364672364672 [2023-08-25 17:57:09,447 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 328 transitions. [2023-08-25 17:57:09,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 328 transitions. [2023-08-25 17:57:09,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:09,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 328 transitions. [2023-08-25 17:57:09,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,450 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,451 INFO L175 Difference]: Start difference. First operand has 39 places, 33 transitions, 118 flow. Second operand 3 states and 328 transitions. [2023-08-25 17:57:09,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 35 transitions, 179 flow [2023-08-25 17:57:09,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 35 transitions, 171 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 17:57:09,454 INFO L231 Difference]: Finished difference. Result has 38 places, 29 transitions, 104 flow [2023-08-25 17:57:09,454 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=38, PETRI_TRANSITIONS=29} [2023-08-25 17:57:09,455 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -1 predicate places. [2023-08-25 17:57:09,455 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 29 transitions, 104 flow [2023-08-25 17:57:09,456 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 17:57:09,456 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:09,457 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:09,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 17:57:09,457 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-25 17:57:09,457 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:09,459 INFO L85 PathProgramCache]: Analyzing trace with hash -832305368, now seen corresponding path program 1 times [2023-08-25 17:57:09,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:09,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184795239] [2023-08-25 17:57:09,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:09,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:09,591 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 17:57:09,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:09,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184795239] [2023-08-25 17:57:09,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184795239] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:09,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:09,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 17:57:09,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779644855] [2023-08-25 17:57:09,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:09,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-25 17:57:09,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:09,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-25 17:57:09,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-08-25 17:57:09,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 234 [2023-08-25 17:57:09,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 29 transitions, 104 flow. Second operand has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:09,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 234 [2023-08-25 17:57:09,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:09,624 INFO L124 PetriNetUnfolderBase]: 9/56 cut-off events. [2023-08-25 17:57:09,624 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-08-25 17:57:09,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 56 events. 9/56 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 94 event pairs, 0 based on Foata normal form. 5/58 useless extension candidates. Maximal degree in co-relation 130. Up to 38 conditions per place. [2023-08-25 17:57:09,625 INFO L140 encePairwiseOnDemand]: 230/234 looper letters, 12 selfloop transitions, 4 changer transitions 0/22 dead transitions. [2023-08-25 17:57:09,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 22 transitions, 106 flow [2023-08-25 17:57:09,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-25 17:57:09,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-25 17:57:09,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 365 transitions. [2023-08-25 17:57:09,627 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38995726495726496 [2023-08-25 17:57:09,627 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 365 transitions. [2023-08-25 17:57:09,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 365 transitions. [2023-08-25 17:57:09,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:09,627 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 365 transitions. [2023-08-25 17:57:09,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 91.25) internal successors, (365), 4 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 234.0) internal successors, (1170), 5 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,630 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 234.0) internal successors, (1170), 5 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,630 INFO L175 Difference]: Start difference. First operand has 38 places, 29 transitions, 104 flow. Second operand 4 states and 365 transitions. [2023-08-25 17:57:09,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 22 transitions, 106 flow [2023-08-25 17:57:09,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 22 transitions, 83 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-08-25 17:57:09,631 INFO L231 Difference]: Finished difference. Result has 30 places, 21 transitions, 57 flow [2023-08-25 17:57:09,631 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=57, PETRI_PLACES=30, PETRI_TRANSITIONS=21} [2023-08-25 17:57:09,633 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -9 predicate places. [2023-08-25 17:57:09,633 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 21 transitions, 57 flow [2023-08-25 17:57:09,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.8) internal successors, (444), 5 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,634 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 17:57:09,634 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:09,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 17:57:09,634 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-25 17:57:09,635 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 17:57:09,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1753420341, now seen corresponding path program 1 times [2023-08-25 17:57:09,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 17:57:09,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84083079] [2023-08-25 17:57:09,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 17:57:09,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 17:57:09,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 17:57:09,669 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 17:57:09,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 17:57:09,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84083079] [2023-08-25 17:57:09,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84083079] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 17:57:09,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 17:57:09,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 17:57:09,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830015180] [2023-08-25 17:57:09,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 17:57:09,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 17:57:09,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 17:57:09,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 17:57:09,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 17:57:09,674 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 234 [2023-08-25 17:57:09,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 21 transitions, 57 flow. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 17:57:09,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 234 [2023-08-25 17:57:09,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 17:57:09,701 INFO L124 PetriNetUnfolderBase]: 10/52 cut-off events. [2023-08-25 17:57:09,702 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-08-25 17:57:09,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 52 events. 10/52 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 8 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 112. Up to 41 conditions per place. [2023-08-25 17:57:09,702 INFO L140 encePairwiseOnDemand]: 232/234 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2023-08-25 17:57:09,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 21 transitions, 95 flow [2023-08-25 17:57:09,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 17:57:09,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 17:57:09,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions. [2023-08-25 17:57:09,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4131054131054131 [2023-08-25 17:57:09,703 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 290 transitions. [2023-08-25 17:57:09,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 290 transitions. [2023-08-25 17:57:09,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 17:57:09,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 290 transitions. [2023-08-25 17:57:09,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,706 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 234.0) internal successors, (936), 4 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,706 INFO L175 Difference]: Start difference. First operand has 30 places, 21 transitions, 57 flow. Second operand 3 states and 290 transitions. [2023-08-25 17:57:09,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 21 transitions, 95 flow [2023-08-25 17:57:09,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 21 transitions, 87 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 17:57:09,707 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2023-08-25 17:57:09,707 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=234, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2023-08-25 17:57:09,708 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -11 predicate places. [2023-08-25 17:57:09,708 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2023-08-25 17:57:09,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 17:57:09,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2023-08-25 17:57:09,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONASSERT (12 of 14 remaining) [2023-08-25 17:57:09,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2023-08-25 17:57:09,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONASSERT (10 of 14 remaining) [2023-08-25 17:57:09,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2023-08-25 17:57:09,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2023-08-25 17:57:09,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2023-08-25 17:57:09,713 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2023-08-25 17:57:09,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONASSERT (5 of 14 remaining) [2023-08-25 17:57:09,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2023-08-25 17:57:09,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2023-08-25 17:57:09,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2023-08-25 17:57:09,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONASSERT (1 of 14 remaining) [2023-08-25 17:57:09,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2023-08-25 17:57:09,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 17:57:09,715 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 17:57:09,719 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 17:57:09,719 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 17:57:09,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 05:57:09 BasicIcfg [2023-08-25 17:57:09,724 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 17:57:09,724 INFO L158 Benchmark]: Toolchain (without parser) took 5985.96ms. Allocated memory was 333.4MB in the beginning and 400.6MB in the end (delta: 67.1MB). Free memory was 308.1MB in the beginning and 250.3MB in the end (delta: 57.9MB). Peak memory consumption was 125.7MB. Max. memory is 16.0GB. [2023-08-25 17:57:09,724 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 333.4MB. Free memory is still 310.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 17:57:09,725 INFO L158 Benchmark]: CACSL2BoogieTranslator took 446.57ms. Allocated memory is still 333.4MB. Free memory was 308.1MB in the beginning and 289.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 17:57:09,725 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.48ms. Allocated memory is still 333.4MB. Free memory was 289.3MB in the beginning and 287.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:57:09,727 INFO L158 Benchmark]: Boogie Preprocessor took 29.40ms. Allocated memory is still 333.4MB. Free memory was 287.2MB in the beginning and 285.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 17:57:09,727 INFO L158 Benchmark]: RCFGBuilder took 435.29ms. Allocated memory is still 333.4MB. Free memory was 285.1MB in the beginning and 269.4MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-08-25 17:57:09,728 INFO L158 Benchmark]: TraceAbstraction took 5005.56ms. Allocated memory was 333.4MB in the beginning and 400.6MB in the end (delta: 67.1MB). Free memory was 269.0MB in the beginning and 250.3MB in the end (delta: 18.7MB). Peak memory consumption was 87.9MB. Max. memory is 16.0GB. [2023-08-25 17:57:09,730 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 333.4MB. Free memory is still 310.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 446.57ms. Allocated memory is still 333.4MB. Free memory was 308.1MB in the beginning and 289.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 61.48ms. Allocated memory is still 333.4MB. Free memory was 289.3MB in the beginning and 287.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 29.40ms. Allocated memory is still 333.4MB. Free memory was 287.2MB in the beginning and 285.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 435.29ms. Allocated memory is still 333.4MB. Free memory was 285.1MB in the beginning and 269.4MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 5005.56ms. Allocated memory was 333.4MB in the beginning and 400.6MB in the end (delta: 67.1MB). Free memory was 269.0MB in the beginning and 250.3MB in the end (delta: 18.7MB). Peak memory consumption was 87.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 231]: Unsoundness Warning unspecified type, defaulting to int C: short [231] - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.2s, 108 PlacesBefore, 39 PlacesAfterwards, 110 TransitionsBefore, 39 TransitionsAfterwards, 2106 CoEnabledTransitionPairs, 6 FixpointIterations, 50 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 116 TotalNumberOfCompositions, 7072 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3450, independent: 3137, independent conditional: 0, independent unconditional: 3137, dependent: 313, dependent conditional: 0, dependent unconditional: 313, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1242, independent: 1172, independent conditional: 0, independent unconditional: 1172, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3450, independent: 1965, independent conditional: 0, independent unconditional: 1965, dependent: 243, dependent conditional: 0, dependent unconditional: 243, unknown: 1242, unknown conditional: 0, unknown unconditional: 1242] , Statistics on independence cache: Total cache size (in pairs): 190, Positive cache size: 152, Positive conditional cache size: 0, Positive unconditional cache size: 152, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 698]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 701]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 703]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 690]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 691]: 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, 152 locations, 14 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: 4.9s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 79 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 79 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 343 IncrementalHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 19 mSDtfsCounter, 343 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=6, InterpolantAutomatonStates: 27, 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, 0.5s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 171 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 17:57:09,749 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...