/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 PROGRAM_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/02-base_26-malloc_struct.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 06:55:17,969 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 06:55:18,037 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 [2023-08-26 06:55:18,042 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 06:55:18,042 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 06:55:18,068 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 06:55:18,068 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 06:55:18,068 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 06:55:18,069 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 06:55:18,072 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 06:55:18,072 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 06:55:18,072 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 06:55:18,072 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 06:55:18,073 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 06:55:18,073 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 06:55:18,074 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 06:55:18,074 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 06:55:18,074 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 06:55:18,074 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 06:55:18,074 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 06:55:18,074 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 06:55:18,075 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 06:55:18,075 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 06:55:18,076 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 06:55:18,076 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 06:55:18,076 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 06:55:18,076 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 06:55:18,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:55:18,076 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 06:55:18,077 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 06:55:18,077 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 06:55:18,077 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 06:55:18,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 06:55:18,078 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 06:55:18,078 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 06:55:18,078 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 06:55:18,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 06:55:18,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 06:55:18,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 06:55:18,356 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 06:55:18,358 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 06:55:18,359 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/02-base_26-malloc_struct.i [2023-08-26 06:55:19,485 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 06:55:19,756 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 06:55:19,756 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/02-base_26-malloc_struct.i [2023-08-26 06:55:19,769 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1113123fd/deaae48be5cc42e38475487c38ae801b/FLAG8e2835561 [2023-08-26 06:55:19,780 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1113123fd/deaae48be5cc42e38475487c38ae801b [2023-08-26 06:55:19,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 06:55:19,785 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 06:55:19,787 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 06:55:19,787 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 06:55:19,789 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 06:55:19,789 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:55:19" (1/1) ... [2023-08-26 06:55:19,790 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4486f2e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:55:19, skipping insertion in model container [2023-08-26 06:55:19,790 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 06:55:19" (1/1) ... [2023-08-26 06:55:19,832 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 06:55:20,202 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:55:20,212 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 06:55:20,229 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [261] [2023-08-26 06:55:20,230 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [261] [2023-08-26 06:55:20,243 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned short [1044] [2023-08-26 06:55:20,249 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 06:55:20,306 INFO L206 MainTranslator]: Completed translation [2023-08-26 06:55:20,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:55:20 WrapperNode [2023-08-26 06:55:20,306 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 06:55:20,307 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 06:55:20,307 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 06:55:20,308 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 06:55:20,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:55:20" (1/1) ... [2023-08-26 06:55:20,324 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:55:20" (1/1) ... [2023-08-26 06:55:20,336 INFO L138 Inliner]: procedures = 365, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2023-08-26 06:55:20,337 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 06:55:20,343 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 06:55:20,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 06:55:20,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 06:55:20,348 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:55:20" (1/1) ... [2023-08-26 06:55:20,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:55:20" (1/1) ... [2023-08-26 06:55:20,351 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:55:20" (1/1) ... [2023-08-26 06:55:20,351 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:55:20" (1/1) ... [2023-08-26 06:55:20,365 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:55:20" (1/1) ... [2023-08-26 06:55:20,366 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:55:20" (1/1) ... [2023-08-26 06:55:20,367 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:55:20" (1/1) ... [2023-08-26 06:55:20,368 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:55:20" (1/1) ... [2023-08-26 06:55:20,370 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 06:55:20,370 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 06:55:20,370 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 06:55:20,371 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 06:55:20,371 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:55:20" (1/1) ... [2023-08-26 06:55:20,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 06:55:20,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 06:55:20,396 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) [2023-08-26 06:55:20,402 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 [2023-08-26 06:55:20,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 06:55:20,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 06:55:20,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 06:55:20,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 06:55:20,426 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 06:55:20,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 06:55:20,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 06:55:20,426 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-26 06:55:20,426 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-26 06:55:20,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 06:55:20,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 06:55:20,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 06:55:20,428 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 06:55:20,551 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 06:55:20,553 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 06:55:20,752 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 06:55:20,757 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 06:55:20,757 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-26 06:55:20,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:55:20 BoogieIcfgContainer [2023-08-26 06:55:20,759 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 06:55:20,760 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 06:55:20,760 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 06:55:20,762 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 06:55:20,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 06:55:19" (1/3) ... [2023-08-26 06:55:20,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455a2268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:55:20, skipping insertion in model container [2023-08-26 06:55:20,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 06:55:20" (2/3) ... [2023-08-26 06:55:20,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455a2268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 06:55:20, skipping insertion in model container [2023-08-26 06:55:20,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 06:55:20" (3/3) ... [2023-08-26 06:55:20,764 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_26-malloc_struct.i [2023-08-26 06:55:20,780 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 06:55:20,780 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-08-26 06:55:20,781 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 06:55:20,837 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 06:55:20,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 93 transitions, 191 flow [2023-08-26 06:55:20,898 INFO L124 PetriNetUnfolderBase]: 0/92 cut-off events. [2023-08-26 06:55:20,899 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:55:20,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 92 events. 0/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-26 06:55:20,901 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 93 transitions, 191 flow [2023-08-26 06:55:20,904 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 92 transitions, 187 flow [2023-08-26 06:55:20,906 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 06:55:20,911 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 92 transitions, 187 flow [2023-08-26 06:55:20,913 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 92 transitions, 187 flow [2023-08-26 06:55:20,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 92 transitions, 187 flow [2023-08-26 06:55:20,928 INFO L124 PetriNetUnfolderBase]: 0/92 cut-off events. [2023-08-26 06:55:20,928 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:55:20,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 92 events. 0/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-26 06:55:20,929 INFO L119 LiptonReduction]: Number of co-enabled transitions 1860 [2023-08-26 06:55:22,486 INFO L134 LiptonReduction]: Checked pairs total: 12178 [2023-08-26 06:55:22,486 INFO L136 LiptonReduction]: Total number of compositions: 54 [2023-08-26 06:55:22,496 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 06:55:22,500 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;@2d4f4d90, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 06:55:22,500 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-08-26 06:55:22,501 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 06:55:22,502 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-08-26 06:55:22,502 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:55:22,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:55:22,502 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 06:55:22,502 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-26 06:55:22,506 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:55:22,506 INFO L85 PathProgramCache]: Analyzing trace with hash 301, now seen corresponding path program 1 times [2023-08-26 06:55:22,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:55:22,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794843456] [2023-08-26 06:55:22,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:55:22,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:55:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:55:22,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:55:22,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:55:22,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794843456] [2023-08-26 06:55:22,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794843456] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:55:22,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:55:22,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 06:55:22,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743960521] [2023-08-26 06:55:22,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:55:22,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 06:55:22,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:55:22,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 06:55:22,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 06:55:22,611 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 147 [2023-08-26 06:55:22,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 45 transitions, 93 flow. Second operand has 2 states, 2 states have (on average 92.5) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:22,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:55:22,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 147 [2023-08-26 06:55:22,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:55:22,656 INFO L124 PetriNetUnfolderBase]: 30/173 cut-off events. [2023-08-26 06:55:22,656 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:55:22,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 173 events. 30/173 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 700 event pairs, 30 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 242. Up to 74 conditions per place. [2023-08-26 06:55:22,659 INFO L140 encePairwiseOnDemand]: 145/147 looper letters, 13 selfloop transitions, 0 changer transitions 0/43 dead transitions. [2023-08-26 06:55:22,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 43 transitions, 115 flow [2023-08-26 06:55:22,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 06:55:22,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 06:55:22,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 199 transitions. [2023-08-26 06:55:22,668 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6768707482993197 [2023-08-26 06:55:22,668 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 199 transitions. [2023-08-26 06:55:22,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 199 transitions. [2023-08-26 06:55:22,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:55:22,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 199 transitions. [2023-08-26 06:55:22,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 99.5) internal successors, (199), 2 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:22,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:22,675 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:22,676 INFO L175 Difference]: Start difference. First operand has 49 places, 45 transitions, 93 flow. Second operand 2 states and 199 transitions. [2023-08-26 06:55:22,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 43 transitions, 115 flow [2023-08-26 06:55:22,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 43 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 06:55:22,679 INFO L231 Difference]: Finished difference. Result has 47 places, 43 transitions, 88 flow [2023-08-26 06:55:22,680 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=88, PETRI_PLACES=47, PETRI_TRANSITIONS=43} [2023-08-26 06:55:22,683 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -2 predicate places. [2023-08-26 06:55:22,683 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 43 transitions, 88 flow [2023-08-26 06:55:22,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 92.5) internal successors, (185), 2 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:22,683 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:55:22,683 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-26 06:55:22,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 06:55:22,684 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-26 06:55:22,684 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:55:22,684 INFO L85 PathProgramCache]: Analyzing trace with hash 285614288, now seen corresponding path program 1 times [2023-08-26 06:55:22,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:55:22,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848415136] [2023-08-26 06:55:22,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:55:22,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:55:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:55:22,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:55:22,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:55:22,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848415136] [2023-08-26 06:55:22,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848415136] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:55:22,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:55:22,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-26 06:55:22,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804939091] [2023-08-26 06:55:22,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:55:22,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:55:22,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:55:22,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:55:22,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:55:22,751 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 147 [2023-08-26 06:55:22,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 43 transitions, 88 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:22,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:55:22,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 147 [2023-08-26 06:55:22,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:55:22,789 INFO L124 PetriNetUnfolderBase]: 60/260 cut-off events. [2023-08-26 06:55:22,790 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:55:22,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 403 conditions, 260 events. 60/260 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1164 event pairs, 60 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 400. Up to 138 conditions per place. [2023-08-26 06:55:22,791 INFO L140 encePairwiseOnDemand]: 143/147 looper letters, 17 selfloop transitions, 1 changer transitions 0/40 dead transitions. [2023-08-26 06:55:22,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 40 transitions, 118 flow [2023-08-26 06:55:22,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:55:22,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:55:22,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2023-08-26 06:55:22,793 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2023-08-26 06:55:22,793 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 252 transitions. [2023-08-26 06:55:22,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 252 transitions. [2023-08-26 06:55:22,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:55:22,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 252 transitions. [2023-08-26 06:55:22,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:22,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:22,795 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:22,796 INFO L175 Difference]: Start difference. First operand has 47 places, 43 transitions, 88 flow. Second operand 3 states and 252 transitions. [2023-08-26 06:55:22,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 40 transitions, 118 flow [2023-08-26 06:55:22,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 40 transitions, 118 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 06:55:22,796 INFO L231 Difference]: Finished difference. Result has 46 places, 40 transitions, 84 flow [2023-08-26 06:55:22,797 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=46, PETRI_TRANSITIONS=40} [2023-08-26 06:55:22,797 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2023-08-26 06:55:22,797 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 40 transitions, 84 flow [2023-08-26 06:55:22,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:22,798 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:55:22,798 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:55:22,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 06:55:22,798 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-26 06:55:22,798 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:55:22,799 INFO L85 PathProgramCache]: Analyzing trace with hash 4537460, now seen corresponding path program 1 times [2023-08-26 06:55:22,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:55:22,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328464955] [2023-08-26 06:55:22,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:55:22,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:55:22,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:55:23,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:55:23,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:55:23,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328464955] [2023-08-26 06:55:23,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328464955] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:55:23,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:55:23,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 06:55:23,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433837789] [2023-08-26 06:55:23,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:55:23,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:55:23,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:55:23,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:55:23,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 06:55:23,051 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 147 [2023-08-26 06:55:23,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 40 transitions, 84 flow. Second operand has 6 states, 6 states have (on average 61.5) internal successors, (369), 6 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:23,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:55:23,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 147 [2023-08-26 06:55:23,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:55:23,332 INFO L124 PetriNetUnfolderBase]: 335/736 cut-off events. [2023-08-26 06:55:23,332 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 06:55:23,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1453 conditions, 736 events. 335/736 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3502 event pairs, 190 based on Foata normal form. 0/642 useless extension candidates. Maximal degree in co-relation 1449. Up to 540 conditions per place. [2023-08-26 06:55:23,336 INFO L140 encePairwiseOnDemand]: 132/147 looper letters, 77 selfloop transitions, 37 changer transitions 0/120 dead transitions. [2023-08-26 06:55:23,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 120 transitions, 472 flow [2023-08-26 06:55:23,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:55:23,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:55:23,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 475 transitions. [2023-08-26 06:55:23,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5385487528344671 [2023-08-26 06:55:23,348 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 475 transitions. [2023-08-26 06:55:23,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 475 transitions. [2023-08-26 06:55:23,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:55:23,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 475 transitions. [2023-08-26 06:55:23,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.16666666666667) internal successors, (475), 6 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:23,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:23,351 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:23,351 INFO L175 Difference]: Start difference. First operand has 46 places, 40 transitions, 84 flow. Second operand 6 states and 475 transitions. [2023-08-26 06:55:23,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 120 transitions, 472 flow [2023-08-26 06:55:23,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 120 transitions, 471 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 06:55:23,353 INFO L231 Difference]: Finished difference. Result has 54 places, 78 transitions, 316 flow [2023-08-26 06:55:23,353 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=316, PETRI_PLACES=54, PETRI_TRANSITIONS=78} [2023-08-26 06:55:23,353 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 5 predicate places. [2023-08-26 06:55:23,354 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 78 transitions, 316 flow [2023-08-26 06:55:23,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.5) internal successors, (369), 6 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:23,354 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:55:23,354 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:55:23,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 06:55:23,354 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-26 06:55:23,354 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:55:23,354 INFO L85 PathProgramCache]: Analyzing trace with hash 431746594, now seen corresponding path program 1 times [2023-08-26 06:55:23,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:55:23,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007287665] [2023-08-26 06:55:23,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:55:23,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:55:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:55:23,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:55:23,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:55:23,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007287665] [2023-08-26 06:55:23,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007287665] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:55:23,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:55:23,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 06:55:23,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365830219] [2023-08-26 06:55:23,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:55:23,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:55:23,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:55:23,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:55:23,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 06:55:23,583 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 147 [2023-08-26 06:55:23,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 78 transitions, 316 flow. Second operand has 6 states, 6 states have (on average 63.666666666666664) internal successors, (382), 6 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:23,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:55:23,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 147 [2023-08-26 06:55:23,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:55:23,916 INFO L124 PetriNetUnfolderBase]: 568/1291 cut-off events. [2023-08-26 06:55:23,916 INFO L125 PetriNetUnfolderBase]: For 365/365 co-relation queries the response was YES. [2023-08-26 06:55:23,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3414 conditions, 1291 events. 568/1291 cut-off events. For 365/365 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 7682 event pairs, 71 based on Foata normal form. 17/1228 useless extension candidates. Maximal degree in co-relation 3406. Up to 526 conditions per place. [2023-08-26 06:55:23,921 INFO L140 encePairwiseOnDemand]: 136/147 looper letters, 156 selfloop transitions, 32 changer transitions 0/194 dead transitions. [2023-08-26 06:55:23,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 194 transitions, 1064 flow [2023-08-26 06:55:23,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:55:23,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:55:23,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 515 transitions. [2023-08-26 06:55:23,923 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5839002267573696 [2023-08-26 06:55:23,923 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 515 transitions. [2023-08-26 06:55:23,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 515 transitions. [2023-08-26 06:55:23,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:55:23,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 515 transitions. [2023-08-26 06:55:23,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 85.83333333333333) internal successors, (515), 6 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:23,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:23,925 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:23,925 INFO L175 Difference]: Start difference. First operand has 54 places, 78 transitions, 316 flow. Second operand 6 states and 515 transitions. [2023-08-26 06:55:23,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 194 transitions, 1064 flow [2023-08-26 06:55:23,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 194 transitions, 1064 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 06:55:23,930 INFO L231 Difference]: Finished difference. Result has 63 places, 104 transitions, 574 flow [2023-08-26 06:55:23,930 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=574, PETRI_PLACES=63, PETRI_TRANSITIONS=104} [2023-08-26 06:55:23,931 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 14 predicate places. [2023-08-26 06:55:23,931 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 104 transitions, 574 flow [2023-08-26 06:55:23,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.666666666666664) internal successors, (382), 6 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:23,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:55:23,931 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:55:23,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 06:55:23,931 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-26 06:55:23,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:55:23,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1367672375, now seen corresponding path program 1 times [2023-08-26 06:55:23,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:55:23,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751674637] [2023-08-26 06:55:23,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:55:23,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:55:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:55:23,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:55:23,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:55:23,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751674637] [2023-08-26 06:55:23,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751674637] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:55:23,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:55:23,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 06:55:23,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276969474] [2023-08-26 06:55:23,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:55:23,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-26 06:55:23,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:55:23,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-26 06:55:23,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-26 06:55:23,967 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 147 [2023-08-26 06:55:23,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 104 transitions, 574 flow. Second operand has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:23,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:55:23,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 147 [2023-08-26 06:55:23,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:55:23,999 INFO L124 PetriNetUnfolderBase]: 45/203 cut-off events. [2023-08-26 06:55:23,999 INFO L125 PetriNetUnfolderBase]: For 102/103 co-relation queries the response was YES. [2023-08-26 06:55:23,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 505 conditions, 203 events. 45/203 cut-off events. For 102/103 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 757 event pairs, 9 based on Foata normal form. 9/207 useless extension candidates. Maximal degree in co-relation 492. Up to 64 conditions per place. [2023-08-26 06:55:24,000 INFO L140 encePairwiseOnDemand]: 143/147 looper letters, 14 selfloop transitions, 4 changer transitions 0/62 dead transitions. [2023-08-26 06:55:24,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 62 transitions, 296 flow [2023-08-26 06:55:24,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-26 06:55:24,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-26 06:55:24,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2023-08-26 06:55:24,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5986394557823129 [2023-08-26 06:55:24,002 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 264 transitions. [2023-08-26 06:55:24,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 264 transitions. [2023-08-26 06:55:24,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:55:24,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 264 transitions. [2023-08-26 06:55:24,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:24,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:24,004 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:24,004 INFO L175 Difference]: Start difference. First operand has 63 places, 104 transitions, 574 flow. Second operand 3 states and 264 transitions. [2023-08-26 06:55:24,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 62 transitions, 296 flow [2023-08-26 06:55:24,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 62 transitions, 256 flow, removed 13 selfloop flow, removed 7 redundant places. [2023-08-26 06:55:24,006 INFO L231 Difference]: Finished difference. Result has 57 places, 60 transitions, 224 flow [2023-08-26 06:55:24,006 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=57, PETRI_TRANSITIONS=60} [2023-08-26 06:55:24,007 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 8 predicate places. [2023-08-26 06:55:24,007 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 60 transitions, 224 flow [2023-08-26 06:55:24,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:24,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:55:24,007 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:55:24,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 06:55:24,007 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-26 06:55:24,008 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:55:24,008 INFO L85 PathProgramCache]: Analyzing trace with hash 2058288517, now seen corresponding path program 1 times [2023-08-26 06:55:24,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:55:24,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895369995] [2023-08-26 06:55:24,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:55:24,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:55:24,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:55:24,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:55:24,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:55:24,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895369995] [2023-08-26 06:55:24,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895369995] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:55:24,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:55:24,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 06:55:24,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008474218] [2023-08-26 06:55:24,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:55:24,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:55:24,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:55:24,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:55:24,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 06:55:24,234 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 147 [2023-08-26 06:55:24,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 60 transitions, 224 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:24,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:55:24,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 147 [2023-08-26 06:55:24,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:55:24,455 INFO L124 PetriNetUnfolderBase]: 171/452 cut-off events. [2023-08-26 06:55:24,455 INFO L125 PetriNetUnfolderBase]: For 144/147 co-relation queries the response was YES. [2023-08-26 06:55:24,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1204 conditions, 452 events. 171/452 cut-off events. For 144/147 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2034 event pairs, 25 based on Foata normal form. 0/417 useless extension candidates. Maximal degree in co-relation 1194. Up to 289 conditions per place. [2023-08-26 06:55:24,458 INFO L140 encePairwiseOnDemand]: 133/147 looper letters, 68 selfloop transitions, 44 changer transitions 8/128 dead transitions. [2023-08-26 06:55:24,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 128 transitions, 697 flow [2023-08-26 06:55:24,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:55:24,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:55:24,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 480 transitions. [2023-08-26 06:55:24,470 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.54421768707483 [2023-08-26 06:55:24,470 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 480 transitions. [2023-08-26 06:55:24,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 480 transitions. [2023-08-26 06:55:24,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:55:24,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 480 transitions. [2023-08-26 06:55:24,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 80.0) internal successors, (480), 6 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:24,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:24,473 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:24,473 INFO L175 Difference]: Start difference. First operand has 57 places, 60 transitions, 224 flow. Second operand 6 states and 480 transitions. [2023-08-26 06:55:24,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 128 transitions, 697 flow [2023-08-26 06:55:24,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 128 transitions, 685 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 06:55:24,475 INFO L231 Difference]: Finished difference. Result has 66 places, 99 transitions, 568 flow [2023-08-26 06:55:24,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=568, PETRI_PLACES=66, PETRI_TRANSITIONS=99} [2023-08-26 06:55:24,476 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 17 predicate places. [2023-08-26 06:55:24,476 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 99 transitions, 568 flow [2023-08-26 06:55:24,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:24,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:55:24,476 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:55:24,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 06:55:24,477 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-26 06:55:24,477 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:55:24,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1299235815, now seen corresponding path program 1 times [2023-08-26 06:55:24,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:55:24,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430946359] [2023-08-26 06:55:24,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:55:24,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:55:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:55:24,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:55:24,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:55:24,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430946359] [2023-08-26 06:55:24,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430946359] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:55:24,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:55:24,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 06:55:24,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134851305] [2023-08-26 06:55:24,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:55:24,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 06:55:24,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:55:24,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 06:55:24,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 06:55:24,637 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 147 [2023-08-26 06:55:24,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 99 transitions, 568 flow. Second operand has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:24,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:55:24,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 147 [2023-08-26 06:55:24,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:55:24,730 INFO L124 PetriNetUnfolderBase]: 194/506 cut-off events. [2023-08-26 06:55:24,730 INFO L125 PetriNetUnfolderBase]: For 409/409 co-relation queries the response was YES. [2023-08-26 06:55:24,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1788 conditions, 506 events. 194/506 cut-off events. For 409/409 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2330 event pairs, 47 based on Foata normal form. 0/492 useless extension candidates. Maximal degree in co-relation 1773. Up to 427 conditions per place. [2023-08-26 06:55:24,732 INFO L140 encePairwiseOnDemand]: 137/147 looper letters, 92 selfloop transitions, 25 changer transitions 11/134 dead transitions. [2023-08-26 06:55:24,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 134 transitions, 1008 flow [2023-08-26 06:55:24,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 06:55:24,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 06:55:24,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 426 transitions. [2023-08-26 06:55:24,734 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48299319727891155 [2023-08-26 06:55:24,734 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 426 transitions. [2023-08-26 06:55:24,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 426 transitions. [2023-08-26 06:55:24,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:55:24,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 426 transitions. [2023-08-26 06:55:24,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 71.0) internal successors, (426), 6 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:24,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:24,736 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:24,736 INFO L175 Difference]: Start difference. First operand has 66 places, 99 transitions, 568 flow. Second operand 6 states and 426 transitions. [2023-08-26 06:55:24,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 134 transitions, 1008 flow [2023-08-26 06:55:24,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 134 transitions, 990 flow, removed 9 selfloop flow, removed 0 redundant places. [2023-08-26 06:55:24,740 INFO L231 Difference]: Finished difference. Result has 75 places, 115 transitions, 733 flow [2023-08-26 06:55:24,740 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=733, PETRI_PLACES=75, PETRI_TRANSITIONS=115} [2023-08-26 06:55:24,741 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 26 predicate places. [2023-08-26 06:55:24,741 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 115 transitions, 733 flow [2023-08-26 06:55:24,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:24,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:55:24,741 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:55:24,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 06:55:24,741 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-26 06:55:24,742 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:55:24,742 INFO L85 PathProgramCache]: Analyzing trace with hash -692141260, now seen corresponding path program 1 times [2023-08-26 06:55:24,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:55:24,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351800900] [2023-08-26 06:55:24,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:55:24,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:55:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:55:25,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:55:25,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:55:25,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351800900] [2023-08-26 06:55:25,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351800900] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:55:25,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:55:25,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-26 06:55:25,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096224323] [2023-08-26 06:55:25,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:55:25,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-26 06:55:25,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:55:25,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-26 06:55:25,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-08-26 06:55:25,025 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 147 [2023-08-26 06:55:25,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 115 transitions, 733 flow. Second operand has 8 states, 8 states have (on average 59.375) internal successors, (475), 8 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:25,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:55:25,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 147 [2023-08-26 06:55:25,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:55:25,172 INFO L124 PetriNetUnfolderBase]: 179/452 cut-off events. [2023-08-26 06:55:25,172 INFO L125 PetriNetUnfolderBase]: For 484/484 co-relation queries the response was YES. [2023-08-26 06:55:25,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1796 conditions, 452 events. 179/452 cut-off events. For 484/484 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1934 event pairs, 40 based on Foata normal form. 11/449 useless extension candidates. Maximal degree in co-relation 1776. Up to 305 conditions per place. [2023-08-26 06:55:25,175 INFO L140 encePairwiseOnDemand]: 140/147 looper letters, 113 selfloop transitions, 26 changer transitions 8/153 dead transitions. [2023-08-26 06:55:25,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 153 transitions, 1271 flow [2023-08-26 06:55:25,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 06:55:25,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 06:55:25,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 460 transitions. [2023-08-26 06:55:25,176 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44703595724003886 [2023-08-26 06:55:25,176 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 460 transitions. [2023-08-26 06:55:25,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 460 transitions. [2023-08-26 06:55:25,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:55:25,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 460 transitions. [2023-08-26 06:55:25,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 65.71428571428571) internal successors, (460), 7 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:25,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 147.0) internal successors, (1176), 8 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:25,179 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 147.0) internal successors, (1176), 8 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:25,179 INFO L175 Difference]: Start difference. First operand has 75 places, 115 transitions, 733 flow. Second operand 7 states and 460 transitions. [2023-08-26 06:55:25,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 153 transitions, 1271 flow [2023-08-26 06:55:25,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 153 transitions, 1203 flow, removed 28 selfloop flow, removed 2 redundant places. [2023-08-26 06:55:25,185 INFO L231 Difference]: Finished difference. Result has 78 places, 114 transitions, 713 flow [2023-08-26 06:55:25,185 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=713, PETRI_PLACES=78, PETRI_TRANSITIONS=114} [2023-08-26 06:55:25,185 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 29 predicate places. [2023-08-26 06:55:25,186 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 114 transitions, 713 flow [2023-08-26 06:55:25,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 59.375) internal successors, (475), 8 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:25,186 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:55:25,186 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:55:25,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 06:55:25,186 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-26 06:55:25,186 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:55:25,186 INFO L85 PathProgramCache]: Analyzing trace with hash -109767740, now seen corresponding path program 1 times [2023-08-26 06:55:25,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:55:25,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538308978] [2023-08-26 06:55:25,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:55:25,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:55:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 06:55:25,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 06:55:25,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 06:55:25,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538308978] [2023-08-26 06:55:25,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538308978] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 06:55:25,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 06:55:25,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-26 06:55:25,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487599190] [2023-08-26 06:55:25,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 06:55:25,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-08-26 06:55:25,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 06:55:25,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-08-26 06:55:25,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-08-26 06:55:25,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 147 [2023-08-26 06:55:25,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 114 transitions, 713 flow. Second operand has 8 states, 8 states have (on average 61.375) internal successors, (491), 8 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:25,525 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 06:55:25,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 147 [2023-08-26 06:55:25,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 06:55:25,786 INFO L124 PetriNetUnfolderBase]: 215/540 cut-off events. [2023-08-26 06:55:25,786 INFO L125 PetriNetUnfolderBase]: For 724/724 co-relation queries the response was YES. [2023-08-26 06:55:25,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2176 conditions, 540 events. 215/540 cut-off events. For 724/724 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2518 event pairs, 26 based on Foata normal form. 16/530 useless extension candidates. Maximal degree in co-relation 2157. Up to 164 conditions per place. [2023-08-26 06:55:25,788 INFO L140 encePairwiseOnDemand]: 135/147 looper letters, 128 selfloop transitions, 52 changer transitions 11/197 dead transitions. [2023-08-26 06:55:25,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 197 transitions, 1602 flow [2023-08-26 06:55:25,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 06:55:25,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 06:55:25,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 522 transitions. [2023-08-26 06:55:25,790 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5072886297376094 [2023-08-26 06:55:25,790 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 522 transitions. [2023-08-26 06:55:25,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 522 transitions. [2023-08-26 06:55:25,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 06:55:25,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 522 transitions. [2023-08-26 06:55:25,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 74.57142857142857) internal successors, (522), 7 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:25,793 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 147.0) internal successors, (1176), 8 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:25,793 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 147.0) internal successors, (1176), 8 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:25,793 INFO L175 Difference]: Start difference. First operand has 78 places, 114 transitions, 713 flow. Second operand 7 states and 522 transitions. [2023-08-26 06:55:25,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 197 transitions, 1602 flow [2023-08-26 06:55:25,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 197 transitions, 1496 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-08-26 06:55:25,800 INFO L231 Difference]: Finished difference. Result has 82 places, 131 transitions, 975 flow [2023-08-26 06:55:25,800 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=147, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=975, PETRI_PLACES=82, PETRI_TRANSITIONS=131} [2023-08-26 06:55:25,801 INFO L281 CegarLoopForPetriNet]: 49 programPoint places, 33 predicate places. [2023-08-26 06:55:25,801 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 131 transitions, 975 flow [2023-08-26 06:55:25,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 61.375) internal successors, (491), 8 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 06:55:25,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 06:55:25,802 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:55:25,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 06:55:25,802 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-08-26 06:55:25,802 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 06:55:25,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1765007921, now seen corresponding path program 1 times [2023-08-26 06:55:25,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 06:55:25,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078079436] [2023-08-26 06:55:25,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 06:55:25,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 06:55:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 06:55:25,818 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 06:55:25,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 06:55:25,841 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 06:55:25,841 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 06:55:25,842 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 14 remaining) [2023-08-26 06:55:25,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 14 remaining) [2023-08-26 06:55:25,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 14 remaining) [2023-08-26 06:55:25,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 14 remaining) [2023-08-26 06:55:25,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 14 remaining) [2023-08-26 06:55:25,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 14 remaining) [2023-08-26 06:55:25,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 14 remaining) [2023-08-26 06:55:25,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 14 remaining) [2023-08-26 06:55:25,843 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 14 remaining) [2023-08-26 06:55:25,844 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 14 remaining) [2023-08-26 06:55:25,844 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 14 remaining) [2023-08-26 06:55:25,844 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 14 remaining) [2023-08-26 06:55:25,844 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 14 remaining) [2023-08-26 06:55:25,844 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 14 remaining) [2023-08-26 06:55:25,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 06:55:25,844 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 06:55:25,848 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 06:55:25,848 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 06:55:25,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 06:55:25 BasicIcfg [2023-08-26 06:55:25,872 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 06:55:25,872 INFO L158 Benchmark]: Toolchain (without parser) took 6087.53ms. Allocated memory was 404.8MB in the beginning and 591.4MB in the end (delta: 186.6MB). Free memory was 378.7MB in the beginning and 415.1MB in the end (delta: -36.4MB). Peak memory consumption was 152.0MB. Max. memory is 16.0GB. [2023-08-26 06:55:25,872 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 404.8MB. Free memory is still 381.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 06:55:25,873 INFO L158 Benchmark]: CACSL2BoogieTranslator took 520.17ms. Allocated memory is still 404.8MB. Free memory was 378.7MB in the beginning and 340.9MB in the end (delta: 37.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2023-08-26 06:55:25,873 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.46ms. Allocated memory is still 404.8MB. Free memory was 340.9MB in the beginning and 338.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 06:55:25,873 INFO L158 Benchmark]: Boogie Preprocessor took 26.96ms. Allocated memory is still 404.8MB. Free memory was 338.4MB in the beginning and 336.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 06:55:25,873 INFO L158 Benchmark]: RCFGBuilder took 388.24ms. Allocated memory is still 404.8MB. Free memory was 336.7MB in the beginning and 372.1MB in the end (delta: -35.4MB). Peak memory consumption was 11.5MB. Max. memory is 16.0GB. [2023-08-26 06:55:25,873 INFO L158 Benchmark]: TraceAbstraction took 5111.99ms. Allocated memory was 404.8MB in the beginning and 591.4MB in the end (delta: 186.6MB). Free memory was 371.0MB in the beginning and 415.1MB in the end (delta: -44.0MB). Peak memory consumption was 142.6MB. Max. memory is 16.0GB. [2023-08-26 06:55:25,874 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 404.8MB. Free memory is still 381.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 520.17ms. Allocated memory is still 404.8MB. Free memory was 378.7MB in the beginning and 340.9MB in the end (delta: 37.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 29.46ms. Allocated memory is still 404.8MB. Free memory was 340.9MB in the beginning and 338.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.96ms. Allocated memory is still 404.8MB. Free memory was 338.4MB in the beginning and 336.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 388.24ms. Allocated memory is still 404.8MB. Free memory was 336.7MB in the beginning and 372.1MB in the end (delta: -35.4MB). Peak memory consumption was 11.5MB. Max. memory is 16.0GB. * TraceAbstraction took 5111.99ms. Allocated memory was 404.8MB in the beginning and 591.4MB in the end (delta: 186.6MB). Free memory was 371.0MB in the beginning and 415.1MB in the end (delta: -44.0MB). Peak memory consumption was 142.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 261]: Unsoundness Warning unspecified type, defaulting to int C: short [261] - GenericResultAtLocation [Line: 261]: Unsoundness Warning unspecified type, defaulting to int C: short [261] - GenericResultAtLocation [Line: 1044]: Unsoundness Warning unspecified type, defaulting to int C: unsigned short [1044] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6s, 96 PlacesBefore, 49 PlacesAfterwards, 92 TransitionsBefore, 45 TransitionsAfterwards, 1860 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, 12178 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3004, independent: 2482, independent conditional: 0, independent unconditional: 2482, dependent: 522, dependent conditional: 0, dependent unconditional: 522, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 831, independent: 752, independent conditional: 0, independent unconditional: 752, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3004, independent: 1730, independent conditional: 0, independent unconditional: 1730, dependent: 443, dependent conditional: 0, dependent unconditional: 443, unknown: 831, unknown conditional: 0, unknown unconditional: 831] , Statistics on independence cache: Total cache size (in pairs): 207, Positive cache size: 163, Positive conditional cache size: 0, Positive unconditional cache size: 163, Negative cache size: 44, Negative conditional cache size: 0, Negative unconditional cache size: 44, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1245]: Data race detected Data race detected The following path leads to a data race: [L1227] 0 data *d; [L1228] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1237] 0 pthread_t id; [L1238] 0 data *z; [L1239] 0 d = malloc(sizeof(data)) [L1240] 0 z = d [L1241] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, d={-2:0}, id={9:0}, m={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, z={-2:0}] [L1243] EXPR 0 d->x VAL [arg={0:0}, d->x=25, d={-2:0}, id={9:0}, m={1:0}, z={-2:0}] [L1243] 0 printf("%d\n",d->x) [L1231] EXPR 1 d->x VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1231] 1 d->x = 3 VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1245] EXPR 0 z->y VAL [arg={0:0}, arg={0:0}, d={-2:0}, id={9:0}, m={1:0}, z->y=27, z={-2:0}] [L1232] EXPR 1 d->y VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1232] 1 d->y = 8 VAL [arg={0:0}, arg={0:0}, d={-2:0}, m={1:0}] [L1232] 1 d->y = 8 VAL [arg={0:0}, arg={0:0}, d->y = 8=28, d={-2:0}, m={1:0}] [L1245] 0 printf("%d\n",z->y) VAL [arg={0:0}, arg={0:0}, d->y = 8=28, d={-2:0}, id={9:0}, m={1:0}, z->y=27, z={-2:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: d->x = 3 [1231] * C: d->y = 8 [1232] * C: d->x = 3 [1231] * C: d->x = 3 [1231] * C: d->x = 3 [1231] * C: d = malloc(sizeof(data)) [1239] and C: printf("%d\n",z->y) [1245] - UnprovableResult [Line: 1239]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1243]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1231]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1232]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 126 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: 5.0s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 225 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 225 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 130 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1518 IncrementalHoareTripleChecker+Invalid, 1648 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 130 mSolverCounterUnsat, 63 mSDtfsCounter, 1518 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=975occurred in iteration=9, InterpolantAutomatonStates: 46, 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, 1.5s InterpolantComputationTime, 158 NumberOfCodeBlocks, 158 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 1064 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 RESULT: Ultimate proved your program to be incorrect! [2023-08-26 06:55:25,905 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...