/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/pthread-atomic/szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 22:02:16,653 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 22:02:16,698 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 22:02:16,702 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 22:02:16,703 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 22:02:16,722 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 22:02:16,723 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 22:02:16,723 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 22:02:16,723 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 22:02:16,724 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 22:02:16,724 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 22:02:16,725 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 22:02:16,725 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 22:02:16,725 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 22:02:16,725 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 22:02:16,726 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 22:02:16,726 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 22:02:16,727 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 22:02:16,727 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 22:02:16,727 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 22:02:16,728 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 22:02:16,728 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 22:02:16,728 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 22:02:16,729 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 22:02:16,729 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 22:02:16,729 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 22:02:16,730 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 22:02:16,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 22:02:16,731 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 22:02:16,731 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 22:02:16,731 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 22:02:16,732 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 22:02:16,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 22:02:16,732 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 22:02:16,733 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 22:02:16,733 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 22:02:17,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 22:02:17,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 22:02:17,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 22:02:17,020 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 22:02:17,020 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 22:02:17,022 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2023-08-25 22:02:18,201 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 22:02:18,470 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 22:02:18,470 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i [2023-08-25 22:02:18,484 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92c8b6812/a7d88ef9b5e0447c98d37f67addcb639/FLAG85b81190f [2023-08-25 22:02:18,496 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92c8b6812/a7d88ef9b5e0447c98d37f67addcb639 [2023-08-25 22:02:18,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 22:02:18,500 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 22:02:18,501 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 22:02:18,501 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 22:02:18,503 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 22:02:18,504 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 10:02:18" (1/1) ... [2023-08-25 22:02:18,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e5fd22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:18, skipping insertion in model container [2023-08-25 22:02:18,505 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 10:02:18" (1/1) ... [2023-08-25 22:02:18,549 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 22:02:18,742 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-25 22:02:18,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 22:02:18,924 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 22:02:18,946 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-25 22:02:18,958 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [265] [2023-08-25 22:02:18,959 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [265] [2023-08-25 22:02:18,994 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 22:02:19,031 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 22:02:19,031 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 22:02:19,031 WARN L669 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 22:02:19,037 INFO L206 MainTranslator]: Completed translation [2023-08-25 22:02:19,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:19 WrapperNode [2023-08-25 22:02:19,039 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 22:02:19,040 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 22:02:19,040 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 22:02:19,041 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 22:02:19,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:19" (1/1) ... [2023-08-25 22:02:19,079 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:19" (1/1) ... [2023-08-25 22:02:19,114 INFO L138 Inliner]: procedures = 171, calls = 77, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 278 [2023-08-25 22:02:19,114 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 22:02:19,115 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 22:02:19,115 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 22:02:19,115 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 22:02:19,123 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:19" (1/1) ... [2023-08-25 22:02:19,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:19" (1/1) ... [2023-08-25 22:02:19,134 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:19" (1/1) ... [2023-08-25 22:02:19,134 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:19" (1/1) ... [2023-08-25 22:02:19,141 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:19" (1/1) ... [2023-08-25 22:02:19,161 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:19" (1/1) ... [2023-08-25 22:02:19,163 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:19" (1/1) ... [2023-08-25 22:02:19,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:19" (1/1) ... [2023-08-25 22:02:19,167 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 22:02:19,167 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 22:02:19,167 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 22:02:19,168 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 22:02:19,168 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:19" (1/1) ... [2023-08-25 22:02:19,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 22:02:19,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 22:02:19,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 22:02:19,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 22:02:19,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 22:02:19,246 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-08-25 22:02:19,246 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-08-25 22:02:19,246 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-25 22:02:19,246 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-25 22:02:19,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 22:02:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 22:02:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 22:02:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 22:02:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 22:02:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 22:02:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 22:02:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 22:02:19,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 22:02:19,249 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 22:02:19,354 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 22:02:19,356 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 22:02:19,664 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 22:02:19,719 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 22:02:19,719 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-08-25 22:02:19,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 10:02:19 BoogieIcfgContainer [2023-08-25 22:02:19,724 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 22:02:19,727 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 22:02:19,728 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 22:02:19,730 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 22:02:19,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 10:02:18" (1/3) ... [2023-08-25 22:02:19,731 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197a587f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 10:02:19, skipping insertion in model container [2023-08-25 22:02:19,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 10:02:19" (2/3) ... [2023-08-25 22:02:19,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197a587f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 10:02:19, skipping insertion in model container [2023-08-25 22:02:19,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 10:02:19" (3/3) ... [2023-08-25 22:02:19,733 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski.i [2023-08-25 22:02:19,749 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 22:02:19,749 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2023-08-25 22:02:19,750 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 22:02:19,808 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 22:02:19,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 179 transitions, 374 flow [2023-08-25 22:02:19,926 INFO L124 PetriNetUnfolderBase]: 22/177 cut-off events. [2023-08-25 22:02:19,927 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 22:02:19,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 177 events. 22/177 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 420 event pairs, 0 based on Foata normal form. 0/119 useless extension candidates. Maximal degree in co-relation 145. Up to 3 conditions per place. [2023-08-25 22:02:19,938 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 179 transitions, 374 flow [2023-08-25 22:02:19,946 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 168 transitions, 345 flow [2023-08-25 22:02:19,949 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 22:02:19,960 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 153 places, 168 transitions, 345 flow [2023-08-25 22:02:19,962 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 153 places, 168 transitions, 345 flow [2023-08-25 22:02:19,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 168 transitions, 345 flow [2023-08-25 22:02:19,992 INFO L124 PetriNetUnfolderBase]: 22/168 cut-off events. [2023-08-25 22:02:19,992 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 22:02:19,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 168 events. 22/168 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 419 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 145. Up to 3 conditions per place. [2023-08-25 22:02:20,000 INFO L119 LiptonReduction]: Number of co-enabled transitions 12096 [2023-08-25 22:02:22,138 INFO L134 LiptonReduction]: Checked pairs total: 27708 [2023-08-25 22:02:22,138 INFO L136 LiptonReduction]: Total number of compositions: 124 [2023-08-25 22:02:22,150 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 22:02:22,155 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;@6c938bd6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 22:02:22,156 INFO L358 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2023-08-25 22:02:22,158 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 22:02:22,158 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 22:02:22,158 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 22:02:22,159 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:02:22,159 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 22:02:22,160 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 22:02:22,164 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:02:22,164 INFO L85 PathProgramCache]: Analyzing trace with hash 908585, now seen corresponding path program 1 times [2023-08-25 22:02:22,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:02:22,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220266658] [2023-08-25 22:02:22,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:02:22,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:02:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:02:22,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:02:22,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:02:22,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220266658] [2023-08-25 22:02:22,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220266658] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:02:22,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:02:22,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 22:02:22,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189673255] [2023-08-25 22:02:22,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:02:22,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 22:02:22,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:02:22,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 22:02:22,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 22:02:22,338 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 303 [2023-08-25 22:02:22,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 89 transitions, 187 flow. Second operand has 2 states, 2 states have (on average 108.5) internal successors, (217), 2 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:22,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:02:22,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 303 [2023-08-25 22:02:22,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:02:22,629 INFO L124 PetriNetUnfolderBase]: 1224/2063 cut-off events. [2023-08-25 22:02:22,630 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-08-25 22:02:22,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3991 conditions, 2063 events. 1224/2063 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 9426 event pairs, 864 based on Foata normal form. 0/1525 useless extension candidates. Maximal degree in co-relation 3812. Up to 1872 conditions per place. [2023-08-25 22:02:22,647 INFO L140 encePairwiseOnDemand]: 271/303 looper letters, 49 selfloop transitions, 0 changer transitions 0/57 dead transitions. [2023-08-25 22:02:22,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 57 transitions, 221 flow [2023-08-25 22:02:22,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 22:02:22,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 22:02:22,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 295 transitions. [2023-08-25 22:02:22,664 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4867986798679868 [2023-08-25 22:02:22,664 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 295 transitions. [2023-08-25 22:02:22,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 295 transitions. [2023-08-25 22:02:22,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:02:22,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 295 transitions. [2023-08-25 22:02:22,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 147.5) internal successors, (295), 2 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:22,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 303.0) internal successors, (909), 3 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:22,678 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 303.0) internal successors, (909), 3 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:22,679 INFO L175 Difference]: Start difference. First operand has 84 places, 89 transitions, 187 flow. Second operand 2 states and 295 transitions. [2023-08-25 22:02:22,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 57 transitions, 221 flow [2023-08-25 22:02:22,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 57 transitions, 216 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 22:02:22,685 INFO L231 Difference]: Finished difference. Result has 52 places, 57 transitions, 118 flow [2023-08-25 22:02:22,687 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=118, PETRI_PLACES=52, PETRI_TRANSITIONS=57} [2023-08-25 22:02:22,691 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -32 predicate places. [2023-08-25 22:02:22,692 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 57 transitions, 118 flow [2023-08-25 22:02:22,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 108.5) internal successors, (217), 2 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:22,692 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:02:22,693 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:02:22,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 22:02:22,694 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 22:02:22,695 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:02:22,695 INFO L85 PathProgramCache]: Analyzing trace with hash -849058043, now seen corresponding path program 1 times [2023-08-25 22:02:22,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:02:22,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148876654] [2023-08-25 22:02:22,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:02:22,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:02:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:02:22,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:02:22,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:02:22,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148876654] [2023-08-25 22:02:22,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148876654] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:02:22,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:02:22,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 22:02:22,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031800782] [2023-08-25 22:02:22,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:02:22,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:02:22,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:02:22,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:02:22,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:02:22,782 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 303 [2023-08-25 22:02:22,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 57 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:22,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:02:22,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 303 [2023-08-25 22:02:22,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:02:23,130 INFO L124 PetriNetUnfolderBase]: 1777/2760 cut-off events. [2023-08-25 22:02:23,130 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-25 22:02:23,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5564 conditions, 2760 events. 1777/2760 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 11434 event pairs, 1177 based on Foata normal form. 0/2072 useless extension candidates. Maximal degree in co-relation 5561. Up to 2515 conditions per place. [2023-08-25 22:02:23,145 INFO L140 encePairwiseOnDemand]: 297/303 looper letters, 82 selfloop transitions, 5 changer transitions 0/87 dead transitions. [2023-08-25 22:02:23,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 87 transitions, 354 flow [2023-08-25 22:02:23,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:02:23,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:02:23,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2023-08-25 22:02:23,148 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40374037403740376 [2023-08-25 22:02:23,148 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2023-08-25 22:02:23,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2023-08-25 22:02:23,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:02:23,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2023-08-25 22:02:23,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:23,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:23,153 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:23,153 INFO L175 Difference]: Start difference. First operand has 52 places, 57 transitions, 118 flow. Second operand 3 states and 367 transitions. [2023-08-25 22:02:23,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 87 transitions, 354 flow [2023-08-25 22:02:23,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 87 transitions, 354 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 22:02:23,155 INFO L231 Difference]: Finished difference. Result has 56 places, 61 transitions, 156 flow [2023-08-25 22:02:23,155 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=56, PETRI_TRANSITIONS=61} [2023-08-25 22:02:23,156 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -28 predicate places. [2023-08-25 22:02:23,156 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 61 transitions, 156 flow [2023-08-25 22:02:23,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:23,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:02:23,157 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:02:23,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 22:02:23,157 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 22:02:23,158 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:02:23,158 INFO L85 PathProgramCache]: Analyzing trace with hash 99033478, now seen corresponding path program 1 times [2023-08-25 22:02:23,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:02:23,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251690926] [2023-08-25 22:02:23,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:02:23,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:02:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:02:23,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:02:23,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:02:23,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251690926] [2023-08-25 22:02:23,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251690926] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:02:23,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:02:23,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 22:02:23,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078812584] [2023-08-25 22:02:23,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:02:23,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:02:23,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:02:23,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:02:23,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:02:23,203 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 303 [2023-08-25 22:02:23,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 61 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:23,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:02:23,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 303 [2023-08-25 22:02:23,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:02:23,514 INFO L124 PetriNetUnfolderBase]: 1748/2741 cut-off events. [2023-08-25 22:02:23,514 INFO L125 PetriNetUnfolderBase]: For 249/249 co-relation queries the response was YES. [2023-08-25 22:02:23,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5958 conditions, 2741 events. 1748/2741 cut-off events. For 249/249 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 11505 event pairs, 659 based on Foata normal form. 0/2137 useless extension candidates. Maximal degree in co-relation 5953. Up to 1403 conditions per place. [2023-08-25 22:02:23,529 INFO L140 encePairwiseOnDemand]: 295/303 looper letters, 108 selfloop transitions, 8 changer transitions 0/116 dead transitions. [2023-08-25 22:02:23,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 116 transitions, 523 flow [2023-08-25 22:02:23,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:02:23,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:02:23,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2023-08-25 22:02:23,531 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4367436743674367 [2023-08-25 22:02:23,531 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 397 transitions. [2023-08-25 22:02:23,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 397 transitions. [2023-08-25 22:02:23,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:02:23,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 397 transitions. [2023-08-25 22:02:23,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.33333333333334) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:23,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:23,535 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:23,535 INFO L175 Difference]: Start difference. First operand has 56 places, 61 transitions, 156 flow. Second operand 3 states and 397 transitions. [2023-08-25 22:02:23,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 116 transitions, 523 flow [2023-08-25 22:02:23,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 116 transitions, 507 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 22:02:23,541 INFO L231 Difference]: Finished difference. Result has 58 places, 68 transitions, 220 flow [2023-08-25 22:02:23,541 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=58, PETRI_TRANSITIONS=68} [2023-08-25 22:02:23,542 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -26 predicate places. [2023-08-25 22:02:23,542 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 68 transitions, 220 flow [2023-08-25 22:02:23,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:23,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:02:23,543 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:02:23,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 22:02:23,543 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err11ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 22:02:23,543 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:02:23,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1006734115, now seen corresponding path program 1 times [2023-08-25 22:02:23,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:02:23,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958352973] [2023-08-25 22:02:23,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:02:23,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:02:23,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:02:23,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:02:23,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:02:23,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958352973] [2023-08-25 22:02:23,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958352973] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:02:23,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:02:23,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 22:02:23,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284819279] [2023-08-25 22:02:23,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:02:23,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:02:23,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:02:23,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:02:23,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:02:23,584 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 303 [2023-08-25 22:02:23,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 68 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:23,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:02:23,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 303 [2023-08-25 22:02:23,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:02:23,858 INFO L124 PetriNetUnfolderBase]: 1721/2702 cut-off events. [2023-08-25 22:02:23,859 INFO L125 PetriNetUnfolderBase]: For 599/599 co-relation queries the response was YES. [2023-08-25 22:02:23,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6251 conditions, 2702 events. 1721/2702 cut-off events. For 599/599 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 11337 event pairs, 1057 based on Foata normal form. 0/2140 useless extension candidates. Maximal degree in co-relation 6245. Up to 2407 conditions per place. [2023-08-25 22:02:23,872 INFO L140 encePairwiseOnDemand]: 297/303 looper letters, 89 selfloop transitions, 10 changer transitions 0/99 dead transitions. [2023-08-25 22:02:23,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 99 transitions, 509 flow [2023-08-25 22:02:23,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:02:23,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:02:23,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 366 transitions. [2023-08-25 22:02:23,874 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40264026402640263 [2023-08-25 22:02:23,874 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 366 transitions. [2023-08-25 22:02:23,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 366 transitions. [2023-08-25 22:02:23,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:02:23,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 366 transitions. [2023-08-25 22:02:23,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:23,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:23,878 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:23,878 INFO L175 Difference]: Start difference. First operand has 58 places, 68 transitions, 220 flow. Second operand 3 states and 366 transitions. [2023-08-25 22:02:23,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 99 transitions, 509 flow [2023-08-25 22:02:23,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 99 transitions, 489 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 22:02:23,883 INFO L231 Difference]: Finished difference. Result has 60 places, 73 transitions, 282 flow [2023-08-25 22:02:23,883 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=60, PETRI_TRANSITIONS=73} [2023-08-25 22:02:23,884 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -24 predicate places. [2023-08-25 22:02:23,884 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 73 transitions, 282 flow [2023-08-25 22:02:23,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:23,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:02:23,885 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:02:23,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 22:02:23,885 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err13ASSERT_VIOLATIONASSERT === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 22:02:23,885 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:02:23,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1224928595, now seen corresponding path program 1 times [2023-08-25 22:02:23,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:02:23,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929885231] [2023-08-25 22:02:23,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:02:23,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:02:23,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:02:23,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:02:23,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:02:23,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929885231] [2023-08-25 22:02:23,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929885231] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:02:23,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:02:23,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 22:02:23,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114053459] [2023-08-25 22:02:23,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:02:23,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:02:23,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:02:23,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:02:23,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:02:23,927 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 303 [2023-08-25 22:02:23,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 73 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:23,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:02:23,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 303 [2023-08-25 22:02:23,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:02:24,168 INFO L124 PetriNetUnfolderBase]: 1584/2729 cut-off events. [2023-08-25 22:02:24,168 INFO L125 PetriNetUnfolderBase]: For 2434/2554 co-relation queries the response was YES. [2023-08-25 22:02:24,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6872 conditions, 2729 events. 1584/2729 cut-off events. For 2434/2554 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 13651 event pairs, 604 based on Foata normal form. 28/2235 useless extension candidates. Maximal degree in co-relation 6865. Up to 1507 conditions per place. [2023-08-25 22:02:24,183 INFO L140 encePairwiseOnDemand]: 298/303 looper letters, 96 selfloop transitions, 3 changer transitions 3/114 dead transitions. [2023-08-25 22:02:24,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 114 transitions, 675 flow [2023-08-25 22:02:24,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:02:24,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:02:24,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 380 transitions. [2023-08-25 22:02:24,186 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41804180418041803 [2023-08-25 22:02:24,186 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 380 transitions. [2023-08-25 22:02:24,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 380 transitions. [2023-08-25 22:02:24,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:02:24,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 380 transitions. [2023-08-25 22:02:24,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:24,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:24,189 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:24,189 INFO L175 Difference]: Start difference. First operand has 60 places, 73 transitions, 282 flow. Second operand 3 states and 380 transitions. [2023-08-25 22:02:24,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 114 transitions, 675 flow [2023-08-25 22:02:24,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 114 transitions, 637 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 22:02:24,196 INFO L231 Difference]: Finished difference. Result has 62 places, 74 transitions, 282 flow [2023-08-25 22:02:24,196 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=62, PETRI_TRANSITIONS=74} [2023-08-25 22:02:24,197 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -22 predicate places. [2023-08-25 22:02:24,197 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 74 transitions, 282 flow [2023-08-25 22:02:24,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:24,197 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:02:24,197 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:02:24,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 22:02:24,198 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err13ASSERT_VIOLATIONASSERT === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 22:02:24,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:02:24,198 INFO L85 PathProgramCache]: Analyzing trace with hash 141402478, now seen corresponding path program 1 times [2023-08-25 22:02:24,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:02:24,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033263131] [2023-08-25 22:02:24,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:02:24,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:02:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:02:24,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:02:24,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:02:24,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033263131] [2023-08-25 22:02:24,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033263131] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:02:24,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:02:24,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 22:02:24,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371327874] [2023-08-25 22:02:24,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:02:24,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:02:24,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:02:24,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:02:24,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:02:24,282 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 303 [2023-08-25 22:02:24,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 74 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:24,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:02:24,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 303 [2023-08-25 22:02:24,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:02:24,545 INFO L124 PetriNetUnfolderBase]: 1456/2519 cut-off events. [2023-08-25 22:02:24,545 INFO L125 PetriNetUnfolderBase]: For 1677/1769 co-relation queries the response was YES. [2023-08-25 22:02:24,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6321 conditions, 2519 events. 1456/2519 cut-off events. For 1677/1769 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 12373 event pairs, 602 based on Foata normal form. 84/2227 useless extension candidates. Maximal degree in co-relation 6313. Up to 1506 conditions per place. [2023-08-25 22:02:24,557 INFO L140 encePairwiseOnDemand]: 299/303 looper letters, 90 selfloop transitions, 2 changer transitions 8/112 dead transitions. [2023-08-25 22:02:24,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 112 transitions, 647 flow [2023-08-25 22:02:24,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:02:24,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:02:24,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2023-08-25 22:02:24,559 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4158415841584158 [2023-08-25 22:02:24,559 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 378 transitions. [2023-08-25 22:02:24,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 378 transitions. [2023-08-25 22:02:24,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:02:24,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 378 transitions. [2023-08-25 22:02:24,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.0) internal successors, (378), 3 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:24,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:24,563 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:24,563 INFO L175 Difference]: Start difference. First operand has 62 places, 74 transitions, 282 flow. Second operand 3 states and 378 transitions. [2023-08-25 22:02:24,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 112 transitions, 647 flow [2023-08-25 22:02:24,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 112 transitions, 641 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 22:02:24,568 INFO L231 Difference]: Finished difference. Result has 63 places, 74 transitions, 286 flow [2023-08-25 22:02:24,569 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=63, PETRI_TRANSITIONS=74} [2023-08-25 22:02:24,571 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -21 predicate places. [2023-08-25 22:02:24,573 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 74 transitions, 286 flow [2023-08-25 22:02:24,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:24,574 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:02:24,574 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 22:02:24,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 22:02:24,574 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 22:02:24,575 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:02:24,575 INFO L85 PathProgramCache]: Analyzing trace with hash -50830678, now seen corresponding path program 1 times [2023-08-25 22:02:24,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:02:24,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958026252] [2023-08-25 22:02:24,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:02:24,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:02:24,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:02:24,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:02:24,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:02:24,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958026252] [2023-08-25 22:02:24,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958026252] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:02:24,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:02:24,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 22:02:24,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159624275] [2023-08-25 22:02:24,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:02:24,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:02:24,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:02:24,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:02:24,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:02:24,650 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 303 [2023-08-25 22:02:24,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 74 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:24,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:02:24,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 303 [2023-08-25 22:02:24,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:02:25,029 INFO L124 PetriNetUnfolderBase]: 2471/4308 cut-off events. [2023-08-25 22:02:25,029 INFO L125 PetriNetUnfolderBase]: For 3655/3849 co-relation queries the response was YES. [2023-08-25 22:02:25,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11189 conditions, 4308 events. 2471/4308 cut-off events. For 3655/3849 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 24586 event pairs, 815 based on Foata normal form. 34/3742 useless extension candidates. Maximal degree in co-relation 11180. Up to 2095 conditions per place. [2023-08-25 22:02:25,049 INFO L140 encePairwiseOnDemand]: 296/303 looper letters, 112 selfloop transitions, 6 changer transitions 0/130 dead transitions. [2023-08-25 22:02:25,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 130 transitions, 745 flow [2023-08-25 22:02:25,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:02:25,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:02:25,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 411 transitions. [2023-08-25 22:02:25,051 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4521452145214521 [2023-08-25 22:02:25,051 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 411 transitions. [2023-08-25 22:02:25,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 411 transitions. [2023-08-25 22:02:25,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:02:25,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 411 transitions. [2023-08-25 22:02:25,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:25,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:25,055 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:25,055 INFO L175 Difference]: Start difference. First operand has 63 places, 74 transitions, 286 flow. Second operand 3 states and 411 transitions. [2023-08-25 22:02:25,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 130 transitions, 745 flow [2023-08-25 22:02:25,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 130 transitions, 741 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 22:02:25,060 INFO L231 Difference]: Finished difference. Result has 66 places, 79 transitions, 330 flow [2023-08-25 22:02:25,060 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=66, PETRI_TRANSITIONS=79} [2023-08-25 22:02:25,060 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -18 predicate places. [2023-08-25 22:02:25,060 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 79 transitions, 330 flow [2023-08-25 22:02:25,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:25,061 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:02:25,061 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] [2023-08-25 22:02:25,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 22:02:25,061 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 22:02:25,062 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:02:25,062 INFO L85 PathProgramCache]: Analyzing trace with hash -871779954, now seen corresponding path program 2 times [2023-08-25 22:02:25,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:02:25,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835535564] [2023-08-25 22:02:25,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:02:25,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:02:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:02:25,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:02:25,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:02:25,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835535564] [2023-08-25 22:02:25,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835535564] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:02:25,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:02:25,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 22:02:25,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101513688] [2023-08-25 22:02:25,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:02:25,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 22:02:25,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:02:25,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 22:02:25,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 22:02:25,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 303 [2023-08-25 22:02:25,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 79 transitions, 330 flow. Second operand has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:25,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:02:25,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 303 [2023-08-25 22:02:25,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:02:25,631 INFO L124 PetriNetUnfolderBase]: 3120/5359 cut-off events. [2023-08-25 22:02:25,631 INFO L125 PetriNetUnfolderBase]: For 4653/4875 co-relation queries the response was YES. [2023-08-25 22:02:25,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14268 conditions, 5359 events. 3120/5359 cut-off events. For 4653/4875 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 31335 event pairs, 555 based on Foata normal form. 120/4987 useless extension candidates. Maximal degree in co-relation 14258. Up to 2027 conditions per place. [2023-08-25 22:02:25,653 INFO L140 encePairwiseOnDemand]: 286/303 looper letters, 104 selfloop transitions, 20 changer transitions 25/161 dead transitions. [2023-08-25 22:02:25,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 161 transitions, 927 flow [2023-08-25 22:02:25,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 22:02:25,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 22:02:25,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 600 transitions. [2023-08-25 22:02:25,656 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39603960396039606 [2023-08-25 22:02:25,656 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 600 transitions. [2023-08-25 22:02:25,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 600 transitions. [2023-08-25 22:02:25,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:02:25,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 600 transitions. [2023-08-25 22:02:25,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:25,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 303.0) internal successors, (1818), 6 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:25,660 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 303.0) internal successors, (1818), 6 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:25,660 INFO L175 Difference]: Start difference. First operand has 66 places, 79 transitions, 330 flow. Second operand 5 states and 600 transitions. [2023-08-25 22:02:25,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 161 transitions, 927 flow [2023-08-25 22:02:25,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 161 transitions, 895 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 22:02:25,673 INFO L231 Difference]: Finished difference. Result has 72 places, 95 transitions, 474 flow [2023-08-25 22:02:25,673 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=474, PETRI_PLACES=72, PETRI_TRANSITIONS=95} [2023-08-25 22:02:25,676 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -12 predicate places. [2023-08-25 22:02:25,676 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 95 transitions, 474 flow [2023-08-25 22:02:25,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:25,676 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:02:25,676 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] [2023-08-25 22:02:25,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 22:02:25,677 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 22:02:25,677 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:02:25,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1611866714, now seen corresponding path program 3 times [2023-08-25 22:02:25,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:02:25,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867673116] [2023-08-25 22:02:25,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:02:25,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:02:25,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:02:25,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:02:25,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:02:25,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867673116] [2023-08-25 22:02:25,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867673116] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:02:25,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:02:25,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-25 22:02:25,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443271268] [2023-08-25 22:02:25,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:02:25,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 22:02:25,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:02:25,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 22:02:25,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 22:02:25,740 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 303 [2023-08-25 22:02:25,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 95 transitions, 474 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:25,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:02:25,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 303 [2023-08-25 22:02:25,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:02:26,183 INFO L124 PetriNetUnfolderBase]: 2887/5064 cut-off events. [2023-08-25 22:02:26,183 INFO L125 PetriNetUnfolderBase]: For 6203/6409 co-relation queries the response was YES. [2023-08-25 22:02:26,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15825 conditions, 5064 events. 2887/5064 cut-off events. For 6203/6409 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 30199 event pairs, 1277 based on Foata normal form. 34/4800 useless extension candidates. Maximal degree in co-relation 15812. Up to 4041 conditions per place. [2023-08-25 22:02:26,207 INFO L140 encePairwiseOnDemand]: 298/303 looper letters, 103 selfloop transitions, 5 changer transitions 4/124 dead transitions. [2023-08-25 22:02:26,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 124 transitions, 835 flow [2023-08-25 22:02:26,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 22:02:26,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 22:02:26,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2023-08-25 22:02:26,209 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43344334433443343 [2023-08-25 22:02:26,209 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2023-08-25 22:02:26,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2023-08-25 22:02:26,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:02:26,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2023-08-25 22:02:26,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:26,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:26,212 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:26,213 INFO L175 Difference]: Start difference. First operand has 72 places, 95 transitions, 474 flow. Second operand 3 states and 394 transitions. [2023-08-25 22:02:26,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 124 transitions, 835 flow [2023-08-25 22:02:26,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 124 transitions, 833 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-25 22:02:26,221 INFO L231 Difference]: Finished difference. Result has 76 places, 98 transitions, 512 flow [2023-08-25 22:02:26,221 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=512, PETRI_PLACES=76, PETRI_TRANSITIONS=98} [2023-08-25 22:02:26,222 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -8 predicate places. [2023-08-25 22:02:26,222 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 98 transitions, 512 flow [2023-08-25 22:02:26,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:26,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 22:02:26,223 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] [2023-08-25 22:02:26,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 22:02:26,223 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-08-25 22:02:26,223 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 22:02:26,224 INFO L85 PathProgramCache]: Analyzing trace with hash -2105893946, now seen corresponding path program 4 times [2023-08-25 22:02:26,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 22:02:26,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974299842] [2023-08-25 22:02:26,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 22:02:26,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 22:02:26,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 22:02:26,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 22:02:26,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 22:02:26,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974299842] [2023-08-25 22:02:26,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974299842] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 22:02:26,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 22:02:26,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-25 22:02:26,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875319363] [2023-08-25 22:02:26,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 22:02:26,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-25 22:02:26,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 22:02:26,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-25 22:02:26,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-25 22:02:26,265 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 303 [2023-08-25 22:02:26,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 98 transitions, 512 flow. Second operand has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:26,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 22:02:26,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 303 [2023-08-25 22:02:26,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 22:02:26,600 INFO L124 PetriNetUnfolderBase]: 1840/3073 cut-off events. [2023-08-25 22:02:26,600 INFO L125 PetriNetUnfolderBase]: For 3494/3510 co-relation queries the response was YES. [2023-08-25 22:02:26,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9587 conditions, 3073 events. 1840/3073 cut-off events. For 3494/3510 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 15249 event pairs, 531 based on Foata normal form. 40/2971 useless extension candidates. Maximal degree in co-relation 9572. Up to 1623 conditions per place. [2023-08-25 22:02:26,610 INFO L140 encePairwiseOnDemand]: 288/303 looper letters, 0 selfloop transitions, 0 changer transitions 155/155 dead transitions. [2023-08-25 22:02:26,610 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 155 transitions, 1076 flow [2023-08-25 22:02:26,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-25 22:02:26,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-25 22:02:26,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 590 transitions. [2023-08-25 22:02:26,613 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38943894389438943 [2023-08-25 22:02:26,613 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 590 transitions. [2023-08-25 22:02:26,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 590 transitions. [2023-08-25 22:02:26,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 22:02:26,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 590 transitions. [2023-08-25 22:02:26,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:26,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 303.0) internal successors, (1818), 6 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:26,617 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 303.0) internal successors, (1818), 6 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:26,617 INFO L175 Difference]: Start difference. First operand has 76 places, 98 transitions, 512 flow. Second operand 5 states and 590 transitions. [2023-08-25 22:02:26,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 155 transitions, 1076 flow [2023-08-25 22:02:26,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 155 transitions, 998 flow, removed 18 selfloop flow, removed 6 redundant places. [2023-08-25 22:02:26,628 INFO L231 Difference]: Finished difference. Result has 68 places, 0 transitions, 0 flow [2023-08-25 22:02:26,629 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=68, PETRI_TRANSITIONS=0} [2023-08-25 22:02:26,629 INFO L281 CegarLoopForPetriNet]: 84 programPoint places, -16 predicate places. [2023-08-25 22:02:26,629 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 0 transitions, 0 flow [2023-08-25 22:02:26,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 101.0) internal successors, (404), 4 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 22:02:26,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (71 of 72 remaining) [2023-08-25 22:02:26,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (70 of 72 remaining) [2023-08-25 22:02:26,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err2ASSERT_VIOLATIONDATA_RACE (69 of 72 remaining) [2023-08-25 22:02:26,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err3ASSERT_VIOLATIONDATA_RACE (68 of 72 remaining) [2023-08-25 22:02:26,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err4ASSERT_VIOLATIONDATA_RACE (67 of 72 remaining) [2023-08-25 22:02:26,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err5ASSERT_VIOLATIONDATA_RACE (66 of 72 remaining) [2023-08-25 22:02:26,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err8ASSERT_VIOLATIONDATA_RACE (65 of 72 remaining) [2023-08-25 22:02:26,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err6ASSERT_VIOLATIONDATA_RACE (64 of 72 remaining) [2023-08-25 22:02:26,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err9ASSERT_VIOLATIONDATA_RACE (63 of 72 remaining) [2023-08-25 22:02:26,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err7ASSERT_VIOLATIONDATA_RACE (62 of 72 remaining) [2023-08-25 22:02:26,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err10ASSERT_VIOLATIONDATA_RACE (61 of 72 remaining) [2023-08-25 22:02:26,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err11ASSERT_VIOLATIONDATA_RACE (60 of 72 remaining) [2023-08-25 22:02:26,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err12ASSERT_VIOLATIONDATA_RACE (59 of 72 remaining) [2023-08-25 22:02:26,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err14ASSERT_VIOLATIONDATA_RACE (58 of 72 remaining) [2023-08-25 22:02:26,633 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err13ASSERT_VIOLATIONASSERT (57 of 72 remaining) [2023-08-25 22:02:26,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err15ASSERT_VIOLATIONDATA_RACE (56 of 72 remaining) [2023-08-25 22:02:26,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err16ASSERT_VIOLATIONDATA_RACE (55 of 72 remaining) [2023-08-25 22:02:26,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (54 of 72 remaining) [2023-08-25 22:02:26,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (53 of 72 remaining) [2023-08-25 22:02:26,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (52 of 72 remaining) [2023-08-25 22:02:26,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (51 of 72 remaining) [2023-08-25 22:02:26,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (50 of 72 remaining) [2023-08-25 22:02:26,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONDATA_RACE (49 of 72 remaining) [2023-08-25 22:02:26,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONDATA_RACE (48 of 72 remaining) [2023-08-25 22:02:26,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 72 remaining) [2023-08-25 22:02:26,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err9ASSERT_VIOLATIONDATA_RACE (46 of 72 remaining) [2023-08-25 22:02:26,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONDATA_RACE (45 of 72 remaining) [2023-08-25 22:02:26,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err10ASSERT_VIOLATIONDATA_RACE (44 of 72 remaining) [2023-08-25 22:02:26,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err11ASSERT_VIOLATIONDATA_RACE (43 of 72 remaining) [2023-08-25 22:02:26,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err12ASSERT_VIOLATIONDATA_RACE (42 of 72 remaining) [2023-08-25 22:02:26,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 72 remaining) [2023-08-25 22:02:26,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err13ASSERT_VIOLATIONASSERT (40 of 72 remaining) [2023-08-25 22:02:26,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err15ASSERT_VIOLATIONDATA_RACE (39 of 72 remaining) [2023-08-25 22:02:26,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err16ASSERT_VIOLATIONDATA_RACE (38 of 72 remaining) [2023-08-25 22:02:26,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 72 remaining) [2023-08-25 22:02:26,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 72 remaining) [2023-08-25 22:02:26,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 72 remaining) [2023-08-25 22:02:26,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 72 remaining) [2023-08-25 22:02:26,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (33 of 72 remaining) [2023-08-25 22:02:26,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (32 of 72 remaining) [2023-08-25 22:02:26,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err2ASSERT_VIOLATIONDATA_RACE (31 of 72 remaining) [2023-08-25 22:02:26,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err3ASSERT_VIOLATIONDATA_RACE (30 of 72 remaining) [2023-08-25 22:02:26,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err4ASSERT_VIOLATIONDATA_RACE (29 of 72 remaining) [2023-08-25 22:02:26,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err5ASSERT_VIOLATIONDATA_RACE (28 of 72 remaining) [2023-08-25 22:02:26,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err8ASSERT_VIOLATIONDATA_RACE (27 of 72 remaining) [2023-08-25 22:02:26,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err6ASSERT_VIOLATIONDATA_RACE (26 of 72 remaining) [2023-08-25 22:02:26,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err9ASSERT_VIOLATIONDATA_RACE (25 of 72 remaining) [2023-08-25 22:02:26,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err7ASSERT_VIOLATIONDATA_RACE (24 of 72 remaining) [2023-08-25 22:02:26,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err10ASSERT_VIOLATIONDATA_RACE (23 of 72 remaining) [2023-08-25 22:02:26,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err11ASSERT_VIOLATIONDATA_RACE (22 of 72 remaining) [2023-08-25 22:02:26,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err12ASSERT_VIOLATIONDATA_RACE (21 of 72 remaining) [2023-08-25 22:02:26,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err14ASSERT_VIOLATIONDATA_RACE (20 of 72 remaining) [2023-08-25 22:02:26,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err13ASSERT_VIOLATIONASSERT (19 of 72 remaining) [2023-08-25 22:02:26,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err15ASSERT_VIOLATIONDATA_RACE (18 of 72 remaining) [2023-08-25 22:02:26,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err16ASSERT_VIOLATIONDATA_RACE (17 of 72 remaining) [2023-08-25 22:02:26,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 72 remaining) [2023-08-25 22:02:26,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 72 remaining) [2023-08-25 22:02:26,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (14 of 72 remaining) [2023-08-25 22:02:26,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (13 of 72 remaining) [2023-08-25 22:02:26,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (12 of 72 remaining) [2023-08-25 22:02:26,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONDATA_RACE (11 of 72 remaining) [2023-08-25 22:02:26,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONDATA_RACE (10 of 72 remaining) [2023-08-25 22:02:26,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONDATA_RACE (9 of 72 remaining) [2023-08-25 22:02:26,638 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err9ASSERT_VIOLATIONDATA_RACE (8 of 72 remaining) [2023-08-25 22:02:26,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 72 remaining) [2023-08-25 22:02:26,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 72 remaining) [2023-08-25 22:02:26,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err11ASSERT_VIOLATIONDATA_RACE (5 of 72 remaining) [2023-08-25 22:02:26,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err12ASSERT_VIOLATIONDATA_RACE (4 of 72 remaining) [2023-08-25 22:02:26,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 72 remaining) [2023-08-25 22:02:26,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err13ASSERT_VIOLATIONASSERT (2 of 72 remaining) [2023-08-25 22:02:26,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err15ASSERT_VIOLATIONDATA_RACE (1 of 72 remaining) [2023-08-25 22:02:26,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err16ASSERT_VIOLATIONDATA_RACE (0 of 72 remaining) [2023-08-25 22:02:26,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 22:02:26,640 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1] [2023-08-25 22:02:26,644 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 22:02:26,644 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 22:02:26,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 10:02:26 BasicIcfg [2023-08-25 22:02:26,647 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 22:02:26,647 INFO L158 Benchmark]: Toolchain (without parser) took 8148.00ms. Allocated memory was 341.8MB in the beginning and 541.1MB in the end (delta: 199.2MB). Free memory was 298.2MB in the beginning and 402.2MB in the end (delta: -104.0MB). Peak memory consumption was 307.0MB. Max. memory is 16.0GB. [2023-08-25 22:02:26,648 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 341.8MB. Free memory was 320.0MB in the beginning and 320.0MB in the end (delta: 86.2kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 22:02:26,648 INFO L158 Benchmark]: CACSL2BoogieTranslator took 539.06ms. Allocated memory is still 341.8MB. Free memory was 298.2MB in the beginning and 277.0MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 22:02:26,648 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.14ms. Allocated memory is still 341.8MB. Free memory was 277.0MB in the beginning and 275.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 22:02:26,648 INFO L158 Benchmark]: Boogie Preprocessor took 51.81ms. Allocated memory is still 341.8MB. Free memory was 275.1MB in the beginning and 273.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 22:02:26,649 INFO L158 Benchmark]: RCFGBuilder took 557.20ms. Allocated memory is still 341.8MB. Free memory was 273.0MB in the beginning and 242.6MB in the end (delta: 30.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-08-25 22:02:26,649 INFO L158 Benchmark]: TraceAbstraction took 6919.64ms. Allocated memory was 341.8MB in the beginning and 541.1MB in the end (delta: 199.2MB). Free memory was 242.6MB in the beginning and 402.2MB in the end (delta: -159.6MB). Peak memory consumption was 252.5MB. Max. memory is 16.0GB. [2023-08-25 22:02:26,650 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 341.8MB. Free memory was 320.0MB in the beginning and 320.0MB in the end (delta: 86.2kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 539.06ms. Allocated memory is still 341.8MB. Free memory was 298.2MB in the beginning and 277.0MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 74.14ms. Allocated memory is still 341.8MB. Free memory was 277.0MB in the beginning and 275.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 51.81ms. Allocated memory is still 341.8MB. Free memory was 275.1MB in the beginning and 273.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 557.20ms. Allocated memory is still 341.8MB. Free memory was 273.0MB in the beginning and 242.6MB in the end (delta: 30.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * TraceAbstraction took 6919.64ms. Allocated memory was 341.8MB in the beginning and 541.1MB in the end (delta: 199.2MB). Free memory was 242.6MB in the beginning and 402.2MB in the end (delta: -159.6MB). Peak memory consumption was 252.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 265]: Unsoundness Warning unspecified type, defaulting to int C: short [265] - GenericResultAtLocation [Line: 265]: Unsoundness Warning unspecified type, defaulting to int C: short [265] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 153 PlacesBefore, 84 PlacesAfterwards, 168 TransitionsBefore, 89 TransitionsAfterwards, 12096 CoEnabledTransitionPairs, 5 FixpointIterations, 16 TrivialSequentialCompositions, 91 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 10 ChoiceCompositions, 124 TotalNumberOfCompositions, 27708 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10837, independent: 10458, independent conditional: 0, independent unconditional: 10458, dependent: 379, dependent conditional: 0, dependent unconditional: 379, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5466, independent: 5381, independent conditional: 0, independent unconditional: 5381, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10837, independent: 5077, independent conditional: 0, independent unconditional: 5077, dependent: 294, dependent conditional: 0, dependent unconditional: 294, unknown: 5466, unknown conditional: 0, unknown unconditional: 5466] , Statistics on independence cache: Total cache size (in pairs): 574, Positive cache size: 532, Positive conditional cache size: 0, Positive unconditional cache size: 532, Negative cache size: 42, Negative conditional cache size: 0, Negative unconditional cache size: 42, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 761]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 764]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 768]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 772]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 775]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 779]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 791]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 782]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 794]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 786]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 798]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 801]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 802]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 804]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 12]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 808]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 812]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 704]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 715]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 722]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 734]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 737]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 729]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 741]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 744]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 745]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 747]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 12]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 751]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 755]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 820]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 821]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 266 locations, 72 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: 6.8s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 348 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 348 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1360 IncrementalHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 18 mSDtfsCounter, 1360 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=512occurred in iteration=9, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 144 ConstructedInterpolants, 0 QuantifiedInterpolants, 200 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 36 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 22:02:26,665 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...