/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 07:49:13,634 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 07:49:13,699 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 07:49:13,703 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 07:49:13,703 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 07:49:13,727 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 07:49:13,728 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 07:49:13,728 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 07:49:13,728 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 07:49:13,731 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 07:49:13,731 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 07:49:13,731 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 07:49:13,732 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 07:49:13,733 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 07:49:13,733 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 07:49:13,733 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 07:49:13,733 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 07:49:13,733 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 07:49:13,733 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 07:49:13,733 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 07:49:13,733 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 07:49:13,734 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 07:49:13,734 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 07:49:13,735 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 07:49:13,735 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 07:49:13,735 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 07:49:13,735 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 07:49:13,735 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 07:49:13,735 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 07:49:13,735 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 07:49:13,736 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 07:49:13,736 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 07:49:13,736 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 07:49:13,737 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 07:49:13,737 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 07:49:13,737 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 07:49:13,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 07:49:13,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 07:49:13,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 07:49:13,991 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 07:49:13,992 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 07:49:13,993 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2023-08-25 07:49:15,045 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 07:49:15,313 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 07:49:15,314 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2023-08-25 07:49:15,331 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3251baaa0/025d9f10f2c749f99346286ebf847d5b/FLAG53e0011f6 [2023-08-25 07:49:15,343 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3251baaa0/025d9f10f2c749f99346286ebf847d5b [2023-08-25 07:49:15,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 07:49:15,347 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 07:49:15,349 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 07:49:15,349 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 07:49:15,351 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 07:49:15,352 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:49:15" (1/1) ... [2023-08-25 07:49:15,353 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18fcd6aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:15, skipping insertion in model container [2023-08-25 07:49:15,353 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:49:15" (1/1) ... [2023-08-25 07:49:15,395 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 07:49:15,559 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-25 07:49:15,718 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 07:49:15,728 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 07:49:15,747 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-25 07:49:15,749 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [283] [2023-08-25 07:49:15,751 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [283] [2023-08-25 07:49:15,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 07:49:15,822 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 07:49:15,822 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 07:49:15,822 WARN L669 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 07:49:15,827 INFO L206 MainTranslator]: Completed translation [2023-08-25 07:49:15,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:15 WrapperNode [2023-08-25 07:49:15,828 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 07:49:15,828 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 07:49:15,829 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 07:49:15,829 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 07:49:15,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:15" (1/1) ... [2023-08-25 07:49:15,848 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:15" (1/1) ... [2023-08-25 07:49:15,864 INFO L138 Inliner]: procedures = 325, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2023-08-25 07:49:15,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 07:49:15,865 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 07:49:15,865 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 07:49:15,865 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 07:49:15,870 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:15" (1/1) ... [2023-08-25 07:49:15,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:15" (1/1) ... [2023-08-25 07:49:15,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:15" (1/1) ... [2023-08-25 07:49:15,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:15" (1/1) ... [2023-08-25 07:49:15,883 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:15" (1/1) ... [2023-08-25 07:49:15,884 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:15" (1/1) ... [2023-08-25 07:49:15,886 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:15" (1/1) ... [2023-08-25 07:49:15,887 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:15" (1/1) ... [2023-08-25 07:49:15,889 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 07:49:15,890 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 07:49:15,890 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 07:49:15,890 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 07:49:15,890 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:15" (1/1) ... [2023-08-25 07:49:15,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 07:49:15,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 07:49:15,927 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 07:49:15,940 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 07:49:15,955 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 07:49:15,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 07:49:15,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 07:49:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 07:49:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 07:49:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2023-08-25 07:49:15,956 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2023-08-25 07:49:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-25 07:49:15,956 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-25 07:49:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-25 07:49:15,956 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-25 07:49:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-25 07:49:15,956 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-25 07:49:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 07:49:15,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-25 07:49:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 07:49:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 07:49:15,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 07:49:15,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 07:49:15,958 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 07:49:16,065 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 07:49:16,066 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 07:49:16,387 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 07:49:16,416 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 07:49:16,416 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-25 07:49:16,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:49:16 BoogieIcfgContainer [2023-08-25 07:49:16,417 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 07:49:16,419 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 07:49:16,419 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 07:49:16,424 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 07:49:16,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:49:15" (1/3) ... [2023-08-25 07:49:16,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7279f7e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:49:16, skipping insertion in model container [2023-08-25 07:49:16,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:49:15" (2/3) ... [2023-08-25 07:49:16,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7279f7e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:49:16, skipping insertion in model container [2023-08-25 07:49:16,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:49:16" (3/3) ... [2023-08-25 07:49:16,427 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2023-08-25 07:49:16,437 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 07:49:16,437 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-08-25 07:49:16,437 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 07:49:16,560 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2023-08-25 07:49:16,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 292 places, 284 transitions, 675 flow [2023-08-25 07:49:16,658 INFO L124 PetriNetUnfolderBase]: 8/197 cut-off events. [2023-08-25 07:49:16,659 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-25 07:49:16,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 197 events. 8/197 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 157 event pairs, 0 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 167. Up to 3 conditions per place. [2023-08-25 07:49:16,662 INFO L82 GeneralOperation]: Start removeDead. Operand has 292 places, 284 transitions, 675 flow [2023-08-25 07:49:16,668 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 197 places, 184 transitions, 419 flow [2023-08-25 07:49:16,670 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 07:49:16,680 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 197 places, 184 transitions, 419 flow [2023-08-25 07:49:16,682 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 197 places, 184 transitions, 419 flow [2023-08-25 07:49:16,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 197 places, 184 transitions, 419 flow [2023-08-25 07:49:16,724 INFO L124 PetriNetUnfolderBase]: 6/184 cut-off events. [2023-08-25 07:49:16,725 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-25 07:49:16,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 184 events. 6/184 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 133 event pairs, 0 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 162. Up to 3 conditions per place. [2023-08-25 07:49:16,729 INFO L119 LiptonReduction]: Number of co-enabled transitions 4608 [2023-08-25 07:49:19,851 INFO L134 LiptonReduction]: Checked pairs total: 22792 [2023-08-25 07:49:19,851 INFO L136 LiptonReduction]: Total number of compositions: 119 [2023-08-25 07:49:19,868 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 07:49:19,878 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;@753f9c88, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 07:49:19,878 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2023-08-25 07:49:19,889 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 07:49:19,889 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-08-25 07:49:19,889 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 07:49:19,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:49:19,890 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 07:49:19,890 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 07:49:19,894 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:49:19,895 INFO L85 PathProgramCache]: Analyzing trace with hash 678154008, now seen corresponding path program 1 times [2023-08-25 07:49:19,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:49:19,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301098866] [2023-08-25 07:49:19,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:49:19,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:49:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:49:20,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:49:20,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:49:20,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301098866] [2023-08-25 07:49:20,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301098866] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:49:20,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:49:20,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 07:49:20,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824799622] [2023-08-25 07:49:20,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:49:20,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 07:49:20,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:49:20,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 07:49:20,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 07:49:20,101 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 405 [2023-08-25 07:49:20,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 89 transitions, 229 flow. Second operand has 2 states, 2 states have (on average 242.5) internal successors, (485), 2 states have internal predecessors, (485), 0 states have call successors, (0), 0 states 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 07:49:20,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:49:20,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 405 [2023-08-25 07:49:20,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:49:20,253 INFO L124 PetriNetUnfolderBase]: 317/716 cut-off events. [2023-08-25 07:49:20,253 INFO L125 PetriNetUnfolderBase]: For 101/105 co-relation queries the response was YES. [2023-08-25 07:49:20,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1343 conditions, 716 events. 317/716 cut-off events. For 101/105 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2665 event pairs, 285 based on Foata normal form. 0/637 useless extension candidates. Maximal degree in co-relation 1324. Up to 489 conditions per place. [2023-08-25 07:49:20,259 INFO L140 encePairwiseOnDemand]: 392/405 looper letters, 33 selfloop transitions, 0 changer transitions 0/76 dead transitions. [2023-08-25 07:49:20,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 76 transitions, 269 flow [2023-08-25 07:49:20,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 07:49:20,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 07:49:20,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 526 transitions. [2023-08-25 07:49:20,270 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6493827160493827 [2023-08-25 07:49:20,270 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 526 transitions. [2023-08-25 07:49:20,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 526 transitions. [2023-08-25 07:49:20,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:49:20,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 526 transitions. [2023-08-25 07:49:20,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 263.0) internal successors, (526), 2 states have internal predecessors, (526), 0 states have call successors, (0), 0 states 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 07:49:20,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 405.0) internal successors, (1215), 3 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states 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 07:49:20,281 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 405.0) internal successors, (1215), 3 states have internal predecessors, (1215), 0 states have call successors, (0), 0 states 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 07:49:20,282 INFO L175 Difference]: Start difference. First operand has 103 places, 89 transitions, 229 flow. Second operand 2 states and 526 transitions. [2023-08-25 07:49:20,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 76 transitions, 269 flow [2023-08-25 07:49:20,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 76 transitions, 235 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-08-25 07:49:20,288 INFO L231 Difference]: Finished difference. Result has 79 places, 76 transitions, 169 flow [2023-08-25 07:49:20,289 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=169, PETRI_PLACES=79, PETRI_TRANSITIONS=76} [2023-08-25 07:49:20,292 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -24 predicate places. [2023-08-25 07:49:20,292 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 76 transitions, 169 flow [2023-08-25 07:49:20,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 242.5) internal successors, (485), 2 states have internal predecessors, (485), 0 states have call successors, (0), 0 states 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 07:49:20,292 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:49:20,292 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:49:20,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 07:49:20,293 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 07:49:20,293 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:49:20,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1610103266, now seen corresponding path program 1 times [2023-08-25 07:49:20,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:49:20,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190667550] [2023-08-25 07:49:20,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:49:20,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:49:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:49:20,574 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 07:49:20,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:49:20,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190667550] [2023-08-25 07:49:20,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190667550] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:49:20,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:49:20,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 07:49:20,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629718179] [2023-08-25 07:49:20,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:49:20,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 07:49:20,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:49:20,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 07:49:20,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 07:49:20,579 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 405 [2023-08-25 07:49:20,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 76 transitions, 169 flow. Second operand has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states 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 07:49:20,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:49:20,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 405 [2023-08-25 07:49:20,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:49:22,348 INFO L124 PetriNetUnfolderBase]: 7950/11559 cut-off events. [2023-08-25 07:49:22,348 INFO L125 PetriNetUnfolderBase]: For 80/80 co-relation queries the response was YES. [2023-08-25 07:49:22,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23066 conditions, 11559 events. 7950/11559 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 55828 event pairs, 3460 based on Foata normal form. 0/10717 useless extension candidates. Maximal degree in co-relation 23063. Up to 8312 conditions per place. [2023-08-25 07:49:22,408 INFO L140 encePairwiseOnDemand]: 395/405 looper letters, 281 selfloop transitions, 21 changer transitions 0/310 dead transitions. [2023-08-25 07:49:22,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 310 transitions, 1302 flow [2023-08-25 07:49:22,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 07:49:22,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 07:49:22,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1311 transitions. [2023-08-25 07:49:22,412 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5395061728395062 [2023-08-25 07:49:22,412 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1311 transitions. [2023-08-25 07:49:22,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1311 transitions. [2023-08-25 07:49:22,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:49:22,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1311 transitions. [2023-08-25 07:49:22,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 218.5) internal successors, (1311), 6 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states 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 07:49:22,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 405.0) internal successors, (2835), 7 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states 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 07:49:22,421 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 405.0) internal successors, (2835), 7 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states 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 07:49:22,423 INFO L175 Difference]: Start difference. First operand has 79 places, 76 transitions, 169 flow. Second operand 6 states and 1311 transitions. [2023-08-25 07:49:22,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 310 transitions, 1302 flow [2023-08-25 07:49:22,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 310 transitions, 1302 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 07:49:22,430 INFO L231 Difference]: Finished difference. Result has 89 places, 96 transitions, 311 flow [2023-08-25 07:49:22,434 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=311, PETRI_PLACES=89, PETRI_TRANSITIONS=96} [2023-08-25 07:49:22,434 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -14 predicate places. [2023-08-25 07:49:22,434 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 96 transitions, 311 flow [2023-08-25 07:49:22,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.33333333333334) internal successors, (1016), 6 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states 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 07:49:22,435 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:49:22,435 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:49:22,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 07:49:22,436 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread0Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 07:49:22,436 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:49:22,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1628717193, now seen corresponding path program 1 times [2023-08-25 07:49:22,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:49:22,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884895254] [2023-08-25 07:49:22,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:49:22,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:49:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:49:22,706 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 07:49:22,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:49:22,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884895254] [2023-08-25 07:49:22,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884895254] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:49:22,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:49:22,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 07:49:22,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568438342] [2023-08-25 07:49:22,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:49:22,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 07:49:22,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:49:22,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 07:49:22,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 07:49:22,709 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 405 [2023-08-25 07:49:22,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 96 transitions, 311 flow. Second operand has 6 states, 6 states have (on average 170.5) internal successors, (1023), 6 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states 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 07:49:22,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:49:22,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 405 [2023-08-25 07:49:22,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:49:23,801 INFO L124 PetriNetUnfolderBase]: 7931/11676 cut-off events. [2023-08-25 07:49:23,802 INFO L125 PetriNetUnfolderBase]: For 7473/7473 co-relation queries the response was YES. [2023-08-25 07:49:23,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34153 conditions, 11676 events. 7931/11676 cut-off events. For 7473/7473 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 57189 event pairs, 2135 based on Foata normal form. 0/11090 useless extension candidates. Maximal degree in co-relation 34145. Up to 10913 conditions per place. [2023-08-25 07:49:23,874 INFO L140 encePairwiseOnDemand]: 396/405 looper letters, 124 selfloop transitions, 24 changer transitions 0/156 dead transitions. [2023-08-25 07:49:23,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 156 transitions, 874 flow [2023-08-25 07:49:23,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 07:49:23,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 07:49:23,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1127 transitions. [2023-08-25 07:49:23,877 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4637860082304527 [2023-08-25 07:49:23,877 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1127 transitions. [2023-08-25 07:49:23,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1127 transitions. [2023-08-25 07:49:23,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:49:23,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1127 transitions. [2023-08-25 07:49:23,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 187.83333333333334) internal successors, (1127), 6 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states 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 07:49:23,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 405.0) internal successors, (2835), 7 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states 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 07:49:23,883 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 405.0) internal successors, (2835), 7 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states 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 07:49:23,883 INFO L175 Difference]: Start difference. First operand has 89 places, 96 transitions, 311 flow. Second operand 6 states and 1127 transitions. [2023-08-25 07:49:23,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 156 transitions, 874 flow [2023-08-25 07:49:23,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 156 transitions, 874 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 07:49:23,996 INFO L231 Difference]: Finished difference. Result has 94 places, 115 transitions, 530 flow [2023-08-25 07:49:23,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=530, PETRI_PLACES=94, PETRI_TRANSITIONS=115} [2023-08-25 07:49:23,997 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -9 predicate places. [2023-08-25 07:49:23,997 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 115 transitions, 530 flow [2023-08-25 07:49:23,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 170.5) internal successors, (1023), 6 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states 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 07:49:23,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:49:23,998 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 07:49:23,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 07:49:24,001 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 07:49:24,001 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:49:24,001 INFO L85 PathProgramCache]: Analyzing trace with hash -499842014, now seen corresponding path program 1 times [2023-08-25 07:49:24,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:49:24,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392336228] [2023-08-25 07:49:24,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:49:24,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:49:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:49:24,751 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 07:49:24,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:49:24,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392336228] [2023-08-25 07:49:24,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392336228] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:49:24,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:49:24,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 07:49:24,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776886708] [2023-08-25 07:49:24,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:49:24,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 07:49:24,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:49:24,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 07:49:24,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-25 07:49:24,755 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 405 [2023-08-25 07:49:24,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 115 transitions, 530 flow. Second operand has 11 states, 11 states have (on average 142.8181818181818) internal successors, (1571), 11 states have internal predecessors, (1571), 0 states have call successors, (0), 0 states 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 07:49:24,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:49:24,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 405 [2023-08-25 07:49:24,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:49:27,142 INFO L124 PetriNetUnfolderBase]: 12989/18978 cut-off events. [2023-08-25 07:49:27,142 INFO L125 PetriNetUnfolderBase]: For 25386/25386 co-relation queries the response was YES. [2023-08-25 07:49:27,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64577 conditions, 18978 events. 12989/18978 cut-off events. For 25386/25386 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 99182 event pairs, 4330 based on Foata normal form. 242/18262 useless extension candidates. Maximal degree in co-relation 64567. Up to 8688 conditions per place. [2023-08-25 07:49:27,234 INFO L140 encePairwiseOnDemand]: 391/405 looper letters, 439 selfloop transitions, 66 changer transitions 0/513 dead transitions. [2023-08-25 07:49:27,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 513 transitions, 2953 flow [2023-08-25 07:49:27,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-25 07:49:27,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-25 07:49:27,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2255 transitions. [2023-08-25 07:49:27,239 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42830009496676164 [2023-08-25 07:49:27,239 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2255 transitions. [2023-08-25 07:49:27,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2255 transitions. [2023-08-25 07:49:27,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:49:27,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2255 transitions. [2023-08-25 07:49:27,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 173.46153846153845) internal successors, (2255), 13 states have internal predecessors, (2255), 0 states have call successors, (0), 0 states 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 07:49:27,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 405.0) internal successors, (5670), 14 states have internal predecessors, (5670), 0 states have call successors, (0), 0 states 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 07:49:27,250 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 405.0) internal successors, (5670), 14 states have internal predecessors, (5670), 0 states have call successors, (0), 0 states 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 07:49:27,250 INFO L175 Difference]: Start difference. First operand has 94 places, 115 transitions, 530 flow. Second operand 13 states and 2255 transitions. [2023-08-25 07:49:27,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 513 transitions, 2953 flow [2023-08-25 07:49:27,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 513 transitions, 2844 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-25 07:49:27,301 INFO L231 Difference]: Finished difference. Result has 110 places, 167 transitions, 1143 flow [2023-08-25 07:49:27,301 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1143, PETRI_PLACES=110, PETRI_TRANSITIONS=167} [2023-08-25 07:49:27,302 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 7 predicate places. [2023-08-25 07:49:27,303 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 167 transitions, 1143 flow [2023-08-25 07:49:27,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 142.8181818181818) internal successors, (1571), 11 states have internal predecessors, (1571), 0 states have call successors, (0), 0 states 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 07:49:27,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:49:27,303 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 07:49:27,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 07:49:27,304 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 07:49:27,304 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:49:27,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1946198140, now seen corresponding path program 2 times [2023-08-25 07:49:27,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:49:27,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799509819] [2023-08-25 07:49:27,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:49:27,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:49:27,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:49:27,741 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 07:49:27,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:49:27,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799509819] [2023-08-25 07:49:27,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799509819] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:49:27,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:49:27,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-25 07:49:27,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626998563] [2023-08-25 07:49:27,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:49:27,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-25 07:49:27,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:49:27,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-25 07:49:27,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-08-25 07:49:27,744 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 405 [2023-08-25 07:49:27,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 167 transitions, 1143 flow. Second operand has 11 states, 11 states have (on average 142.8181818181818) internal successors, (1571), 11 states have internal predecessors, (1571), 0 states have call successors, (0), 0 states 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 07:49:27,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:49:27,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 405 [2023-08-25 07:49:27,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:49:31,279 INFO L124 PetriNetUnfolderBase]: 17759/26632 cut-off events. [2023-08-25 07:49:31,279 INFO L125 PetriNetUnfolderBase]: For 88353/88357 co-relation queries the response was YES. [2023-08-25 07:49:31,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105444 conditions, 26632 events. 17759/26632 cut-off events. For 88353/88357 co-relation queries the response was YES. Maximal size of possible extension queue 512. Compared 153171 event pairs, 7486 based on Foata normal form. 728/25948 useless extension candidates. Maximal degree in co-relation 105426. Up to 14299 conditions per place. [2023-08-25 07:49:31,524 INFO L140 encePairwiseOnDemand]: 391/405 looper letters, 438 selfloop transitions, 99 changer transitions 0/545 dead transitions. [2023-08-25 07:49:31,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 545 transitions, 3557 flow [2023-08-25 07:49:31,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-25 07:49:31,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-25 07:49:31,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2119 transitions. [2023-08-25 07:49:31,529 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4360082304526749 [2023-08-25 07:49:31,529 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2119 transitions. [2023-08-25 07:49:31,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2119 transitions. [2023-08-25 07:49:31,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:49:31,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2119 transitions. [2023-08-25 07:49:31,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 176.58333333333334) internal successors, (2119), 12 states have internal predecessors, (2119), 0 states have call successors, (0), 0 states 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 07:49:31,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 405.0) internal successors, (5265), 13 states have internal predecessors, (5265), 0 states have call successors, (0), 0 states 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 07:49:31,539 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 405.0) internal successors, (5265), 13 states have internal predecessors, (5265), 0 states have call successors, (0), 0 states 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 07:49:31,539 INFO L175 Difference]: Start difference. First operand has 110 places, 167 transitions, 1143 flow. Second operand 12 states and 2119 transitions. [2023-08-25 07:49:31,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 545 transitions, 3557 flow [2023-08-25 07:49:31,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 545 transitions, 3555 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-25 07:49:31,883 INFO L231 Difference]: Finished difference. Result has 131 places, 206 transitions, 1925 flow [2023-08-25 07:49:31,883 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=1141, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1925, PETRI_PLACES=131, PETRI_TRANSITIONS=206} [2023-08-25 07:49:31,884 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 28 predicate places. [2023-08-25 07:49:31,884 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 206 transitions, 1925 flow [2023-08-25 07:49:31,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 142.8181818181818) internal successors, (1571), 11 states have internal predecessors, (1571), 0 states have call successors, (0), 0 states 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 07:49:31,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:49:31,885 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 07:49:31,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 07:49:31,885 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 07:49:31,885 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:49:31,885 INFO L85 PathProgramCache]: Analyzing trace with hash -238052988, now seen corresponding path program 3 times [2023-08-25 07:49:31,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:49:31,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099294531] [2023-08-25 07:49:31,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:49:31,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:49:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:49:32,179 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 07:49:32,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:49:32,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099294531] [2023-08-25 07:49:32,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099294531] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:49:32,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:49:32,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-25 07:49:32,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282918210] [2023-08-25 07:49:32,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:49:32,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 07:49:32,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:49:32,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 07:49:32,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-25 07:49:32,182 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 405 [2023-08-25 07:49:32,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 206 transitions, 1925 flow. Second operand has 9 states, 9 states have (on average 159.22222222222223) internal successors, (1433), 9 states have internal predecessors, (1433), 0 states have call successors, (0), 0 states 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 07:49:32,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:49:32,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 405 [2023-08-25 07:49:32,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:49:35,403 INFO L124 PetriNetUnfolderBase]: 16545/24796 cut-off events. [2023-08-25 07:49:35,404 INFO L125 PetriNetUnfolderBase]: For 113812/113814 co-relation queries the response was YES. [2023-08-25 07:49:35,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110687 conditions, 24796 events. 16545/24796 cut-off events. For 113812/113814 co-relation queries the response was YES. Maximal size of possible extension queue 482. Compared 142659 event pairs, 5048 based on Foata normal form. 485/23946 useless extension candidates. Maximal degree in co-relation 110659. Up to 14799 conditions per place. [2023-08-25 07:49:35,550 INFO L140 encePairwiseOnDemand]: 399/405 looper letters, 404 selfloop transitions, 18 changer transitions 0/430 dead transitions. [2023-08-25 07:49:35,550 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 430 transitions, 3424 flow [2023-08-25 07:49:35,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-25 07:49:35,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-25 07:49:35,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1390 transitions. [2023-08-25 07:49:35,553 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49029982363315694 [2023-08-25 07:49:35,553 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1390 transitions. [2023-08-25 07:49:35,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1390 transitions. [2023-08-25 07:49:35,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:49:35,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1390 transitions. [2023-08-25 07:49:35,556 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 198.57142857142858) internal successors, (1390), 7 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states 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 07:49:35,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 405.0) internal successors, (3240), 8 states have internal predecessors, (3240), 0 states have call successors, (0), 0 states 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 07:49:35,559 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 405.0) internal successors, (3240), 8 states have internal predecessors, (3240), 0 states have call successors, (0), 0 states 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 07:49:35,559 INFO L175 Difference]: Start difference. First operand has 131 places, 206 transitions, 1925 flow. Second operand 7 states and 1390 transitions. [2023-08-25 07:49:35,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 430 transitions, 3424 flow [2023-08-25 07:49:35,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 430 transitions, 3335 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-08-25 07:49:35,992 INFO L231 Difference]: Finished difference. Result has 130 places, 205 transitions, 1858 flow [2023-08-25 07:49:35,992 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=1822, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1858, PETRI_PLACES=130, PETRI_TRANSITIONS=205} [2023-08-25 07:49:35,992 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 27 predicate places. [2023-08-25 07:49:35,993 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 205 transitions, 1858 flow [2023-08-25 07:49:35,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 159.22222222222223) internal successors, (1433), 9 states have internal predecessors, (1433), 0 states have call successors, (0), 0 states 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 07:49:35,993 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:49:35,993 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:49:35,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 07:49:35,994 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 07:49:35,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:49:35,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1424042626, now seen corresponding path program 1 times [2023-08-25 07:49:35,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:49:35,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512474522] [2023-08-25 07:49:35,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:49:35,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:49:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:49:36,161 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 07:49:36,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:49:36,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512474522] [2023-08-25 07:49:36,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512474522] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:49:36,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:49:36,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 07:49:36,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604441890] [2023-08-25 07:49:36,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:49:36,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 07:49:36,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:49:36,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 07:49:36,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 07:49:36,164 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 405 [2023-08-25 07:49:36,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 205 transitions, 1858 flow. Second operand has 6 states, 6 states have (on average 173.16666666666666) internal successors, (1039), 6 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states 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 07:49:36,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:49:36,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 405 [2023-08-25 07:49:36,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:49:40,173 INFO L124 PetriNetUnfolderBase]: 27103/41286 cut-off events. [2023-08-25 07:49:40,173 INFO L125 PetriNetUnfolderBase]: For 215641/215641 co-relation queries the response was YES. [2023-08-25 07:49:40,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179721 conditions, 41286 events. 27103/41286 cut-off events. For 215641/215641 co-relation queries the response was YES. Maximal size of possible extension queue 848. Compared 262892 event pairs, 4548 based on Foata normal form. 0/39114 useless extension candidates. Maximal degree in co-relation 179698. Up to 30521 conditions per place. [2023-08-25 07:49:40,471 INFO L140 encePairwiseOnDemand]: 394/405 looper letters, 310 selfloop transitions, 358 changer transitions 0/676 dead transitions. [2023-08-25 07:49:40,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 676 transitions, 8922 flow [2023-08-25 07:49:40,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 07:49:40,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 07:49:40,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1152 transitions. [2023-08-25 07:49:40,474 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4740740740740741 [2023-08-25 07:49:40,474 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1152 transitions. [2023-08-25 07:49:40,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1152 transitions. [2023-08-25 07:49:40,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:49:40,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1152 transitions. [2023-08-25 07:49:40,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 192.0) internal successors, (1152), 6 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states 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 07:49:40,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 405.0) internal successors, (2835), 7 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states 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 07:49:40,479 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 405.0) internal successors, (2835), 7 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states 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 07:49:40,479 INFO L175 Difference]: Start difference. First operand has 130 places, 205 transitions, 1858 flow. Second operand 6 states and 1152 transitions. [2023-08-25 07:49:40,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 676 transitions, 8922 flow [2023-08-25 07:49:40,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 676 transitions, 8811 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-25 07:49:40,867 INFO L231 Difference]: Finished difference. Result has 135 places, 562 transitions, 8219 flow [2023-08-25 07:49:40,867 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=1827, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=8219, PETRI_PLACES=135, PETRI_TRANSITIONS=562} [2023-08-25 07:49:40,868 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 32 predicate places. [2023-08-25 07:49:40,868 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 562 transitions, 8219 flow [2023-08-25 07:49:40,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.16666666666666) internal successors, (1039), 6 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states 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 07:49:40,868 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:49:40,868 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:49:40,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 07:49:40,868 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 07:49:40,869 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:49:40,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1384939924, now seen corresponding path program 1 times [2023-08-25 07:49:40,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:49:40,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115829777] [2023-08-25 07:49:40,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:49:40,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:49:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:49:41,098 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 07:49:41,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:49:41,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115829777] [2023-08-25 07:49:41,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115829777] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:49:41,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:49:41,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 07:49:41,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059462208] [2023-08-25 07:49:41,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:49:41,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 07:49:41,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:49:41,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 07:49:41,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-25 07:49:41,101 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 405 [2023-08-25 07:49:41,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 562 transitions, 8219 flow. Second operand has 9 states, 9 states have (on average 160.88888888888889) internal successors, (1448), 9 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states 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 07:49:41,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:49:41,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 405 [2023-08-25 07:49:41,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:49:46,595 INFO L124 PetriNetUnfolderBase]: 26021/39855 cut-off events. [2023-08-25 07:49:46,596 INFO L125 PetriNetUnfolderBase]: For 274322/274322 co-relation queries the response was YES. [2023-08-25 07:49:46,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203074 conditions, 39855 events. 26021/39855 cut-off events. For 274322/274322 co-relation queries the response was YES. Maximal size of possible extension queue 814. Compared 250310 event pairs, 3937 based on Foata normal form. 435/38528 useless extension candidates. Maximal degree in co-relation 203047. Up to 23422 conditions per place. [2023-08-25 07:49:47,029 INFO L140 encePairwiseOnDemand]: 397/405 looper letters, 754 selfloop transitions, 51 changer transitions 0/813 dead transitions. [2023-08-25 07:49:47,029 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 813 transitions, 13036 flow [2023-08-25 07:49:47,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 07:49:47,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 07:49:47,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1387 transitions. [2023-08-25 07:49:47,032 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4280864197530864 [2023-08-25 07:49:47,032 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1387 transitions. [2023-08-25 07:49:47,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1387 transitions. [2023-08-25 07:49:47,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:49:47,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1387 transitions. [2023-08-25 07:49:47,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 173.375) internal successors, (1387), 8 states have internal predecessors, (1387), 0 states have call successors, (0), 0 states 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 07:49:47,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 405.0) internal successors, (3645), 9 states have internal predecessors, (3645), 0 states have call successors, (0), 0 states 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 07:49:47,038 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 405.0) internal successors, (3645), 9 states have internal predecessors, (3645), 0 states have call successors, (0), 0 states 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 07:49:47,038 INFO L175 Difference]: Start difference. First operand has 135 places, 562 transitions, 8219 flow. Second operand 8 states and 1387 transitions. [2023-08-25 07:49:47,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 813 transitions, 13036 flow [2023-08-25 07:49:47,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 813 transitions, 13036 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 07:49:47,373 INFO L231 Difference]: Finished difference. Result has 141 places, 561 transitions, 8317 flow [2023-08-25 07:49:47,374 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=8215, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=561, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=510, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=8317, PETRI_PLACES=141, PETRI_TRANSITIONS=561} [2023-08-25 07:49:47,374 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 38 predicate places. [2023-08-25 07:49:47,374 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 561 transitions, 8317 flow [2023-08-25 07:49:47,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 160.88888888888889) internal successors, (1448), 9 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states 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 07:49:47,375 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:49:47,375 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:49:47,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 07:49:47,375 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 07:49:47,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:49:47,376 INFO L85 PathProgramCache]: Analyzing trace with hash 579960516, now seen corresponding path program 1 times [2023-08-25 07:49:47,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:49:47,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178272423] [2023-08-25 07:49:47,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:49:47,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:49:47,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:49:47,597 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 07:49:47,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:49:47,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178272423] [2023-08-25 07:49:47,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178272423] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:49:47,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:49:47,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 07:49:47,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226530006] [2023-08-25 07:49:47,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:49:47,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 07:49:47,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:49:47,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 07:49:47,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 07:49:47,599 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 405 [2023-08-25 07:49:47,599 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 561 transitions, 8317 flow. Second operand has 6 states, 6 states have (on average 174.5) internal successors, (1047), 6 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states 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 07:49:47,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:49:47,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 405 [2023-08-25 07:49:47,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:49:53,910 INFO L124 PetriNetUnfolderBase]: 30161/46311 cut-off events. [2023-08-25 07:49:53,910 INFO L125 PetriNetUnfolderBase]: For 324636/324636 co-relation queries the response was YES. [2023-08-25 07:49:54,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236552 conditions, 46311 events. 30161/46311 cut-off events. For 324636/324636 co-relation queries the response was YES. Maximal size of possible extension queue 807. Compared 300340 event pairs, 5063 based on Foata normal form. 0/44451 useless extension candidates. Maximal degree in co-relation 236524. Up to 36456 conditions per place. [2023-08-25 07:49:54,344 INFO L140 encePairwiseOnDemand]: 395/405 looper letters, 618 selfloop transitions, 255 changer transitions 0/880 dead transitions. [2023-08-25 07:49:54,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 880 transitions, 14465 flow [2023-08-25 07:49:54,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 07:49:54,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 07:49:54,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1140 transitions. [2023-08-25 07:49:54,347 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4691358024691358 [2023-08-25 07:49:54,347 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1140 transitions. [2023-08-25 07:49:54,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1140 transitions. [2023-08-25 07:49:54,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:49:54,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1140 transitions. [2023-08-25 07:49:54,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 0 states have call successors, (0), 0 states 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 07:49:54,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 405.0) internal successors, (2835), 7 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states 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 07:49:54,352 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 405.0) internal successors, (2835), 7 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states 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 07:49:54,352 INFO L175 Difference]: Start difference. First operand has 141 places, 561 transitions, 8317 flow. Second operand 6 states and 1140 transitions. [2023-08-25 07:49:54,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 880 transitions, 14465 flow [2023-08-25 07:49:54,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 880 transitions, 14329 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-08-25 07:49:54,746 INFO L231 Difference]: Finished difference. Result has 144 places, 798 transitions, 13113 flow [2023-08-25 07:49:54,747 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=8215, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=561, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=13113, PETRI_PLACES=144, PETRI_TRANSITIONS=798} [2023-08-25 07:49:54,747 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 41 predicate places. [2023-08-25 07:49:54,747 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 798 transitions, 13113 flow [2023-08-25 07:49:54,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 174.5) internal successors, (1047), 6 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states 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 07:49:54,748 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:49:54,748 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:49:54,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 07:49:54,749 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 07:49:54,749 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:49:54,749 INFO L85 PathProgramCache]: Analyzing trace with hash -798022611, now seen corresponding path program 1 times [2023-08-25 07:49:54,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:49:54,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731704144] [2023-08-25 07:49:54,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:49:54,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:49:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:49:55,032 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 07:49:55,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:49:55,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731704144] [2023-08-25 07:49:55,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731704144] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:49:55,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:49:55,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 07:49:55,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680100642] [2023-08-25 07:49:55,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:49:55,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 07:49:55,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:49:55,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 07:49:55,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-25 07:49:55,035 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 405 [2023-08-25 07:49:55,036 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 798 transitions, 13113 flow. Second operand has 9 states, 9 states have (on average 161.77777777777777) internal successors, (1456), 9 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states 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 07:49:55,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:49:55,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 405 [2023-08-25 07:49:55,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:50:01,988 INFO L124 PetriNetUnfolderBase]: 29774/45839 cut-off events. [2023-08-25 07:50:01,988 INFO L125 PetriNetUnfolderBase]: For 383011/383011 co-relation queries the response was YES. [2023-08-25 07:50:02,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256536 conditions, 45839 events. 29774/45839 cut-off events. For 383011/383011 co-relation queries the response was YES. Maximal size of possible extension queue 813. Compared 297880 event pairs, 4407 based on Foata normal form. 203/44395 useless extension candidates. Maximal degree in co-relation 256504. Up to 24286 conditions per place. [2023-08-25 07:50:02,497 INFO L140 encePairwiseOnDemand]: 397/405 looper letters, 914 selfloop transitions, 68 changer transitions 0/989 dead transitions. [2023-08-25 07:50:02,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 989 transitions, 17704 flow [2023-08-25 07:50:02,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 07:50:02,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 07:50:02,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1383 transitions. [2023-08-25 07:50:02,505 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42685185185185187 [2023-08-25 07:50:02,505 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1383 transitions. [2023-08-25 07:50:02,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1383 transitions. [2023-08-25 07:50:02,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:50:02,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1383 transitions. [2023-08-25 07:50:02,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 172.875) internal successors, (1383), 8 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states 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 07:50:02,527 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 405.0) internal successors, (3645), 9 states have internal predecessors, (3645), 0 states have call successors, (0), 0 states 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 07:50:02,527 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 405.0) internal successors, (3645), 9 states have internal predecessors, (3645), 0 states have call successors, (0), 0 states 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 07:50:02,528 INFO L175 Difference]: Start difference. First operand has 144 places, 798 transitions, 13113 flow. Second operand 8 states and 1383 transitions. [2023-08-25 07:50:02,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 989 transitions, 17704 flow [2023-08-25 07:50:03,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 989 transitions, 17272 flow, removed 216 selfloop flow, removed 0 redundant places. [2023-08-25 07:50:03,287 INFO L231 Difference]: Finished difference. Result has 150 places, 797 transitions, 12813 flow [2023-08-25 07:50:03,288 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=12677, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=797, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=729, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=12813, PETRI_PLACES=150, PETRI_TRANSITIONS=797} [2023-08-25 07:50:03,288 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 47 predicate places. [2023-08-25 07:50:03,288 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 797 transitions, 12813 flow [2023-08-25 07:50:03,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 161.77777777777777) internal successors, (1456), 9 states have internal predecessors, (1456), 0 states have call successors, (0), 0 states 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 07:50:03,289 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:50:03,289 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:50:03,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-25 07:50:03,289 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 07:50:03,289 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:50:03,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1599923243, now seen corresponding path program 1 times [2023-08-25 07:50:03,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:50:03,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856883527] [2023-08-25 07:50:03,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:50:03,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:50:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:50:03,541 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 07:50:03,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:50:03,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856883527] [2023-08-25 07:50:03,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856883527] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:50:03,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:50:03,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 07:50:03,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182270287] [2023-08-25 07:50:03,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:50:03,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 07:50:03,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:50:03,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 07:50:03,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 07:50:03,543 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 405 [2023-08-25 07:50:03,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 797 transitions, 12813 flow. Second operand has 6 states, 6 states have (on average 175.66666666666666) internal successors, (1054), 6 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states 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 07:50:03,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:50:03,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 405 [2023-08-25 07:50:03,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:50:10,581 INFO L124 PetriNetUnfolderBase]: 29964/46781 cut-off events. [2023-08-25 07:50:10,581 INFO L125 PetriNetUnfolderBase]: For 358764/358764 co-relation queries the response was YES. [2023-08-25 07:50:10,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 255619 conditions, 46781 events. 29964/46781 cut-off events. For 358764/358764 co-relation queries the response was YES. Maximal size of possible extension queue 807. Compared 311411 event pairs, 5554 based on Foata normal form. 0/45272 useless extension candidates. Maximal degree in co-relation 255586. Up to 39677 conditions per place. [2023-08-25 07:50:10,952 INFO L140 encePairwiseOnDemand]: 396/405 looper letters, 829 selfloop transitions, 272 changer transitions 0/1108 dead transitions. [2023-08-25 07:50:10,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 1108 transitions, 19793 flow [2023-08-25 07:50:10,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 07:50:10,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 07:50:10,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1127 transitions. [2023-08-25 07:50:10,954 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4637860082304527 [2023-08-25 07:50:10,955 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1127 transitions. [2023-08-25 07:50:10,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1127 transitions. [2023-08-25 07:50:10,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:50:10,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1127 transitions. [2023-08-25 07:50:10,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 187.83333333333334) internal successors, (1127), 6 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states 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 07:50:10,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 405.0) internal successors, (2835), 7 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states 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 07:50:10,959 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 405.0) internal successors, (2835), 7 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states 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 07:50:10,959 INFO L175 Difference]: Start difference. First operand has 150 places, 797 transitions, 12813 flow. Second operand 6 states and 1127 transitions. [2023-08-25 07:50:10,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 1108 transitions, 19793 flow [2023-08-25 07:50:11,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 1108 transitions, 19623 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-08-25 07:50:11,612 INFO L231 Difference]: Finished difference. Result has 153 places, 1034 transitions, 18037 flow [2023-08-25 07:50:11,612 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=12677, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=797, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=687, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=18037, PETRI_PLACES=153, PETRI_TRANSITIONS=1034} [2023-08-25 07:50:11,612 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 50 predicate places. [2023-08-25 07:50:11,612 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 1034 transitions, 18037 flow [2023-08-25 07:50:11,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.66666666666666) internal successors, (1054), 6 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states 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 07:50:11,613 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:50:11,613 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:50:11,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-25 07:50:11,613 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 07:50:11,613 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:50:11,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1765223706, now seen corresponding path program 1 times [2023-08-25 07:50:11,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:50:11,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270171697] [2023-08-25 07:50:11,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:50:11,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:50:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:50:11,911 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 07:50:11,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:50:11,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270171697] [2023-08-25 07:50:11,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270171697] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:50:11,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:50:11,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 07:50:11,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369852441] [2023-08-25 07:50:11,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:50:11,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 07:50:11,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:50:11,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 07:50:11,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-08-25 07:50:11,915 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 405 [2023-08-25 07:50:11,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 1034 transitions, 18037 flow. Second operand has 9 states, 9 states have (on average 162.55555555555554) internal successors, (1463), 9 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states 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 07:50:11,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:50:11,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 405 [2023-08-25 07:50:11,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:50:20,192 INFO L124 PetriNetUnfolderBase]: 29852/46612 cut-off events. [2023-08-25 07:50:20,192 INFO L125 PetriNetUnfolderBase]: For 394258/394258 co-relation queries the response was YES. [2023-08-25 07:50:20,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 266773 conditions, 46612 events. 29852/46612 cut-off events. For 394258/394258 co-relation queries the response was YES. Maximal size of possible extension queue 813. Compared 310461 event pairs, 4887 based on Foata normal form. 87/45269 useless extension candidates. Maximal degree in co-relation 266736. Up to 34997 conditions per place. [2023-08-25 07:50:20,790 INFO L140 encePairwiseOnDemand]: 397/405 looper letters, 1097 selfloop transitions, 85 changer transitions 0/1189 dead transitions. [2023-08-25 07:50:20,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 1189 transitions, 22544 flow [2023-08-25 07:50:20,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 07:50:20,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 07:50:20,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1378 transitions. [2023-08-25 07:50:20,812 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42530864197530865 [2023-08-25 07:50:20,812 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1378 transitions. [2023-08-25 07:50:20,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1378 transitions. [2023-08-25 07:50:20,813 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:50:20,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1378 transitions. [2023-08-25 07:50:20,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 172.25) internal successors, (1378), 8 states have internal predecessors, (1378), 0 states have call successors, (0), 0 states 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 07:50:20,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 405.0) internal successors, (3645), 9 states have internal predecessors, (3645), 0 states have call successors, (0), 0 states 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 07:50:20,817 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 405.0) internal successors, (3645), 9 states have internal predecessors, (3645), 0 states have call successors, (0), 0 states 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 07:50:20,817 INFO L175 Difference]: Start difference. First operand has 153 places, 1034 transitions, 18037 flow. Second operand 8 states and 1378 transitions. [2023-08-25 07:50:20,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 1189 transitions, 22544 flow [2023-08-25 07:50:21,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 1189 transitions, 22400 flow, removed 72 selfloop flow, removed 0 redundant places. [2023-08-25 07:50:21,878 INFO L231 Difference]: Finished difference. Result has 159 places, 1033 transitions, 18059 flow [2023-08-25 07:50:21,878 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=17889, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1033, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=948, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=18059, PETRI_PLACES=159, PETRI_TRANSITIONS=1033} [2023-08-25 07:50:21,880 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 56 predicate places. [2023-08-25 07:50:21,880 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 1033 transitions, 18059 flow [2023-08-25 07:50:21,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 162.55555555555554) internal successors, (1463), 9 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states 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 07:50:21,880 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:50:21,880 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:50:21,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-25 07:50:21,880 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 07:50:21,881 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:50:21,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1881566130, now seen corresponding path program 1 times [2023-08-25 07:50:21,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:50:21,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930340703] [2023-08-25 07:50:21,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:50:21,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:50:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:50:22,169 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 07:50:22,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:50:22,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930340703] [2023-08-25 07:50:22,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930340703] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:50:22,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:50:22,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-25 07:50:22,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461620599] [2023-08-25 07:50:22,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:50:22,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 07:50:22,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:50:22,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 07:50:22,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-25 07:50:22,173 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 405 [2023-08-25 07:50:22,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 1033 transitions, 18059 flow. Second operand has 6 states, 6 states have (on average 176.83333333333334) internal successors, (1061), 6 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states 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 07:50:22,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:50:22,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 405 [2023-08-25 07:50:22,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:50:30,296 INFO L124 PetriNetUnfolderBase]: 29443/46231 cut-off events. [2023-08-25 07:50:30,296 INFO L125 PetriNetUnfolderBase]: For 384078/384078 co-relation queries the response was YES. [2023-08-25 07:50:30,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 264497 conditions, 46231 events. 29443/46231 cut-off events. For 384078/384078 co-relation queries the response was YES. Maximal size of possible extension queue 807. Compared 310244 event pairs, 5934 based on Foata normal form. 0/44989 useless extension candidates. Maximal degree in co-relation 264459. Up to 41994 conditions per place. [2023-08-25 07:50:30,835 INFO L140 encePairwiseOnDemand]: 397/405 looper letters, 1040 selfloop transitions, 217 changer transitions 0/1264 dead transitions. [2023-08-25 07:50:30,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 1264 transitions, 24471 flow [2023-08-25 07:50:30,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-25 07:50:30,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-25 07:50:30,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1114 transitions. [2023-08-25 07:50:30,837 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45843621399176954 [2023-08-25 07:50:30,837 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1114 transitions. [2023-08-25 07:50:30,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1114 transitions. [2023-08-25 07:50:30,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:50:30,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1114 transitions. [2023-08-25 07:50:30,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 185.66666666666666) internal successors, (1114), 6 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states 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 07:50:30,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 405.0) internal successors, (2835), 7 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states 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 07:50:30,841 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 405.0) internal successors, (2835), 7 states have internal predecessors, (2835), 0 states have call successors, (0), 0 states 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 07:50:30,841 INFO L175 Difference]: Start difference. First operand has 159 places, 1033 transitions, 18059 flow. Second operand 6 states and 1114 transitions. [2023-08-25 07:50:30,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 1264 transitions, 24471 flow [2023-08-25 07:50:31,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 1264 transitions, 24267 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-08-25 07:50:31,860 INFO L231 Difference]: Finished difference. Result has 162 places, 1198 transitions, 22131 flow [2023-08-25 07:50:31,861 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=17889, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1033, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=924, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=22131, PETRI_PLACES=162, PETRI_TRANSITIONS=1198} [2023-08-25 07:50:31,862 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 59 predicate places. [2023-08-25 07:50:31,862 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 1198 transitions, 22131 flow [2023-08-25 07:50:31,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 176.83333333333334) internal successors, (1061), 6 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states 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 07:50:31,862 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:50:31,862 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:50:31,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-25 07:50:31,862 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 07:50:31,862 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:50:31,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1876233556, now seen corresponding path program 1 times [2023-08-25 07:50:31,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:50:31,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672462626] [2023-08-25 07:50:31,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:50:31,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:50:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:50:32,183 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 07:50:32,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:50:32,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672462626] [2023-08-25 07:50:32,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672462626] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:50:32,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:50:32,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-25 07:50:32,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653042042] [2023-08-25 07:50:32,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:50:32,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-25 07:50:32,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:50:32,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-25 07:50:32,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-25 07:50:32,185 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 405 [2023-08-25 07:50:32,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 1198 transitions, 22131 flow. Second operand has 9 states, 9 states have (on average 151.33333333333334) internal successors, (1362), 9 states have internal predecessors, (1362), 0 states have call successors, (0), 0 states 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 07:50:32,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:50:32,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 405 [2023-08-25 07:50:32,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:50:41,471 INFO L124 PetriNetUnfolderBase]: 29425/46177 cut-off events. [2023-08-25 07:50:41,472 INFO L125 PetriNetUnfolderBase]: For 400786/400788 co-relation queries the response was YES. [2023-08-25 07:50:41,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268853 conditions, 46177 events. 29425/46177 cut-off events. For 400786/400788 co-relation queries the response was YES. Maximal size of possible extension queue 813. Compared 309822 event pairs, 5230 based on Foata normal form. 29/44993 useless extension candidates. Maximal degree in co-relation 268811. Up to 40769 conditions per place. [2023-08-25 07:50:41,953 INFO L140 encePairwiseOnDemand]: 397/405 looper letters, 1172 selfloop transitions, 102 changer transitions 0/1281 dead transitions. [2023-08-25 07:50:41,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 1281 transitions, 25422 flow [2023-08-25 07:50:41,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-25 07:50:41,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-25 07:50:41,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1277 transitions. [2023-08-25 07:50:41,957 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3941358024691358 [2023-08-25 07:50:41,957 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1277 transitions. [2023-08-25 07:50:41,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1277 transitions. [2023-08-25 07:50:41,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:50:41,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1277 transitions. [2023-08-25 07:50:41,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 159.625) internal successors, (1277), 8 states have internal predecessors, (1277), 0 states have call successors, (0), 0 states 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 07:50:41,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 405.0) internal successors, (3645), 9 states have internal predecessors, (3645), 0 states have call successors, (0), 0 states 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 07:50:41,975 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 405.0) internal successors, (3645), 9 states have internal predecessors, (3645), 0 states have call successors, (0), 0 states 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 07:50:41,975 INFO L175 Difference]: Start difference. First operand has 162 places, 1198 transitions, 22131 flow. Second operand 8 states and 1277 transitions. [2023-08-25 07:50:41,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 1281 transitions, 25422 flow [2023-08-25 07:50:43,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 1281 transitions, 25350 flow, removed 36 selfloop flow, removed 0 redundant places. [2023-08-25 07:50:43,072 INFO L231 Difference]: Finished difference. Result has 168 places, 1197 transitions, 22259 flow [2023-08-25 07:50:43,073 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=22055, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1095, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=22259, PETRI_PLACES=168, PETRI_TRANSITIONS=1197} [2023-08-25 07:50:43,074 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 65 predicate places. [2023-08-25 07:50:43,074 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 1197 transitions, 22259 flow [2023-08-25 07:50:43,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 151.33333333333334) internal successors, (1362), 9 states have internal predecessors, (1362), 0 states have call successors, (0), 0 states 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 07:50:43,075 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:50:43,080 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:50:43,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-25 07:50:43,080 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 07:50:43,080 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:50:43,081 INFO L85 PathProgramCache]: Analyzing trace with hash 886461752, now seen corresponding path program 1 times [2023-08-25 07:50:43,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:50:43,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517057064] [2023-08-25 07:50:43,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:50:43,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:50:43,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:50:43,234 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 07:50:43,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:50:43,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517057064] [2023-08-25 07:50:43,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517057064] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:50:43,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:50:43,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:50:43,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194259152] [2023-08-25 07:50:43,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:50:43,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:50:43,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:50:43,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:50:43,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:50:43,236 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 405 [2023-08-25 07:50:43,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 1197 transitions, 22259 flow. Second operand has 3 states, 3 states have (on average 218.33333333333334) internal successors, (655), 3 states have internal predecessors, (655), 0 states have call successors, (0), 0 states 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 07:50:43,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:50:43,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 405 [2023-08-25 07:50:43,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:50:51,926 INFO L124 PetriNetUnfolderBase]: 32013/52603 cut-off events. [2023-08-25 07:50:51,927 INFO L125 PetriNetUnfolderBase]: For 708662/711001 co-relation queries the response was YES. [2023-08-25 07:50:52,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320436 conditions, 52603 events. 32013/52603 cut-off events. For 708662/711001 co-relation queries the response was YES. Maximal size of possible extension queue 1314. Compared 405073 event pairs, 1231 based on Foata normal form. 1818/52766 useless extension candidates. Maximal degree in co-relation 320393. Up to 31423 conditions per place. [2023-08-25 07:50:52,527 INFO L140 encePairwiseOnDemand]: 397/405 looper letters, 682 selfloop transitions, 683 changer transitions 510/1952 dead transitions. [2023-08-25 07:50:52,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 1952 transitions, 41365 flow [2023-08-25 07:50:52,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:50:52,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:50:52,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 686 transitions. [2023-08-25 07:50:52,528 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5646090534979424 [2023-08-25 07:50:52,528 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 686 transitions. [2023-08-25 07:50:52,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 686 transitions. [2023-08-25 07:50:52,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:50:52,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 686 transitions. [2023-08-25 07:50:52,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 228.66666666666666) internal successors, (686), 3 states have internal predecessors, (686), 0 states have call successors, (0), 0 states 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 07:50:52,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 405.0) internal successors, (1620), 4 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states 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 07:50:52,531 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 405.0) internal successors, (1620), 4 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states 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 07:50:52,531 INFO L175 Difference]: Start difference. First operand has 168 places, 1197 transitions, 22259 flow. Second operand 3 states and 686 transitions. [2023-08-25 07:50:52,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 1952 transitions, 41365 flow [2023-08-25 07:50:53,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 1952 transitions, 41059 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-08-25 07:50:53,892 INFO L231 Difference]: Finished difference. Result has 165 places, 1417 transitions, 29658 flow [2023-08-25 07:50:53,892 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=22055, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=231, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=514, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=29658, PETRI_PLACES=165, PETRI_TRANSITIONS=1417} [2023-08-25 07:50:53,893 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 62 predicate places. [2023-08-25 07:50:53,893 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 1417 transitions, 29658 flow [2023-08-25 07:50:53,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 218.33333333333334) internal successors, (655), 3 states have internal predecessors, (655), 0 states have call successors, (0), 0 states 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 07:50:53,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:50:53,893 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:50:53,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-25 07:50:53,893 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-25 07:50:53,893 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:50:53,893 INFO L85 PathProgramCache]: Analyzing trace with hash -113690685, now seen corresponding path program 1 times [2023-08-25 07:50:53,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:50:53,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180890215] [2023-08-25 07:50:53,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:50:53,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:50:53,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:50:54,093 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 07:50:54,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:50:54,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180890215] [2023-08-25 07:50:54,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180890215] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:50:54,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:50:54,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:50:54,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016019479] [2023-08-25 07:50:54,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:50:54,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:50:54,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:50:54,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:50:54,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:50:54,097 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 405 [2023-08-25 07:50:54,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 1417 transitions, 29658 flow. Second operand has 3 states, 3 states have (on average 218.33333333333334) internal successors, (655), 3 states have internal predecessors, (655), 0 states have call successors, (0), 0 states 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 07:50:54,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:50:54,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 405 [2023-08-25 07:50:54,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:51:04,131 INFO L124 PetriNetUnfolderBase]: 33741/55721 cut-off events. [2023-08-25 07:51:04,131 INFO L125 PetriNetUnfolderBase]: For 1025313/1027723 co-relation queries the response was YES. [2023-08-25 07:51:04,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383019 conditions, 55721 events. 33741/55721 cut-off events. For 1025313/1027723 co-relation queries the response was YES. Maximal size of possible extension queue 1393. Compared 434193 event pairs, 1406 based on Foata normal form. 1582/55432 useless extension candidates. Maximal degree in co-relation 382975. Up to 32901 conditions per place. [2023-08-25 07:51:04,763 INFO L140 encePairwiseOnDemand]: 398/405 looper letters, 0 selfloop transitions, 0 changer transitions 1740/1740 dead transitions. [2023-08-25 07:51:04,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 1740 transitions, 40224 flow [2023-08-25 07:51:04,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:51:04,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:51:04,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2023-08-25 07:51:04,765 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5613168724279836 [2023-08-25 07:51:04,765 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 682 transitions. [2023-08-25 07:51:04,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 682 transitions. [2023-08-25 07:51:04,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:51:04,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 682 transitions. [2023-08-25 07:51:04,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states 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 07:51:04,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 405.0) internal successors, (1620), 4 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states 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 07:51:04,768 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 405.0) internal successors, (1620), 4 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states 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 07:51:04,768 INFO L175 Difference]: Start difference. First operand has 165 places, 1417 transitions, 29658 flow. Second operand 3 states and 682 transitions. [2023-08-25 07:51:04,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 1740 transitions, 40224 flow [2023-08-25 07:51:06,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 1740 transitions, 37988 flow, removed 180 selfloop flow, removed 2 redundant places. [2023-08-25 07:51:06,283 INFO L231 Difference]: Finished difference. Result has 164 places, 0 transitions, 0 flow [2023-08-25 07:51:06,283 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=405, PETRI_DIFFERENCE_MINUEND_FLOW=27928, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1416, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=164, PETRI_TRANSITIONS=0} [2023-08-25 07:51:06,284 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 61 predicate places. [2023-08-25 07:51:06,284 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 0 transitions, 0 flow [2023-08-25 07:51:06,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 218.33333333333334) internal successors, (655), 3 states have internal predecessors, (655), 0 states have call successors, (0), 0 states 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 07:51:06,286 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONDATA_RACE (40 of 41 remaining) [2023-08-25 07:51:06,287 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONDATA_RACE (39 of 41 remaining) [2023-08-25 07:51:06,287 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONDATA_RACE (38 of 41 remaining) [2023-08-25 07:51:06,287 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONDATA_RACE (37 of 41 remaining) [2023-08-25 07:51:06,287 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONDATA_RACE (36 of 41 remaining) [2023-08-25 07:51:06,287 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 41 remaining) [2023-08-25 07:51:06,287 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 41 remaining) [2023-08-25 07:51:06,287 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 41 remaining) [2023-08-25 07:51:06,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 41 remaining) [2023-08-25 07:51:06,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 41 remaining) [2023-08-25 07:51:06,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (30 of 41 remaining) [2023-08-25 07:51:06,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (29 of 41 remaining) [2023-08-25 07:51:06,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (28 of 41 remaining) [2023-08-25 07:51:06,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (27 of 41 remaining) [2023-08-25 07:51:06,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (26 of 41 remaining) [2023-08-25 07:51:06,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 41 remaining) [2023-08-25 07:51:06,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 41 remaining) [2023-08-25 07:51:06,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 41 remaining) [2023-08-25 07:51:06,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 41 remaining) [2023-08-25 07:51:06,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 41 remaining) [2023-08-25 07:51:06,288 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (20 of 41 remaining) [2023-08-25 07:51:06,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 41 remaining) [2023-08-25 07:51:06,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONDATA_RACE (18 of 41 remaining) [2023-08-25 07:51:06,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONDATA_RACE (17 of 41 remaining) [2023-08-25 07:51:06,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONDATA_RACE (16 of 41 remaining) [2023-08-25 07:51:06,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONDATA_RACE (15 of 41 remaining) [2023-08-25 07:51:06,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONDATA_RACE (14 of 41 remaining) [2023-08-25 07:51:06,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 41 remaining) [2023-08-25 07:51:06,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 41 remaining) [2023-08-25 07:51:06,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 41 remaining) [2023-08-25 07:51:06,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 41 remaining) [2023-08-25 07:51:06,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 41 remaining) [2023-08-25 07:51:06,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (8 of 41 remaining) [2023-08-25 07:51:06,289 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (7 of 41 remaining) [2023-08-25 07:51:06,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 41 remaining) [2023-08-25 07:51:06,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (5 of 41 remaining) [2023-08-25 07:51:06,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (4 of 41 remaining) [2023-08-25 07:51:06,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 41 remaining) [2023-08-25 07:51:06,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 41 remaining) [2023-08-25 07:51:06,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (1 of 41 remaining) [2023-08-25 07:51:06,290 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (0 of 41 remaining) [2023-08-25 07:51:06,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-25 07:51:06,290 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:51:06,293 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 07:51:06,293 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 07:51:06,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:51:06 BasicIcfg [2023-08-25 07:51:06,295 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 07:51:06,295 INFO L158 Benchmark]: Toolchain (without parser) took 110948.50ms. Allocated memory was 329.3MB in the beginning and 14.6GB in the end (delta: 14.2GB). Free memory was 302.4MB in the beginning and 9.1GB in the end (delta: -8.8GB). Peak memory consumption was 5.8GB. Max. memory is 16.0GB. [2023-08-25 07:51:06,296 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 329.3MB. Free memory was 305.1MB in the beginning and 304.9MB in the end (delta: 169.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 07:51:06,296 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.10ms. Allocated memory is still 329.3MB. Free memory was 302.4MB in the beginning and 268.7MB in the end (delta: 33.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. [2023-08-25 07:51:06,296 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.74ms. Allocated memory is still 329.3MB. Free memory was 268.7MB in the beginning and 266.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 07:51:06,296 INFO L158 Benchmark]: Boogie Preprocessor took 24.50ms. Allocated memory is still 329.3MB. Free memory was 266.1MB in the beginning and 264.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 07:51:06,296 INFO L158 Benchmark]: RCFGBuilder took 527.90ms. Allocated memory is still 329.3MB. Free memory was 264.0MB in the beginning and 293.2MB in the end (delta: -29.3MB). Peak memory consumption was 16.3MB. Max. memory is 16.0GB. [2023-08-25 07:51:06,296 INFO L158 Benchmark]: TraceAbstraction took 109876.50ms. Allocated memory was 329.3MB in the beginning and 14.6GB in the end (delta: 14.2GB). Free memory was 293.2MB in the beginning and 9.1GB in the end (delta: -8.8GB). Peak memory consumption was 5.8GB. Max. memory is 16.0GB. [2023-08-25 07:51:06,297 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 329.3MB. Free memory was 305.1MB in the beginning and 304.9MB in the end (delta: 169.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 479.10ms. Allocated memory is still 329.3MB. Free memory was 302.4MB in the beginning and 268.7MB in the end (delta: 33.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 35.74ms. Allocated memory is still 329.3MB. Free memory was 268.7MB in the beginning and 266.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 24.50ms. Allocated memory is still 329.3MB. Free memory was 266.1MB in the beginning and 264.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 527.90ms. Allocated memory is still 329.3MB. Free memory was 264.0MB in the beginning and 293.2MB in the end (delta: -29.3MB). Peak memory consumption was 16.3MB. Max. memory is 16.0GB. * TraceAbstraction took 109876.50ms. Allocated memory was 329.3MB in the beginning and 14.6GB in the end (delta: 14.2GB). Free memory was 293.2MB in the beginning and 9.1GB in the end (delta: -8.8GB). Peak memory consumption was 5.8GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 283]: Unsoundness Warning unspecified type, defaulting to int C: short [283] - GenericResultAtLocation [Line: 283]: Unsoundness Warning unspecified type, defaulting to int C: short [283] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.2s, 197 PlacesBefore, 103 PlacesAfterwards, 184 TransitionsBefore, 89 TransitionsAfterwards, 4608 CoEnabledTransitionPairs, 6 FixpointIterations, 41 TrivialSequentialCompositions, 71 ConcurrentSequentialCompositions, 6 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 119 TotalNumberOfCompositions, 22792 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7546, independent: 6914, independent conditional: 0, independent unconditional: 6914, dependent: 632, dependent conditional: 0, dependent unconditional: 632, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1824, independent: 1701, independent conditional: 0, independent unconditional: 1701, dependent: 123, dependent conditional: 0, dependent unconditional: 123, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7546, independent: 5213, independent conditional: 0, independent unconditional: 5213, dependent: 509, dependent conditional: 0, dependent unconditional: 509, unknown: 1824, unknown conditional: 0, unknown unconditional: 1824] , Statistics on independence cache: Total cache size (in pairs): 295, Positive cache size: 227, Positive conditional cache size: 0, Positive unconditional cache size: 227, Negative cache size: 68, Negative conditional cache size: 0, Negative unconditional cache size: 68, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1148]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1153]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1154]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1155]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1156]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1127]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1133]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1133]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1140]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1140]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1163]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 20]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 327 locations, 41 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: 109.7s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 101.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1602 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1602 mSDsluCounter, 418 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 76 mSDsCounter, 894 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7952 IncrementalHoareTripleChecker+Invalid, 8846 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 894 mSolverCounterUnsat, 342 mSDtfsCounter, 7952 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29658occurred in iteration=15, InterpolantAutomatonStates: 108, 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, 0.2s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 535 NumberOfCodeBlocks, 535 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 519 ConstructedInterpolants, 0 QuantifiedInterpolants, 3966 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 07:51:06,308 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...