/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 -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 [2023-08-24 18:15:37,966 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-24 18:15:38,024 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 [2023-08-24 18:15:38,029 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-24 18:15:38,030 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-24 18:15:38,054 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-24 18:15:38,055 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-24 18:15:38,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-24 18:15:38,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-24 18:15:38,058 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-24 18:15:38,058 INFO L153 SettingsManager]: * Use SBE=true [2023-08-24 18:15:38,058 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-24 18:15:38,058 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-24 18:15:38,059 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-24 18:15:38,059 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-24 18:15:38,060 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-24 18:15:38,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-24 18:15:38,060 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-24 18:15:38,060 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-24 18:15:38,060 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-24 18:15:38,060 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-24 18:15:38,061 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-24 18:15:38,061 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-24 18:15:38,061 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-24 18:15:38,062 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-24 18:15:38,062 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-24 18:15:38,062 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-24 18:15:38,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 18:15:38,062 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-24 18:15:38,062 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-24 18:15:38,063 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-24 18:15:38,063 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-24 18:15:38,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-24 18:15:38,063 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-24 18:15:38,063 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-24 18:15:38,064 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-24 18:15:38,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-24 18:15:38,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-24 18:15:38,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-24 18:15:38,312 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-24 18:15:38,312 INFO L274 PluginConnector]: CDTParser initialized [2023-08-24 18:15:38,313 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2023-08-24 18:15:39,253 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-24 18:15:39,443 INFO L384 CDTParser]: Found 1 translation units. [2023-08-24 18:15:39,444 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton_with-uninit-problems.i [2023-08-24 18:15:39,465 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9faf7965f/8c7cacc537e949e5969f73b66486ae15/FLAGa912472b3 [2023-08-24 18:15:39,477 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9faf7965f/8c7cacc537e949e5969f73b66486ae15 [2023-08-24 18:15:39,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-24 18:15:39,479 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-24 18:15:39,481 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-24 18:15:39,481 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-24 18:15:39,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-24 18:15:39,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:15:39" (1/1) ... [2023-08-24 18:15:39,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7994927e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:15:39, skipping insertion in model container [2023-08-24 18:15:39,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.08 06:15:39" (1/1) ... [2023-08-24 18:15:39,515 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-24 18:15:39,663 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-24 18:15:39,847 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 18:15:39,854 INFO L201 MainTranslator]: Completed pre-run [2023-08-24 18:15:39,877 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-24 18:15:39,880 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [283] [2023-08-24 18:15:39,881 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [283] [2023-08-24 18:15:39,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-24 18:15:39,963 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 18:15:39,963 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 18:15:39,963 WARN L669 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-24 18:15:39,967 INFO L206 MainTranslator]: Completed translation [2023-08-24 18:15:39,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:15:39 WrapperNode [2023-08-24 18:15:39,968 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-24 18:15:39,969 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-24 18:15:39,969 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-24 18:15:39,969 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-24 18:15:39,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:15:39" (1/1) ... [2023-08-24 18:15:39,985 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:15:39" (1/1) ... [2023-08-24 18:15:40,001 INFO L138 Inliner]: procedures = 325, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2023-08-24 18:15:40,001 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-24 18:15:40,002 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-24 18:15:40,002 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-24 18:15:40,002 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-24 18:15:40,007 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:15:39" (1/1) ... [2023-08-24 18:15:40,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:15:39" (1/1) ... [2023-08-24 18:15:40,013 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:15:39" (1/1) ... [2023-08-24 18:15:40,013 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:15:39" (1/1) ... [2023-08-24 18:15:40,021 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:15:39" (1/1) ... [2023-08-24 18:15:40,022 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:15:39" (1/1) ... [2023-08-24 18:15:40,023 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:15:39" (1/1) ... [2023-08-24 18:15:40,024 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:15:39" (1/1) ... [2023-08-24 18:15:40,026 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-24 18:15:40,027 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-24 18:15:40,027 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-24 18:15:40,027 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-24 18:15:40,027 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:15:39" (1/1) ... [2023-08-24 18:15:40,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-24 18:15:40,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-24 18:15:40,062 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) [2023-08-24 18:15:40,065 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 [2023-08-24 18:15:40,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-24 18:15:40,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-24 18:15:40,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-24 18:15:40,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-24 18:15:40,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-24 18:15:40,083 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2023-08-24 18:15:40,083 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2023-08-24 18:15:40,083 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-24 18:15:40,083 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-24 18:15:40,083 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-08-24 18:15:40,083 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-08-24 18:15:40,084 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-08-24 18:15:40,085 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-08-24 18:15:40,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-24 18:15:40,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-24 18:15:40,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-24 18:15:40,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-24 18:15:40,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-24 18:15:40,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-24 18:15:40,086 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-24 18:15:40,230 INFO L236 CfgBuilder]: Building ICFG [2023-08-24 18:15:40,232 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-24 18:15:40,474 INFO L277 CfgBuilder]: Performing block encoding [2023-08-24 18:15:40,507 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-24 18:15:40,507 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-24 18:15:40,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:15:40 BoogieIcfgContainer [2023-08-24 18:15:40,512 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-24 18:15:40,514 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-24 18:15:40,514 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-24 18:15:40,516 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-24 18:15:40,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.08 06:15:39" (1/3) ... [2023-08-24 18:15:40,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494d8b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:15:40, skipping insertion in model container [2023-08-24 18:15:40,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.08 06:15:39" (2/3) ... [2023-08-24 18:15:40,517 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494d8b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.08 06:15:40, skipping insertion in model container [2023-08-24 18:15:40,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.08 06:15:40" (3/3) ... [2023-08-24 18:15:40,518 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2023-08-24 18:15:40,528 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-24 18:15:40,528 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-08-24 18:15:40,528 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-24 18:15:40,636 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2023-08-24 18:15:40,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 292 places, 284 transitions, 675 flow [2023-08-24 18:15:40,771 INFO L124 PetriNetUnfolderBase]: 8/197 cut-off events. [2023-08-24 18:15:40,771 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-24 18:15:40,775 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. [2023-08-24 18:15:40,775 INFO L82 GeneralOperation]: Start removeDead. Operand has 292 places, 284 transitions, 675 flow [2023-08-24 18:15:40,780 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 197 places, 184 transitions, 419 flow [2023-08-24 18:15:40,783 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-24 18:15:40,790 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 197 places, 184 transitions, 419 flow [2023-08-24 18:15:40,791 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 197 places, 184 transitions, 419 flow [2023-08-24 18:15:40,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 197 places, 184 transitions, 419 flow [2023-08-24 18:15:40,831 INFO L124 PetriNetUnfolderBase]: 6/184 cut-off events. [2023-08-24 18:15:40,831 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-08-24 18:15:40,832 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. [2023-08-24 18:15:40,834 INFO L119 LiptonReduction]: Number of co-enabled transitions 4608 [2023-08-24 18:15:43,754 INFO L134 LiptonReduction]: Checked pairs total: 22792 [2023-08-24 18:15:43,755 INFO L136 LiptonReduction]: Total number of compositions: 119 [2023-08-24 18:15:43,763 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-24 18:15:43,767 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;@6c9ca1c5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-24 18:15:43,767 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2023-08-24 18:15:43,773 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-24 18:15:43,773 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-08-24 18:15:43,773 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-24 18:15:43,773 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:15:43,774 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-24 18:15:43,774 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 18:15:43,777 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:15:43,777 INFO L85 PathProgramCache]: Analyzing trace with hash 678154008, now seen corresponding path program 1 times [2023-08-24 18:15:43,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:15:43,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845559214] [2023-08-24 18:15:43,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:15:43,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:15:43,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:15:43,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:15:43,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:15:43,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845559214] [2023-08-24 18:15:43,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845559214] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:15:43,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:15:43,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-24 18:15:43,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532737759] [2023-08-24 18:15:43,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:15:43,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-24 18:15:43,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:15:43,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-24 18:15:43,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-24 18:15:43,996 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 405 [2023-08-24 18:15:44,000 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) [2023-08-24 18:15:44,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:15:44,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 405 [2023-08-24 18:15:44,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:15:44,142 INFO L124 PetriNetUnfolderBase]: 317/716 cut-off events. [2023-08-24 18:15:44,142 INFO L125 PetriNetUnfolderBase]: For 101/105 co-relation queries the response was YES. [2023-08-24 18:15:44,144 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. [2023-08-24 18:15:44,148 INFO L140 encePairwiseOnDemand]: 392/405 looper letters, 33 selfloop transitions, 0 changer transitions 0/76 dead transitions. [2023-08-24 18:15:44,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 76 transitions, 269 flow [2023-08-24 18:15:44,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-24 18:15:44,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-24 18:15:44,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 526 transitions. [2023-08-24 18:15:44,158 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6493827160493827 [2023-08-24 18:15:44,158 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 526 transitions. [2023-08-24 18:15:44,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 526 transitions. [2023-08-24 18:15:44,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:15:44,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 526 transitions. [2023-08-24 18:15:44,163 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) [2023-08-24 18:15:44,166 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) [2023-08-24 18:15:44,167 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) [2023-08-24 18:15:44,168 INFO L175 Difference]: Start difference. First operand has 103 places, 89 transitions, 229 flow. Second operand 2 states and 526 transitions. [2023-08-24 18:15:44,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 76 transitions, 269 flow [2023-08-24 18:15:44,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 76 transitions, 235 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-08-24 18:15:44,173 INFO L231 Difference]: Finished difference. Result has 79 places, 76 transitions, 169 flow [2023-08-24 18:15:44,174 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} [2023-08-24 18:15:44,176 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -24 predicate places. [2023-08-24 18:15:44,177 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 76 transitions, 169 flow [2023-08-24 18:15:44,177 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) [2023-08-24 18:15:44,177 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:15:44,177 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:15:44,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-24 18:15:44,178 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)] === [2023-08-24 18:15:44,178 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:15:44,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1610103266, now seen corresponding path program 1 times [2023-08-24 18:15:44,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:15:44,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784269128] [2023-08-24 18:15:44,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:15:44,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:15:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:15:44,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:15:44,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:15:44,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784269128] [2023-08-24 18:15:44,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784269128] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:15:44,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:15:44,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-24 18:15:44,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316603508] [2023-08-24 18:15:44,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:15:44,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-24 18:15:44,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:15:44,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-24 18:15:44,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-24 18:15:44,416 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 405 [2023-08-24 18:15:44,417 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) [2023-08-24 18:15:44,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:15:44,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 405 [2023-08-24 18:15:44,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:15:45,713 INFO L124 PetriNetUnfolderBase]: 7950/11559 cut-off events. [2023-08-24 18:15:45,713 INFO L125 PetriNetUnfolderBase]: For 80/80 co-relation queries the response was YES. [2023-08-24 18:15:45,722 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. [2023-08-24 18:15:45,755 INFO L140 encePairwiseOnDemand]: 395/405 looper letters, 281 selfloop transitions, 21 changer transitions 0/310 dead transitions. [2023-08-24 18:15:45,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 310 transitions, 1302 flow [2023-08-24 18:15:45,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-24 18:15:45,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-24 18:15:45,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1311 transitions. [2023-08-24 18:15:45,758 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5395061728395062 [2023-08-24 18:15:45,758 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1311 transitions. [2023-08-24 18:15:45,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1311 transitions. [2023-08-24 18:15:45,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:15:45,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1311 transitions. [2023-08-24 18:15:45,761 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) [2023-08-24 18:15:45,764 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) [2023-08-24 18:15:45,765 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) [2023-08-24 18:15:45,766 INFO L175 Difference]: Start difference. First operand has 79 places, 76 transitions, 169 flow. Second operand 6 states and 1311 transitions. [2023-08-24 18:15:45,766 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 310 transitions, 1302 flow [2023-08-24 18:15:45,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 310 transitions, 1302 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 18:15:45,770 INFO L231 Difference]: Finished difference. Result has 89 places, 96 transitions, 311 flow [2023-08-24 18:15:45,770 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} [2023-08-24 18:15:45,771 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -14 predicate places. [2023-08-24 18:15:45,771 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 96 transitions, 311 flow [2023-08-24 18:15:45,772 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) [2023-08-24 18:15:45,772 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:15:45,772 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:15:45,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-24 18:15:45,772 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread0Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 18:15:45,772 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:15:45,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1628717193, now seen corresponding path program 1 times [2023-08-24 18:15:45,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:15:45,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574086692] [2023-08-24 18:15:45,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:15:45,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:15:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:15:45,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:15:45,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:15:45,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574086692] [2023-08-24 18:15:45,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574086692] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:15:45,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:15:45,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-24 18:15:45,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138975196] [2023-08-24 18:15:45,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:15:45,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-24 18:15:45,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:15:45,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-24 18:15:45,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-24 18:15:45,990 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 405 [2023-08-24 18:15:45,991 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) [2023-08-24 18:15:45,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:15:45,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 405 [2023-08-24 18:15:45,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:15:46,800 INFO L124 PetriNetUnfolderBase]: 7931/11676 cut-off events. [2023-08-24 18:15:46,800 INFO L125 PetriNetUnfolderBase]: For 7473/7473 co-relation queries the response was YES. [2023-08-24 18:15:46,814 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. [2023-08-24 18:15:46,853 INFO L140 encePairwiseOnDemand]: 396/405 looper letters, 124 selfloop transitions, 24 changer transitions 0/156 dead transitions. [2023-08-24 18:15:46,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 156 transitions, 874 flow [2023-08-24 18:15:46,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-24 18:15:46,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-24 18:15:46,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1127 transitions. [2023-08-24 18:15:46,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4637860082304527 [2023-08-24 18:15:46,856 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1127 transitions. [2023-08-24 18:15:46,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1127 transitions. [2023-08-24 18:15:46,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:15:46,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1127 transitions. [2023-08-24 18:15:46,858 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) [2023-08-24 18:15:46,861 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) [2023-08-24 18:15:46,862 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) [2023-08-24 18:15:46,862 INFO L175 Difference]: Start difference. First operand has 89 places, 96 transitions, 311 flow. Second operand 6 states and 1127 transitions. [2023-08-24 18:15:46,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 156 transitions, 874 flow [2023-08-24 18:15:46,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 156 transitions, 874 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 18:15:46,952 INFO L231 Difference]: Finished difference. Result has 94 places, 115 transitions, 530 flow [2023-08-24 18:15:46,953 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} [2023-08-24 18:15:46,953 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, -9 predicate places. [2023-08-24 18:15:46,953 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 115 transitions, 530 flow [2023-08-24 18:15:46,954 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) [2023-08-24 18:15:46,954 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:15:46,954 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] [2023-08-24 18:15:46,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-24 18:15:46,954 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)] === [2023-08-24 18:15:46,954 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:15:46,955 INFO L85 PathProgramCache]: Analyzing trace with hash -499842014, now seen corresponding path program 1 times [2023-08-24 18:15:46,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:15:46,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126057287] [2023-08-24 18:15:46,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:15:46,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:15:46,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:15:47,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:15:47,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:15:47,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126057287] [2023-08-24 18:15:47,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126057287] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:15:47,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:15:47,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-24 18:15:47,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098352962] [2023-08-24 18:15:47,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:15:47,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-24 18:15:47,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:15:47,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-24 18:15:47,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-08-24 18:15:47,489 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 405 [2023-08-24 18:15:47,490 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) [2023-08-24 18:15:47,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:15:47,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 405 [2023-08-24 18:15:47,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:15:49,812 INFO L124 PetriNetUnfolderBase]: 12989/18978 cut-off events. [2023-08-24 18:15:49,812 INFO L125 PetriNetUnfolderBase]: For 25386/25386 co-relation queries the response was YES. [2023-08-24 18:15:49,841 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. [2023-08-24 18:15:49,902 INFO L140 encePairwiseOnDemand]: 391/405 looper letters, 439 selfloop transitions, 66 changer transitions 0/513 dead transitions. [2023-08-24 18:15:49,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 513 transitions, 2953 flow [2023-08-24 18:15:49,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-08-24 18:15:49,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-08-24 18:15:49,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2255 transitions. [2023-08-24 18:15:49,907 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42830009496676164 [2023-08-24 18:15:49,907 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2255 transitions. [2023-08-24 18:15:49,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2255 transitions. [2023-08-24 18:15:49,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:15:49,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2255 transitions. [2023-08-24 18:15:49,911 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) [2023-08-24 18:15:49,916 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) [2023-08-24 18:15:49,917 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) [2023-08-24 18:15:49,917 INFO L175 Difference]: Start difference. First operand has 94 places, 115 transitions, 530 flow. Second operand 13 states and 2255 transitions. [2023-08-24 18:15:49,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 513 transitions, 2953 flow [2023-08-24 18:15:49,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 513 transitions, 2844 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-24 18:15:49,970 INFO L231 Difference]: Finished difference. Result has 110 places, 167 transitions, 1143 flow [2023-08-24 18:15:49,970 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} [2023-08-24 18:15:49,971 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 7 predicate places. [2023-08-24 18:15:49,971 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 167 transitions, 1143 flow [2023-08-24 18:15:49,972 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) [2023-08-24 18:15:49,972 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:15:49,972 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] [2023-08-24 18:15:49,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-24 18:15:49,972 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)] === [2023-08-24 18:15:49,973 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:15:49,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1946198140, now seen corresponding path program 2 times [2023-08-24 18:15:49,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:15:49,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338962303] [2023-08-24 18:15:49,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:15:49,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:15:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:15:50,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:15:50,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:15:50,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338962303] [2023-08-24 18:15:50,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338962303] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:15:50,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:15:50,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-08-24 18:15:50,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487683452] [2023-08-24 18:15:50,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:15:50,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-24 18:15:50,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:15:50,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-24 18:15:50,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-08-24 18:15:50,432 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 405 [2023-08-24 18:15:50,433 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) [2023-08-24 18:15:50,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:15:50,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 405 [2023-08-24 18:15:50,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:15:53,852 INFO L124 PetriNetUnfolderBase]: 17759/26632 cut-off events. [2023-08-24 18:15:53,852 INFO L125 PetriNetUnfolderBase]: For 88353/88357 co-relation queries the response was YES. [2023-08-24 18:15:53,901 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. [2023-08-24 18:15:53,991 INFO L140 encePairwiseOnDemand]: 391/405 looper letters, 438 selfloop transitions, 99 changer transitions 0/545 dead transitions. [2023-08-24 18:15:53,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 545 transitions, 3557 flow [2023-08-24 18:15:53,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-24 18:15:53,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-24 18:15:53,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2119 transitions. [2023-08-24 18:15:53,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4360082304526749 [2023-08-24 18:15:53,995 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2119 transitions. [2023-08-24 18:15:53,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2119 transitions. [2023-08-24 18:15:53,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:15:53,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2119 transitions. [2023-08-24 18:15:53,999 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) [2023-08-24 18:15:54,003 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) [2023-08-24 18:15:54,004 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) [2023-08-24 18:15:54,005 INFO L175 Difference]: Start difference. First operand has 110 places, 167 transitions, 1143 flow. Second operand 12 states and 2119 transitions. [2023-08-24 18:15:54,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 545 transitions, 3557 flow [2023-08-24 18:15:54,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 545 transitions, 3555 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-08-24 18:15:54,473 INFO L231 Difference]: Finished difference. Result has 131 places, 206 transitions, 1925 flow [2023-08-24 18:15:54,473 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} [2023-08-24 18:15:54,474 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 28 predicate places. [2023-08-24 18:15:54,474 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 206 transitions, 1925 flow [2023-08-24 18:15:54,475 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) [2023-08-24 18:15:54,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:15:54,475 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] [2023-08-24 18:15:54,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-24 18:15:54,475 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)] === [2023-08-24 18:15:54,475 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:15:54,475 INFO L85 PathProgramCache]: Analyzing trace with hash -238052988, now seen corresponding path program 3 times [2023-08-24 18:15:54,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:15:54,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217776051] [2023-08-24 18:15:54,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:15:54,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:15:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:15:54,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:15:54,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:15:54,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217776051] [2023-08-24 18:15:54,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217776051] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:15:54,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:15:54,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-08-24 18:15:54,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838429523] [2023-08-24 18:15:54,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:15:54,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-24 18:15:54,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:15:54,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-24 18:15:54,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-24 18:15:54,746 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 405 [2023-08-24 18:15:54,747 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) [2023-08-24 18:15:54,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:15:54,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 405 [2023-08-24 18:15:54,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:15:57,394 INFO L124 PetriNetUnfolderBase]: 16545/24796 cut-off events. [2023-08-24 18:15:57,394 INFO L125 PetriNetUnfolderBase]: For 113812/113814 co-relation queries the response was YES. [2023-08-24 18:15:57,461 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. [2023-08-24 18:15:57,647 INFO L140 encePairwiseOnDemand]: 399/405 looper letters, 404 selfloop transitions, 18 changer transitions 0/430 dead transitions. [2023-08-24 18:15:57,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 430 transitions, 3424 flow [2023-08-24 18:15:57,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-24 18:15:57,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-24 18:15:57,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1390 transitions. [2023-08-24 18:15:57,651 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49029982363315694 [2023-08-24 18:15:57,652 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1390 transitions. [2023-08-24 18:15:57,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1390 transitions. [2023-08-24 18:15:57,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:15:57,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1390 transitions. [2023-08-24 18:15:57,654 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) [2023-08-24 18:15:57,657 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) [2023-08-24 18:15:57,658 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) [2023-08-24 18:15:57,658 INFO L175 Difference]: Start difference. First operand has 131 places, 206 transitions, 1925 flow. Second operand 7 states and 1390 transitions. [2023-08-24 18:15:57,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 430 transitions, 3424 flow [2023-08-24 18:15:58,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 430 transitions, 3335 flow, removed 2 selfloop flow, removed 6 redundant places. [2023-08-24 18:15:58,119 INFO L231 Difference]: Finished difference. Result has 130 places, 205 transitions, 1858 flow [2023-08-24 18:15:58,119 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} [2023-08-24 18:15:58,120 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 27 predicate places. [2023-08-24 18:15:58,120 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 205 transitions, 1858 flow [2023-08-24 18:15:58,121 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) [2023-08-24 18:15:58,121 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:15:58,121 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] [2023-08-24 18:15:58,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-24 18:15:58,121 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 18:15:58,121 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:15:58,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1424042626, now seen corresponding path program 1 times [2023-08-24 18:15:58,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:15:58,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922976965] [2023-08-24 18:15:58,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:15:58,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:15:58,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:15:58,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:15:58,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:15:58,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922976965] [2023-08-24 18:15:58,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922976965] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:15:58,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:15:58,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-24 18:15:58,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913934199] [2023-08-24 18:15:58,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:15:58,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-24 18:15:58,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:15:58,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-24 18:15:58,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-24 18:15:58,310 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 405 [2023-08-24 18:15:58,310 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) [2023-08-24 18:15:58,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:15:58,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 405 [2023-08-24 18:15:58,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:16:01,953 INFO L124 PetriNetUnfolderBase]: 27103/41286 cut-off events. [2023-08-24 18:16:01,953 INFO L125 PetriNetUnfolderBase]: For 215641/215641 co-relation queries the response was YES. [2023-08-24 18:16:02,062 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. [2023-08-24 18:16:02,206 INFO L140 encePairwiseOnDemand]: 394/405 looper letters, 310 selfloop transitions, 358 changer transitions 0/676 dead transitions. [2023-08-24 18:16:02,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 676 transitions, 8922 flow [2023-08-24 18:16:02,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-24 18:16:02,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-24 18:16:02,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1152 transitions. [2023-08-24 18:16:02,210 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4740740740740741 [2023-08-24 18:16:02,210 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1152 transitions. [2023-08-24 18:16:02,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1152 transitions. [2023-08-24 18:16:02,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:16:02,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1152 transitions. [2023-08-24 18:16:02,212 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) [2023-08-24 18:16:02,215 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) [2023-08-24 18:16:02,215 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) [2023-08-24 18:16:02,215 INFO L175 Difference]: Start difference. First operand has 130 places, 205 transitions, 1858 flow. Second operand 6 states and 1152 transitions. [2023-08-24 18:16:02,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 676 transitions, 8922 flow [2023-08-24 18:16:02,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 676 transitions, 8811 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-24 18:16:02,530 INFO L231 Difference]: Finished difference. Result has 135 places, 562 transitions, 8219 flow [2023-08-24 18:16:02,530 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} [2023-08-24 18:16:02,531 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 32 predicate places. [2023-08-24 18:16:02,531 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 562 transitions, 8219 flow [2023-08-24 18:16:02,531 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) [2023-08-24 18:16:02,531 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:16:02,531 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] [2023-08-24 18:16:02,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-24 18:16:02,532 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 18:16:02,532 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:16:02,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1384939924, now seen corresponding path program 1 times [2023-08-24 18:16:02,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:16:02,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36647884] [2023-08-24 18:16:02,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:16:02,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:16:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:16:02,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:16:02,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:16:02,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36647884] [2023-08-24 18:16:02,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36647884] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:16:02,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:16:02,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-24 18:16:02,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452329454] [2023-08-24 18:16:02,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:16:02,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-24 18:16:02,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:16:02,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-24 18:16:02,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-24 18:16:02,764 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 405 [2023-08-24 18:16:02,765 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) [2023-08-24 18:16:02,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:16:02,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 405 [2023-08-24 18:16:02,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:16:07,642 INFO L124 PetriNetUnfolderBase]: 26021/39855 cut-off events. [2023-08-24 18:16:07,642 INFO L125 PetriNetUnfolderBase]: For 274322/274322 co-relation queries the response was YES. [2023-08-24 18:16:07,756 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. [2023-08-24 18:16:07,881 INFO L140 encePairwiseOnDemand]: 397/405 looper letters, 754 selfloop transitions, 51 changer transitions 0/813 dead transitions. [2023-08-24 18:16:07,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 813 transitions, 13036 flow [2023-08-24 18:16:07,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-24 18:16:07,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-24 18:16:07,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1387 transitions. [2023-08-24 18:16:07,884 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4280864197530864 [2023-08-24 18:16:07,884 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1387 transitions. [2023-08-24 18:16:07,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1387 transitions. [2023-08-24 18:16:07,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:16:07,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1387 transitions. [2023-08-24 18:16:07,886 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) [2023-08-24 18:16:07,889 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) [2023-08-24 18:16:07,890 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) [2023-08-24 18:16:07,890 INFO L175 Difference]: Start difference. First operand has 135 places, 562 transitions, 8219 flow. Second operand 8 states and 1387 transitions. [2023-08-24 18:16:07,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 813 transitions, 13036 flow [2023-08-24 18:16:08,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 813 transitions, 13036 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-24 18:16:08,235 INFO L231 Difference]: Finished difference. Result has 141 places, 561 transitions, 8317 flow [2023-08-24 18:16:08,235 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} [2023-08-24 18:16:08,236 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 38 predicate places. [2023-08-24 18:16:08,236 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 561 transitions, 8317 flow [2023-08-24 18:16:08,236 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) [2023-08-24 18:16:08,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:16:08,237 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] [2023-08-24 18:16:08,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-24 18:16:08,237 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 18:16:08,237 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:16:08,237 INFO L85 PathProgramCache]: Analyzing trace with hash 579960516, now seen corresponding path program 1 times [2023-08-24 18:16:08,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:16:08,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607049900] [2023-08-24 18:16:08,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:16:08,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:16:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:16:08,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:16:08,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:16:08,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607049900] [2023-08-24 18:16:08,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607049900] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:16:08,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:16:08,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-24 18:16:08,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049252277] [2023-08-24 18:16:08,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:16:08,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-24 18:16:08,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:16:08,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-24 18:16:08,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-24 18:16:08,449 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 405 [2023-08-24 18:16:08,458 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) [2023-08-24 18:16:08,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:16:08,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 405 [2023-08-24 18:16:08,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:16:13,880 INFO L124 PetriNetUnfolderBase]: 30161/46311 cut-off events. [2023-08-24 18:16:13,880 INFO L125 PetriNetUnfolderBase]: For 324636/324636 co-relation queries the response was YES. [2023-08-24 18:16:14,038 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. [2023-08-24 18:16:14,185 INFO L140 encePairwiseOnDemand]: 395/405 looper letters, 618 selfloop transitions, 255 changer transitions 0/880 dead transitions. [2023-08-24 18:16:14,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 880 transitions, 14465 flow [2023-08-24 18:16:14,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-24 18:16:14,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-24 18:16:14,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1140 transitions. [2023-08-24 18:16:14,188 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4691358024691358 [2023-08-24 18:16:14,188 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1140 transitions. [2023-08-24 18:16:14,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1140 transitions. [2023-08-24 18:16:14,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:16:14,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1140 transitions. [2023-08-24 18:16:14,191 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) [2023-08-24 18:16:14,193 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) [2023-08-24 18:16:14,193 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) [2023-08-24 18:16:14,193 INFO L175 Difference]: Start difference. First operand has 141 places, 561 transitions, 8317 flow. Second operand 6 states and 1140 transitions. [2023-08-24 18:16:14,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 880 transitions, 14465 flow [2023-08-24 18:16:14,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 880 transitions, 14329 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-08-24 18:16:14,723 INFO L231 Difference]: Finished difference. Result has 144 places, 798 transitions, 13113 flow [2023-08-24 18:16:14,723 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} [2023-08-24 18:16:14,724 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 41 predicate places. [2023-08-24 18:16:14,724 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 798 transitions, 13113 flow [2023-08-24 18:16:14,724 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) [2023-08-24 18:16:14,724 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:16:14,724 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] [2023-08-24 18:16:14,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-24 18:16:14,724 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 18:16:14,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:16:14,725 INFO L85 PathProgramCache]: Analyzing trace with hash -798022611, now seen corresponding path program 1 times [2023-08-24 18:16:14,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:16:14,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34653691] [2023-08-24 18:16:14,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:16:14,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:16:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:16:14,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:16:14,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:16:14,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34653691] [2023-08-24 18:16:14,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34653691] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:16:14,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:16:14,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-24 18:16:14,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067066083] [2023-08-24 18:16:14,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:16:14,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-24 18:16:14,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:16:14,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-24 18:16:14,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-08-24 18:16:14,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 405 [2023-08-24 18:16:14,994 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) [2023-08-24 18:16:14,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:16:14,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 405 [2023-08-24 18:16:14,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:16:21,158 INFO L124 PetriNetUnfolderBase]: 29774/45839 cut-off events. [2023-08-24 18:16:21,158 INFO L125 PetriNetUnfolderBase]: For 383011/383011 co-relation queries the response was YES. [2023-08-24 18:16:21,342 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. [2023-08-24 18:16:21,661 INFO L140 encePairwiseOnDemand]: 397/405 looper letters, 914 selfloop transitions, 68 changer transitions 0/989 dead transitions. [2023-08-24 18:16:21,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 989 transitions, 17704 flow [2023-08-24 18:16:21,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-24 18:16:21,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-24 18:16:21,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1383 transitions. [2023-08-24 18:16:21,667 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42685185185185187 [2023-08-24 18:16:21,667 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1383 transitions. [2023-08-24 18:16:21,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1383 transitions. [2023-08-24 18:16:21,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:16:21,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1383 transitions. [2023-08-24 18:16:21,670 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) [2023-08-24 18:16:21,673 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) [2023-08-24 18:16:21,674 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) [2023-08-24 18:16:21,674 INFO L175 Difference]: Start difference. First operand has 144 places, 798 transitions, 13113 flow. Second operand 8 states and 1383 transitions. [2023-08-24 18:16:21,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 989 transitions, 17704 flow [2023-08-24 18:16:22,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 989 transitions, 17272 flow, removed 216 selfloop flow, removed 0 redundant places. [2023-08-24 18:16:22,357 INFO L231 Difference]: Finished difference. Result has 150 places, 797 transitions, 12813 flow [2023-08-24 18:16:22,357 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} [2023-08-24 18:16:22,358 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 47 predicate places. [2023-08-24 18:16:22,358 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 797 transitions, 12813 flow [2023-08-24 18:16:22,358 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) [2023-08-24 18:16:22,358 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:16:22,358 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] [2023-08-24 18:16:22,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-24 18:16:22,358 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 18:16:22,359 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:16:22,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1599923243, now seen corresponding path program 1 times [2023-08-24 18:16:22,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:16:22,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244896531] [2023-08-24 18:16:22,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:16:22,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:16:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:16:22,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:16:22,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:16:22,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244896531] [2023-08-24 18:16:22,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244896531] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:16:22,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:16:22,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-24 18:16:22,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057804847] [2023-08-24 18:16:22,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:16:22,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-24 18:16:22,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:16:22,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-24 18:16:22,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-24 18:16:22,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 405 [2023-08-24 18:16:22,601 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) [2023-08-24 18:16:22,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:16:22,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 405 [2023-08-24 18:16:22,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:16:28,511 INFO L124 PetriNetUnfolderBase]: 29964/46781 cut-off events. [2023-08-24 18:16:28,511 INFO L125 PetriNetUnfolderBase]: For 358764/358764 co-relation queries the response was YES. [2023-08-24 18:16:28,794 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. [2023-08-24 18:16:29,000 INFO L140 encePairwiseOnDemand]: 396/405 looper letters, 829 selfloop transitions, 272 changer transitions 0/1108 dead transitions. [2023-08-24 18:16:29,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 1108 transitions, 19793 flow [2023-08-24 18:16:29,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-24 18:16:29,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-24 18:16:29,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1127 transitions. [2023-08-24 18:16:29,003 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4637860082304527 [2023-08-24 18:16:29,003 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1127 transitions. [2023-08-24 18:16:29,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1127 transitions. [2023-08-24 18:16:29,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:16:29,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1127 transitions. [2023-08-24 18:16:29,005 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) [2023-08-24 18:16:29,007 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) [2023-08-24 18:16:29,007 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) [2023-08-24 18:16:29,007 INFO L175 Difference]: Start difference. First operand has 150 places, 797 transitions, 12813 flow. Second operand 6 states and 1127 transitions. [2023-08-24 18:16:29,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 1108 transitions, 19793 flow [2023-08-24 18:16:29,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 1108 transitions, 19623 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-08-24 18:16:29,888 INFO L231 Difference]: Finished difference. Result has 153 places, 1034 transitions, 18037 flow [2023-08-24 18:16:29,888 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} [2023-08-24 18:16:29,888 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 50 predicate places. [2023-08-24 18:16:29,889 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 1034 transitions, 18037 flow [2023-08-24 18:16:29,889 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) [2023-08-24 18:16:29,889 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:16:29,889 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] [2023-08-24 18:16:29,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-24 18:16:29,889 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 18:16:29,889 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:16:29,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1765223706, now seen corresponding path program 1 times [2023-08-24 18:16:29,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:16:29,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404900011] [2023-08-24 18:16:29,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:16:29,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:16:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:16:30,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:16:30,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:16:30,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404900011] [2023-08-24 18:16:30,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404900011] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:16:30,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:16:30,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-24 18:16:30,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655029042] [2023-08-24 18:16:30,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:16:30,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-24 18:16:30,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:16:30,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-24 18:16:30,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-08-24 18:16:30,260 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 405 [2023-08-24 18:16:30,261 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) [2023-08-24 18:16:30,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:16:30,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 405 [2023-08-24 18:16:30,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:16:38,806 INFO L124 PetriNetUnfolderBase]: 29852/46612 cut-off events. [2023-08-24 18:16:38,806 INFO L125 PetriNetUnfolderBase]: For 394258/394258 co-relation queries the response was YES. [2023-08-24 18:16:38,992 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. [2023-08-24 18:16:39,159 INFO L140 encePairwiseOnDemand]: 397/405 looper letters, 1097 selfloop transitions, 85 changer transitions 0/1189 dead transitions. [2023-08-24 18:16:39,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 1189 transitions, 22544 flow [2023-08-24 18:16:39,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-24 18:16:39,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-24 18:16:39,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1378 transitions. [2023-08-24 18:16:39,162 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42530864197530865 [2023-08-24 18:16:39,162 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1378 transitions. [2023-08-24 18:16:39,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1378 transitions. [2023-08-24 18:16:39,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:16:39,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1378 transitions. [2023-08-24 18:16:39,164 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) [2023-08-24 18:16:39,167 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) [2023-08-24 18:16:39,167 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) [2023-08-24 18:16:39,167 INFO L175 Difference]: Start difference. First operand has 153 places, 1034 transitions, 18037 flow. Second operand 8 states and 1378 transitions. [2023-08-24 18:16:39,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 1189 transitions, 22544 flow [2023-08-24 18:16:39,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 1189 transitions, 22400 flow, removed 72 selfloop flow, removed 0 redundant places. [2023-08-24 18:16:39,999 INFO L231 Difference]: Finished difference. Result has 159 places, 1033 transitions, 18059 flow [2023-08-24 18:16:39,999 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} [2023-08-24 18:16:40,000 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 56 predicate places. [2023-08-24 18:16:40,001 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 1033 transitions, 18059 flow [2023-08-24 18:16:40,001 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) [2023-08-24 18:16:40,001 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:16:40,001 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] [2023-08-24 18:16:40,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-24 18:16:40,002 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 18:16:40,002 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:16:40,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1881566130, now seen corresponding path program 1 times [2023-08-24 18:16:40,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:16:40,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214168581] [2023-08-24 18:16:40,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:16:40,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:16:40,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:16:40,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:16:40,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:16:40,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214168581] [2023-08-24 18:16:40,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214168581] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:16:40,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:16:40,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-24 18:16:40,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155915184] [2023-08-24 18:16:40,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:16:40,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-24 18:16:40,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:16:40,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-24 18:16:40,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-24 18:16:40,237 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 405 [2023-08-24 18:16:40,238 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) [2023-08-24 18:16:40,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:16:40,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 405 [2023-08-24 18:16:40,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:16:47,514 INFO L124 PetriNetUnfolderBase]: 29443/46231 cut-off events. [2023-08-24 18:16:47,514 INFO L125 PetriNetUnfolderBase]: For 384078/384078 co-relation queries the response was YES. [2023-08-24 18:16:47,723 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. [2023-08-24 18:16:47,878 INFO L140 encePairwiseOnDemand]: 397/405 looper letters, 1040 selfloop transitions, 217 changer transitions 0/1264 dead transitions. [2023-08-24 18:16:47,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 1264 transitions, 24471 flow [2023-08-24 18:16:47,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-24 18:16:47,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-24 18:16:47,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1114 transitions. [2023-08-24 18:16:47,880 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45843621399176954 [2023-08-24 18:16:47,880 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1114 transitions. [2023-08-24 18:16:47,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1114 transitions. [2023-08-24 18:16:47,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:16:47,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1114 transitions. [2023-08-24 18:16:47,882 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) [2023-08-24 18:16:47,883 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) [2023-08-24 18:16:47,884 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) [2023-08-24 18:16:47,884 INFO L175 Difference]: Start difference. First operand has 159 places, 1033 transitions, 18059 flow. Second operand 6 states and 1114 transitions. [2023-08-24 18:16:47,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 1264 transitions, 24471 flow [2023-08-24 18:16:48,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 1264 transitions, 24267 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-08-24 18:16:48,799 INFO L231 Difference]: Finished difference. Result has 162 places, 1198 transitions, 22131 flow [2023-08-24 18:16:48,800 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} [2023-08-24 18:16:48,800 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 59 predicate places. [2023-08-24 18:16:48,801 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 1198 transitions, 22131 flow [2023-08-24 18:16:48,801 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) [2023-08-24 18:16:48,801 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:16:48,801 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] [2023-08-24 18:16:48,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-24 18:16:48,801 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 18:16:48,801 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:16:48,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1876233556, now seen corresponding path program 1 times [2023-08-24 18:16:48,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:16:48,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201151638] [2023-08-24 18:16:48,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:16:48,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:16:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:16:49,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:16:49,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:16:49,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201151638] [2023-08-24 18:16:49,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201151638] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:16:49,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:16:49,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-08-24 18:16:49,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943685958] [2023-08-24 18:16:49,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:16:49,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-08-24 18:16:49,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:16:49,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-08-24 18:16:49,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-08-24 18:16:49,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 405 [2023-08-24 18:16:49,124 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) [2023-08-24 18:16:49,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:16:49,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 405 [2023-08-24 18:16:49,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:16:57,245 INFO L124 PetriNetUnfolderBase]: 29425/46177 cut-off events. [2023-08-24 18:16:57,246 INFO L125 PetriNetUnfolderBase]: For 400786/400788 co-relation queries the response was YES. [2023-08-24 18:16:57,491 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. [2023-08-24 18:16:57,647 INFO L140 encePairwiseOnDemand]: 397/405 looper letters, 1172 selfloop transitions, 102 changer transitions 0/1281 dead transitions. [2023-08-24 18:16:57,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 1281 transitions, 25422 flow [2023-08-24 18:16:57,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-08-24 18:16:57,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-08-24 18:16:57,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1277 transitions. [2023-08-24 18:16:57,650 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3941358024691358 [2023-08-24 18:16:57,650 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1277 transitions. [2023-08-24 18:16:57,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1277 transitions. [2023-08-24 18:16:57,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:16:57,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1277 transitions. [2023-08-24 18:16:57,652 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) [2023-08-24 18:16:57,654 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) [2023-08-24 18:16:57,654 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) [2023-08-24 18:16:57,654 INFO L175 Difference]: Start difference. First operand has 162 places, 1198 transitions, 22131 flow. Second operand 8 states and 1277 transitions. [2023-08-24 18:16:57,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 1281 transitions, 25422 flow [2023-08-24 18:16:58,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 1281 transitions, 25350 flow, removed 36 selfloop flow, removed 0 redundant places. [2023-08-24 18:16:58,784 INFO L231 Difference]: Finished difference. Result has 168 places, 1197 transitions, 22259 flow [2023-08-24 18:16:58,785 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} [2023-08-24 18:16:58,785 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 65 predicate places. [2023-08-24 18:16:58,785 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 1197 transitions, 22259 flow [2023-08-24 18:16:58,786 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) [2023-08-24 18:16:58,786 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:16:58,786 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] [2023-08-24 18:16:58,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-08-24 18:16:58,786 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 18:16:58,786 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:16:58,786 INFO L85 PathProgramCache]: Analyzing trace with hash 886461752, now seen corresponding path program 1 times [2023-08-24 18:16:58,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:16:58,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344471203] [2023-08-24 18:16:58,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:16:58,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:16:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:16:58,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:16:58,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:16:58,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344471203] [2023-08-24 18:16:58,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344471203] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:16:58,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:16:58,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:16:58,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683390911] [2023-08-24 18:16:58,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:16:58,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:16:58,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:16:58,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:16:58,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:16:58,880 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 405 [2023-08-24 18:16:58,880 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) [2023-08-24 18:16:58,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:16:58,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 405 [2023-08-24 18:16:58,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:17:06,906 INFO L124 PetriNetUnfolderBase]: 32013/52603 cut-off events. [2023-08-24 18:17:06,906 INFO L125 PetriNetUnfolderBase]: For 708662/711001 co-relation queries the response was YES. [2023-08-24 18:17:07,251 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. [2023-08-24 18:17:07,392 INFO L140 encePairwiseOnDemand]: 397/405 looper letters, 682 selfloop transitions, 683 changer transitions 510/1952 dead transitions. [2023-08-24 18:17:07,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 1952 transitions, 41365 flow [2023-08-24 18:17:07,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:17:07,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:17:07,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 686 transitions. [2023-08-24 18:17:07,394 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5646090534979424 [2023-08-24 18:17:07,394 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 686 transitions. [2023-08-24 18:17:07,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 686 transitions. [2023-08-24 18:17:07,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:17:07,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 686 transitions. [2023-08-24 18:17:07,395 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) [2023-08-24 18:17:07,396 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) [2023-08-24 18:17:07,396 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) [2023-08-24 18:17:07,396 INFO L175 Difference]: Start difference. First operand has 168 places, 1197 transitions, 22259 flow. Second operand 3 states and 686 transitions. [2023-08-24 18:17:07,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 1952 transitions, 41365 flow [2023-08-24 18:17:08,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 1952 transitions, 41059 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-08-24 18:17:08,634 INFO L231 Difference]: Finished difference. Result has 165 places, 1417 transitions, 29658 flow [2023-08-24 18:17:08,634 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} [2023-08-24 18:17:08,634 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 62 predicate places. [2023-08-24 18:17:08,635 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 1417 transitions, 29658 flow [2023-08-24 18:17:08,635 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) [2023-08-24 18:17:08,635 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-24 18:17:08,635 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] [2023-08-24 18:17:08,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-08-24 18:17:08,635 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONASSERT === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-08-24 18:17:08,635 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-24 18:17:08,635 INFO L85 PathProgramCache]: Analyzing trace with hash -113690685, now seen corresponding path program 1 times [2023-08-24 18:17:08,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-24 18:17:08,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297153995] [2023-08-24 18:17:08,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-24 18:17:08,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-24 18:17:08,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-24 18:17:08,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-24 18:17:08,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-24 18:17:08,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297153995] [2023-08-24 18:17:08,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297153995] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-24 18:17:08,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-24 18:17:08,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-24 18:17:08,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859729478] [2023-08-24 18:17:08,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-24 18:17:08,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-24 18:17:08,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-24 18:17:08,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-24 18:17:08,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-24 18:17:08,836 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 405 [2023-08-24 18:17:08,836 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) [2023-08-24 18:17:08,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-24 18:17:08,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 405 [2023-08-24 18:17:08,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-24 18:17:18,022 INFO L124 PetriNetUnfolderBase]: 33741/55721 cut-off events. [2023-08-24 18:17:18,023 INFO L125 PetriNetUnfolderBase]: For 1025313/1027723 co-relation queries the response was YES. [2023-08-24 18:17:18,407 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. [2023-08-24 18:17:18,452 INFO L140 encePairwiseOnDemand]: 398/405 looper letters, 0 selfloop transitions, 0 changer transitions 1740/1740 dead transitions. [2023-08-24 18:17:18,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 1740 transitions, 40224 flow [2023-08-24 18:17:18,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-24 18:17:18,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-24 18:17:18,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2023-08-24 18:17:18,453 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5613168724279836 [2023-08-24 18:17:18,453 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 682 transitions. [2023-08-24 18:17:18,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 682 transitions. [2023-08-24 18:17:18,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-24 18:17:18,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 682 transitions. [2023-08-24 18:17:18,454 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) [2023-08-24 18:17:18,455 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) [2023-08-24 18:17:18,455 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) [2023-08-24 18:17:18,455 INFO L175 Difference]: Start difference. First operand has 165 places, 1417 transitions, 29658 flow. Second operand 3 states and 682 transitions. [2023-08-24 18:17:18,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 1740 transitions, 40224 flow [2023-08-24 18:17:19,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 1740 transitions, 37988 flow, removed 180 selfloop flow, removed 2 redundant places. [2023-08-24 18:17:19,867 INFO L231 Difference]: Finished difference. Result has 164 places, 0 transitions, 0 flow [2023-08-24 18:17:19,868 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} [2023-08-24 18:17:19,868 INFO L281 CegarLoopForPetriNet]: 103 programPoint places, 61 predicate places. [2023-08-24 18:17:19,868 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 0 transitions, 0 flow [2023-08-24 18:17:19,868 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) [2023-08-24 18:17:19,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONDATA_RACE (40 of 41 remaining) [2023-08-24 18:17:19,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONDATA_RACE (39 of 41 remaining) [2023-08-24 18:17:19,871 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONDATA_RACE (38 of 41 remaining) [2023-08-24 18:17:19,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONDATA_RACE (37 of 41 remaining) [2023-08-24 18:17:19,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONDATA_RACE (36 of 41 remaining) [2023-08-24 18:17:19,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 41 remaining) [2023-08-24 18:17:19,873 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 41 remaining) [2023-08-24 18:17:19,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 41 remaining) [2023-08-24 18:17:19,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 41 remaining) [2023-08-24 18:17:19,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 41 remaining) [2023-08-24 18:17:19,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (30 of 41 remaining) [2023-08-24 18:17:19,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (29 of 41 remaining) [2023-08-24 18:17:19,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (28 of 41 remaining) [2023-08-24 18:17:19,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (27 of 41 remaining) [2023-08-24 18:17:19,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (26 of 41 remaining) [2023-08-24 18:17:19,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 41 remaining) [2023-08-24 18:17:19,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 41 remaining) [2023-08-24 18:17:19,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 41 remaining) [2023-08-24 18:17:19,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 41 remaining) [2023-08-24 18:17:19,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 41 remaining) [2023-08-24 18:17:19,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONASSERT (20 of 41 remaining) [2023-08-24 18:17:19,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 41 remaining) [2023-08-24 18:17:19,874 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONDATA_RACE (18 of 41 remaining) [2023-08-24 18:17:19,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONDATA_RACE (17 of 41 remaining) [2023-08-24 18:17:19,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONDATA_RACE (16 of 41 remaining) [2023-08-24 18:17:19,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONDATA_RACE (15 of 41 remaining) [2023-08-24 18:17:19,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONDATA_RACE (14 of 41 remaining) [2023-08-24 18:17:19,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 41 remaining) [2023-08-24 18:17:19,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 41 remaining) [2023-08-24 18:17:19,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 41 remaining) [2023-08-24 18:17:19,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 41 remaining) [2023-08-24 18:17:19,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork5Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 41 remaining) [2023-08-24 18:17:19,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (8 of 41 remaining) [2023-08-24 18:17:19,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (7 of 41 remaining) [2023-08-24 18:17:19,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 41 remaining) [2023-08-24 18:17:19,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (5 of 41 remaining) [2023-08-24 18:17:19,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (4 of 41 remaining) [2023-08-24 18:17:19,875 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 41 remaining) [2023-08-24 18:17:19,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 41 remaining) [2023-08-24 18:17:19,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (1 of 41 remaining) [2023-08-24 18:17:19,876 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (0 of 41 remaining) [2023-08-24 18:17:19,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-08-24 18:17:19,876 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-24 18:17:19,880 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-24 18:17:19,880 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-24 18:17:19,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.08 06:17:19 BasicIcfg [2023-08-24 18:17:19,882 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-24 18:17:19,882 INFO L158 Benchmark]: Toolchain (without parser) took 100403.29ms. Allocated memory was 379.6MB in the beginning and 12.4GB in the end (delta: 12.0GB). Free memory was 336.5MB in the beginning and 7.1GB in the end (delta: -6.8GB). Peak memory consumption was 5.9GB. Max. memory is 16.0GB. [2023-08-24 18:17:19,883 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 379.6MB. Free memory was 357.1MB in the beginning and 357.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-24 18:17:19,883 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.17ms. Allocated memory is still 379.6MB. Free memory was 336.2MB in the beginning and 347.6MB in the end (delta: -11.4MB). Peak memory consumption was 32.3MB. Max. memory is 16.0GB. [2023-08-24 18:17:19,883 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.61ms. Allocated memory is still 379.6MB. Free memory was 347.6MB in the beginning and 344.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 18:17:19,883 INFO L158 Benchmark]: Boogie Preprocessor took 24.10ms. Allocated memory is still 379.6MB. Free memory was 344.9MB in the beginning and 342.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-24 18:17:19,883 INFO L158 Benchmark]: RCFGBuilder took 485.50ms. Allocated memory is still 379.6MB. Free memory was 342.1MB in the beginning and 318.9MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-24 18:17:19,883 INFO L158 Benchmark]: TraceAbstraction took 99368.21ms. Allocated memory was 379.6MB in the beginning and 12.4GB in the end (delta: 12.0GB). Free memory was 317.6MB in the beginning and 7.1GB in the end (delta: -6.8GB). Peak memory consumption was 5.9GB. Max. memory is 16.0GB. [2023-08-24 18:17:19,884 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 379.6MB. Free memory was 357.1MB in the beginning and 357.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 487.17ms. Allocated memory is still 379.6MB. Free memory was 336.2MB in the beginning and 347.6MB in the end (delta: -11.4MB). Peak memory consumption was 32.3MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 32.61ms. Allocated memory is still 379.6MB. Free memory was 347.6MB in the beginning and 344.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 24.10ms. Allocated memory is still 379.6MB. Free memory was 344.9MB in the beginning and 342.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 485.50ms. Allocated memory is still 379.6MB. Free memory was 342.1MB in the beginning and 318.9MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 99368.21ms. Allocated memory was 379.6MB in the beginning and 12.4GB in the end (delta: 12.0GB). Free memory was 317.6MB in the beginning and 7.1GB in the end (delta: -6.8GB). Peak memory consumption was 5.9GB. 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: 3.0s, 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: 99.2s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 91.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1602 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1602 mSDsluCounter, 418 SdHoareTripleChecker+Invalid, 4.4s 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, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.9s 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, 3.8s 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! [2023-08-24 18:17:19,904 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...