/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-atomic/peterson.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 07:55:02,768 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 07:55:02,850 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 07:55:02,854 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 07:55:02,855 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 07:55:02,885 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 07:55:02,886 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 07:55:02,886 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 07:55:02,887 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 07:55:02,890 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 07:55:02,891 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 07:55:02,891 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 07:55:02,891 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 07:55:02,893 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 07:55:02,893 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 07:55:02,893 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 07:55:02,893 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 07:55:02,893 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 07:55:02,894 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 07:55:02,894 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 07:55:02,894 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 07:55:02,895 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 07:55:02,895 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 07:55:02,895 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 07:55:02,896 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 07:55:02,896 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 07:55:02,896 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 07:55:02,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 07:55:02,897 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 07:55:02,897 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 07:55:02,898 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 07:55:02,898 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 07:55:02,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 07:55:02,898 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 07:55:02,899 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 07:55:02,899 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 07:55:03,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 07:55:03,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 07:55:03,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 07:55:03,249 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 07:55:03,251 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 07:55:03,252 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/peterson.i [2023-08-25 07:55:04,554 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 07:55:04,837 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 07:55:04,838 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson.i [2023-08-25 07:55:04,850 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14c43e1b0/37e22c2face44dcd964afea498f89ee3/FLAG5530ff38d [2023-08-25 07:55:04,863 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14c43e1b0/37e22c2face44dcd964afea498f89ee3 [2023-08-25 07:55:04,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 07:55:04,866 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 07:55:04,867 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 07:55:04,867 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 07:55:04,870 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 07:55:04,871 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:55:04" (1/1) ... [2023-08-25 07:55:04,871 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@476d9884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:04, skipping insertion in model container [2023-08-25 07:55:04,871 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:55:04" (1/1) ... [2023-08-25 07:55:04,931 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 07:55:05,143 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-25 07:55:05,326 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 07:55:05,342 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 07:55:05,367 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-08-25 07:55:05,378 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [265] [2023-08-25 07:55:05,379 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [265] [2023-08-25 07:55:05,408 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 07:55:05,440 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 07:55:05,441 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 07:55:05,441 WARN L669 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-08-25 07:55:05,447 INFO L206 MainTranslator]: Completed translation [2023-08-25 07:55:05,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:05 WrapperNode [2023-08-25 07:55:05,448 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 07:55:05,449 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 07:55:05,449 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 07:55:05,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 07:55:05,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:05" (1/1) ... [2023-08-25 07:55:05,487 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:05" (1/1) ... [2023-08-25 07:55:05,529 INFO L138 Inliner]: procedures = 171, calls = 49, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 175 [2023-08-25 07:55:05,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 07:55:05,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 07:55:05,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 07:55:05,530 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 07:55:05,538 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:05" (1/1) ... [2023-08-25 07:55:05,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:05" (1/1) ... [2023-08-25 07:55:05,549 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:05" (1/1) ... [2023-08-25 07:55:05,549 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:05" (1/1) ... [2023-08-25 07:55:05,555 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:05" (1/1) ... [2023-08-25 07:55:05,558 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:05" (1/1) ... [2023-08-25 07:55:05,568 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:05" (1/1) ... [2023-08-25 07:55:05,569 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:05" (1/1) ... [2023-08-25 07:55:05,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 07:55:05,573 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 07:55:05,573 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 07:55:05,573 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 07:55:05,574 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:05" (1/1) ... [2023-08-25 07:55:05,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 07:55:05,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 07:55:05,613 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 07:55:05,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 07:55:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 07:55:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-08-25 07:55:05,652 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-08-25 07:55:05,652 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-25 07:55:05,652 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-25 07:55:05,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 07:55:05,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-25 07:55:05,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 07:55:05,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 07:55:05,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 07:55:05,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 07:55:05,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-25 07:55:05,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 07:55:05,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 07:55:05,656 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 07:55:05,770 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 07:55:05,772 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 07:55:06,004 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 07:55:06,092 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 07:55:06,092 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-25 07:55:06,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:55:06 BoogieIcfgContainer [2023-08-25 07:55:06,094 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 07:55:06,096 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 07:55:06,096 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 07:55:06,099 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 07:55:06,099 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:55:04" (1/3) ... [2023-08-25 07:55:06,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ce5f5df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:55:06, skipping insertion in model container [2023-08-25 07:55:06,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:55:05" (2/3) ... [2023-08-25 07:55:06,100 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ce5f5df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:55:06, skipping insertion in model container [2023-08-25 07:55:06,101 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:55:06" (3/3) ... [2023-08-25 07:55:06,102 INFO L112 eAbstractionObserver]: Analyzing ICFG peterson.i [2023-08-25 07:55:06,119 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 07:55:06,119 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-08-25 07:55:06,120 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 07:55:06,198 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 07:55:06,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 130 transitions, 276 flow [2023-08-25 07:55:06,292 INFO L124 PetriNetUnfolderBase]: 8/128 cut-off events. [2023-08-25 07:55:06,292 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 07:55:06,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 128 events. 8/128 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 245 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-08-25 07:55:06,298 INFO L82 GeneralOperation]: Start removeDead. Operand has 129 places, 130 transitions, 276 flow [2023-08-25 07:55:06,303 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 119 transitions, 247 flow [2023-08-25 07:55:06,306 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 07:55:06,314 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 119 transitions, 247 flow [2023-08-25 07:55:06,316 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 119 transitions, 247 flow [2023-08-25 07:55:06,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 119 transitions, 247 flow [2023-08-25 07:55:06,353 INFO L124 PetriNetUnfolderBase]: 8/119 cut-off events. [2023-08-25 07:55:06,353 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 07:55:06,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 119 events. 8/119 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 247 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2023-08-25 07:55:06,359 INFO L119 LiptonReduction]: Number of co-enabled transitions 5396 [2023-08-25 07:55:08,357 INFO L134 LiptonReduction]: Checked pairs total: 17241 [2023-08-25 07:55:08,357 INFO L136 LiptonReduction]: Total number of compositions: 86 [2023-08-25 07:55:08,369 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 07:55:08,374 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;@f0d7051, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 07:55:08,375 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2023-08-25 07:55:08,376 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 07:55:08,376 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-08-25 07:55:08,376 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 07:55:08,376 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:08,377 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-25 07:55:08,377 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2023-08-25 07:55:08,381 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:08,382 INFO L85 PathProgramCache]: Analyzing trace with hash 577158, now seen corresponding path program 1 times [2023-08-25 07:55:08,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:08,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671707552] [2023-08-25 07:55:08,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:08,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:08,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:55:08,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:55:08,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:55:08,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671707552] [2023-08-25 07:55:08,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671707552] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:55:08,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:55:08,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 07:55:08,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026184179] [2023-08-25 07:55:08,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:55:08,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 07:55:08,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:55:08,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 07:55:08,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 07:55:08,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 216 [2023-08-25 07:55:08,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 121 flow. Second operand has 2 states, 2 states have (on average 93.5) internal successors, (187), 2 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:08,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:55:08,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 216 [2023-08-25 07:55:08,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:55:08,768 INFO L124 PetriNetUnfolderBase]: 481/954 cut-off events. [2023-08-25 07:55:08,768 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-08-25 07:55:08,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1814 conditions, 954 events. 481/954 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4641 event pairs, 429 based on Foata normal form. 26/820 useless extension candidates. Maximal degree in co-relation 1696. Up to 819 conditions per place. [2023-08-25 07:55:08,778 INFO L140 encePairwiseOnDemand]: 199/216 looper letters, 31 selfloop transitions, 0 changer transitions 0/39 dead transitions. [2023-08-25 07:55:08,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 39 transitions, 149 flow [2023-08-25 07:55:08,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 07:55:08,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 07:55:08,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 232 transitions. [2023-08-25 07:55:08,792 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5370370370370371 [2023-08-25 07:55:08,793 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 232 transitions. [2023-08-25 07:55:08,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 232 transitions. [2023-08-25 07:55:08,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:55:08,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 232 transitions. [2023-08-25 07:55:08,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 116.0) internal successors, (232), 2 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:08,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 216.0) internal successors, (648), 3 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:08,804 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 216.0) internal successors, (648), 3 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:08,805 INFO L175 Difference]: Start difference. First operand has 60 places, 56 transitions, 121 flow. Second operand 2 states and 232 transitions. [2023-08-25 07:55:08,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 39 transitions, 149 flow [2023-08-25 07:55:08,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 39 transitions, 144 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 07:55:08,812 INFO L231 Difference]: Finished difference. Result has 42 places, 39 transitions, 82 flow [2023-08-25 07:55:08,813 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=82, PETRI_PLACES=42, PETRI_TRANSITIONS=39} [2023-08-25 07:55:08,818 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -18 predicate places. [2023-08-25 07:55:08,819 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 39 transitions, 82 flow [2023-08-25 07:55:08,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 93.5) internal successors, (187), 2 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:08,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:08,819 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:55:08,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 07:55:08,820 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2023-08-25 07:55:08,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:08,821 INFO L85 PathProgramCache]: Analyzing trace with hash -109565154, now seen corresponding path program 1 times [2023-08-25 07:55:08,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:08,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406390100] [2023-08-25 07:55:08,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:08,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:55:08,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:55:08,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:55:08,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406390100] [2023-08-25 07:55:08,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406390100] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:55:08,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:55:08,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:55:08,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493390911] [2023-08-25 07:55:08,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:55:08,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:55:08,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:55:08,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:55:08,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:55:08,928 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 216 [2023-08-25 07:55:08,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 39 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:08,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:55:08,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 216 [2023-08-25 07:55:08,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:55:09,109 INFO L124 PetriNetUnfolderBase]: 858/1455 cut-off events. [2023-08-25 07:55:09,109 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-08-25 07:55:09,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2944 conditions, 1455 events. 858/1455 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 6285 event pairs, 662 based on Foata normal form. 0/1189 useless extension candidates. Maximal degree in co-relation 2941. Up to 1278 conditions per place. [2023-08-25 07:55:09,119 INFO L140 encePairwiseOnDemand]: 210/216 looper letters, 55 selfloop transitions, 5 changer transitions 0/60 dead transitions. [2023-08-25 07:55:09,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 60 transitions, 246 flow [2023-08-25 07:55:09,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:55:09,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:55:09,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 295 transitions. [2023-08-25 07:55:09,125 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45524691358024694 [2023-08-25 07:55:09,125 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 295 transitions. [2023-08-25 07:55:09,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 295 transitions. [2023-08-25 07:55:09,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:55:09,127 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 295 transitions. [2023-08-25 07:55:09,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:09,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:09,132 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:09,132 INFO L175 Difference]: Start difference. First operand has 42 places, 39 transitions, 82 flow. Second operand 3 states and 295 transitions. [2023-08-25 07:55:09,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 60 transitions, 246 flow [2023-08-25 07:55:09,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 60 transitions, 246 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 07:55:09,134 INFO L231 Difference]: Finished difference. Result has 46 places, 43 transitions, 120 flow [2023-08-25 07:55:09,135 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=120, PETRI_PLACES=46, PETRI_TRANSITIONS=43} [2023-08-25 07:55:09,137 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -14 predicate places. [2023-08-25 07:55:09,138 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 43 transitions, 120 flow [2023-08-25 07:55:09,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:09,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:09,143 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:55:09,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 07:55:09,144 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err6ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2023-08-25 07:55:09,144 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:09,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1207817626, now seen corresponding path program 1 times [2023-08-25 07:55:09,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:09,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040498520] [2023-08-25 07:55:09,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:09,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:55:09,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:55:09,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:55:09,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040498520] [2023-08-25 07:55:09,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040498520] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:55:09,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:55:09,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:55:09,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765058869] [2023-08-25 07:55:09,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:55:09,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:55:09,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:55:09,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:55:09,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:55:09,235 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 216 [2023-08-25 07:55:09,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 43 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:09,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:55:09,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 216 [2023-08-25 07:55:09,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:55:09,411 INFO L124 PetriNetUnfolderBase]: 847/1440 cut-off events. [2023-08-25 07:55:09,412 INFO L125 PetriNetUnfolderBase]: For 215/215 co-relation queries the response was YES. [2023-08-25 07:55:09,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3228 conditions, 1440 events. 847/1440 cut-off events. For 215/215 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6196 event pairs, 680 based on Foata normal form. 0/1210 useless extension candidates. Maximal degree in co-relation 3223. Up to 1362 conditions per place. [2023-08-25 07:55:09,419 INFO L140 encePairwiseOnDemand]: 211/216 looper letters, 58 selfloop transitions, 6 changer transitions 0/64 dead transitions. [2023-08-25 07:55:09,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 64 transitions, 307 flow [2023-08-25 07:55:09,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:55:09,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:55:09,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 294 transitions. [2023-08-25 07:55:09,421 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4537037037037037 [2023-08-25 07:55:09,421 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 294 transitions. [2023-08-25 07:55:09,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 294 transitions. [2023-08-25 07:55:09,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:55:09,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 294 transitions. [2023-08-25 07:55:09,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.0) internal successors, (294), 3 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:09,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:09,425 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:09,425 INFO L175 Difference]: Start difference. First operand has 46 places, 43 transitions, 120 flow. Second operand 3 states and 294 transitions. [2023-08-25 07:55:09,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 64 transitions, 307 flow [2023-08-25 07:55:09,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 64 transitions, 291 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 07:55:09,431 INFO L231 Difference]: Finished difference. Result has 47 places, 47 transitions, 152 flow [2023-08-25 07:55:09,431 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=47, PETRI_TRANSITIONS=47} [2023-08-25 07:55:09,432 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -13 predicate places. [2023-08-25 07:55:09,432 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 47 transitions, 152 flow [2023-08-25 07:55:09,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:09,433 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:09,433 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:55:09,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 07:55:09,437 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2023-08-25 07:55:09,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:09,437 INFO L85 PathProgramCache]: Analyzing trace with hash 2082086378, now seen corresponding path program 1 times [2023-08-25 07:55:09,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:09,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523289730] [2023-08-25 07:55:09,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:09,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:55:09,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:55:09,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:55:09,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523289730] [2023-08-25 07:55:09,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523289730] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:55:09,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:55:09,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:55:09,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605599984] [2023-08-25 07:55:09,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:55:09,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:55:09,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:55:09,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:55:09,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:55:09,486 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 216 [2023-08-25 07:55:09,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 47 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:09,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:55:09,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 216 [2023-08-25 07:55:09,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:55:09,660 INFO L124 PetriNetUnfolderBase]: 809/1400 cut-off events. [2023-08-25 07:55:09,660 INFO L125 PetriNetUnfolderBase]: For 282/282 co-relation queries the response was YES. [2023-08-25 07:55:09,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3325 conditions, 1400 events. 809/1400 cut-off events. For 282/282 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 6136 event pairs, 333 based on Foata normal form. 0/1220 useless extension candidates. Maximal degree in co-relation 3319. Up to 818 conditions per place. [2023-08-25 07:55:09,668 INFO L140 encePairwiseOnDemand]: 208/216 looper letters, 75 selfloop transitions, 10 changer transitions 0/85 dead transitions. [2023-08-25 07:55:09,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 85 transitions, 433 flow [2023-08-25 07:55:09,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:55:09,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:55:09,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 316 transitions. [2023-08-25 07:55:09,670 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4876543209876543 [2023-08-25 07:55:09,670 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 316 transitions. [2023-08-25 07:55:09,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 316 transitions. [2023-08-25 07:55:09,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:55:09,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 316 transitions. [2023-08-25 07:55:09,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:09,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:09,673 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:09,673 INFO L175 Difference]: Start difference. First operand has 47 places, 47 transitions, 152 flow. Second operand 3 states and 316 transitions. [2023-08-25 07:55:09,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 85 transitions, 433 flow [2023-08-25 07:55:09,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 85 transitions, 425 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 07:55:09,678 INFO L231 Difference]: Finished difference. Result has 50 places, 54 transitions, 236 flow [2023-08-25 07:55:09,679 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=236, PETRI_PLACES=50, PETRI_TRANSITIONS=54} [2023-08-25 07:55:09,680 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -10 predicate places. [2023-08-25 07:55:09,680 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 54 transitions, 236 flow [2023-08-25 07:55:09,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:09,681 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:09,681 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:55:09,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 07:55:09,681 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err8ASSERT_VIOLATIONASSERT === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2023-08-25 07:55:09,681 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:09,681 INFO L85 PathProgramCache]: Analyzing trace with hash 120168844, now seen corresponding path program 1 times [2023-08-25 07:55:09,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:09,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166770691] [2023-08-25 07:55:09,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:09,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:55:09,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:55:09,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:55:09,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166770691] [2023-08-25 07:55:09,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166770691] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:55:09,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:55:09,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:55:09,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004121304] [2023-08-25 07:55:09,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:55:09,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:55:09,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:55:09,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:55:09,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:55:09,749 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 216 [2023-08-25 07:55:09,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 54 transitions, 236 flow. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:09,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:55:09,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 216 [2023-08-25 07:55:09,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:55:09,915 INFO L124 PetriNetUnfolderBase]: 734/1473 cut-off events. [2023-08-25 07:55:09,915 INFO L125 PetriNetUnfolderBase]: For 1418/1490 co-relation queries the response was YES. [2023-08-25 07:55:09,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3922 conditions, 1473 events. 734/1473 cut-off events. For 1418/1490 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 8224 event pairs, 301 based on Foata normal form. 14/1352 useless extension candidates. Maximal degree in co-relation 3915. Up to 676 conditions per place. [2023-08-25 07:55:09,924 INFO L140 encePairwiseOnDemand]: 211/216 looper letters, 65 selfloop transitions, 3 changer transitions 1/82 dead transitions. [2023-08-25 07:55:09,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 82 transitions, 515 flow [2023-08-25 07:55:09,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:55:09,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:55:09,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2023-08-25 07:55:09,926 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4722222222222222 [2023-08-25 07:55:09,926 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 306 transitions. [2023-08-25 07:55:09,926 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 306 transitions. [2023-08-25 07:55:09,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:55:09,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 306 transitions. [2023-08-25 07:55:09,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:09,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:09,930 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:09,930 INFO L175 Difference]: Start difference. First operand has 50 places, 54 transitions, 236 flow. Second operand 3 states and 306 transitions. [2023-08-25 07:55:09,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 82 transitions, 515 flow [2023-08-25 07:55:09,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 82 transitions, 483 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 07:55:09,936 INFO L231 Difference]: Finished difference. Result has 52 places, 55 transitions, 236 flow [2023-08-25 07:55:09,936 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=236, PETRI_PLACES=52, PETRI_TRANSITIONS=55} [2023-08-25 07:55:09,937 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -8 predicate places. [2023-08-25 07:55:09,937 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 55 transitions, 236 flow [2023-08-25 07:55:09,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:09,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:09,938 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:55:09,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 07:55:09,938 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err8ASSERT_VIOLATIONASSERT === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2023-08-25 07:55:09,939 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:09,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1143721565, now seen corresponding path program 1 times [2023-08-25 07:55:09,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:09,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801252004] [2023-08-25 07:55:09,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:09,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:55:09,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:55:09,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:55:09,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801252004] [2023-08-25 07:55:09,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801252004] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:55:09,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:55:09,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:55:09,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103222755] [2023-08-25 07:55:09,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:55:09,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:55:09,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:55:09,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:55:09,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:55:09,974 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 216 [2023-08-25 07:55:09,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 55 transitions, 236 flow. Second operand has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:09,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:55:09,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 216 [2023-08-25 07:55:09,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:55:10,134 INFO L124 PetriNetUnfolderBase]: 649/1324 cut-off events. [2023-08-25 07:55:10,135 INFO L125 PetriNetUnfolderBase]: For 1009/1077 co-relation queries the response was YES. [2023-08-25 07:55:10,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3542 conditions, 1324 events. 649/1324 cut-off events. For 1009/1077 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 7255 event pairs, 293 based on Foata normal form. 72/1363 useless extension candidates. Maximal degree in co-relation 3534. Up to 675 conditions per place. [2023-08-25 07:55:10,142 INFO L140 encePairwiseOnDemand]: 212/216 looper letters, 61 selfloop transitions, 2 changer transitions 4/80 dead transitions. [2023-08-25 07:55:10,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 80 transitions, 493 flow [2023-08-25 07:55:10,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:55:10,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:55:10,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2023-08-25 07:55:10,144 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4691358024691358 [2023-08-25 07:55:10,144 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2023-08-25 07:55:10,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2023-08-25 07:55:10,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:55:10,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2023-08-25 07:55:10,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:10,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:10,148 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 216.0) internal successors, (864), 4 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:10,148 INFO L175 Difference]: Start difference. First operand has 52 places, 55 transitions, 236 flow. Second operand 3 states and 304 transitions. [2023-08-25 07:55:10,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 80 transitions, 493 flow [2023-08-25 07:55:10,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 80 transitions, 487 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 07:55:10,151 INFO L231 Difference]: Finished difference. Result has 53 places, 55 transitions, 240 flow [2023-08-25 07:55:10,152 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=53, PETRI_TRANSITIONS=55} [2023-08-25 07:55:10,152 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -7 predicate places. [2023-08-25 07:55:10,152 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 55 transitions, 240 flow [2023-08-25 07:55:10,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:10,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:10,153 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:55:10,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 07:55:10,153 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2023-08-25 07:55:10,154 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:10,154 INFO L85 PathProgramCache]: Analyzing trace with hash 48397591, now seen corresponding path program 1 times [2023-08-25 07:55:10,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:10,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439661910] [2023-08-25 07:55:10,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:10,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:55:10,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:55:10,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:55:10,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439661910] [2023-08-25 07:55:10,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439661910] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:55:10,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:55:10,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 07:55:10,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691715309] [2023-08-25 07:55:10,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:55:10,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 07:55:10,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:55:10,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 07:55:10,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-25 07:55:10,243 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 216 [2023-08-25 07:55:10,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 55 transitions, 240 flow. Second operand has 6 states, 6 states have (on average 90.66666666666667) internal successors, (544), 6 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:10,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:55:10,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 216 [2023-08-25 07:55:10,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:55:10,563 INFO L124 PetriNetUnfolderBase]: 832/1617 cut-off events. [2023-08-25 07:55:10,564 INFO L125 PetriNetUnfolderBase]: For 1495/1579 co-relation queries the response was YES. [2023-08-25 07:55:10,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4283 conditions, 1617 events. 832/1617 cut-off events. For 1495/1579 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9170 event pairs, 123 based on Foata normal form. 52/1634 useless extension candidates. Maximal degree in co-relation 4274. Up to 853 conditions per place. [2023-08-25 07:55:10,572 INFO L140 encePairwiseOnDemand]: 207/216 looper letters, 68 selfloop transitions, 10 changer transitions 45/136 dead transitions. [2023-08-25 07:55:10,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 136 transitions, 742 flow [2023-08-25 07:55:10,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-08-25 07:55:10,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-08-25 07:55:10,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 994 transitions. [2023-08-25 07:55:10,576 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4601851851851852 [2023-08-25 07:55:10,576 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 994 transitions. [2023-08-25 07:55:10,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 994 transitions. [2023-08-25 07:55:10,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:55:10,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 994 transitions. [2023-08-25 07:55:10,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 99.4) internal successors, (994), 10 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:10,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 216.0) internal successors, (2376), 11 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:10,583 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 216.0) internal successors, (2376), 11 states have internal predecessors, (2376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:10,583 INFO L175 Difference]: Start difference. First operand has 53 places, 55 transitions, 240 flow. Second operand 10 states and 994 transitions. [2023-08-25 07:55:10,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 136 transitions, 742 flow [2023-08-25 07:55:10,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 136 transitions, 739 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 07:55:10,587 INFO L231 Difference]: Finished difference. Result has 69 places, 64 transitions, 324 flow [2023-08-25 07:55:10,587 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=324, PETRI_PLACES=69, PETRI_TRANSITIONS=64} [2023-08-25 07:55:10,588 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 9 predicate places. [2023-08-25 07:55:10,588 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 64 transitions, 324 flow [2023-08-25 07:55:10,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 90.66666666666667) internal successors, (544), 6 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:10,588 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:55:10,588 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:55:10,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 07:55:10,589 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2023-08-25 07:55:10,589 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:55:10,589 INFO L85 PathProgramCache]: Analyzing trace with hash -812489257, now seen corresponding path program 2 times [2023-08-25 07:55:10,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:55:10,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956826668] [2023-08-25 07:55:10,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:55:10,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:55:10,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:55:10,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:55:10,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956826668] [2023-08-25 07:55:10,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956826668] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:55:10,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:55:10,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-08-25 07:55:10,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270088235] [2023-08-25 07:55:10,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:55:10,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-25 07:55:10,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:55:10,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-25 07:55:10,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-08-25 07:55:10,657 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 216 [2023-08-25 07:55:10,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 64 transitions, 324 flow. Second operand has 6 states, 6 states have (on average 90.66666666666667) internal successors, (544), 6 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:10,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:55:10,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 216 [2023-08-25 07:55:10,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:55:10,898 INFO L124 PetriNetUnfolderBase]: 464/845 cut-off events. [2023-08-25 07:55:10,898 INFO L125 PetriNetUnfolderBase]: For 981/989 co-relation queries the response was YES. [2023-08-25 07:55:10,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2551 conditions, 845 events. 464/845 cut-off events. For 981/989 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3674 event pairs, 56 based on Foata normal form. 32/877 useless extension candidates. Maximal degree in co-relation 2534. Up to 380 conditions per place. [2023-08-25 07:55:10,901 INFO L140 encePairwiseOnDemand]: 207/216 looper letters, 0 selfloop transitions, 0 changer transitions 115/115 dead transitions. [2023-08-25 07:55:10,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 115 transitions, 779 flow [2023-08-25 07:55:10,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-08-25 07:55:10,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-08-25 07:55:10,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 888 transitions. [2023-08-25 07:55:10,904 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4567901234567901 [2023-08-25 07:55:10,904 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 888 transitions. [2023-08-25 07:55:10,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 888 transitions. [2023-08-25 07:55:10,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:55:10,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 888 transitions. [2023-08-25 07:55:10,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 98.66666666666667) internal successors, (888), 9 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:10,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 216.0) internal successors, (2160), 10 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:10,910 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 216.0) internal successors, (2160), 10 states have internal predecessors, (2160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:10,911 INFO L175 Difference]: Start difference. First operand has 69 places, 64 transitions, 324 flow. Second operand 9 states and 888 transitions. [2023-08-25 07:55:10,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 115 transitions, 779 flow [2023-08-25 07:55:10,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 115 transitions, 653 flow, removed 47 selfloop flow, removed 8 redundant places. [2023-08-25 07:55:10,918 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2023-08-25 07:55:10,918 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=216, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2023-08-25 07:55:10,918 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 0 predicate places. [2023-08-25 07:55:10,919 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2023-08-25 07:55:10,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 90.66666666666667) internal successors, (544), 6 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:55:10,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (43 of 44 remaining) [2023-08-25 07:55:10,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (42 of 44 remaining) [2023-08-25 07:55:10,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err2ASSERT_VIOLATIONDATA_RACE (41 of 44 remaining) [2023-08-25 07:55:10,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err3ASSERT_VIOLATIONDATA_RACE (40 of 44 remaining) [2023-08-25 07:55:10,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err4ASSERT_VIOLATIONDATA_RACE (39 of 44 remaining) [2023-08-25 07:55:10,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err5ASSERT_VIOLATIONDATA_RACE (38 of 44 remaining) [2023-08-25 07:55:10,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err6ASSERT_VIOLATIONDATA_RACE (37 of 44 remaining) [2023-08-25 07:55:10,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err7ASSERT_VIOLATIONDATA_RACE (36 of 44 remaining) [2023-08-25 07:55:10,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err9ASSERT_VIOLATIONDATA_RACE (35 of 44 remaining) [2023-08-25 07:55:10,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err8ASSERT_VIOLATIONASSERT (34 of 44 remaining) [2023-08-25 07:55:10,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (33 of 44 remaining) [2023-08-25 07:55:10,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (32 of 44 remaining) [2023-08-25 07:55:10,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (31 of 44 remaining) [2023-08-25 07:55:10,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (30 of 44 remaining) [2023-08-25 07:55:10,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (29 of 44 remaining) [2023-08-25 07:55:10,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 44 remaining) [2023-08-25 07:55:10,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 44 remaining) [2023-08-25 07:55:10,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONDATA_RACE (26 of 44 remaining) [2023-08-25 07:55:10,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err9ASSERT_VIOLATIONDATA_RACE (25 of 44 remaining) [2023-08-25 07:55:10,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONASSERT (24 of 44 remaining) [2023-08-25 07:55:10,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (23 of 44 remaining) [2023-08-25 07:55:10,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 44 remaining) [2023-08-25 07:55:10,924 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 44 remaining) [2023-08-25 07:55:10,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 44 remaining) [2023-08-25 07:55:10,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (19 of 44 remaining) [2023-08-25 07:55:10,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (18 of 44 remaining) [2023-08-25 07:55:10,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err2ASSERT_VIOLATIONDATA_RACE (17 of 44 remaining) [2023-08-25 07:55:10,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err3ASSERT_VIOLATIONDATA_RACE (16 of 44 remaining) [2023-08-25 07:55:10,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err4ASSERT_VIOLATIONDATA_RACE (15 of 44 remaining) [2023-08-25 07:55:10,925 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err5ASSERT_VIOLATIONDATA_RACE (14 of 44 remaining) [2023-08-25 07:55:10,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err6ASSERT_VIOLATIONDATA_RACE (13 of 44 remaining) [2023-08-25 07:55:10,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err7ASSERT_VIOLATIONDATA_RACE (12 of 44 remaining) [2023-08-25 07:55:10,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err9ASSERT_VIOLATIONDATA_RACE (11 of 44 remaining) [2023-08-25 07:55:10,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr2Err8ASSERT_VIOLATIONASSERT (10 of 44 remaining) [2023-08-25 07:55:10,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 44 remaining) [2023-08-25 07:55:10,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 44 remaining) [2023-08-25 07:55:10,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 44 remaining) [2023-08-25 07:55:10,926 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 44 remaining) [2023-08-25 07:55:10,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 44 remaining) [2023-08-25 07:55:10,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 44 remaining) [2023-08-25 07:55:10,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 44 remaining) [2023-08-25 07:55:10,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err7ASSERT_VIOLATIONDATA_RACE (2 of 44 remaining) [2023-08-25 07:55:10,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err9ASSERT_VIOLATIONDATA_RACE (1 of 44 remaining) [2023-08-25 07:55:10,927 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thr1Err8ASSERT_VIOLATIONASSERT (0 of 44 remaining) [2023-08-25 07:55:10,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 07:55:10,928 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2023-08-25 07:55:10,932 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 07:55:10,933 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 07:55:10,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:55:10 BasicIcfg [2023-08-25 07:55:10,935 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 07:55:10,936 INFO L158 Benchmark]: Toolchain (without parser) took 6069.54ms. Allocated memory was 379.6MB in the beginning and 467.7MB in the end (delta: 88.1MB). Free memory was 354.3MB in the beginning and 307.7MB in the end (delta: 46.5MB). Peak memory consumption was 136.4MB. Max. memory is 16.0GB. [2023-08-25 07:55:10,936 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 379.6MB. Free memory was 357.0MB in the beginning and 356.9MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 07:55:10,936 INFO L158 Benchmark]: CACSL2BoogieTranslator took 580.80ms. Allocated memory is still 379.6MB. Free memory was 354.3MB in the beginning and 334.1MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 07:55:10,936 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.27ms. Allocated memory is still 379.6MB. Free memory was 334.1MB in the beginning and 331.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 07:55:10,937 INFO L158 Benchmark]: Boogie Preprocessor took 42.31ms. Allocated memory is still 379.6MB. Free memory was 331.0MB in the beginning and 329.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 07:55:10,937 INFO L158 Benchmark]: RCFGBuilder took 521.42ms. Allocated memory is still 379.6MB. Free memory was 329.1MB in the beginning and 307.4MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 07:55:10,937 INFO L158 Benchmark]: TraceAbstraction took 4839.10ms. Allocated memory was 379.6MB in the beginning and 467.7MB in the end (delta: 88.1MB). Free memory was 306.8MB in the beginning and 307.7MB in the end (delta: -930.5kB). Peak memory consumption was 90.3MB. Max. memory is 16.0GB. [2023-08-25 07:55:10,938 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 379.6MB. Free memory was 357.0MB in the beginning and 356.9MB in the end (delta: 157.4kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 580.80ms. Allocated memory is still 379.6MB. Free memory was 354.3MB in the beginning and 334.1MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 80.27ms. Allocated memory is still 379.6MB. Free memory was 334.1MB in the beginning and 331.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 42.31ms. Allocated memory is still 379.6MB. Free memory was 331.0MB in the beginning and 329.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 521.42ms. Allocated memory is still 379.6MB. Free memory was 329.1MB in the beginning and 307.4MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 4839.10ms. Allocated memory was 379.6MB in the beginning and 467.7MB in the end (delta: 88.1MB). Free memory was 306.8MB in the beginning and 307.7MB in the end (delta: -930.5kB). Peak memory consumption was 90.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 265]: Unsoundness Warning unspecified type, defaulting to int C: short [265] - GenericResultAtLocation [Line: 265]: Unsoundness Warning unspecified type, defaulting to int C: short [265] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 118 PlacesBefore, 60 PlacesAfterwards, 119 TransitionsBefore, 56 TransitionsAfterwards, 5396 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 5 ChoiceCompositions, 86 TotalNumberOfCompositions, 17241 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 8179, independent: 7780, independent conditional: 0, independent unconditional: 7780, dependent: 399, dependent conditional: 0, dependent unconditional: 399, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2832, independent: 2764, independent conditional: 0, independent unconditional: 2764, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 8179, independent: 5016, independent conditional: 0, independent unconditional: 5016, dependent: 331, dependent conditional: 0, dependent unconditional: 331, unknown: 2832, unknown conditional: 0, unknown unconditional: 2832] , Statistics on independence cache: Total cache size (in pairs): 501, Positive cache size: 463, Positive conditional cache size: 0, Positive unconditional cache size: 463, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 733]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 736]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 739]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 742]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 746]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 749]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 753]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 755]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 12]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 705]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 708]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 721]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 727]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 12]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 763]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 764]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 195 locations, 44 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.7s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 239 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 239 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1035 IncrementalHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 22 mSDtfsCounter, 1035 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=324occurred in iteration=7, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 186 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-25 07:55:10,956 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...