/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked PROGRAM_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 07:38:01,280 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 07:38:01,360 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 07:38:01,365 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 07:38:01,365 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 07:38:01,395 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 07:38:01,395 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 07:38:01,396 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 07:38:01,396 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 07:38:01,400 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 07:38:01,400 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 07:38:01,400 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 07:38:01,400 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 07:38:01,401 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 07:38:01,402 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 07:38:01,402 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 07:38:01,402 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 07:38:01,402 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 07:38:01,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 07:38:01,402 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 07:38:01,403 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 07:38:01,403 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 07:38:01,404 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 07:38:01,404 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 07:38:01,404 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 07:38:01,404 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 07:38:01,405 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 07:38:01,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:38:01,405 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 07:38:01,405 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 07:38:01,406 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 07:38:01,406 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 07:38:01,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 07:38:01,407 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 07:38:01,407 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 07:38:01,407 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> PROGRAM_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-26 07:38:01,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 07:38:01,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 07:38:01,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 07:38:01,728 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 07:38:01,729 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 07:38:01,730 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2023-08-26 07:38:02,830 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 07:38:03,133 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 07:38:03,133 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2023-08-26 07:38:03,153 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a74901c5b/9c6af143f6f34b35aeab4cb9e58d8e4b/FLAG0f358767d [2023-08-26 07:38:03,167 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a74901c5b/9c6af143f6f34b35aeab4cb9e58d8e4b [2023-08-26 07:38:03,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 07:38:03,173 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 07:38:03,175 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 07:38:03,175 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 07:38:03,177 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 07:38:03,178 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:38:03" (1/1) ... [2023-08-26 07:38:03,179 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b5a11dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:38:03, skipping insertion in model container [2023-08-26 07:38:03,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 07:38:03" (1/1) ... [2023-08-26 07:38:03,229 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 07:38:03,507 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:38:03,515 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 07:38:03,532 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [232] [2023-08-26 07:38:03,534 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [233] [2023-08-26 07:38:03,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 07:38:03,583 INFO L206 MainTranslator]: Completed translation [2023-08-26 07:38:03,584 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:38:03 WrapperNode [2023-08-26 07:38:03,584 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 07:38:03,585 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 07:38:03,585 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 07:38:03,585 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 07:38:03,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:38:03" (1/1) ... [2023-08-26 07:38:03,604 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:38:03" (1/1) ... [2023-08-26 07:38:03,631 INFO L138 Inliner]: procedures = 165, calls = 36, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 181 [2023-08-26 07:38:03,632 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 07:38:03,632 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 07:38:03,632 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 07:38:03,633 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 07:38:03,640 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:38:03" (1/1) ... [2023-08-26 07:38:03,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:38:03" (1/1) ... [2023-08-26 07:38:03,644 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:38:03" (1/1) ... [2023-08-26 07:38:03,644 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:38:03" (1/1) ... [2023-08-26 07:38:03,655 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:38:03" (1/1) ... [2023-08-26 07:38:03,658 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:38:03" (1/1) ... [2023-08-26 07:38:03,660 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:38:03" (1/1) ... [2023-08-26 07:38:03,661 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:38:03" (1/1) ... [2023-08-26 07:38:03,664 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 07:38:03,665 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 07:38:03,665 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 07:38:03,665 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 07:38:03,666 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:38:03" (1/1) ... [2023-08-26 07:38:03,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 07:38:03,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:38:03,694 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 07:38:03,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 07:38:03,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 07:38:03,722 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2023-08-26 07:38:03,722 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2023-08-26 07:38:03,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 07:38:03,723 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 07:38:03,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 07:38:03,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 07:38:03,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 07:38:03,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 07:38:03,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 07:38:03,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 07:38:03,725 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 07:38:03,830 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 07:38:03,832 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 07:38:04,119 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 07:38:04,145 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 07:38:04,145 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-26 07:38:04,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:38:04 BoogieIcfgContainer [2023-08-26 07:38:04,147 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 07:38:04,149 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 07:38:04,149 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 07:38:04,151 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 07:38:04,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 07:38:03" (1/3) ... [2023-08-26 07:38:04,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e312cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:38:04, skipping insertion in model container [2023-08-26 07:38:04,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 07:38:03" (2/3) ... [2023-08-26 07:38:04,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e312cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 07:38:04, skipping insertion in model container [2023-08-26 07:38:04,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 07:38:04" (3/3) ... [2023-08-26 07:38:04,153 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2023-08-26 07:38:04,168 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 07:38:04,169 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-08-26 07:38:04,169 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 07:38:04,295 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-26 07:38:04,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 195 places, 203 transitions, 411 flow [2023-08-26 07:38:04,446 INFO L124 PetriNetUnfolderBase]: 12/202 cut-off events. [2023-08-26 07:38:04,447 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:38:04,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 202 events. 12/202 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 398 event pairs, 0 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 158. Up to 2 conditions per place. [2023-08-26 07:38:04,455 INFO L82 GeneralOperation]: Start removeDead. Operand has 195 places, 203 transitions, 411 flow [2023-08-26 07:38:04,467 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 194 places, 202 transitions, 407 flow [2023-08-26 07:38:04,473 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 07:38:04,491 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 194 places, 202 transitions, 407 flow [2023-08-26 07:38:04,495 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 194 places, 202 transitions, 407 flow [2023-08-26 07:38:04,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 194 places, 202 transitions, 407 flow [2023-08-26 07:38:04,544 INFO L124 PetriNetUnfolderBase]: 12/202 cut-off events. [2023-08-26 07:38:04,544 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:38:04,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 202 events. 12/202 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 398 event pairs, 0 based on Foata normal form. 0/178 useless extension candidates. Maximal degree in co-relation 158. Up to 2 conditions per place. [2023-08-26 07:38:04,555 INFO L119 LiptonReduction]: Number of co-enabled transitions 11424 [2023-08-26 07:38:10,415 INFO L134 LiptonReduction]: Checked pairs total: 54553 [2023-08-26 07:38:10,415 INFO L136 LiptonReduction]: Total number of compositions: 158 [2023-08-26 07:38:10,426 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-26 07:38:10,431 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;@3cfa8f86, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 07:38:10,432 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-08-26 07:38:10,432 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 07:38:10,433 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-08-26 07:38:10,433 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:38:10,433 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:38:10,433 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-26 07:38:10,434 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-26 07:38:10,438 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:38:10,438 INFO L85 PathProgramCache]: Analyzing trace with hash 753, now seen corresponding path program 1 times [2023-08-26 07:38:10,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:38:10,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18570605] [2023-08-26 07:38:10,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:38:10,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:38:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:38:10,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:38:10,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:38:10,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18570605] [2023-08-26 07:38:10,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18570605] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:38:10,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:38:10,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-26 07:38:10,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824213320] [2023-08-26 07:38:10,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:38:10,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-26 07:38:10,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:38:10,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-26 07:38:10,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-26 07:38:10,567 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 361 [2023-08-26 07:38:10,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 86 transitions, 175 flow. Second operand has 2 states, 2 states have (on average 192.5) internal successors, (385), 2 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:10,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:38:10,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 361 [2023-08-26 07:38:10,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:38:10,688 INFO L124 PetriNetUnfolderBase]: 214/749 cut-off events. [2023-08-26 07:38:10,688 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:38:10,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1144 conditions, 749 events. 214/749 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4461 event pairs, 149 based on Foata normal form. 21/671 useless extension candidates. Maximal degree in co-relation 1135. Up to 391 conditions per place. [2023-08-26 07:38:10,693 INFO L140 encePairwiseOnDemand]: 356/361 looper letters, 31 selfloop transitions, 0 changer transitions 0/79 dead transitions. [2023-08-26 07:38:10,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 79 transitions, 223 flow [2023-08-26 07:38:10,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-26 07:38:10,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-26 07:38:10,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 420 transitions. [2023-08-26 07:38:10,710 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5817174515235457 [2023-08-26 07:38:10,710 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 420 transitions. [2023-08-26 07:38:10,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 420 transitions. [2023-08-26 07:38:10,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:38:10,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 420 transitions. [2023-08-26 07:38:10,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 210.0) internal successors, (420), 2 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:10,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 361.0) internal successors, (1083), 3 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:10,730 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 361.0) internal successors, (1083), 3 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:10,731 INFO L175 Difference]: Start difference. First operand has 82 places, 86 transitions, 175 flow. Second operand 2 states and 420 transitions. [2023-08-26 07:38:10,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 79 transitions, 223 flow [2023-08-26 07:38:10,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 79 transitions, 222 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-26 07:38:10,736 INFO L231 Difference]: Finished difference. Result has 78 places, 79 transitions, 160 flow [2023-08-26 07:38:10,737 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=160, PETRI_PLACES=78, PETRI_TRANSITIONS=79} [2023-08-26 07:38:10,743 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, -4 predicate places. [2023-08-26 07:38:10,743 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 79 transitions, 160 flow [2023-08-26 07:38:10,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 192.5) internal successors, (385), 2 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:10,744 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:38:10,744 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:38:10,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 07:38:10,744 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-26 07:38:10,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:38:10,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1715686429, now seen corresponding path program 1 times [2023-08-26 07:38:10,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:38:10,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896151661] [2023-08-26 07:38:10,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:38:10,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:38:10,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:38:11,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:38:11,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:38:11,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896151661] [2023-08-26 07:38:11,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896151661] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:38:11,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:38:11,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:38:11,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520844073] [2023-08-26 07:38:11,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:38:11,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:38:11,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:38:11,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:38:11,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:38:11,333 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 361 [2023-08-26 07:38:11,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 79 transitions, 160 flow. Second operand has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:11,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:38:11,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 361 [2023-08-26 07:38:11,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:38:12,276 INFO L124 PetriNetUnfolderBase]: 2725/5250 cut-off events. [2023-08-26 07:38:12,276 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 07:38:12,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10504 conditions, 5250 events. 2725/5250 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 30815 event pairs, 323 based on Foata normal form. 0/4400 useless extension candidates. Maximal degree in co-relation 10501. Up to 2424 conditions per place. [2023-08-26 07:38:12,303 INFO L140 encePairwiseOnDemand]: 321/361 looper letters, 192 selfloop transitions, 47 changer transitions 0/240 dead transitions. [2023-08-26 07:38:12,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 240 transitions, 960 flow [2023-08-26 07:38:12,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:38:12,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:38:12,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 970 transitions. [2023-08-26 07:38:12,311 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44783010156971376 [2023-08-26 07:38:12,311 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 970 transitions. [2023-08-26 07:38:12,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 970 transitions. [2023-08-26 07:38:12,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:38:12,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 970 transitions. [2023-08-26 07:38:12,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 161.66666666666666) internal successors, (970), 6 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:12,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:12,321 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:12,321 INFO L175 Difference]: Start difference. First operand has 78 places, 79 transitions, 160 flow. Second operand 6 states and 970 transitions. [2023-08-26 07:38:12,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 240 transitions, 960 flow [2023-08-26 07:38:12,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 240 transitions, 960 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 07:38:12,328 INFO L231 Difference]: Finished difference. Result has 88 places, 126 transitions, 522 flow [2023-08-26 07:38:12,329 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=522, PETRI_PLACES=88, PETRI_TRANSITIONS=126} [2023-08-26 07:38:12,329 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 6 predicate places. [2023-08-26 07:38:12,330 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 126 transitions, 522 flow [2023-08-26 07:38:12,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:12,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:38:12,331 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:38:12,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 07:38:12,332 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-26 07:38:12,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:38:12,336 INFO L85 PathProgramCache]: Analyzing trace with hash 289670483, now seen corresponding path program 1 times [2023-08-26 07:38:12,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:38:12,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178084191] [2023-08-26 07:38:12,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:38:12,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:38:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:38:12,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:38:12,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:38:12,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178084191] [2023-08-26 07:38:12,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178084191] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:38:12,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:38:12,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:38:12,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623043909] [2023-08-26 07:38:12,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:38:12,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:38:12,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:38:12,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:38:12,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:38:12,620 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 361 [2023-08-26 07:38:12,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 126 transitions, 522 flow. Second operand has 6 states, 6 states have (on average 126.66666666666667) internal successors, (760), 6 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:12,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:38:12,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 361 [2023-08-26 07:38:12,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:38:13,686 INFO L124 PetriNetUnfolderBase]: 3509/6799 cut-off events. [2023-08-26 07:38:13,686 INFO L125 PetriNetUnfolderBase]: For 3169/3169 co-relation queries the response was YES. [2023-08-26 07:38:13,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17855 conditions, 6799 events. 3509/6799 cut-off events. For 3169/3169 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 42047 event pairs, 645 based on Foata normal form. 0/5961 useless extension candidates. Maximal degree in co-relation 17847. Up to 3462 conditions per place. [2023-08-26 07:38:13,724 INFO L140 encePairwiseOnDemand]: 342/361 looper letters, 421 selfloop transitions, 37 changer transitions 0/461 dead transitions. [2023-08-26 07:38:13,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 461 transitions, 2910 flow [2023-08-26 07:38:13,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:38:13,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:38:13,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1035 transitions. [2023-08-26 07:38:13,727 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4778393351800554 [2023-08-26 07:38:13,727 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1035 transitions. [2023-08-26 07:38:13,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1035 transitions. [2023-08-26 07:38:13,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:38:13,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1035 transitions. [2023-08-26 07:38:13,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 172.5) internal successors, (1035), 6 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:13,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:13,734 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:13,734 INFO L175 Difference]: Start difference. First operand has 88 places, 126 transitions, 522 flow. Second operand 6 states and 1035 transitions. [2023-08-26 07:38:13,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 461 transitions, 2910 flow [2023-08-26 07:38:13,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 461 transitions, 2910 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 07:38:13,750 INFO L231 Difference]: Finished difference. Result has 98 places, 162 transitions, 830 flow [2023-08-26 07:38:13,751 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=830, PETRI_PLACES=98, PETRI_TRANSITIONS=162} [2023-08-26 07:38:13,751 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 16 predicate places. [2023-08-26 07:38:13,751 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 162 transitions, 830 flow [2023-08-26 07:38:13,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 126.66666666666667) internal successors, (760), 6 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:13,752 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:38:13,752 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:38:13,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 07:38:13,753 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr4ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-26 07:38:13,753 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:38:13,753 INFO L85 PathProgramCache]: Analyzing trace with hash 2066862266, now seen corresponding path program 1 times [2023-08-26 07:38:13,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:38:13,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846207242] [2023-08-26 07:38:13,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:38:13,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:38:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:38:13,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:38:13,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:38:13,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846207242] [2023-08-26 07:38:13,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846207242] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:38:13,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:38:13,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 07:38:13,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979357152] [2023-08-26 07:38:13,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:38:13,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 07:38:13,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:38:13,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 07:38:13,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 07:38:13,850 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 361 [2023-08-26 07:38:13,851 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 162 transitions, 830 flow. Second operand has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:13,851 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:38:13,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 361 [2023-08-26 07:38:13,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:38:14,811 INFO L124 PetriNetUnfolderBase]: 3350/7428 cut-off events. [2023-08-26 07:38:14,811 INFO L125 PetriNetUnfolderBase]: For 4236/4462 co-relation queries the response was YES. [2023-08-26 07:38:14,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21239 conditions, 7428 events. 3350/7428 cut-off events. For 4236/4462 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 56251 event pairs, 1039 based on Foata normal form. 58/6873 useless extension candidates. Maximal degree in co-relation 21226. Up to 3313 conditions per place. [2023-08-26 07:38:14,859 INFO L140 encePairwiseOnDemand]: 352/361 looper letters, 248 selfloop transitions, 14 changer transitions 0/306 dead transitions. [2023-08-26 07:38:14,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 306 transitions, 1928 flow [2023-08-26 07:38:14,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-08-26 07:38:14,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-08-26 07:38:14,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1046 transitions. [2023-08-26 07:38:14,863 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4139295607439652 [2023-08-26 07:38:14,863 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1046 transitions. [2023-08-26 07:38:14,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1046 transitions. [2023-08-26 07:38:14,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:38:14,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1046 transitions. [2023-08-26 07:38:14,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 149.42857142857142) internal successors, (1046), 7 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:14,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 361.0) internal successors, (2888), 8 states have internal predecessors, (2888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:14,871 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 361.0) internal successors, (2888), 8 states have internal predecessors, (2888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:14,871 INFO L175 Difference]: Start difference. First operand has 98 places, 162 transitions, 830 flow. Second operand 7 states and 1046 transitions. [2023-08-26 07:38:14,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 306 transitions, 1928 flow [2023-08-26 07:38:14,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 306 transitions, 1928 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 07:38:14,900 INFO L231 Difference]: Finished difference. Result has 109 places, 176 transitions, 945 flow [2023-08-26 07:38:14,900 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=945, PETRI_PLACES=109, PETRI_TRANSITIONS=176} [2023-08-26 07:38:14,901 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 27 predicate places. [2023-08-26 07:38:14,901 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 176 transitions, 945 flow [2023-08-26 07:38:14,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 129.0) internal successors, (645), 5 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:14,902 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:38:14,902 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:38:14,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-26 07:38:14,902 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-26 07:38:14,902 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:38:14,902 INFO L85 PathProgramCache]: Analyzing trace with hash -923569067, now seen corresponding path program 1 times [2023-08-26 07:38:14,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:38:14,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821397386] [2023-08-26 07:38:14,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:38:14,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:38:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:38:15,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:38:15,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:38:15,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821397386] [2023-08-26 07:38:15,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821397386] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:38:15,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:38:15,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 07:38:15,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799533580] [2023-08-26 07:38:15,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:38:15,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 07:38:15,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:38:15,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 07:38:15,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 07:38:15,213 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 361 [2023-08-26 07:38:15,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 176 transitions, 945 flow. Second operand has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:15,214 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:38:15,214 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 361 [2023-08-26 07:38:15,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:38:16,345 INFO L124 PetriNetUnfolderBase]: 4054/8908 cut-off events. [2023-08-26 07:38:16,345 INFO L125 PetriNetUnfolderBase]: For 6249/6595 co-relation queries the response was YES. [2023-08-26 07:38:16,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26677 conditions, 8908 events. 4054/8908 cut-off events. For 6249/6595 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 69988 event pairs, 1471 based on Foata normal form. 117/8444 useless extension candidates. Maximal degree in co-relation 26658. Up to 6310 conditions per place. [2023-08-26 07:38:16,397 INFO L140 encePairwiseOnDemand]: 354/361 looper letters, 218 selfloop transitions, 14 changer transitions 0/276 dead transitions. [2023-08-26 07:38:16,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 276 transitions, 1812 flow [2023-08-26 07:38:16,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:38:16,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:38:16,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 898 transitions. [2023-08-26 07:38:16,401 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41458910433979684 [2023-08-26 07:38:16,401 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 898 transitions. [2023-08-26 07:38:16,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 898 transitions. [2023-08-26 07:38:16,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:38:16,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 898 transitions. [2023-08-26 07:38:16,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 149.66666666666666) internal successors, (898), 6 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:16,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:16,406 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:16,406 INFO L175 Difference]: Start difference. First operand has 109 places, 176 transitions, 945 flow. Second operand 6 states and 898 transitions. [2023-08-26 07:38:16,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 276 transitions, 1812 flow [2023-08-26 07:38:16,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 276 transitions, 1812 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-26 07:38:16,441 INFO L231 Difference]: Finished difference. Result has 118 places, 190 transitions, 1086 flow [2023-08-26 07:38:16,441 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=945, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1086, PETRI_PLACES=118, PETRI_TRANSITIONS=190} [2023-08-26 07:38:16,442 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 36 predicate places. [2023-08-26 07:38:16,442 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 190 transitions, 1086 flow [2023-08-26 07:38:16,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 128.0) internal successors, (640), 5 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:16,443 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:38:16,443 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:38:16,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-26 07:38:16,443 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-26 07:38:16,443 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:38:16,443 INFO L85 PathProgramCache]: Analyzing trace with hash -91479639, now seen corresponding path program 1 times [2023-08-26 07:38:16,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:38:16,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910898299] [2023-08-26 07:38:16,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:38:16,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:38:16,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:38:16,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:38:16,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:38:16,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910898299] [2023-08-26 07:38:16,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910898299] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:38:16,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:38:16,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:38:16,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652766204] [2023-08-26 07:38:16,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:38:16,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:38:16,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:38:16,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:38:16,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:38:16,763 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 361 [2023-08-26 07:38:16,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 190 transitions, 1086 flow. Second operand has 6 states, 6 states have (on average 126.66666666666667) internal successors, (760), 6 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:16,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:38:16,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 361 [2023-08-26 07:38:16,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:38:18,620 INFO L124 PetriNetUnfolderBase]: 7163/13936 cut-off events. [2023-08-26 07:38:18,620 INFO L125 PetriNetUnfolderBase]: For 13322/13322 co-relation queries the response was YES. [2023-08-26 07:38:18,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45850 conditions, 13936 events. 7163/13936 cut-off events. For 13322/13322 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 100865 event pairs, 3468 based on Foata normal form. 0/13268 useless extension candidates. Maximal degree in co-relation 45826. Up to 12592 conditions per place. [2023-08-26 07:38:18,694 INFO L140 encePairwiseOnDemand]: 330/361 looper letters, 320 selfloop transitions, 153 changer transitions 0/476 dead transitions. [2023-08-26 07:38:18,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 476 transitions, 3523 flow [2023-08-26 07:38:18,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:38:18,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:38:18,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1008 transitions. [2023-08-26 07:38:18,697 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46537396121883656 [2023-08-26 07:38:18,697 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1008 transitions. [2023-08-26 07:38:18,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1008 transitions. [2023-08-26 07:38:18,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:38:18,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1008 transitions. [2023-08-26 07:38:18,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:18,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:18,703 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:18,704 INFO L175 Difference]: Start difference. First operand has 118 places, 190 transitions, 1086 flow. Second operand 6 states and 1008 transitions. [2023-08-26 07:38:18,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 476 transitions, 3523 flow [2023-08-26 07:38:18,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 476 transitions, 3513 flow, removed 5 selfloop flow, removed 0 redundant places. [2023-08-26 07:38:18,778 INFO L231 Difference]: Finished difference. Result has 128 places, 333 transitions, 2464 flow [2023-08-26 07:38:18,779 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=1076, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2464, PETRI_PLACES=128, PETRI_TRANSITIONS=333} [2023-08-26 07:38:18,781 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 46 predicate places. [2023-08-26 07:38:18,781 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 333 transitions, 2464 flow [2023-08-26 07:38:18,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 126.66666666666667) internal successors, (760), 6 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:18,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:38:18,782 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:38:18,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-26 07:38:18,783 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-26 07:38:18,783 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:38:18,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1655148550, now seen corresponding path program 1 times [2023-08-26 07:38:18,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:38:18,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856141963] [2023-08-26 07:38:18,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:38:18,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:38:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:38:19,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:38:19,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:38:19,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856141963] [2023-08-26 07:38:19,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856141963] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:38:19,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:38:19,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 07:38:19,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082067467] [2023-08-26 07:38:19,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:38:19,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 07:38:19,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:38:19,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 07:38:19,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 07:38:19,180 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 361 [2023-08-26 07:38:19,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 333 transitions, 2464 flow. Second operand has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:19,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:38:19,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 361 [2023-08-26 07:38:19,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:38:21,096 INFO L124 PetriNetUnfolderBase]: 6812/15319 cut-off events. [2023-08-26 07:38:21,097 INFO L125 PetriNetUnfolderBase]: For 21395/22031 co-relation queries the response was YES. [2023-08-26 07:38:21,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55115 conditions, 15319 events. 6812/15319 cut-off events. For 21395/22031 co-relation queries the response was YES. Maximal size of possible extension queue 440. Compared 137605 event pairs, 711 based on Foata normal form. 262/14829 useless extension candidates. Maximal degree in co-relation 55086. Up to 7570 conditions per place. [2023-08-26 07:38:21,208 INFO L140 encePairwiseOnDemand]: 354/361 looper letters, 539 selfloop transitions, 11 changer transitions 0/600 dead transitions. [2023-08-26 07:38:21,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 600 transitions, 5560 flow [2023-08-26 07:38:21,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 07:38:21,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 07:38:21,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 647 transitions. [2023-08-26 07:38:21,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44806094182825484 [2023-08-26 07:38:21,211 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 647 transitions. [2023-08-26 07:38:21,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 647 transitions. [2023-08-26 07:38:21,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:38:21,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 647 transitions. [2023-08-26 07:38:21,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 161.75) internal successors, (647), 4 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:21,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 361.0) internal successors, (1805), 5 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:21,215 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 361.0) internal successors, (1805), 5 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:21,215 INFO L175 Difference]: Start difference. First operand has 128 places, 333 transitions, 2464 flow. Second operand 4 states and 647 transitions. [2023-08-26 07:38:21,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 600 transitions, 5560 flow [2023-08-26 07:38:21,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 600 transitions, 5300 flow, removed 130 selfloop flow, removed 0 redundant places. [2023-08-26 07:38:21,513 INFO L231 Difference]: Finished difference. Result has 132 places, 338 transitions, 2396 flow [2023-08-26 07:38:21,514 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=2334, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=2396, PETRI_PLACES=132, PETRI_TRANSITIONS=338} [2023-08-26 07:38:21,514 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 50 predicate places. [2023-08-26 07:38:21,514 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 338 transitions, 2396 flow [2023-08-26 07:38:21,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 135.0) internal successors, (540), 4 states have internal predecessors, (540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:21,515 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:38:21,515 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:38:21,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-26 07:38:21,515 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-26 07:38:21,515 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:38:21,515 INFO L85 PathProgramCache]: Analyzing trace with hash -493032312, now seen corresponding path program 2 times [2023-08-26 07:38:21,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:38:21,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297832508] [2023-08-26 07:38:21,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:38:21,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:38:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:38:21,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:38:21,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:38:21,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297832508] [2023-08-26 07:38:21,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297832508] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:38:21,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:38:21,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-26 07:38:21,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427202597] [2023-08-26 07:38:21,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:38:21,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-26 07:38:21,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:38:21,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-26 07:38:21,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-26 07:38:21,808 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 361 [2023-08-26 07:38:21,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 338 transitions, 2396 flow. Second operand has 4 states, 4 states have (on average 156.75) internal successors, (627), 4 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:21,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:38:21,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 361 [2023-08-26 07:38:21,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:38:21,946 INFO L124 PetriNetUnfolderBase]: 123/618 cut-off events. [2023-08-26 07:38:21,947 INFO L125 PetriNetUnfolderBase]: For 1761/1761 co-relation queries the response was YES. [2023-08-26 07:38:21,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2061 conditions, 618 events. 123/618 cut-off events. For 1761/1761 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2956 event pairs, 68 based on Foata normal form. 83/680 useless extension candidates. Maximal degree in co-relation 2030. Up to 249 conditions per place. [2023-08-26 07:38:21,950 INFO L140 encePairwiseOnDemand]: 356/361 looper letters, 48 selfloop transitions, 5 changer transitions 0/85 dead transitions. [2023-08-26 07:38:21,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 85 transitions, 621 flow [2023-08-26 07:38:21,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-26 07:38:21,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-26 07:38:21,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 651 transitions. [2023-08-26 07:38:21,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45083102493074795 [2023-08-26 07:38:21,953 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 651 transitions. [2023-08-26 07:38:21,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 651 transitions. [2023-08-26 07:38:21,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:38:21,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 651 transitions. [2023-08-26 07:38:21,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 162.75) internal successors, (651), 4 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:21,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 361.0) internal successors, (1805), 5 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:21,957 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 361.0) internal successors, (1805), 5 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:21,957 INFO L175 Difference]: Start difference. First operand has 132 places, 338 transitions, 2396 flow. Second operand 4 states and 651 transitions. [2023-08-26 07:38:21,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 85 transitions, 621 flow [2023-08-26 07:38:21,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 85 transitions, 409 flow, removed 71 selfloop flow, removed 27 redundant places. [2023-08-26 07:38:21,964 INFO L231 Difference]: Finished difference. Result has 98 places, 85 transitions, 323 flow [2023-08-26 07:38:21,964 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=323, PETRI_PLACES=98, PETRI_TRANSITIONS=85} [2023-08-26 07:38:21,966 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 16 predicate places. [2023-08-26 07:38:21,966 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 85 transitions, 323 flow [2023-08-26 07:38:21,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 156.75) internal successors, (627), 4 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:21,967 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:38:21,967 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:38:21,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-26 07:38:21,967 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-26 07:38:21,968 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:38:21,968 INFO L85 PathProgramCache]: Analyzing trace with hash -807088443, now seen corresponding path program 1 times [2023-08-26 07:38:21,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:38:21,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984362974] [2023-08-26 07:38:21,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:38:21,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:38:21,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:38:22,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:38:22,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:38:22,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984362974] [2023-08-26 07:38:22,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984362974] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:38:22,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:38:22,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-26 07:38:22,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028223485] [2023-08-26 07:38:22,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:38:22,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-26 07:38:22,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:38:22,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-26 07:38:22,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-26 07:38:22,222 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 361 [2023-08-26 07:38:22,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 85 transitions, 323 flow. Second operand has 6 states, 6 states have (on average 124.5) internal successors, (747), 6 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:22,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:38:22,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 361 [2023-08-26 07:38:22,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:38:22,400 INFO L124 PetriNetUnfolderBase]: 288/792 cut-off events. [2023-08-26 07:38:22,400 INFO L125 PetriNetUnfolderBase]: For 293/293 co-relation queries the response was YES. [2023-08-26 07:38:22,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1998 conditions, 792 events. 288/792 cut-off events. For 293/293 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3135 event pairs, 201 based on Foata normal form. 0/767 useless extension candidates. Maximal degree in co-relation 1979. Up to 770 conditions per place. [2023-08-26 07:38:22,403 INFO L140 encePairwiseOnDemand]: 355/361 looper letters, 85 selfloop transitions, 6 changer transitions 0/92 dead transitions. [2023-08-26 07:38:22,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 92 transitions, 519 flow [2023-08-26 07:38:22,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-26 07:38:22,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-26 07:38:22,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 791 transitions. [2023-08-26 07:38:22,407 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3651892890120037 [2023-08-26 07:38:22,407 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 791 transitions. [2023-08-26 07:38:22,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 791 transitions. [2023-08-26 07:38:22,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:38:22,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 791 transitions. [2023-08-26 07:38:22,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 131.83333333333334) internal successors, (791), 6 states have internal predecessors, (791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:22,413 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:22,414 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 361.0) internal successors, (2527), 7 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:22,414 INFO L175 Difference]: Start difference. First operand has 98 places, 85 transitions, 323 flow. Second operand 6 states and 791 transitions. [2023-08-26 07:38:22,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 92 transitions, 519 flow [2023-08-26 07:38:22,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 92 transitions, 504 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-26 07:38:22,417 INFO L231 Difference]: Finished difference. Result has 98 places, 84 transitions, 318 flow [2023-08-26 07:38:22,418 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=318, PETRI_PLACES=98, PETRI_TRANSITIONS=84} [2023-08-26 07:38:22,418 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 16 predicate places. [2023-08-26 07:38:22,418 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 84 transitions, 318 flow [2023-08-26 07:38:22,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 124.5) internal successors, (747), 6 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:22,419 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:38:22,419 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:38:22,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-26 07:38:22,419 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-26 07:38:22,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:38:22,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1641088992, now seen corresponding path program 1 times [2023-08-26 07:38:22,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:38:22,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169323856] [2023-08-26 07:38:22,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:38:22,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:38:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:38:23,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:38:23,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:38:23,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169323856] [2023-08-26 07:38:23,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169323856] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:38:23,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:38:23,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-08-26 07:38:23,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896231351] [2023-08-26 07:38:23,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:38:23,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-08-26 07:38:23,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:38:23,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-08-26 07:38:23,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-08-26 07:38:23,227 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 361 [2023-08-26 07:38:23,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 84 transitions, 318 flow. Second operand has 11 states, 11 states have (on average 97.27272727272727) internal successors, (1070), 11 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:23,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:38:23,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 361 [2023-08-26 07:38:23,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:38:23,856 INFO L124 PetriNetUnfolderBase]: 312/906 cut-off events. [2023-08-26 07:38:23,856 INFO L125 PetriNetUnfolderBase]: For 340/340 co-relation queries the response was YES. [2023-08-26 07:38:23,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2278 conditions, 906 events. 312/906 cut-off events. For 340/340 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3720 event pairs, 116 based on Foata normal form. 0/880 useless extension candidates. Maximal degree in co-relation 2259. Up to 444 conditions per place. [2023-08-26 07:38:23,860 INFO L140 encePairwiseOnDemand]: 347/361 looper letters, 191 selfloop transitions, 16 changer transitions 0/208 dead transitions. [2023-08-26 07:38:23,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 208 transitions, 1114 flow [2023-08-26 07:38:23,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-08-26 07:38:23,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-08-26 07:38:23,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1319 transitions. [2023-08-26 07:38:23,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3044783010156971 [2023-08-26 07:38:23,864 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1319 transitions. [2023-08-26 07:38:23,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1319 transitions. [2023-08-26 07:38:23,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:38:23,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1319 transitions. [2023-08-26 07:38:23,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 109.91666666666667) internal successors, (1319), 12 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:23,872 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 361.0) internal successors, (4693), 13 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:23,873 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 361.0) internal successors, (4693), 13 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:23,873 INFO L175 Difference]: Start difference. First operand has 98 places, 84 transitions, 318 flow. Second operand 12 states and 1319 transitions. [2023-08-26 07:38:23,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 208 transitions, 1114 flow [2023-08-26 07:38:23,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 208 transitions, 1102 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-26 07:38:23,878 INFO L231 Difference]: Finished difference. Result has 113 places, 96 transitions, 440 flow [2023-08-26 07:38:23,878 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=440, PETRI_PLACES=113, PETRI_TRANSITIONS=96} [2023-08-26 07:38:23,879 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 31 predicate places. [2023-08-26 07:38:23,879 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 96 transitions, 440 flow [2023-08-26 07:38:23,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 97.27272727272727) internal successors, (1070), 11 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:23,880 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:38:23,880 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:38:23,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-26 07:38:23,880 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting workerErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-26 07:38:23,881 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:38:23,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1955742423, now seen corresponding path program 1 times [2023-08-26 07:38:23,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:38:23,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107809819] [2023-08-26 07:38:23,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:38:23,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:38:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:38:24,198 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:38:24,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:38:24,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107809819] [2023-08-26 07:38:24,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107809819] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-26 07:38:24,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-26 07:38:24,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-26 07:38:24,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177617925] [2023-08-26 07:38:24,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:38:24,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-08-26 07:38:24,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:38:24,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-08-26 07:38:24,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-08-26 07:38:24,201 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 361 [2023-08-26 07:38:24,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 96 transitions, 440 flow. Second operand has 5 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:24,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:38:24,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 361 [2023-08-26 07:38:24,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:38:24,398 INFO L124 PetriNetUnfolderBase]: 210/658 cut-off events. [2023-08-26 07:38:24,399 INFO L125 PetriNetUnfolderBase]: For 410/410 co-relation queries the response was YES. [2023-08-26 07:38:24,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1742 conditions, 658 events. 210/658 cut-off events. For 410/410 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2290 event pairs, 142 based on Foata normal form. 3/653 useless extension candidates. Maximal degree in co-relation 1714. Up to 500 conditions per place. [2023-08-26 07:38:24,401 INFO L140 encePairwiseOnDemand]: 355/361 looper letters, 76 selfloop transitions, 2 changer transitions 22/114 dead transitions. [2023-08-26 07:38:24,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 114 transitions, 689 flow [2023-08-26 07:38:24,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-26 07:38:24,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-26 07:38:24,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 696 transitions. [2023-08-26 07:38:24,404 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.385595567867036 [2023-08-26 07:38:24,404 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 696 transitions. [2023-08-26 07:38:24,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 696 transitions. [2023-08-26 07:38:24,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:38:24,404 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 696 transitions. [2023-08-26 07:38:24,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 139.2) internal successors, (696), 5 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:24,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 361.0) internal successors, (2166), 6 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:24,408 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 361.0) internal successors, (2166), 6 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:24,408 INFO L175 Difference]: Start difference. First operand has 113 places, 96 transitions, 440 flow. Second operand 5 states and 696 transitions. [2023-08-26 07:38:24,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 114 transitions, 689 flow [2023-08-26 07:38:24,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 114 transitions, 667 flow, removed 9 selfloop flow, removed 1 redundant places. [2023-08-26 07:38:24,413 INFO L231 Difference]: Finished difference. Result has 118 places, 91 transitions, 384 flow [2023-08-26 07:38:24,413 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=384, PETRI_PLACES=118, PETRI_TRANSITIONS=91} [2023-08-26 07:38:24,414 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 36 predicate places. [2023-08-26 07:38:24,414 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 91 transitions, 384 flow [2023-08-26 07:38:24,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:24,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:38:24,414 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:38:24,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-26 07:38:24,415 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting workerErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-26 07:38:24,415 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:38:24,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1970855371, now seen corresponding path program 2 times [2023-08-26 07:38:24,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:38:24,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328534513] [2023-08-26 07:38:24,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:38:24,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:38:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:38:25,249 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:38:25,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:38:25,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328534513] [2023-08-26 07:38:25,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328534513] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 07:38:25,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711610292] [2023-08-26 07:38:25,250 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 07:38:25,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:38:25,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:38:25,257 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 07:38:25,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-08-26 07:38:25,610 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-26 07:38:25,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 07:38:25,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 60 conjunts are in the unsatisfiable core [2023-08-26 07:38:25,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:38:25,694 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2023-08-26 07:38:25,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:38:25,717 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 07:38:25,961 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-08-26 07:38:26,230 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2023-08-26 07:38:26,370 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:38:26,371 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 07:38:26,898 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:38:26,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711610292] provided 1 perfect and 1 imperfect interpolant sequences [2023-08-26 07:38:26,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-08-26 07:38:26,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15, 12] total 37 [2023-08-26 07:38:26,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680144612] [2023-08-26 07:38:26,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-26 07:38:26,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-08-26 07:38:26,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:38:26,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-08-26 07:38:26,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=1168, Unknown=0, NotChecked=0, Total=1406 [2023-08-26 07:38:26,902 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 361 [2023-08-26 07:38:26,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 91 transitions, 384 flow. Second operand has 13 states, 13 states have (on average 102.3076923076923) internal successors, (1330), 13 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:26,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:38:26,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 361 [2023-08-26 07:38:26,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:38:27,864 INFO L124 PetriNetUnfolderBase]: 239/783 cut-off events. [2023-08-26 07:38:27,864 INFO L125 PetriNetUnfolderBase]: For 408/408 co-relation queries the response was YES. [2023-08-26 07:38:27,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2112 conditions, 783 events. 239/783 cut-off events. For 408/408 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3024 event pairs, 39 based on Foata normal form. 4/775 useless extension candidates. Maximal degree in co-relation 2082. Up to 313 conditions per place. [2023-08-26 07:38:27,868 INFO L140 encePairwiseOnDemand]: 348/361 looper letters, 148 selfloop transitions, 25 changer transitions 1/175 dead transitions. [2023-08-26 07:38:27,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 175 transitions, 1029 flow [2023-08-26 07:38:27,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-08-26 07:38:27,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2023-08-26 07:38:27,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1625 transitions. [2023-08-26 07:38:27,873 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.30009233610341646 [2023-08-26 07:38:27,873 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1625 transitions. [2023-08-26 07:38:27,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1625 transitions. [2023-08-26 07:38:27,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:38:27,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1625 transitions. [2023-08-26 07:38:27,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 108.33333333333333) internal successors, (1625), 15 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:27,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 361.0) internal successors, (5776), 16 states have internal predecessors, (5776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:27,885 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 361.0) internal successors, (5776), 16 states have internal predecessors, (5776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:27,885 INFO L175 Difference]: Start difference. First operand has 118 places, 91 transitions, 384 flow. Second operand 15 states and 1625 transitions. [2023-08-26 07:38:27,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 175 transitions, 1029 flow [2023-08-26 07:38:27,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 175 transitions, 1007 flow, removed 8 selfloop flow, removed 7 redundant places. [2023-08-26 07:38:27,891 INFO L231 Difference]: Finished difference. Result has 128 places, 103 transitions, 531 flow [2023-08-26 07:38:27,891 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=531, PETRI_PLACES=128, PETRI_TRANSITIONS=103} [2023-08-26 07:38:27,891 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 46 predicate places. [2023-08-26 07:38:27,892 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 103 transitions, 531 flow [2023-08-26 07:38:27,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 102.3076923076923) internal successors, (1330), 13 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:27,892 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:38:27,893 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:38:27,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-08-26 07:38:28,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-08-26 07:38:28,100 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting workerErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-26 07:38:28,101 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:38:28,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1903760798, now seen corresponding path program 1 times [2023-08-26 07:38:28,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:38:28,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720079339] [2023-08-26 07:38:28,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:38:28,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:38:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:38:29,238 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:38:29,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:38:29,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720079339] [2023-08-26 07:38:29,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720079339] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 07:38:29,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861924443] [2023-08-26 07:38:29,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:38:29,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:38:29,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:38:29,241 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 07:38:29,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-08-26 07:38:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:38:29,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 81 conjunts are in the unsatisfiable core [2023-08-26 07:38:29,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:38:29,470 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2023-08-26 07:38:29,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-08-26 07:38:29,475 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2023-08-26 07:38:29,731 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-08-26 07:38:30,245 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-08-26 07:38:30,372 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:38:30,372 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 07:38:30,964 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:38:30,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861924443] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 07:38:30,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 07:38:30,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 14] total 39 [2023-08-26 07:38:30,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752489063] [2023-08-26 07:38:30,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 07:38:30,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-08-26 07:38:30,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:38:30,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-08-26 07:38:30,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=1407, Unknown=0, NotChecked=0, Total=1640 [2023-08-26 07:38:30,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 361 [2023-08-26 07:38:30,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 103 transitions, 531 flow. Second operand has 41 states, 41 states have (on average 88.85365853658537) internal successors, (3643), 41 states have internal predecessors, (3643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:30,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:38:30,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 361 [2023-08-26 07:38:30,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:38:33,067 INFO L124 PetriNetUnfolderBase]: 399/1285 cut-off events. [2023-08-26 07:38:33,067 INFO L125 PetriNetUnfolderBase]: For 1016/1016 co-relation queries the response was YES. [2023-08-26 07:38:33,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3641 conditions, 1285 events. 399/1285 cut-off events. For 1016/1016 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 5442 event pairs, 142 based on Foata normal form. 12/1277 useless extension candidates. Maximal degree in co-relation 3609. Up to 545 conditions per place. [2023-08-26 07:38:33,072 INFO L140 encePairwiseOnDemand]: 341/361 looper letters, 210 selfloop transitions, 34 changer transitions 30/275 dead transitions. [2023-08-26 07:38:33,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 275 transitions, 1757 flow [2023-08-26 07:38:33,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-08-26 07:38:33,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2023-08-26 07:38:33,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 2422 transitions. [2023-08-26 07:38:33,082 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.25804389516300874 [2023-08-26 07:38:33,082 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 2422 transitions. [2023-08-26 07:38:33,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 2422 transitions. [2023-08-26 07:38:33,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:38:33,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 2422 transitions. [2023-08-26 07:38:33,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 93.15384615384616) internal successors, (2422), 26 states have internal predecessors, (2422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:33,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 361.0) internal successors, (9747), 27 states have internal predecessors, (9747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:33,103 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 361.0) internal successors, (9747), 27 states have internal predecessors, (9747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:33,103 INFO L175 Difference]: Start difference. First operand has 128 places, 103 transitions, 531 flow. Second operand 26 states and 2422 transitions. [2023-08-26 07:38:33,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 275 transitions, 1757 flow [2023-08-26 07:38:33,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 275 transitions, 1713 flow, removed 17 selfloop flow, removed 5 redundant places. [2023-08-26 07:38:33,113 INFO L231 Difference]: Finished difference. Result has 159 places, 121 transitions, 735 flow [2023-08-26 07:38:33,113 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=505, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=735, PETRI_PLACES=159, PETRI_TRANSITIONS=121} [2023-08-26 07:38:33,114 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 77 predicate places. [2023-08-26 07:38:33,114 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 121 transitions, 735 flow [2023-08-26 07:38:33,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 88.85365853658537) internal successors, (3643), 41 states have internal predecessors, (3643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:33,115 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:38:33,116 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:38:33,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-08-26 07:38:33,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-08-26 07:38:33,322 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting workerErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-26 07:38:33,322 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:38:33,322 INFO L85 PathProgramCache]: Analyzing trace with hash -280472207, now seen corresponding path program 2 times [2023-08-26 07:38:33,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:38:33,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593032351] [2023-08-26 07:38:33,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:38:33,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:38:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:38:35,263 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-26 07:38:35,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:38:35,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593032351] [2023-08-26 07:38:35,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593032351] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 07:38:35,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132986022] [2023-08-26 07:38:35,264 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-08-26 07:38:35,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:38:35,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:38:35,265 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 07:38:35,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-08-26 07:38:35,591 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-08-26 07:38:35,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 07:38:35,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 37 conjunts are in the unsatisfiable core [2023-08-26 07:38:35,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:38:36,109 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2023-08-26 07:38:36,294 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-08-26 07:38:36,328 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 07:38:36,328 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 07:38:36,788 INFO L322 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-08-26 07:38:36,788 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 32 [2023-08-26 07:38:36,818 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 07:38:36,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132986022] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 07:38:36,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 07:38:36,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10, 10] total 39 [2023-08-26 07:38:36,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562712230] [2023-08-26 07:38:36,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 07:38:36,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-08-26 07:38:36,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:38:36,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-08-26 07:38:36,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1377, Unknown=0, NotChecked=0, Total=1560 [2023-08-26 07:38:36,823 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 361 [2023-08-26 07:38:36,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 121 transitions, 735 flow. Second operand has 40 states, 40 states have (on average 99.475) internal successors, (3979), 40 states have internal predecessors, (3979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:36,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:38:36,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 361 [2023-08-26 07:38:36,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:38:39,330 INFO L124 PetriNetUnfolderBase]: 515/1677 cut-off events. [2023-08-26 07:38:39,330 INFO L125 PetriNetUnfolderBase]: For 1719/1719 co-relation queries the response was YES. [2023-08-26 07:38:39,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5078 conditions, 1677 events. 515/1677 cut-off events. For 1719/1719 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 7990 event pairs, 36 based on Foata normal form. 12/1669 useless extension candidates. Maximal degree in co-relation 5035. Up to 446 conditions per place. [2023-08-26 07:38:39,337 INFO L140 encePairwiseOnDemand]: 343/361 looper letters, 290 selfloop transitions, 62 changer transitions 32/385 dead transitions. [2023-08-26 07:38:39,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 385 transitions, 2619 flow [2023-08-26 07:38:39,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-08-26 07:38:39,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2023-08-26 07:38:39,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 3717 transitions. [2023-08-26 07:38:39,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.28601108033240996 [2023-08-26 07:38:39,344 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 3717 transitions. [2023-08-26 07:38:39,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 3717 transitions. [2023-08-26 07:38:39,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:38:39,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 3717 transitions. [2023-08-26 07:38:39,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 103.25) internal successors, (3717), 36 states have internal predecessors, (3717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:39,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 361.0) internal successors, (13357), 37 states have internal predecessors, (13357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:39,370 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 361.0) internal successors, (13357), 37 states have internal predecessors, (13357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:39,370 INFO L175 Difference]: Start difference. First operand has 159 places, 121 transitions, 735 flow. Second operand 36 states and 3717 transitions. [2023-08-26 07:38:39,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 385 transitions, 2619 flow [2023-08-26 07:38:39,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 385 transitions, 2551 flow, removed 23 selfloop flow, removed 11 redundant places. [2023-08-26 07:38:39,386 INFO L231 Difference]: Finished difference. Result has 195 places, 149 transitions, 1107 flow [2023-08-26 07:38:39,387 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=1107, PETRI_PLACES=195, PETRI_TRANSITIONS=149} [2023-08-26 07:38:39,387 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 113 predicate places. [2023-08-26 07:38:39,387 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 149 transitions, 1107 flow [2023-08-26 07:38:39,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 99.475) internal successors, (3979), 40 states have internal predecessors, (3979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:39,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 07:38:39,389 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:38:39,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-08-26 07:38:39,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:38:39,597 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting workerErr2ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-08-26 07:38:39,597 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 07:38:39,597 INFO L85 PathProgramCache]: Analyzing trace with hash -2084525310, now seen corresponding path program 3 times [2023-08-26 07:38:39,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 07:38:39,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481781040] [2023-08-26 07:38:39,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 07:38:39,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 07:38:39,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-26 07:38:41,330 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 41 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 07:38:41,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-26 07:38:41,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481781040] [2023-08-26 07:38:41,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481781040] provided 0 perfect and 1 imperfect interpolant sequences [2023-08-26 07:38:41,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381172008] [2023-08-26 07:38:41,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-08-26 07:38:41,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-08-26 07:38:41,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 07:38:41,331 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-08-26 07:38:41,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-08-26 07:38:41,689 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-08-26 07:38:41,689 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-08-26 07:38:41,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 42 conjunts are in the unsatisfiable core [2023-08-26 07:38:41,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-08-26 07:38:42,121 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2023-08-26 07:38:42,352 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2023-08-26 07:38:42,426 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-08-26 07:38:42,446 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 41 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 07:38:42,447 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-08-26 07:38:42,867 INFO L322 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2023-08-26 07:38:42,867 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 36 [2023-08-26 07:38:42,889 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 41 proven. 6 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-08-26 07:38:42,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381172008] provided 0 perfect and 2 imperfect interpolant sequences [2023-08-26 07:38:42,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-08-26 07:38:42,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 13] total 40 [2023-08-26 07:38:42,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982170179] [2023-08-26 07:38:42,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-08-26 07:38:42,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-08-26 07:38:42,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-26 07:38:42,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-08-26 07:38:42,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=1311, Unknown=0, NotChecked=0, Total=1560 [2023-08-26 07:38:42,894 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 361 [2023-08-26 07:38:42,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 149 transitions, 1107 flow. Second operand has 40 states, 40 states have (on average 98.175) internal successors, (3927), 40 states have internal predecessors, (3927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:42,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-26 07:38:42,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 361 [2023-08-26 07:38:42,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-26 07:38:44,515 INFO L124 PetriNetUnfolderBase]: 468/1585 cut-off events. [2023-08-26 07:38:44,515 INFO L125 PetriNetUnfolderBase]: For 2452/2452 co-relation queries the response was YES. [2023-08-26 07:38:44,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5102 conditions, 1585 events. 468/1585 cut-off events. For 2452/2452 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 7698 event pairs, 62 based on Foata normal form. 4/1569 useless extension candidates. Maximal degree in co-relation 5047. Up to 610 conditions per place. [2023-08-26 07:38:44,521 INFO L140 encePairwiseOnDemand]: 343/361 looper letters, 0 selfloop transitions, 0 changer transitions 203/203 dead transitions. [2023-08-26 07:38:44,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 203 transitions, 1768 flow [2023-08-26 07:38:44,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-08-26 07:38:44,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-08-26 07:38:44,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 2611 transitions. [2023-08-26 07:38:44,525 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2678772955781266 [2023-08-26 07:38:44,525 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 2611 transitions. [2023-08-26 07:38:44,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 2611 transitions. [2023-08-26 07:38:44,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-26 07:38:44,527 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 2611 transitions. [2023-08-26 07:38:44,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 96.70370370370371) internal successors, (2611), 27 states have internal predecessors, (2611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:44,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 361.0) internal successors, (10108), 28 states have internal predecessors, (10108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:44,540 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 361.0) internal successors, (10108), 28 states have internal predecessors, (10108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:44,540 INFO L175 Difference]: Start difference. First operand has 195 places, 149 transitions, 1107 flow. Second operand 27 states and 2611 transitions. [2023-08-26 07:38:44,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 203 transitions, 1768 flow [2023-08-26 07:38:44,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 203 transitions, 1595 flow, removed 40 selfloop flow, removed 22 redundant places. [2023-08-26 07:38:44,557 INFO L231 Difference]: Finished difference. Result has 188 places, 0 transitions, 0 flow [2023-08-26 07:38:44,557 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=361, PETRI_DIFFERENCE_MINUEND_FLOW=909, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=0, PETRI_PLACES=188, PETRI_TRANSITIONS=0} [2023-08-26 07:38:44,558 INFO L281 CegarLoopForPetriNet]: 82 programPoint places, 106 predicate places. [2023-08-26 07:38:44,558 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 0 transitions, 0 flow [2023-08-26 07:38:44,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 98.175) internal successors, (3927), 40 states have internal predecessors, (3927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-26 07:38:44,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 21 remaining) [2023-08-26 07:38:44,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2023-08-26 07:38:44,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2023-08-26 07:38:44,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2023-08-26 07:38:44,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 21 remaining) [2023-08-26 07:38:44,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2023-08-26 07:38:44,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2023-08-26 07:38:44,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2023-08-26 07:38:44,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONASSERT (12 of 21 remaining) [2023-08-26 07:38:44,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr5ASSERT_VIOLATIONDATA_RACE (11 of 21 remaining) [2023-08-26 07:38:44,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONASSERT (10 of 21 remaining) [2023-08-26 07:38:44,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr6ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2023-08-26 07:38:44,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr7ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2023-08-26 07:38:44,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2023-08-26 07:38:44,563 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2023-08-26 07:38:44,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2023-08-26 07:38:44,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONASSERT (4 of 21 remaining) [2023-08-26 07:38:44,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr5ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2023-08-26 07:38:44,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONASSERT (2 of 21 remaining) [2023-08-26 07:38:44,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr6ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2023-08-26 07:38:44,564 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr7ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2023-08-26 07:38:44,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-08-26 07:38:44,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-08-26 07:38:44,773 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-26 07:38:44,777 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-26 07:38:44,777 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-26 07:38:44,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 07:38:44 BasicIcfg [2023-08-26 07:38:44,780 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-26 07:38:44,780 INFO L158 Benchmark]: Toolchain (without parser) took 41607.59ms. Allocated memory was 408.9MB in the beginning and 2.4GB in the end (delta: 2.0GB). Free memory was 383.9MB in the beginning and 1.5GB in the end (delta: -1.1GB). Peak memory consumption was 939.7MB. Max. memory is 16.0GB. [2023-08-26 07:38:44,780 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 408.9MB. Free memory is still 385.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-26 07:38:44,781 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.34ms. Allocated memory is still 408.9MB. Free memory was 383.9MB in the beginning and 363.4MB in the end (delta: 20.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-26 07:38:44,781 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.06ms. Allocated memory is still 408.9MB. Free memory was 363.4MB in the beginning and 360.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-26 07:38:44,781 INFO L158 Benchmark]: Boogie Preprocessor took 31.74ms. Allocated memory is still 408.9MB. Free memory was 360.3MB in the beginning and 357.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-26 07:38:44,781 INFO L158 Benchmark]: RCFGBuilder took 482.65ms. Allocated memory is still 408.9MB. Free memory was 357.7MB in the beginning and 385.3MB in the end (delta: -27.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. [2023-08-26 07:38:44,782 INFO L158 Benchmark]: TraceAbstraction took 40630.93ms. Allocated memory was 408.9MB in the beginning and 2.4GB in the end (delta: 2.0GB). Free memory was 384.3MB in the beginning and 1.5GB in the end (delta: -1.1GB). Peak memory consumption was 939.6MB. Max. memory is 16.0GB. [2023-08-26 07:38:44,783 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 408.9MB. Free memory is still 385.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 409.34ms. Allocated memory is still 408.9MB. Free memory was 383.9MB in the beginning and 363.4MB in the end (delta: 20.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 47.06ms. Allocated memory is still 408.9MB. Free memory was 363.4MB in the beginning and 360.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 31.74ms. Allocated memory is still 408.9MB. Free memory was 360.3MB in the beginning and 357.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 482.65ms. Allocated memory is still 408.9MB. Free memory was 357.7MB in the beginning and 385.3MB in the end (delta: -27.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.0GB. * TraceAbstraction took 40630.93ms. Allocated memory was 408.9MB in the beginning and 2.4GB in the end (delta: 2.0GB). Free memory was 384.3MB in the beginning and 1.5GB in the end (delta: -1.1GB). Peak memory consumption was 939.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 232]: Unsoundness Warning unspecified type, defaulting to int C: short [232] - GenericResultAtLocation [Line: 233]: Unsoundness Warning unspecified type, defaulting to int C: short [233] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.9s, 194 PlacesBefore, 82 PlacesAfterwards, 202 TransitionsBefore, 86 TransitionsAfterwards, 11424 CoEnabledTransitionPairs, 7 FixpointIterations, 45 TrivialSequentialCompositions, 82 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 27 ConcurrentYvCompositions, 4 ChoiceCompositions, 158 TotalNumberOfCompositions, 54553 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10913, independent: 9794, independent conditional: 0, independent unconditional: 9794, dependent: 1119, dependent conditional: 0, dependent unconditional: 1119, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5491, independent: 5381, independent conditional: 0, independent unconditional: 5381, dependent: 110, dependent conditional: 0, dependent unconditional: 110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10913, independent: 4413, independent conditional: 0, independent unconditional: 4413, dependent: 1009, dependent conditional: 0, dependent unconditional: 1009, unknown: 5491, unknown conditional: 0, unknown unconditional: 5491] , Statistics on independence cache: Total cache size (in pairs): 373, Positive cache size: 298, Positive conditional cache size: 0, Positive unconditional cache size: 298, Negative cache size: 75, Negative conditional cache size: 0, Negative unconditional cache size: 75, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 707]: 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: 715]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 715]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 726]: 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: 18]: assertion always holds For all program executions holds that assertion always holds 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: 18]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: 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 3 procedures, 287 locations, 21 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: 40.4s, OverallIterations: 15, TraceHistogramMax: 3, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 17.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2759 SdHoareTripleChecker+Valid, 6.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2759 mSDsluCounter, 725 SdHoareTripleChecker+Invalid, 5.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 515 mSDsCounter, 307 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11413 IncrementalHoareTripleChecker+Invalid, 11720 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 307 mSolverCounterUnsat, 210 mSDtfsCounter, 11413 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 868 GetRequests, 583 SyntacticMatches, 4 SemanticMatches, 281 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3584 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2464occurred in iteration=6, InterpolantAutomatonStates: 168, 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: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 14.0s InterpolantComputationTime, 894 NumberOfCodeBlocks, 874 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1195 ConstructedInterpolants, 87 QuantifiedInterpolants, 15415 SizeOfPredicates, 89 NumberOfNonLiveVariables, 2031 ConjunctsInSsa, 220 ConjunctsInUnsatCore, 23 InterpolantComputations, 12 PerfectInterpolantSequences, 273/370 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-26 07:38:44,809 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...