/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-atomic/lamport-b.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 07:54:46,233 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 07:54:46,297 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 07:54:46,301 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 07:54:46,302 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 07:54:46,320 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 07:54:46,321 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 07:54:46,321 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 07:54:46,322 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 07:54:46,322 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 07:54:46,322 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 07:54:46,323 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 07:54:46,323 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 07:54:46,324 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 07:54:46,324 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 07:54:46,324 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 07:54:46,325 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 07:54:46,325 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 07:54:46,325 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 07:54:46,326 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 07:54:46,326 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 07:54:46,326 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 07:54:46,327 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 07:54:46,327 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 07:54:46,327 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 07:54:46,328 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 07:54:46,328 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 07:54:46,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 07:54:46,329 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 07:54:46,329 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 07:54:46,330 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 07:54:46,330 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 07:54:46,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 07:54:46,331 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 07:54:46,331 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 07:54:46,331 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 07:54:46,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 07:54:46,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 07:54:46,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 07:54:46,664 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 07:54:46,668 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 07:54:46,671 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport-b.i [2023-08-25 07:54:47,881 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 07:54:48,122 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 07:54:48,123 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport-b.i [2023-08-25 07:54:48,141 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a2ab2f4b/88cd21737fd54d9e8008bb52b760efc8/FLAG529025f41 [2023-08-25 07:54:48,153 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a2ab2f4b/88cd21737fd54d9e8008bb52b760efc8 [2023-08-25 07:54:48,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 07:54:48,157 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 07:54:48,158 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 07:54:48,158 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 07:54:48,160 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 07:54:48,161 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:54:48" (1/1) ... [2023-08-25 07:54:48,162 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ece3c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:54:48, skipping insertion in model container [2023-08-25 07:54:48,162 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:54:48" (1/1) ... [2023-08-25 07:54:48,211 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 07:54:48,537 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 07:54:48,546 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 07:54:48,576 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [249] [2023-08-25 07:54:48,579 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [249] [2023-08-25 07:54:48,605 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 07:54:48,642 INFO L206 MainTranslator]: Completed translation [2023-08-25 07:54:48,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:54:48 WrapperNode [2023-08-25 07:54:48,644 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 07:54:48,645 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 07:54:48,645 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 07:54:48,645 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 07:54:48,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:54:48" (1/1) ... [2023-08-25 07:54:48,683 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:54:48" (1/1) ... [2023-08-25 07:54:48,712 INFO L138 Inliner]: procedures = 167, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 226 [2023-08-25 07:54:48,712 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 07:54:48,713 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 07:54:48,713 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 07:54:48,713 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 07:54:48,720 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:54:48" (1/1) ... [2023-08-25 07:54:48,721 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:54:48" (1/1) ... [2023-08-25 07:54:48,726 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:54:48" (1/1) ... [2023-08-25 07:54:48,726 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:54:48" (1/1) ... [2023-08-25 07:54:48,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:54:48" (1/1) ... [2023-08-25 07:54:48,751 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:54:48" (1/1) ... [2023-08-25 07:54:48,753 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:54:48" (1/1) ... [2023-08-25 07:54:48,754 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:54:48" (1/1) ... [2023-08-25 07:54:48,773 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 07:54:48,773 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 07:54:48,774 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 07:54:48,774 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 07:54:48,774 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:54:48" (1/1) ... [2023-08-25 07:54:48,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 07:54:48,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 07:54:48,810 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-25 07:54:48,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-25 07:54:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 07:54:48,843 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-08-25 07:54:48,844 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-08-25 07:54:48,844 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-25 07:54:48,845 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-25 07:54:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 07:54:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 07:54:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 07:54:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 07:54:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 07:54:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 07:54:48,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 07:54:48,847 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 07:54:48,990 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 07:54:48,992 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 07:54:49,226 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 07:54:49,233 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 07:54:49,234 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-08-25 07:54:49,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:54:49 BoogieIcfgContainer [2023-08-25 07:54:49,235 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 07:54:49,237 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 07:54:49,237 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 07:54:49,240 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 07:54:49,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:54:48" (1/3) ... [2023-08-25 07:54:49,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72049885 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:54:49, skipping insertion in model container [2023-08-25 07:54:49,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:54:48" (2/3) ... [2023-08-25 07:54:49,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72049885 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:54:49, skipping insertion in model container [2023-08-25 07:54:49,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:54:49" (3/3) ... [2023-08-25 07:54:49,242 INFO L112 eAbstractionObserver]: Analyzing ICFG lamport-b.i [2023-08-25 07:54:49,256 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 07:54:49,256 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2023-08-25 07:54:49,256 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 07:54:49,361 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-25 07:54:49,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 236 places, 255 transitions, 526 flow [2023-08-25 07:54:49,470 INFO L124 PetriNetUnfolderBase]: 26/253 cut-off events. [2023-08-25 07:54:49,470 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 07:54:49,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 253 events. 26/253 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 796 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 219. Up to 5 conditions per place. [2023-08-25 07:54:49,483 INFO L82 GeneralOperation]: Start removeDead. Operand has 236 places, 255 transitions, 526 flow [2023-08-25 07:54:49,522 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 225 places, 244 transitions, 497 flow [2023-08-25 07:54:49,525 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 07:54:49,536 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 225 places, 244 transitions, 497 flow [2023-08-25 07:54:49,539 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 225 places, 244 transitions, 497 flow [2023-08-25 07:54:49,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 225 places, 244 transitions, 497 flow [2023-08-25 07:54:49,640 INFO L124 PetriNetUnfolderBase]: 26/244 cut-off events. [2023-08-25 07:54:49,640 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-08-25 07:54:49,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 244 events. 26/244 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 802 event pairs, 0 based on Foata normal form. 0/184 useless extension candidates. Maximal degree in co-relation 219. Up to 5 conditions per place. [2023-08-25 07:54:49,660 INFO L119 LiptonReduction]: Number of co-enabled transitions 26600 [2023-08-25 07:54:51,958 INFO L134 LiptonReduction]: Checked pairs total: 138598 [2023-08-25 07:54:51,958 INFO L136 LiptonReduction]: Total number of compositions: 113 [2023-08-25 07:54:51,970 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-25 07:54:51,976 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;@463c5f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 07:54:51,976 INFO L358 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2023-08-25 07:54:51,979 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 07:54:51,979 INFO L124 PetriNetUnfolderBase]: 2/12 cut-off events. [2023-08-25 07:54:51,980 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 07:54:51,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:54:51,980 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-25 07:54:51,981 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-25 07:54:51,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:54:51,985 INFO L85 PathProgramCache]: Analyzing trace with hash 916450334, now seen corresponding path program 1 times [2023-08-25 07:54:51,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:54:51,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927010437] [2023-08-25 07:54:51,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:54:51,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:54:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:54:52,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:54:52,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:54:52,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927010437] [2023-08-25 07:54:52,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927010437] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:54:52,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:54:52,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-25 07:54:52,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533649855] [2023-08-25 07:54:52,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:54:52,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-25 07:54:52,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:54:52,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-25 07:54:52,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-25 07:54:52,176 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 368 [2023-08-25 07:54:52,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 163 transitions, 335 flow. Second operand has 2 states, 2 states have (on average 237.5) internal successors, (475), 2 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:52,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:54:52,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 368 [2023-08-25 07:54:52,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:54:52,618 INFO L124 PetriNetUnfolderBase]: 1619/4764 cut-off events. [2023-08-25 07:54:52,619 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2023-08-25 07:54:52,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7044 conditions, 4764 events. 1619/4764 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 40123 event pairs, 1257 based on Foata normal form. 331/4238 useless extension candidates. Maximal degree in co-relation 6858. Up to 2213 conditions per place. [2023-08-25 07:54:52,654 INFO L140 encePairwiseOnDemand]: 352/368 looper letters, 46 selfloop transitions, 0 changer transitions 0/144 dead transitions. [2023-08-25 07:54:52,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 144 transitions, 389 flow [2023-08-25 07:54:52,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-25 07:54:52,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-25 07:54:52,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 532 transitions. [2023-08-25 07:54:52,668 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7228260869565217 [2023-08-25 07:54:52,669 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 532 transitions. [2023-08-25 07:54:52,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 532 transitions. [2023-08-25 07:54:52,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:54:52,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 532 transitions. [2023-08-25 07:54:52,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 266.0) internal successors, (532), 2 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:52,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 368.0) internal successors, (1104), 3 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:52,682 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 368.0) internal successors, (1104), 3 states have internal predecessors, (1104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:52,684 INFO L175 Difference]: Start difference. First operand has 144 places, 163 transitions, 335 flow. Second operand 2 states and 532 transitions. [2023-08-25 07:54:52,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 144 transitions, 389 flow [2023-08-25 07:54:52,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 144 transitions, 384 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-25 07:54:52,692 INFO L231 Difference]: Finished difference. Result has 137 places, 144 transitions, 292 flow [2023-08-25 07:54:52,694 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=292, PETRI_PLACES=137, PETRI_TRANSITIONS=144} [2023-08-25 07:54:52,697 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -7 predicate places. [2023-08-25 07:54:52,698 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 144 transitions, 292 flow [2023-08-25 07:54:52,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 237.5) internal successors, (475), 2 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:52,698 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:54:52,698 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-25 07:54:52,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 07:54:52,699 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-25 07:54:52,699 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:54:52,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1657555410, now seen corresponding path program 1 times [2023-08-25 07:54:52,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:54:52,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279350417] [2023-08-25 07:54:52,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:54:52,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:54:52,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:54:52,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:54:52,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:54:52,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279350417] [2023-08-25 07:54:52,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279350417] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:54:52,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:54:52,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:54:52,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599663948] [2023-08-25 07:54:52,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:54:52,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:54:52,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:54:52,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:54:52,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:54:52,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 368 [2023-08-25 07:54:52,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 144 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:52,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:54:52,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 368 [2023-08-25 07:54:52,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:54:53,253 INFO L124 PetriNetUnfolderBase]: 2467/6184 cut-off events. [2023-08-25 07:54:53,253 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 07:54:53,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9794 conditions, 6184 events. 2467/6184 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 50256 event pairs, 1821 based on Foata normal form. 0/4966 useless extension candidates. Maximal degree in co-relation 9791. Up to 3283 conditions per place. [2023-08-25 07:54:53,303 INFO L140 encePairwiseOnDemand]: 363/368 looper letters, 79 selfloop transitions, 4 changer transitions 0/171 dead transitions. [2023-08-25 07:54:53,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 171 transitions, 514 flow [2023-08-25 07:54:53,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:54:53,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:54:53,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 738 transitions. [2023-08-25 07:54:53,306 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6684782608695652 [2023-08-25 07:54:53,306 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 738 transitions. [2023-08-25 07:54:53,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 738 transitions. [2023-08-25 07:54:53,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:54:53,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 738 transitions. [2023-08-25 07:54:53,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 246.0) internal successors, (738), 3 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:53,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:53,312 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:53,312 INFO L175 Difference]: Start difference. First operand has 137 places, 144 transitions, 292 flow. Second operand 3 states and 738 transitions. [2023-08-25 07:54:53,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 171 transitions, 514 flow [2023-08-25 07:54:53,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 171 transitions, 514 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-25 07:54:53,317 INFO L231 Difference]: Finished difference. Result has 141 places, 147 transitions, 322 flow [2023-08-25 07:54:53,317 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=141, PETRI_TRANSITIONS=147} [2023-08-25 07:54:53,318 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -3 predicate places. [2023-08-25 07:54:53,318 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 147 transitions, 322 flow [2023-08-25 07:54:53,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:53,319 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:54:53,319 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:54:53,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 07:54:53,319 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-25 07:54:53,320 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:54:53,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1136795139, now seen corresponding path program 1 times [2023-08-25 07:54:53,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:54:53,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824749222] [2023-08-25 07:54:53,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:54:53,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:54:53,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:54:53,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:54:53,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:54:53,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824749222] [2023-08-25 07:54:53,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824749222] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:54:53,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:54:53,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:54:53,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806743995] [2023-08-25 07:54:53,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:54:53,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:54:53,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:54:53,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:54:53,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:54:53,383 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 368 [2023-08-25 07:54:53,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 147 transitions, 322 flow. Second operand has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 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) [2023-08-25 07:54:53,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:54:53,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 368 [2023-08-25 07:54:53,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:54:53,859 INFO L124 PetriNetUnfolderBase]: 2516/6374 cut-off events. [2023-08-25 07:54:53,859 INFO L125 PetriNetUnfolderBase]: For 383/432 co-relation queries the response was YES. [2023-08-25 07:54:53,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10448 conditions, 6374 events. 2516/6374 cut-off events. For 383/432 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 52834 event pairs, 1802 based on Foata normal form. 0/5110 useless extension candidates. Maximal degree in co-relation 10443. Up to 3366 conditions per place. [2023-08-25 07:54:53,909 INFO L140 encePairwiseOnDemand]: 363/368 looper letters, 81 selfloop transitions, 4 changer transitions 0/176 dead transitions. [2023-08-25 07:54:53,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 176 transitions, 561 flow [2023-08-25 07:54:53,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:54:53,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:54:53,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 738 transitions. [2023-08-25 07:54:53,912 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6684782608695652 [2023-08-25 07:54:53,912 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 738 transitions. [2023-08-25 07:54:53,912 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 738 transitions. [2023-08-25 07:54:53,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:54:53,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 738 transitions. [2023-08-25 07:54:53,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 246.0) internal successors, (738), 3 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:53,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:53,917 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:53,917 INFO L175 Difference]: Start difference. First operand has 141 places, 147 transitions, 322 flow. Second operand 3 states and 738 transitions. [2023-08-25 07:54:53,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 176 transitions, 561 flow [2023-08-25 07:54:53,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 176 transitions, 549 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 07:54:53,922 INFO L231 Difference]: Finished difference. Result has 143 places, 150 transitions, 344 flow [2023-08-25 07:54:53,923 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=143, PETRI_TRANSITIONS=150} [2023-08-25 07:54:53,923 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, -1 predicate places. [2023-08-25 07:54:53,923 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 150 transitions, 344 flow [2023-08-25 07:54:53,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 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) [2023-08-25 07:54:53,924 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:54:53,924 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:54:53,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 07:54:53,925 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-25 07:54:53,925 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:54:53,925 INFO L85 PathProgramCache]: Analyzing trace with hash -993367207, now seen corresponding path program 1 times [2023-08-25 07:54:53,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:54:53,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400934474] [2023-08-25 07:54:53,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:54:53,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:54:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:54:53,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:54:53,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:54:53,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400934474] [2023-08-25 07:54:53,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400934474] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:54:53,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:54:53,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:54:53,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557261699] [2023-08-25 07:54:53,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:54:53,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:54:53,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:54:53,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:54:53,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:54:53,986 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 368 [2023-08-25 07:54:53,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 150 transitions, 344 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:53,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:54:53,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 368 [2023-08-25 07:54:53,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:54:54,551 INFO L124 PetriNetUnfolderBase]: 2667/6993 cut-off events. [2023-08-25 07:54:54,551 INFO L125 PetriNetUnfolderBase]: For 530/615 co-relation queries the response was YES. [2023-08-25 07:54:54,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11481 conditions, 6993 events. 2667/6993 cut-off events. For 530/615 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 59998 event pairs, 1847 based on Foata normal form. 0/5701 useless extension candidates. Maximal degree in co-relation 11475. Up to 3533 conditions per place. [2023-08-25 07:54:54,594 INFO L140 encePairwiseOnDemand]: 362/368 looper letters, 81 selfloop transitions, 5 changer transitions 0/179 dead transitions. [2023-08-25 07:54:54,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 179 transitions, 586 flow [2023-08-25 07:54:54,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:54:54,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:54:54,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 747 transitions. [2023-08-25 07:54:54,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6766304347826086 [2023-08-25 07:54:54,598 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 747 transitions. [2023-08-25 07:54:54,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 747 transitions. [2023-08-25 07:54:54,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:54:54,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 747 transitions. [2023-08-25 07:54:54,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 249.0) internal successors, (747), 3 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) [2023-08-25 07:54:54,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:54,603 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:54,603 INFO L175 Difference]: Start difference. First operand has 143 places, 150 transitions, 344 flow. Second operand 3 states and 747 transitions. [2023-08-25 07:54:54,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 179 transitions, 586 flow [2023-08-25 07:54:54,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 179 transitions, 574 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 07:54:54,611 INFO L231 Difference]: Finished difference. Result has 145 places, 154 transitions, 374 flow [2023-08-25 07:54:54,612 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=145, PETRI_TRANSITIONS=154} [2023-08-25 07:54:54,613 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 1 predicate places. [2023-08-25 07:54:54,614 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 154 transitions, 374 flow [2023-08-25 07:54:54,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:54,614 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:54:54,614 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:54:54,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-25 07:54:54,615 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-25 07:54:54,615 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:54:54,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1143117092, now seen corresponding path program 1 times [2023-08-25 07:54:54,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:54:54,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687538165] [2023-08-25 07:54:54,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:54:54,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:54:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:54:54,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:54:54,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:54:54,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687538165] [2023-08-25 07:54:54,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687538165] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:54:54,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:54:54,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:54:54,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991984504] [2023-08-25 07:54:54,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:54:54,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:54:54,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:54:54,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:54:54,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:54:54,680 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 368 [2023-08-25 07:54:54,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 154 transitions, 374 flow. Second operand has 3 states, 3 states have (on average 202.0) internal successors, (606), 3 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:54,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:54:54,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 368 [2023-08-25 07:54:54,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:54:55,708 INFO L124 PetriNetUnfolderBase]: 6231/14483 cut-off events. [2023-08-25 07:54:55,708 INFO L125 PetriNetUnfolderBase]: For 1102/1283 co-relation queries the response was YES. [2023-08-25 07:54:55,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25958 conditions, 14483 events. 6231/14483 cut-off events. For 1102/1283 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 129007 event pairs, 2067 based on Foata normal form. 0/12119 useless extension candidates. Maximal degree in co-relation 25951. Up to 5392 conditions per place. [2023-08-25 07:54:55,787 INFO L140 encePairwiseOnDemand]: 340/368 looper letters, 125 selfloop transitions, 21 changer transitions 0/222 dead transitions. [2023-08-25 07:54:55,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 222 transitions, 833 flow [2023-08-25 07:54:55,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:54:55,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:54:55,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 743 transitions. [2023-08-25 07:54:55,794 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6730072463768116 [2023-08-25 07:54:55,794 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 743 transitions. [2023-08-25 07:54:55,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 743 transitions. [2023-08-25 07:54:55,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:54:55,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 743 transitions. [2023-08-25 07:54:55,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 247.66666666666666) internal successors, (743), 3 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:55,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:55,799 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:55,800 INFO L175 Difference]: Start difference. First operand has 145 places, 154 transitions, 374 flow. Second operand 3 states and 743 transitions. [2023-08-25 07:54:55,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 222 transitions, 833 flow [2023-08-25 07:54:55,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 222 transitions, 817 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 07:54:55,807 INFO L231 Difference]: Finished difference. Result has 147 places, 175 transitions, 552 flow [2023-08-25 07:54:55,808 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=552, PETRI_PLACES=147, PETRI_TRANSITIONS=175} [2023-08-25 07:54:55,810 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 3 predicate places. [2023-08-25 07:54:55,811 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 175 transitions, 552 flow [2023-08-25 07:54:55,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.0) internal successors, (606), 3 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:55,811 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:54:55,811 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:54:55,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-25 07:54:55,812 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-25 07:54:55,812 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:54:55,812 INFO L85 PathProgramCache]: Analyzing trace with hash -445995473, now seen corresponding path program 1 times [2023-08-25 07:54:55,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:54:55,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588482637] [2023-08-25 07:54:55,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:54:55,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:54:55,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:54:55,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:54:55,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:54:55,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588482637] [2023-08-25 07:54:55,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588482637] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:54:55,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:54:55,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:54:55,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006952601] [2023-08-25 07:54:55,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:54:55,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:54:55,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:54:55,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:54:55,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:54:55,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 368 [2023-08-25 07:54:55,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 175 transitions, 552 flow. Second operand has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:55,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:54:55,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 368 [2023-08-25 07:54:55,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:54:56,932 INFO L124 PetriNetUnfolderBase]: 5163/13601 cut-off events. [2023-08-25 07:54:56,933 INFO L125 PetriNetUnfolderBase]: For 2527/2716 co-relation queries the response was YES. [2023-08-25 07:54:56,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25373 conditions, 13601 events. 5163/13601 cut-off events. For 2527/2716 co-relation queries the response was YES. Maximal size of possible extension queue 368. Compared 130302 event pairs, 3402 based on Foata normal form. 18/11595 useless extension candidates. Maximal degree in co-relation 25365. Up to 7226 conditions per place. [2023-08-25 07:54:56,996 INFO L140 encePairwiseOnDemand]: 363/368 looper letters, 95 selfloop transitions, 5 changer transitions 0/209 dead transitions. [2023-08-25 07:54:56,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 209 transitions, 859 flow [2023-08-25 07:54:56,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:54:56,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:54:56,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 748 transitions. [2023-08-25 07:54:56,999 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.677536231884058 [2023-08-25 07:54:56,999 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 748 transitions. [2023-08-25 07:54:56,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 748 transitions. [2023-08-25 07:54:56,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:54:57,000 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 748 transitions. [2023-08-25 07:54:57,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 249.33333333333334) internal successors, (748), 3 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:57,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:57,004 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:57,004 INFO L175 Difference]: Start difference. First operand has 147 places, 175 transitions, 552 flow. Second operand 3 states and 748 transitions. [2023-08-25 07:54:57,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 209 transitions, 859 flow [2023-08-25 07:54:57,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 209 transitions, 811 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 07:54:57,016 INFO L231 Difference]: Finished difference. Result has 148 places, 178 transitions, 541 flow [2023-08-25 07:54:57,016 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=510, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=541, PETRI_PLACES=148, PETRI_TRANSITIONS=178} [2023-08-25 07:54:57,018 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 4 predicate places. [2023-08-25 07:54:57,021 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 178 transitions, 541 flow [2023-08-25 07:54:57,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:57,022 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:54:57,022 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:54:57,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-25 07:54:57,023 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-25 07:54:57,023 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:54:57,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1755959376, now seen corresponding path program 1 times [2023-08-25 07:54:57,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:54:57,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587180470] [2023-08-25 07:54:57,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:54:57,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:54:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:54:57,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:54:57,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:54:57,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587180470] [2023-08-25 07:54:57,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587180470] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:54:57,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:54:57,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:54:57,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713911201] [2023-08-25 07:54:57,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:54:57,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:54:57,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:54:57,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:54:57,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:54:57,070 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 368 [2023-08-25 07:54:57,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 178 transitions, 541 flow. Second operand has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:57,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:54:57,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 368 [2023-08-25 07:54:57,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:54:58,262 INFO L124 PetriNetUnfolderBase]: 7042/17038 cut-off events. [2023-08-25 07:54:58,262 INFO L125 PetriNetUnfolderBase]: For 2533/3094 co-relation queries the response was YES. [2023-08-25 07:54:58,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33224 conditions, 17038 events. 7042/17038 cut-off events. For 2533/3094 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 164754 event pairs, 2357 based on Foata normal form. 170/14890 useless extension candidates. Maximal degree in co-relation 33215. Up to 5876 conditions per place. [2023-08-25 07:54:58,357 INFO L140 encePairwiseOnDemand]: 349/368 looper letters, 129 selfloop transitions, 11 changer transitions 0/242 dead transitions. [2023-08-25 07:54:58,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 242 transitions, 1006 flow [2023-08-25 07:54:58,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:54:58,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:54:58,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 770 transitions. [2023-08-25 07:54:58,360 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.697463768115942 [2023-08-25 07:54:58,360 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 770 transitions. [2023-08-25 07:54:58,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 770 transitions. [2023-08-25 07:54:58,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:54:58,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 770 transitions. [2023-08-25 07:54:58,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:58,368 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:58,368 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:58,369 INFO L175 Difference]: Start difference. First operand has 148 places, 178 transitions, 541 flow. Second operand 3 states and 770 transitions. [2023-08-25 07:54:58,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 242 transitions, 1006 flow [2023-08-25 07:54:58,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 242 transitions, 999 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-25 07:54:58,380 INFO L231 Difference]: Finished difference. Result has 151 places, 188 transitions, 636 flow [2023-08-25 07:54:58,381 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=636, PETRI_PLACES=151, PETRI_TRANSITIONS=188} [2023-08-25 07:54:58,381 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 7 predicate places. [2023-08-25 07:54:58,381 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 188 transitions, 636 flow [2023-08-25 07:54:58,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:58,383 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:54:58,383 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:54:58,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-25 07:54:58,384 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-25 07:54:58,384 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:54:58,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1755996888, now seen corresponding path program 1 times [2023-08-25 07:54:58,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:54:58,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104415737] [2023-08-25 07:54:58,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:54:58,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:54:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-25 07:54:58,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-25 07:54:58,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-25 07:54:58,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104415737] [2023-08-25 07:54:58,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104415737] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-25 07:54:58,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-25 07:54:58,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-25 07:54:58,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881575656] [2023-08-25 07:54:58,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-25 07:54:58,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-25 07:54:58,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-25 07:54:58,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-25 07:54:58,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-25 07:54:58,428 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 368 [2023-08-25 07:54:58,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 188 transitions, 636 flow. Second operand has 3 states, 3 states have (on average 201.0) internal successors, (603), 3 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:58,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-25 07:54:58,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 368 [2023-08-25 07:54:58,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-25 07:54:59,860 INFO L124 PetriNetUnfolderBase]: 8043/18797 cut-off events. [2023-08-25 07:54:59,861 INFO L125 PetriNetUnfolderBase]: For 4366/4917 co-relation queries the response was YES. [2023-08-25 07:54:59,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39667 conditions, 18797 events. 8043/18797 cut-off events. For 4366/4917 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 180742 event pairs, 5334 based on Foata normal form. 50/16230 useless extension candidates. Maximal degree in co-relation 39657. Up to 12212 conditions per place. [2023-08-25 07:54:59,956 INFO L140 encePairwiseOnDemand]: 359/368 looper letters, 132 selfloop transitions, 14 changer transitions 0/232 dead transitions. [2023-08-25 07:54:59,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 232 transitions, 1070 flow [2023-08-25 07:54:59,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-25 07:54:59,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-25 07:54:59,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 703 transitions. [2023-08-25 07:54:59,963 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6367753623188406 [2023-08-25 07:54:59,963 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 703 transitions. [2023-08-25 07:54:59,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 703 transitions. [2023-08-25 07:54:59,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-25 07:54:59,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 703 transitions. [2023-08-25 07:54:59,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 234.33333333333334) internal successors, (703), 3 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:59,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:59,970 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 368.0) internal successors, (1472), 4 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:59,970 INFO L175 Difference]: Start difference. First operand has 151 places, 188 transitions, 636 flow. Second operand 3 states and 703 transitions. [2023-08-25 07:54:59,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 232 transitions, 1070 flow [2023-08-25 07:54:59,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 232 transitions, 1048 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-25 07:54:59,983 INFO L231 Difference]: Finished difference. Result has 152 places, 200 transitions, 728 flow [2023-08-25 07:54:59,983 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=368, PETRI_DIFFERENCE_MINUEND_FLOW=614, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=728, PETRI_PLACES=152, PETRI_TRANSITIONS=200} [2023-08-25 07:54:59,985 INFO L281 CegarLoopForPetriNet]: 144 programPoint places, 8 predicate places. [2023-08-25 07:54:59,985 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 200 transitions, 728 flow [2023-08-25 07:54:59,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 201.0) internal successors, (603), 3 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-25 07:54:59,986 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:54:59,986 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:54:59,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-25 07:54:59,986 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 64 more)] === [2023-08-25 07:54:59,989 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:54:59,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1851576756, now seen corresponding path program 1 times [2023-08-25 07:54:59,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:54:59,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741221364] [2023-08-25 07:54:59,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:54:59,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:55:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 07:55:00,011 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 07:55:00,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 07:55:00,040 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 07:55:00,040 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 07:55:00,041 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (67 of 68 remaining) [2023-08-25 07:55:00,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (66 of 68 remaining) [2023-08-25 07:55:00,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (65 of 68 remaining) [2023-08-25 07:55:00,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (64 of 68 remaining) [2023-08-25 07:55:00,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (63 of 68 remaining) [2023-08-25 07:55:00,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONASSERT (62 of 68 remaining) [2023-08-25 07:55:00,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (61 of 68 remaining) [2023-08-25 07:55:00,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (60 of 68 remaining) [2023-08-25 07:55:00,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (59 of 68 remaining) [2023-08-25 07:55:00,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (58 of 68 remaining) [2023-08-25 07:55:00,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (57 of 68 remaining) [2023-08-25 07:55:00,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (56 of 68 remaining) [2023-08-25 07:55:00,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (55 of 68 remaining) [2023-08-25 07:55:00,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (54 of 68 remaining) [2023-08-25 07:55:00,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (53 of 68 remaining) [2023-08-25 07:55:00,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (52 of 68 remaining) [2023-08-25 07:55:00,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (51 of 68 remaining) [2023-08-25 07:55:00,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (50 of 68 remaining) [2023-08-25 07:55:00,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (49 of 68 remaining) [2023-08-25 07:55:00,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (48 of 68 remaining) [2023-08-25 07:55:00,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (47 of 68 remaining) [2023-08-25 07:55:00,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONASSERT (46 of 68 remaining) [2023-08-25 07:55:00,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (45 of 68 remaining) [2023-08-25 07:55:00,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (44 of 68 remaining) [2023-08-25 07:55:00,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (43 of 68 remaining) [2023-08-25 07:55:00,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (42 of 68 remaining) [2023-08-25 07:55:00,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (41 of 68 remaining) [2023-08-25 07:55:00,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 68 remaining) [2023-08-25 07:55:00,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (39 of 68 remaining) [2023-08-25 07:55:00,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (38 of 68 remaining) [2023-08-25 07:55:00,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (37 of 68 remaining) [2023-08-25 07:55:00,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (36 of 68 remaining) [2023-08-25 07:55:00,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (35 of 68 remaining) [2023-08-25 07:55:00,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (34 of 68 remaining) [2023-08-25 07:55:00,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (33 of 68 remaining) [2023-08-25 07:55:00,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 68 remaining) [2023-08-25 07:55:00,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 68 remaining) [2023-08-25 07:55:00,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (30 of 68 remaining) [2023-08-25 07:55:00,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (29 of 68 remaining) [2023-08-25 07:55:00,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (28 of 68 remaining) [2023-08-25 07:55:00,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (27 of 68 remaining) [2023-08-25 07:55:00,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONASSERT (26 of 68 remaining) [2023-08-25 07:55:00,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (25 of 68 remaining) [2023-08-25 07:55:00,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (24 of 68 remaining) [2023-08-25 07:55:00,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (23 of 68 remaining) [2023-08-25 07:55:00,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (22 of 68 remaining) [2023-08-25 07:55:00,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (21 of 68 remaining) [2023-08-25 07:55:00,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (20 of 68 remaining) [2023-08-25 07:55:00,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (19 of 68 remaining) [2023-08-25 07:55:00,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (18 of 68 remaining) [2023-08-25 07:55:00,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (17 of 68 remaining) [2023-08-25 07:55:00,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (16 of 68 remaining) [2023-08-25 07:55:00,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (15 of 68 remaining) [2023-08-25 07:55:00,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 68 remaining) [2023-08-25 07:55:00,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 68 remaining) [2023-08-25 07:55:00,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 68 remaining) [2023-08-25 07:55:00,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONASSERT (11 of 68 remaining) [2023-08-25 07:55:00,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (10 of 68 remaining) [2023-08-25 07:55:00,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 68 remaining) [2023-08-25 07:55:00,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (8 of 68 remaining) [2023-08-25 07:55:00,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 68 remaining) [2023-08-25 07:55:00,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 68 remaining) [2023-08-25 07:55:00,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 68 remaining) [2023-08-25 07:55:00,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 68 remaining) [2023-08-25 07:55:00,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 68 remaining) [2023-08-25 07:55:00,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (2 of 68 remaining) [2023-08-25 07:55:00,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (1 of 68 remaining) [2023-08-25 07:55:00,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (0 of 68 remaining) [2023-08-25 07:55:00,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-25 07:55:00,052 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-25 07:55:00,059 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-25 07:55:00,059 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-25 07:55:00,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.08 07:55:00 BasicIcfg [2023-08-25 07:55:00,093 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-25 07:55:00,093 INFO L158 Benchmark]: Toolchain (without parser) took 11936.41ms. Allocated memory was 348.1MB in the beginning and 1.6GB in the end (delta: 1.2GB). Free memory was 323.4MB in the beginning and 1.1GB in the end (delta: -757.0MB). Peak memory consumption was 447.5MB. Max. memory is 16.0GB. [2023-08-25 07:55:00,093 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 348.1MB. Free memory was 326.6MB in the beginning and 326.4MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 07:55:00,094 INFO L158 Benchmark]: CACSL2BoogieTranslator took 486.61ms. Allocated memory is still 348.1MB. Free memory was 323.4MB in the beginning and 303.8MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-08-25 07:55:00,094 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.98ms. Allocated memory is still 348.1MB. Free memory was 303.2MB in the beginning and 301.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 07:55:00,094 INFO L158 Benchmark]: Boogie Preprocessor took 60.14ms. Allocated memory is still 348.1MB. Free memory was 301.0MB in the beginning and 299.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 07:55:00,095 INFO L158 Benchmark]: RCFGBuilder took 462.09ms. Allocated memory is still 348.1MB. Free memory was 299.0MB in the beginning and 278.7MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 07:55:00,095 INFO L158 Benchmark]: TraceAbstraction took 10855.59ms. Allocated memory was 348.1MB in the beginning and 1.6GB in the end (delta: 1.2GB). Free memory was 278.0MB in the beginning and 1.1GB in the end (delta: -802.3MB). Peak memory consumption was 403.4MB. Max. memory is 16.0GB. [2023-08-25 07:55:00,096 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 348.1MB. Free memory was 326.6MB in the beginning and 326.4MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 486.61ms. Allocated memory is still 348.1MB. Free memory was 323.4MB in the beginning and 303.8MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 66.98ms. Allocated memory is still 348.1MB. Free memory was 303.2MB in the beginning and 301.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 60.14ms. Allocated memory is still 348.1MB. Free memory was 301.0MB in the beginning and 299.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 462.09ms. Allocated memory is still 348.1MB. Free memory was 299.0MB in the beginning and 278.7MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * TraceAbstraction took 10855.59ms. Allocated memory was 348.1MB in the beginning and 1.6GB in the end (delta: 1.2GB). Free memory was 278.0MB in the beginning and 1.1GB in the end (delta: -802.3MB). Peak memory consumption was 403.4MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 249]: Unsoundness Warning unspecified type, defaulting to int C: short [249] - GenericResultAtLocation [Line: 249]: Unsoundness Warning unspecified type, defaulting to int C: short [249] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 225 PlacesBefore, 144 PlacesAfterwards, 244 TransitionsBefore, 163 TransitionsAfterwards, 26600 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 83 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 0 ChoiceCompositions, 113 TotalNumberOfCompositions, 138598 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 45990, independent: 44559, independent conditional: 0, independent unconditional: 44559, dependent: 1431, dependent conditional: 0, dependent unconditional: 1431, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 12255, independent: 12051, independent conditional: 0, independent unconditional: 12051, dependent: 204, dependent conditional: 0, dependent unconditional: 204, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 45990, independent: 32508, independent conditional: 0, independent unconditional: 32508, dependent: 1227, dependent conditional: 0, dependent unconditional: 1227, unknown: 12255, unknown conditional: 0, unknown unconditional: 12255] , Statistics on independence cache: Total cache size (in pairs): 3380, Positive cache size: 3229, Positive conditional cache size: 0, Positive unconditional cache size: 3229, Negative cache size: 151, Negative conditional cache size: 0, Negative unconditional cache size: 151, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 690]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int x, y; [L685] 0 int b1, b2; [L686] 0 int X; [L740] 0 pthread_t t1, t2; [L741] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [X=0, b1=0, b2=0, pthread_create(&t1, 0, thr1, 0)=-2, t1={3:0}, t2={5:0}, x=0, y=0] [L688] COND TRUE 1 1 [L689] 1 b1 = 1 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=0, x=0, y=0] [L742] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [X=0, b1=1, b2=0, pthread_create(&t2, 0, thr2, 0)=-1, t1={3:0}, t2={5:0}, x=0, y=0] [L690] 1 x = 1 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=0, x=1, y=0] [L714] COND TRUE 2 1 [L715] 2 b2 = 1 [L716] 2 x = 2 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=1, x=2, y=0] [L690] 1 x = 1 VAL [X=0, _={0:0}, _={0:0}, b1=1, b2=1, x = 1=51, x=2, y=0] Now there is a data race on ~x~0 between C: x = 2 [716] and C: x = 1 [690] - UnprovableResult [Line: 733]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 734]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 735]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 736]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 724]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 726]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 727]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 743]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 742]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 741]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 408 locations, 68 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: 10.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 225 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 225 mSDsluCounter, 107 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 994 IncrementalHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 107 mSDtfsCounter, 994 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=728occurred in iteration=8, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 106 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-25 07:55:00,216 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...