/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false -i ../../../trunk/examples/svcomp/pthread-ext/03_incdec-pthread.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 00:19:15,304 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 00:19:15,365 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-NoLbe.epf [2023-11-30 00:19:15,390 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 00:19:15,390 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 00:19:15,391 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 00:19:15,391 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 00:19:15,391 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 00:19:15,391 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 00:19:15,394 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 00:19:15,395 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 00:19:15,395 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 00:19:15,395 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 00:19:15,396 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 00:19:15,396 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 00:19:15,396 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 00:19:15,396 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 00:19:15,396 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 00:19:15,396 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 00:19:15,397 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 00:19:15,397 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 00:19:15,397 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 00:19:15,397 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 00:19:15,397 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 00:19:15,398 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 00:19:15,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 00:19:15,398 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 00:19:15,398 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 00:19:15,398 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 00:19:15,398 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 00:19:15,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 00:19:15,399 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 00:19:15,399 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 00:19:15,399 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2023-11-30 00:19:15,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 00:19:15,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 00:19:15,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 00:19:15,608 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 00:19:15,608 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 00:19:15,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/03_incdec-pthread.i [2023-11-30 00:19:16,647 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 00:19:16,844 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 00:19:16,844 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/03_incdec-pthread.i [2023-11-30 00:19:16,853 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f36b2cc0/bdacbe95bea149c2ba82677030766be2/FLAG1b4a31f67 [2023-11-30 00:19:16,861 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f36b2cc0/bdacbe95bea149c2ba82677030766be2 [2023-11-30 00:19:16,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 00:19:16,864 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 00:19:16,873 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 00:19:16,874 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 00:19:16,877 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 00:19:16,877 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:19:16" (1/1) ... [2023-11-30 00:19:16,878 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d17c20a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:16, skipping insertion in model container [2023-11-30 00:19:16,878 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:19:16" (1/1) ... [2023-11-30 00:19:16,904 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 00:19:17,083 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 00:19:17,091 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 00:19:17,116 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 00:19:17,139 INFO L206 MainTranslator]: Completed translation [2023-11-30 00:19:17,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:17 WrapperNode [2023-11-30 00:19:17,139 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 00:19:17,140 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 00:19:17,140 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 00:19:17,140 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 00:19:17,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:17" (1/1) ... [2023-11-30 00:19:17,152 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:17" (1/1) ... [2023-11-30 00:19:17,167 INFO L138 Inliner]: procedures = 165, calls = 30, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 147 [2023-11-30 00:19:17,167 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 00:19:17,168 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 00:19:17,168 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 00:19:17,168 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 00:19:17,173 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:17" (1/1) ... [2023-11-30 00:19:17,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:17" (1/1) ... [2023-11-30 00:19:17,175 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:17" (1/1) ... [2023-11-30 00:19:17,176 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:17" (1/1) ... [2023-11-30 00:19:17,180 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:17" (1/1) ... [2023-11-30 00:19:17,182 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:17" (1/1) ... [2023-11-30 00:19:17,183 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:17" (1/1) ... [2023-11-30 00:19:17,184 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:17" (1/1) ... [2023-11-30 00:19:17,186 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 00:19:17,186 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 00:19:17,186 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 00:19:17,186 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 00:19:17,187 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:17" (1/1) ... [2023-11-30 00:19:17,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 00:19:17,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 00:19:17,217 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) [2023-11-30 00:19:17,242 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-30 00:19:17,242 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-30 00:19:17,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 00:19:17,243 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-30 00:19:17,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 00:19:17,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 00:19:17,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 00:19:17,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 00:19:17,227 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 [2023-11-30 00:19:17,243 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-30 00:19:17,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 00:19:17,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 00:19:17,245 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 00:19:17,367 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 00:19:17,369 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 00:19:17,526 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 00:19:17,549 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 00:19:17,549 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-30 00:19:17,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:19:17 BoogieIcfgContainer [2023-11-30 00:19:17,550 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 00:19:17,552 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 00:19:17,552 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 00:19:17,554 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 00:19:17,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:19:16" (1/3) ... [2023-11-30 00:19:17,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@167088a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:19:17, skipping insertion in model container [2023-11-30 00:19:17,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:19:17" (2/3) ... [2023-11-30 00:19:17,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@167088a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:19:17, skipping insertion in model container [2023-11-30 00:19:17,555 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:19:17" (3/3) ... [2023-11-30 00:19:17,556 INFO L112 eAbstractionObserver]: Analyzing ICFG 03_incdec-pthread.i [2023-11-30 00:19:17,568 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 00:19:17,569 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-30 00:19:17,569 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 00:19:17,662 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 00:19:17,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 163 transitions, 330 flow [2023-11-30 00:19:17,755 INFO L124 PetriNetUnfolderBase]: 11/174 cut-off events. [2023-11-30 00:19:17,755 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 00:19:17,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 174 events. 11/174 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 367 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 142. Up to 4 conditions per place. [2023-11-30 00:19:17,760 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 163 transitions, 330 flow [2023-11-30 00:19:17,764 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 163 transitions, 330 flow [2023-11-30 00:19:17,771 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 00:19:17,776 INFO L362 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@5209ccd6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 00:19:17,776 INFO L363 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-11-30 00:19:17,786 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 00:19:17,786 INFO L124 PetriNetUnfolderBase]: 2/52 cut-off events. [2023-11-30 00:19:17,786 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 00:19:17,786 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:19:17,787 INFO L232 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 00:19:17,787 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-30 00:19:17,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:19:17,791 INFO L85 PathProgramCache]: Analyzing trace with hash -165606202, now seen corresponding path program 1 times [2023-11-30 00:19:17,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:19:17,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542829912] [2023-11-30 00:19:17,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:19:17,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:19:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-30 00:19:17,884 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-30 00:19:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-30 00:19:17,932 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-30 00:19:17,934 INFO L372 BasicCegarLoop]: Counterexample is feasible [2023-11-30 00:19:17,935 INFO L810 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2023-11-30 00:19:17,936 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2023-11-30 00:19:17,936 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2023-11-30 00:19:17,937 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2023-11-30 00:19:17,937 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2023-11-30 00:19:17,937 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2023-11-30 00:19:17,938 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2023-11-30 00:19:17,938 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2023-11-30 00:19:17,938 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2023-11-30 00:19:17,939 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2023-11-30 00:19:17,939 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2023-11-30 00:19:17,939 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2023-11-30 00:19:17,939 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2023-11-30 00:19:17,939 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2023-11-30 00:19:17,939 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2023-11-30 00:19:17,940 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2023-11-30 00:19:17,940 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2023-11-30 00:19:17,940 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2023-11-30 00:19:17,941 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2023-11-30 00:19:17,941 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2023-11-30 00:19:17,941 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2023-11-30 00:19:17,941 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2023-11-30 00:19:17,942 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2023-11-30 00:19:17,942 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2023-11-30 00:19:17,943 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2023-11-30 00:19:17,943 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 00:19:17,945 INFO L457 BasicCegarLoop]: Path program histogram: [1] [2023-11-30 00:19:17,950 WARN L227 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-30 00:19:17,950 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-30 00:19:18,013 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 00:19:18,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 279 places, 293 transitions, 596 flow [2023-11-30 00:19:18,080 INFO L124 PetriNetUnfolderBase]: 21/317 cut-off events. [2023-11-30 00:19:18,080 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-30 00:19:18,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 317 events. 21/317 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1136 event pairs, 0 based on Foata normal form. 0/269 useless extension candidates. Maximal degree in co-relation 271. Up to 6 conditions per place. [2023-11-30 00:19:18,090 INFO L82 GeneralOperation]: Start removeDead. Operand has 279 places, 293 transitions, 596 flow [2023-11-30 00:19:18,095 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 279 places, 293 transitions, 596 flow [2023-11-30 00:19:18,097 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 00:19:18,100 INFO L362 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@5209ccd6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 00:19:18,100 INFO L363 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2023-11-30 00:19:18,114 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 00:19:18,115 INFO L124 PetriNetUnfolderBase]: 3/78 cut-off events. [2023-11-30 00:19:18,115 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 00:19:18,115 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:19:18,115 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 00:19:18,116 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-30 00:19:18,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:19:18,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1924268159, now seen corresponding path program 1 times [2023-11-30 00:19:18,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:19:18,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892225304] [2023-11-30 00:19:18,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:19:18,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:19:18,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 00:19:18,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 00:19:18,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 00:19:18,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892225304] [2023-11-30 00:19:18,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892225304] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 00:19:18,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 00:19:18,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 00:19:18,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584659922] [2023-11-30 00:19:18,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 00:19:18,259 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 00:19:18,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 00:19:18,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 00:19:18,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 00:19:18,284 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 293 [2023-11-30 00:19:18,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 293 transitions, 596 flow. Second operand has 3 states, 3 states have (on average 210.33333333333334) internal successors, (631), 3 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:19:18,289 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 00:19:18,289 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 293 [2023-11-30 00:19:18,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 00:19:19,173 INFO L124 PetriNetUnfolderBase]: 1558/7842 cut-off events. [2023-11-30 00:19:19,173 INFO L125 PetriNetUnfolderBase]: For 99/99 co-relation queries the response was YES. [2023-11-30 00:19:19,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10815 conditions, 7842 events. 1558/7842 cut-off events. For 99/99 co-relation queries the response was YES. Maximal size of possible extension queue 296. Compared 87363 event pairs, 490 based on Foata normal form. 2109/8781 useless extension candidates. Maximal degree in co-relation 2884. Up to 1680 conditions per place. [2023-11-30 00:19:19,270 INFO L140 encePairwiseOnDemand]: 243/293 looper letters, 99 selfloop transitions, 28 changer transitions 0/323 dead transitions. [2023-11-30 00:19:19,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 323 transitions, 915 flow [2023-11-30 00:19:19,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 00:19:19,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 00:19:19,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 786 transitions. [2023-11-30 00:19:19,284 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.89419795221843 [2023-11-30 00:19:19,285 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 786 transitions. [2023-11-30 00:19:19,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 786 transitions. [2023-11-30 00:19:19,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 00:19:19,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 786 transitions. [2023-11-30 00:19:19,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 262.0) internal successors, (786), 3 states have internal predecessors, (786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:19:19,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 293.0) internal successors, (1172), 4 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:19:19,302 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 293.0) internal successors, (1172), 4 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:19:19,305 INFO L307 CegarLoopForPetriNet]: 279 programPoint places, -16 predicate places. [2023-11-30 00:19:19,305 INFO L500 AbstractCegarLoop]: Abstraction has has 263 places, 323 transitions, 915 flow [2023-11-30 00:19:19,306 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 210.33333333333334) internal successors, (631), 3 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:19:19,306 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:19:19,306 INFO L232 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 00:19:19,306 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 00:19:19,307 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-30 00:19:19,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:19:19,308 INFO L85 PathProgramCache]: Analyzing trace with hash 98054253, now seen corresponding path program 1 times [2023-11-30 00:19:19,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:19:19,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294965050] [2023-11-30 00:19:19,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:19:19,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:19:19,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-30 00:19:19,343 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-30 00:19:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-30 00:19:19,372 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-30 00:19:19,372 INFO L372 BasicCegarLoop]: Counterexample is feasible [2023-11-30 00:19:19,372 INFO L810 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2023-11-30 00:19:19,372 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2023-11-30 00:19:19,372 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2023-11-30 00:19:19,372 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2023-11-30 00:19:19,373 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2023-11-30 00:19:19,373 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2023-11-30 00:19:19,373 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2023-11-30 00:19:19,373 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2023-11-30 00:19:19,373 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2023-11-30 00:19:19,373 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2023-11-30 00:19:19,373 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2023-11-30 00:19:19,373 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2023-11-30 00:19:19,374 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2023-11-30 00:19:19,374 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2023-11-30 00:19:19,374 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2023-11-30 00:19:19,374 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2023-11-30 00:19:19,374 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2023-11-30 00:19:19,374 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2023-11-30 00:19:19,374 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2023-11-30 00:19:19,374 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2023-11-30 00:19:19,375 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2023-11-30 00:19:19,375 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2023-11-30 00:19:19,375 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2023-11-30 00:19:19,375 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2023-11-30 00:19:19,375 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2023-11-30 00:19:19,375 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2023-11-30 00:19:19,375 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2023-11-30 00:19:19,375 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2023-11-30 00:19:19,375 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2023-11-30 00:19:19,376 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2023-11-30 00:19:19,376 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2023-11-30 00:19:19,378 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2023-11-30 00:19:19,378 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2023-11-30 00:19:19,378 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2023-11-30 00:19:19,378 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2023-11-30 00:19:19,378 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2023-11-30 00:19:19,379 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2023-11-30 00:19:19,379 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 00:19:19,379 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-30 00:19:19,379 WARN L227 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-30 00:19:19,379 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-30 00:19:19,442 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 00:19:19,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 402 places, 423 transitions, 864 flow [2023-11-30 00:19:19,517 INFO L124 PetriNetUnfolderBase]: 31/460 cut-off events. [2023-11-30 00:19:19,517 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-30 00:19:19,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 460 events. 31/460 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2047 event pairs, 0 based on Foata normal form. 0/389 useless extension candidates. Maximal degree in co-relation 400. Up to 8 conditions per place. [2023-11-30 00:19:19,522 INFO L82 GeneralOperation]: Start removeDead. Operand has 402 places, 423 transitions, 864 flow [2023-11-30 00:19:19,527 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 402 places, 423 transitions, 864 flow [2023-11-30 00:19:19,528 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 00:19:19,532 INFO L362 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@5209ccd6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 00:19:19,532 INFO L363 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2023-11-30 00:19:19,537 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 00:19:19,537 INFO L124 PetriNetUnfolderBase]: 3/79 cut-off events. [2023-11-30 00:19:19,537 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 00:19:19,537 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:19:19,538 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 00:19:19,538 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-30 00:19:19,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:19:19,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1390924677, now seen corresponding path program 1 times [2023-11-30 00:19:19,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:19:19,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709629522] [2023-11-30 00:19:19,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:19:19,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:19:19,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 00:19:19,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 00:19:19,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 00:19:19,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709629522] [2023-11-30 00:19:19,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709629522] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 00:19:19,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 00:19:19,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 00:19:19,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564162975] [2023-11-30 00:19:19,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 00:19:19,612 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 00:19:19,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 00:19:19,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 00:19:19,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 00:19:19,614 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 423 [2023-11-30 00:19:19,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 423 transitions, 864 flow. Second operand has 3 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:19:19,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 00:19:19,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 423 [2023-11-30 00:19:19,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 00:19:56,579 INFO L124 PetriNetUnfolderBase]: 126126/383820 cut-off events. [2023-11-30 00:19:56,580 INFO L125 PetriNetUnfolderBase]: For 8983/8983 co-relation queries the response was YES. [2023-11-30 00:19:58,962 INFO L83 FinitePrefix]: Finished finitePrefix Result has 574081 conditions, 383820 events. 126126/383820 cut-off events. For 8983/8983 co-relation queries the response was YES. Maximal size of possible extension queue 9894. Compared 6511061 event pairs, 44718 based on Foata normal form. 100596/420095 useless extension candidates. Maximal degree in co-relation 38965. Up to 110232 conditions per place. [2023-11-30 00:20:00,705 INFO L140 encePairwiseOnDemand]: 349/423 looper letters, 149 selfloop transitions, 42 changer transitions 0/472 dead transitions. [2023-11-30 00:20:00,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 472 transitions, 1356 flow [2023-11-30 00:20:00,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 00:20:00,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 00:20:00,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1131 transitions. [2023-11-30 00:20:00,708 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8912529550827423 [2023-11-30 00:20:00,708 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1131 transitions. [2023-11-30 00:20:00,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1131 transitions. [2023-11-30 00:20:00,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 00:20:00,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1131 transitions. [2023-11-30 00:20:00,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 377.0) internal successors, (1131), 3 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:20:00,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 423.0) internal successors, (1692), 4 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:20:00,713 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 423.0) internal successors, (1692), 4 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:20:00,713 INFO L307 CegarLoopForPetriNet]: 402 programPoint places, -22 predicate places. [2023-11-30 00:20:00,714 INFO L500 AbstractCegarLoop]: Abstraction has has 380 places, 472 transitions, 1356 flow [2023-11-30 00:20:00,714 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.3333333333333) internal successors, (898), 3 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:20:00,714 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:20:00,714 INFO L232 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 00:20:00,714 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 00:20:00,714 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2023-11-30 00:20:00,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:20:00,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1080219697, now seen corresponding path program 1 times [2023-11-30 00:20:00,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:20:00,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159306210] [2023-11-30 00:20:00,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:20:00,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:20:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-30 00:20:00,728 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-30 00:20:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-30 00:20:00,739 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-30 00:20:00,739 INFO L372 BasicCegarLoop]: Counterexample is feasible [2023-11-30 00:20:00,739 INFO L810 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2023-11-30 00:20:00,740 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2023-11-30 00:20:00,740 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2023-11-30 00:20:00,740 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2023-11-30 00:20:00,740 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2023-11-30 00:20:00,740 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2023-11-30 00:20:00,740 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2023-11-30 00:20:00,740 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2023-11-30 00:20:00,740 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2023-11-30 00:20:00,740 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2023-11-30 00:20:00,740 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2023-11-30 00:20:00,740 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2023-11-30 00:20:00,741 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2023-11-30 00:20:00,741 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2023-11-30 00:20:00,741 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2023-11-30 00:20:00,741 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2023-11-30 00:20:00,741 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2023-11-30 00:20:00,741 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2023-11-30 00:20:00,741 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2023-11-30 00:20:00,741 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2023-11-30 00:20:00,741 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2023-11-30 00:20:00,741 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2023-11-30 00:20:00,741 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2023-11-30 00:20:00,742 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2023-11-30 00:20:00,742 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2023-11-30 00:20:00,742 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2023-11-30 00:20:00,742 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2023-11-30 00:20:00,742 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2023-11-30 00:20:00,742 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2023-11-30 00:20:00,742 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2023-11-30 00:20:00,742 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2023-11-30 00:20:00,742 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2023-11-30 00:20:00,742 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2023-11-30 00:20:00,742 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2023-11-30 00:20:00,742 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2023-11-30 00:20:00,743 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2023-11-30 00:20:00,743 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2023-11-30 00:20:00,743 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2023-11-30 00:20:00,743 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2023-11-30 00:20:00,743 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2023-11-30 00:20:00,743 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2023-11-30 00:20:00,743 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2023-11-30 00:20:00,743 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2023-11-30 00:20:00,743 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2023-11-30 00:20:00,743 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2023-11-30 00:20:00,743 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2023-11-30 00:20:00,743 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2023-11-30 00:20:00,744 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2023-11-30 00:20:00,744 INFO L810 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2023-11-30 00:20:00,744 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-30 00:20:00,744 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-30 00:20:00,744 WARN L227 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-30 00:20:00,744 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-30 00:20:00,792 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 00:20:00,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 525 places, 553 transitions, 1134 flow [2023-11-30 00:20:00,883 INFO L124 PetriNetUnfolderBase]: 41/603 cut-off events. [2023-11-30 00:20:00,884 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-30 00:20:00,894 INFO L83 FinitePrefix]: Finished finitePrefix Result has 622 conditions, 603 events. 41/603 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3027 event pairs, 0 based on Foata normal form. 0/509 useless extension candidates. Maximal degree in co-relation 529. Up to 10 conditions per place. [2023-11-30 00:20:00,894 INFO L82 GeneralOperation]: Start removeDead. Operand has 525 places, 553 transitions, 1134 flow [2023-11-30 00:20:00,901 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 525 places, 553 transitions, 1134 flow [2023-11-30 00:20:00,901 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 00:20:00,902 INFO L362 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@5209ccd6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 00:20:00,902 INFO L363 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2023-11-30 00:20:00,905 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 00:20:00,905 INFO L124 PetriNetUnfolderBase]: 3/78 cut-off events. [2023-11-30 00:20:00,905 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-30 00:20:00,905 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 00:20:00,905 INFO L232 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-30 00:20:00,905 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err6ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-30 00:20:00,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 00:20:00,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1321030222, now seen corresponding path program 1 times [2023-11-30 00:20:00,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 00:20:00,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989336512] [2023-11-30 00:20:00,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 00:20:00,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 00:20:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 00:20:00,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 00:20:00,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 00:20:00,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989336512] [2023-11-30 00:20:00,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989336512] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 00:20:00,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 00:20:00,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 00:20:00,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984980229] [2023-11-30 00:20:00,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 00:20:00,930 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 00:20:00,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 00:20:00,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 00:20:00,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 00:20:00,931 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 387 out of 553 [2023-11-30 00:20:00,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 553 transitions, 1134 flow. Second operand has 3 states, 3 states have (on average 388.3333333333333) internal successors, (1165), 3 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 00:20:00,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 00:20:00,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 387 of 553 [2023-11-30 00:20:00,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand