./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid-join.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e58f19518df0581d95f13f906b8c44b8c282310d0c51162e45cefa58addde8de --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 07:06:06,842 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:06:06,917 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-09 07:06:06,921 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:06:06,922 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:06:06,952 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:06:06,955 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:06:06,956 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:06:06,957 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:06:06,959 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:06:06,959 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 07:06:06,960 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 07:06:06,960 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 07:06:06,961 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:06:06,964 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:06:06,964 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:06:06,964 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:06:06,965 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:06:06,965 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:06:06,965 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:06:06,965 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:06:06,966 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:06:06,966 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 07:06:06,966 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:06:06,966 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:06:06,967 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:06:06,967 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:06:06,967 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:06:06,967 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:06:06,968 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 07:06:06,968 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:06:06,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 07:06:06,968 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:06:06,969 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:06:06,969 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:06:06,970 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 07:06:06,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:06:06,971 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:06:06,971 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 07:06:06,971 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 07:06:06,972 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:06:06,972 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e58f19518df0581d95f13f906b8c44b8c282310d0c51162e45cefa58addde8de [2024-11-09 07:06:07,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:06:07,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:06:07,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:06:07,261 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:06:07,262 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:06:07,263 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid-join.i [2024-11-09 07:06:08,713 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:06:08,973 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:06:08,975 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-race-challenges/per-thread-struct-tid-join.i [2024-11-09 07:06:09,000 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdd1725f6/1ba93b003c6346a29ccd9dd3942b32b8/FLAG10103d167 [2024-11-09 07:06:09,292 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdd1725f6/1ba93b003c6346a29ccd9dd3942b32b8 [2024-11-09 07:06:09,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:06:09,295 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:06:09,296 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:06:09,297 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:06:09,301 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:06:09,301 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:06:09" (1/1) ... [2024-11-09 07:06:09,302 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c741999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:09, skipping insertion in model container [2024-11-09 07:06:09,302 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:06:09" (1/1) ... [2024-11-09 07:06:09,349 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:06:09,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:06:09,795 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:06:09,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:06:09,924 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:06:09,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:09 WrapperNode [2024-11-09 07:06:09,925 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:06:09,925 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:06:09,926 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:06:09,926 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:06:09,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:09" (1/1) ... [2024-11-09 07:06:09,949 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:09" (1/1) ... [2024-11-09 07:06:09,986 INFO L138 Inliner]: procedures = 267, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 94 [2024-11-09 07:06:09,987 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:06:09,987 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:06:09,987 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:06:09,988 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:06:09,996 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:09" (1/1) ... [2024-11-09 07:06:09,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:09" (1/1) ... [2024-11-09 07:06:10,004 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:09" (1/1) ... [2024-11-09 07:06:10,005 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:09" (1/1) ... [2024-11-09 07:06:10,014 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:09" (1/1) ... [2024-11-09 07:06:10,021 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:09" (1/1) ... [2024-11-09 07:06:10,024 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:09" (1/1) ... [2024-11-09 07:06:10,025 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:09" (1/1) ... [2024-11-09 07:06:10,030 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:06:10,031 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:06:10,031 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:06:10,031 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:06:10,032 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:09" (1/1) ... [2024-11-09 07:06:10,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 07:06:10,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:06:10,068 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 07:06:10,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 07:06:10,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 07:06:10,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:06:10,120 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 07:06:10,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:06:10,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:06:10,120 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 07:06:10,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 07:06:10,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:06:10,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 07:06:10,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:06:10,121 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2024-11-09 07:06:10,122 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2024-11-09 07:06:10,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:06:10,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:06:10,125 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 07:06:10,286 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:06:10,288 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:06:10,593 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 07:06:10,593 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:06:10,613 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:06:10,613 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 07:06:10,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:06:10 BoogieIcfgContainer [2024-11-09 07:06:10,613 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:06:10,616 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:06:10,616 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:06:10,621 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:06:10,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:06:09" (1/3) ... [2024-11-09 07:06:10,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d1ad7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:06:10, skipping insertion in model container [2024-11-09 07:06:10,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:06:09" (2/3) ... [2024-11-09 07:06:10,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d1ad7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:06:10, skipping insertion in model container [2024-11-09 07:06:10,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:06:10" (3/3) ... [2024-11-09 07:06:10,624 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-struct-tid-join.i [2024-11-09 07:06:10,639 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:06:10,639 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-09 07:06:10,640 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 07:06:10,694 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 07:06:10,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 121 transitions, 249 flow [2024-11-09 07:06:10,848 INFO L124 PetriNetUnfolderBase]: 6/174 cut-off events. [2024-11-09 07:06:10,849 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 07:06:10,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 174 events. 6/174 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 248 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 81. Up to 4 conditions per place. [2024-11-09 07:06:10,855 INFO L82 GeneralOperation]: Start removeDead. Operand has 120 places, 121 transitions, 249 flow [2024-11-09 07:06:10,859 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 121 transitions, 249 flow [2024-11-09 07:06:10,869 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:06:10,875 INFO L333 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, 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;@61177beb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:06:10,876 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-09 07:06:10,898 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:06:10,899 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-11-09 07:06:10,899 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:06:10,899 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:10,900 INFO L204 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] [2024-11-09 07:06:10,901 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:06:10,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:10,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1252820999, now seen corresponding path program 1 times [2024-11-09 07:06:10,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:10,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100832349] [2024-11-09 07:06:10,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:10,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:11,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:11,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:11,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100832349] [2024-11-09 07:06:11,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100832349] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:11,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:11,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:06:11,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511857504] [2024-11-09 07:06:11,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:11,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:11,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:11,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:11,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:11,268 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 121 [2024-11-09 07:06:11,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 121 transitions, 249 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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) [2024-11-09 07:06:11,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:11,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 121 [2024-11-09 07:06:11,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:11,376 INFO L124 PetriNetUnfolderBase]: 8/212 cut-off events. [2024-11-09 07:06:11,376 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2024-11-09 07:06:11,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246 conditions, 212 events. 8/212 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 526 event pairs, 1 based on Foata normal form. 8/197 useless extension candidates. Maximal degree in co-relation 142. Up to 16 conditions per place. [2024-11-09 07:06:11,379 INFO L140 encePairwiseOnDemand]: 114/121 looper letters, 8 selfloop transitions, 3 changer transitions 2/122 dead transitions. [2024-11-09 07:06:11,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 122 transitions, 275 flow [2024-11-09 07:06:11,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:11,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:06:11,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2024-11-09 07:06:11,394 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.953168044077135 [2024-11-09 07:06:11,396 INFO L175 Difference]: Start difference. First operand has 120 places, 121 transitions, 249 flow. Second operand 3 states and 346 transitions. [2024-11-09 07:06:11,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 122 transitions, 275 flow [2024-11-09 07:06:11,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 122 transitions, 275 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 07:06:11,404 INFO L231 Difference]: Finished difference. Result has 124 places, 119 transitions, 263 flow [2024-11-09 07:06:11,407 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=263, PETRI_PLACES=124, PETRI_TRANSITIONS=119} [2024-11-09 07:06:11,413 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 4 predicate places. [2024-11-09 07:06:11,414 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 119 transitions, 263 flow [2024-11-09 07:06:11,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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) [2024-11-09 07:06:11,415 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:11,415 INFO L204 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] [2024-11-09 07:06:11,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:06:11,415 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:06:11,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:11,416 INFO L85 PathProgramCache]: Analyzing trace with hash 419048417, now seen corresponding path program 1 times [2024-11-09 07:06:11,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:11,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969979952] [2024-11-09 07:06:11,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:11,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:11,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:11,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:11,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969979952] [2024-11-09 07:06:11,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969979952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:11,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:11,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:06:11,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507622613] [2024-11-09 07:06:11,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:11,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:06:11,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:11,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:06:11,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:06:11,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 121 [2024-11-09 07:06:11,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 119 transitions, 263 flow. Second operand has 5 states, 5 states have (on average 104.4) internal successors, (522), 5 states have internal predecessors, (522), 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) [2024-11-09 07:06:11,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:11,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 121 [2024-11-09 07:06:11,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:11,936 INFO L124 PetriNetUnfolderBase]: 17/323 cut-off events. [2024-11-09 07:06:11,937 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-09 07:06:11,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 323 events. 17/323 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1142 event pairs, 1 based on Foata normal form. 1/299 useless extension candidates. Maximal degree in co-relation 311. Up to 49 conditions per place. [2024-11-09 07:06:11,941 INFO L140 encePairwiseOnDemand]: 113/121 looper letters, 15 selfloop transitions, 2 changer transitions 5/126 dead transitions. [2024-11-09 07:06:11,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 126 transitions, 321 flow [2024-11-09 07:06:11,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:06:11,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:06:11,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 641 transitions. [2024-11-09 07:06:11,947 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8829201101928374 [2024-11-09 07:06:11,951 INFO L175 Difference]: Start difference. First operand has 124 places, 119 transitions, 263 flow. Second operand 6 states and 641 transitions. [2024-11-09 07:06:11,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 126 transitions, 321 flow [2024-11-09 07:06:11,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 126 transitions, 315 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:06:11,958 INFO L231 Difference]: Finished difference. Result has 130 places, 119 transitions, 275 flow [2024-11-09 07:06:11,958 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=275, PETRI_PLACES=130, PETRI_TRANSITIONS=119} [2024-11-09 07:06:11,959 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 10 predicate places. [2024-11-09 07:06:11,960 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 119 transitions, 275 flow [2024-11-09 07:06:11,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.4) internal successors, (522), 5 states have internal predecessors, (522), 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) [2024-11-09 07:06:11,960 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:11,961 INFO L204 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] [2024-11-09 07:06:11,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:06:11,961 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:06:11,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:11,963 INFO L85 PathProgramCache]: Analyzing trace with hash -182679660, now seen corresponding path program 1 times [2024-11-09 07:06:11,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:11,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841465070] [2024-11-09 07:06:11,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:11,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:12,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:12,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:12,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:12,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841465070] [2024-11-09 07:06:12,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841465070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:12,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:12,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:06:12,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39190754] [2024-11-09 07:06:12,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:12,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:06:12,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:12,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:06:12,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:06:12,815 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 121 [2024-11-09 07:06:12,816 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 119 transitions, 275 flow. Second operand has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 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) [2024-11-09 07:06:12,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:12,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 121 [2024-11-09 07:06:12,817 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:12,907 INFO L124 PetriNetUnfolderBase]: 46/420 cut-off events. [2024-11-09 07:06:12,908 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-09 07:06:12,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 420 events. 46/420 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1893 event pairs, 35 based on Foata normal form. 0/380 useless extension candidates. Maximal degree in co-relation 510. Up to 117 conditions per place. [2024-11-09 07:06:12,914 INFO L140 encePairwiseOnDemand]: 115/121 looper letters, 36 selfloop transitions, 5 changer transitions 0/126 dead transitions. [2024-11-09 07:06:12,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 126 transitions, 371 flow [2024-11-09 07:06:12,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:06:12,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:06:12,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 546 transitions. [2024-11-09 07:06:12,920 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7520661157024794 [2024-11-09 07:06:12,920 INFO L175 Difference]: Start difference. First operand has 130 places, 119 transitions, 275 flow. Second operand 6 states and 546 transitions. [2024-11-09 07:06:12,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 126 transitions, 371 flow [2024-11-09 07:06:12,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 126 transitions, 357 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-09 07:06:12,926 INFO L231 Difference]: Finished difference. Result has 126 places, 118 transitions, 269 flow [2024-11-09 07:06:12,928 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=269, PETRI_PLACES=126, PETRI_TRANSITIONS=118} [2024-11-09 07:06:12,929 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 6 predicate places. [2024-11-09 07:06:12,929 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 118 transitions, 269 flow [2024-11-09 07:06:12,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 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) [2024-11-09 07:06:12,929 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:12,930 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:12,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:06:12,931 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:06:12,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:12,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1297227942, now seen corresponding path program 1 times [2024-11-09 07:06:12,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:12,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124732207] [2024-11-09 07:06:12,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:12,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:13,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:13,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:13,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124732207] [2024-11-09 07:06:13,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124732207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:13,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:13,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:06:13,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844036815] [2024-11-09 07:06:13,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:13,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:06:13,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:13,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:06:13,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:06:13,496 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 121 [2024-11-09 07:06:13,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 118 transitions, 269 flow. Second operand has 6 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 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) [2024-11-09 07:06:13,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:13,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 121 [2024-11-09 07:06:13,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:13,569 INFO L124 PetriNetUnfolderBase]: 46/346 cut-off events. [2024-11-09 07:06:13,569 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-09 07:06:13,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 540 conditions, 346 events. 46/346 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1567 event pairs, 19 based on Foata normal form. 0/326 useless extension candidates. Maximal degree in co-relation 407. Up to 112 conditions per place. [2024-11-09 07:06:13,571 INFO L140 encePairwiseOnDemand]: 115/121 looper letters, 34 selfloop transitions, 5 changer transitions 0/125 dead transitions. [2024-11-09 07:06:13,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 125 transitions, 361 flow [2024-11-09 07:06:13,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:06:13,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:06:13,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 556 transitions. [2024-11-09 07:06:13,574 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7658402203856749 [2024-11-09 07:06:13,575 INFO L175 Difference]: Start difference. First operand has 126 places, 118 transitions, 269 flow. Second operand 6 states and 556 transitions. [2024-11-09 07:06:13,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 125 transitions, 361 flow [2024-11-09 07:06:13,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 125 transitions, 351 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 07:06:13,579 INFO L231 Difference]: Finished difference. Result has 125 places, 117 transitions, 267 flow [2024-11-09 07:06:13,580 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=267, PETRI_PLACES=125, PETRI_TRANSITIONS=117} [2024-11-09 07:06:13,581 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 5 predicate places. [2024-11-09 07:06:13,581 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 117 transitions, 267 flow [2024-11-09 07:06:13,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 88.0) internal successors, (528), 6 states have internal predecessors, (528), 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) [2024-11-09 07:06:13,582 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:13,582 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:13,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:06:13,583 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:06:13,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:13,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1602367110, now seen corresponding path program 1 times [2024-11-09 07:06:13,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:13,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018792940] [2024-11-09 07:06:13,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:13,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:13,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:13,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:13,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:13,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018792940] [2024-11-09 07:06:13,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018792940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:13,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:13,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:06:13,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249816949] [2024-11-09 07:06:13,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:13,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:13,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:13,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:13,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:13,649 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 121 [2024-11-09 07:06:13,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 117 transitions, 267 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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) [2024-11-09 07:06:13,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:13,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 121 [2024-11-09 07:06:13,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:13,681 INFO L124 PetriNetUnfolderBase]: 5/216 cut-off events. [2024-11-09 07:06:13,682 INFO L125 PetriNetUnfolderBase]: For 18/31 co-relation queries the response was YES. [2024-11-09 07:06:13,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 216 events. 5/216 cut-off events. For 18/31 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 593 event pairs, 3 based on Foata normal form. 1/202 useless extension candidates. Maximal degree in co-relation 212. Up to 25 conditions per place. [2024-11-09 07:06:13,683 INFO L140 encePairwiseOnDemand]: 116/121 looper letters, 8 selfloop transitions, 4 changer transitions 3/120 dead transitions. [2024-11-09 07:06:13,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 120 transitions, 303 flow [2024-11-09 07:06:13,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:13,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:06:13,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 338 transitions. [2024-11-09 07:06:13,684 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.931129476584022 [2024-11-09 07:06:13,684 INFO L175 Difference]: Start difference. First operand has 125 places, 117 transitions, 267 flow. Second operand 3 states and 338 transitions. [2024-11-09 07:06:13,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 120 transitions, 303 flow [2024-11-09 07:06:13,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 120 transitions, 293 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 07:06:13,688 INFO L231 Difference]: Finished difference. Result has 124 places, 117 transitions, 279 flow [2024-11-09 07:06:13,688 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=279, PETRI_PLACES=124, PETRI_TRANSITIONS=117} [2024-11-09 07:06:13,691 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 4 predicate places. [2024-11-09 07:06:13,691 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 117 transitions, 279 flow [2024-11-09 07:06:13,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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) [2024-11-09 07:06:13,692 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:13,692 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:13,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:06:13,692 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:06:13,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:13,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1005027146, now seen corresponding path program 1 times [2024-11-09 07:06:13,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:13,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97762421] [2024-11-09 07:06:13,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:13,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:13,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:14,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:06:14,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:14,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97762421] [2024-11-09 07:06:14,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97762421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:14,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:14,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:06:14,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680532354] [2024-11-09 07:06:14,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:14,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:06:14,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:14,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:06:14,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:06:14,341 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 121 [2024-11-09 07:06:14,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 117 transitions, 279 flow. Second operand has 6 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 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) [2024-11-09 07:06:14,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:14,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 121 [2024-11-09 07:06:14,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:14,412 INFO L124 PetriNetUnfolderBase]: 33/406 cut-off events. [2024-11-09 07:06:14,412 INFO L125 PetriNetUnfolderBase]: For 66/69 co-relation queries the response was YES. [2024-11-09 07:06:14,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 635 conditions, 406 events. 33/406 cut-off events. For 66/69 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1839 event pairs, 23 based on Foata normal form. 0/391 useless extension candidates. Maximal degree in co-relation 511. Up to 79 conditions per place. [2024-11-09 07:06:14,416 INFO L140 encePairwiseOnDemand]: 114/121 looper letters, 31 selfloop transitions, 5 changer transitions 0/123 dead transitions. [2024-11-09 07:06:14,416 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 123 transitions, 363 flow [2024-11-09 07:06:14,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:06:14,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:06:14,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 566 transitions. [2024-11-09 07:06:14,418 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7796143250688705 [2024-11-09 07:06:14,419 INFO L175 Difference]: Start difference. First operand has 124 places, 117 transitions, 279 flow. Second operand 6 states and 566 transitions. [2024-11-09 07:06:14,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 123 transitions, 363 flow [2024-11-09 07:06:14,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 123 transitions, 355 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:06:14,424 INFO L231 Difference]: Finished difference. Result has 125 places, 115 transitions, 277 flow [2024-11-09 07:06:14,425 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=277, PETRI_PLACES=125, PETRI_TRANSITIONS=115} [2024-11-09 07:06:14,426 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 5 predicate places. [2024-11-09 07:06:14,427 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 115 transitions, 277 flow [2024-11-09 07:06:14,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 90.83333333333333) internal successors, (545), 6 states have internal predecessors, (545), 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) [2024-11-09 07:06:14,427 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:14,428 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:14,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 07:06:14,428 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:06:14,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:14,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1993570666, now seen corresponding path program 1 times [2024-11-09 07:06:14,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:14,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805931838] [2024-11-09 07:06:14,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:14,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:14,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:14,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:14,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805931838] [2024-11-09 07:06:14,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805931838] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:06:14,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259237504] [2024-11-09 07:06:14,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:14,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:06:14,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:06:14,554 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:06:14,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:06:14,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:14,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:06:14,679 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:06:14,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:14,790 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:06:14,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:14,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259237504] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:06:14,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:06:14,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-09 07:06:14,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380129823] [2024-11-09 07:06:14,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:06:14,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 07:06:14,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:14,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 07:06:14,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:06:15,121 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 121 [2024-11-09 07:06:15,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 115 transitions, 277 flow. Second operand has 9 states, 9 states have (on average 103.22222222222223) internal successors, (929), 9 states have internal predecessors, (929), 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) [2024-11-09 07:06:15,123 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:15,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 121 [2024-11-09 07:06:15,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:15,225 INFO L124 PetriNetUnfolderBase]: 12/243 cut-off events. [2024-11-09 07:06:15,225 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-09 07:06:15,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 243 events. 12/243 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 615 event pairs, 0 based on Foata normal form. 0/235 useless extension candidates. Maximal degree in co-relation 219. Up to 18 conditions per place. [2024-11-09 07:06:15,227 INFO L140 encePairwiseOnDemand]: 111/121 looper letters, 14 selfloop transitions, 8 changer transitions 9/119 dead transitions. [2024-11-09 07:06:15,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 119 transitions, 323 flow [2024-11-09 07:06:15,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 07:06:15,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 07:06:15,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 834 transitions. [2024-11-09 07:06:15,230 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8615702479338843 [2024-11-09 07:06:15,230 INFO L175 Difference]: Start difference. First operand has 125 places, 115 transitions, 277 flow. Second operand 8 states and 834 transitions. [2024-11-09 07:06:15,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 119 transitions, 323 flow [2024-11-09 07:06:15,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 119 transitions, 299 flow, removed 4 selfloop flow, removed 9 redundant places. [2024-11-09 07:06:15,234 INFO L231 Difference]: Finished difference. Result has 123 places, 104 transitions, 247 flow [2024-11-09 07:06:15,234 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=247, PETRI_PLACES=123, PETRI_TRANSITIONS=104} [2024-11-09 07:06:15,235 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, 3 predicate places. [2024-11-09 07:06:15,235 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 104 transitions, 247 flow [2024-11-09 07:06:15,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 103.22222222222223) internal successors, (929), 9 states have internal predecessors, (929), 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) [2024-11-09 07:06:15,236 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:15,236 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:15,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 07:06:15,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:06:15,438 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:06:15,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:15,438 INFO L85 PathProgramCache]: Analyzing trace with hash -191687227, now seen corresponding path program 1 times [2024-11-09 07:06:15,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:15,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447061975] [2024-11-09 07:06:15,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:15,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:15,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:06:15,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:15,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447061975] [2024-11-09 07:06:15,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447061975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:15,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:15,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:06:15,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030211162] [2024-11-09 07:06:15,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:15,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:06:15,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:15,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:06:15,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:06:16,026 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 121 [2024-11-09 07:06:16,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 104 transitions, 247 flow. Second operand has 6 states, 6 states have (on average 98.66666666666667) internal successors, (592), 6 states have internal predecessors, (592), 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) [2024-11-09 07:06:16,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:16,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 121 [2024-11-09 07:06:16,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:16,089 INFO L124 PetriNetUnfolderBase]: 28/299 cut-off events. [2024-11-09 07:06:16,089 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-09 07:06:16,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 299 events. 28/299 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1047 event pairs, 18 based on Foata normal form. 0/294 useless extension candidates. Maximal degree in co-relation 305. Up to 60 conditions per place. [2024-11-09 07:06:16,090 INFO L140 encePairwiseOnDemand]: 115/121 looper letters, 12 selfloop transitions, 0 changer transitions 39/111 dead transitions. [2024-11-09 07:06:16,091 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 111 transitions, 317 flow [2024-11-09 07:06:16,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:06:16,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:06:16,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 605 transitions. [2024-11-09 07:06:16,093 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2024-11-09 07:06:16,093 INFO L175 Difference]: Start difference. First operand has 123 places, 104 transitions, 247 flow. Second operand 6 states and 605 transitions. [2024-11-09 07:06:16,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 111 transitions, 317 flow [2024-11-09 07:06:16,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 111 transitions, 306 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-09 07:06:16,095 INFO L231 Difference]: Finished difference. Result has 113 places, 72 transitions, 156 flow [2024-11-09 07:06:16,096 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=156, PETRI_PLACES=113, PETRI_TRANSITIONS=72} [2024-11-09 07:06:16,096 INFO L277 CegarLoopForPetriNet]: 120 programPoint places, -7 predicate places. [2024-11-09 07:06:16,096 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 72 transitions, 156 flow [2024-11-09 07:06:16,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.66666666666667) internal successors, (592), 6 states have internal predecessors, (592), 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) [2024-11-09 07:06:16,097 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:16,097 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:16,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 07:06:16,097 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-09 07:06:16,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:16,098 INFO L85 PathProgramCache]: Analyzing trace with hash -751275198, now seen corresponding path program 1 times [2024-11-09 07:06:16,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:16,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821472851] [2024-11-09 07:06:16,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:16,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:06:16,133 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:06:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:06:16,188 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:06:16,188 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:06:16,190 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2024-11-09 07:06:16,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-09 07:06:16,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-09 07:06:16,193 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-09 07:06:16,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2024-11-09 07:06:16,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-09 07:06:16,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-09 07:06:16,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-09 07:06:16,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-09 07:06:16,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 07:06:16,195 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:16,198 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:06:16,198 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-09 07:06:16,220 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 07:06:16,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 139 transitions, 294 flow [2024-11-09 07:06:16,247 INFO L124 PetriNetUnfolderBase]: 11/308 cut-off events. [2024-11-09 07:06:16,248 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-09 07:06:16,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 308 events. 11/308 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 578 event pairs, 0 based on Foata normal form. 0/270 useless extension candidates. Maximal degree in co-relation 176. Up to 8 conditions per place. [2024-11-09 07:06:16,249 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 139 transitions, 294 flow [2024-11-09 07:06:16,250 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 139 transitions, 294 flow [2024-11-09 07:06:16,251 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:06:16,252 INFO L333 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, 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;@61177beb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:06:16,252 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-09 07:06:16,255 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:06:16,255 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-11-09 07:06:16,255 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:06:16,256 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:16,256 INFO L204 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] [2024-11-09 07:06:16,256 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 07:06:16,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:16,256 INFO L85 PathProgramCache]: Analyzing trace with hash 800780135, now seen corresponding path program 1 times [2024-11-09 07:06:16,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:16,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404822994] [2024-11-09 07:06:16,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:16,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:16,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:16,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:16,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404822994] [2024-11-09 07:06:16,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404822994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:16,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:16,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:06:16,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665767366] [2024-11-09 07:06:16,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:16,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:16,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:16,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:16,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:16,291 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 139 [2024-11-09 07:06:16,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 139 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 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) [2024-11-09 07:06:16,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:16,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 139 [2024-11-09 07:06:16,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:16,398 INFO L124 PetriNetUnfolderBase]: 119/878 cut-off events. [2024-11-09 07:06:16,399 INFO L125 PetriNetUnfolderBase]: For 72/115 co-relation queries the response was YES. [2024-11-09 07:06:16,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1150 conditions, 878 events. 119/878 cut-off events. For 72/115 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 4812 event pairs, 50 based on Foata normal form. 36/808 useless extension candidates. Maximal degree in co-relation 837. Up to 139 conditions per place. [2024-11-09 07:06:16,405 INFO L140 encePairwiseOnDemand]: 131/139 looper letters, 16 selfloop transitions, 4 changer transitions 1/143 dead transitions. [2024-11-09 07:06:16,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 143 transitions, 342 flow [2024-11-09 07:06:16,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:16,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:06:16,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 393 transitions. [2024-11-09 07:06:16,408 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9424460431654677 [2024-11-09 07:06:16,408 INFO L175 Difference]: Start difference. First operand has 139 places, 139 transitions, 294 flow. Second operand 3 states and 393 transitions. [2024-11-09 07:06:16,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 143 transitions, 342 flow [2024-11-09 07:06:16,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 143 transitions, 342 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 07:06:16,411 INFO L231 Difference]: Finished difference. Result has 143 places, 138 transitions, 316 flow [2024-11-09 07:06:16,411 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=316, PETRI_PLACES=143, PETRI_TRANSITIONS=138} [2024-11-09 07:06:16,412 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 4 predicate places. [2024-11-09 07:06:16,412 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 138 transitions, 316 flow [2024-11-09 07:06:16,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 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) [2024-11-09 07:06:16,413 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:16,413 INFO L204 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] [2024-11-09 07:06:16,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 07:06:16,413 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 07:06:16,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:16,413 INFO L85 PathProgramCache]: Analyzing trace with hash -200520543, now seen corresponding path program 1 times [2024-11-09 07:06:16,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:16,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955743750] [2024-11-09 07:06:16,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:16,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:16,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:16,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:16,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955743750] [2024-11-09 07:06:16,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955743750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:16,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:16,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:06:16,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326713121] [2024-11-09 07:06:16,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:16,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:06:16,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:16,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:06:16,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:06:16,604 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 139 [2024-11-09 07:06:16,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 138 transitions, 316 flow. Second operand has 5 states, 5 states have (on average 118.4) internal successors, (592), 5 states have internal predecessors, (592), 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) [2024-11-09 07:06:16,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:16,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 139 [2024-11-09 07:06:16,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:16,817 INFO L124 PetriNetUnfolderBase]: 189/1374 cut-off events. [2024-11-09 07:06:16,818 INFO L125 PetriNetUnfolderBase]: For 72/73 co-relation queries the response was YES. [2024-11-09 07:06:16,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1874 conditions, 1374 events. 189/1374 cut-off events. For 72/73 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 9468 event pairs, 131 based on Foata normal form. 1/1256 useless extension candidates. Maximal degree in co-relation 1273. Up to 314 conditions per place. [2024-11-09 07:06:16,828 INFO L140 encePairwiseOnDemand]: 131/139 looper letters, 20 selfloop transitions, 2 changer transitions 5/146 dead transitions. [2024-11-09 07:06:16,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 146 transitions, 386 flow [2024-11-09 07:06:16,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:06:16,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:06:16,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 730 transitions. [2024-11-09 07:06:16,831 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8752997601918465 [2024-11-09 07:06:16,831 INFO L175 Difference]: Start difference. First operand has 143 places, 138 transitions, 316 flow. Second operand 6 states and 730 transitions. [2024-11-09 07:06:16,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 146 transitions, 386 flow [2024-11-09 07:06:16,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 146 transitions, 378 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:06:16,835 INFO L231 Difference]: Finished difference. Result has 149 places, 139 transitions, 330 flow [2024-11-09 07:06:16,835 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=330, PETRI_PLACES=149, PETRI_TRANSITIONS=139} [2024-11-09 07:06:16,836 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 10 predicate places. [2024-11-09 07:06:16,836 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 139 transitions, 330 flow [2024-11-09 07:06:16,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 118.4) internal successors, (592), 5 states have internal predecessors, (592), 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) [2024-11-09 07:06:16,837 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:16,837 INFO L204 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] [2024-11-09 07:06:16,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 07:06:16,838 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 07:06:16,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:16,838 INFO L85 PathProgramCache]: Analyzing trace with hash 2085519199, now seen corresponding path program 1 times [2024-11-09 07:06:16,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:16,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443619981] [2024-11-09 07:06:16,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:16,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:17,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:17,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:17,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443619981] [2024-11-09 07:06:17,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443619981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:17,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:17,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:06:17,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994735826] [2024-11-09 07:06:17,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:17,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:06:17,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:17,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:06:17,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:06:17,198 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 139 [2024-11-09 07:06:17,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 139 transitions, 330 flow. Second operand has 6 states, 6 states have (on average 99.5) internal successors, (597), 6 states have internal predecessors, (597), 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) [2024-11-09 07:06:17,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:17,200 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 139 [2024-11-09 07:06:17,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:17,532 INFO L124 PetriNetUnfolderBase]: 448/2416 cut-off events. [2024-11-09 07:06:17,533 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2024-11-09 07:06:17,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3521 conditions, 2416 events. 448/2416 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 20025 event pairs, 342 based on Foata normal form. 0/2149 useless extension candidates. Maximal degree in co-relation 3409. Up to 657 conditions per place. [2024-11-09 07:06:17,551 INFO L140 encePairwiseOnDemand]: 133/139 looper letters, 49 selfloop transitions, 5 changer transitions 0/154 dead transitions. [2024-11-09 07:06:17,552 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 154 transitions, 468 flow [2024-11-09 07:06:17,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:06:17,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:06:17,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 642 transitions. [2024-11-09 07:06:17,554 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7697841726618705 [2024-11-09 07:06:17,554 INFO L175 Difference]: Start difference. First operand has 149 places, 139 transitions, 330 flow. Second operand 6 states and 642 transitions. [2024-11-09 07:06:17,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 154 transitions, 468 flow [2024-11-09 07:06:17,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 154 transitions, 456 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-09 07:06:17,558 INFO L231 Difference]: Finished difference. Result has 146 places, 138 transitions, 326 flow [2024-11-09 07:06:17,559 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=326, PETRI_PLACES=146, PETRI_TRANSITIONS=138} [2024-11-09 07:06:17,559 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 7 predicate places. [2024-11-09 07:06:17,559 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 138 transitions, 326 flow [2024-11-09 07:06:17,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 99.5) internal successors, (597), 6 states have internal predecessors, (597), 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) [2024-11-09 07:06:17,560 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:17,560 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:17,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 07:06:17,561 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 07:06:17,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:17,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1065155985, now seen corresponding path program 1 times [2024-11-09 07:06:17,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:17,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323339194] [2024-11-09 07:06:17,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:17,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:17,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:17,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:17,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323339194] [2024-11-09 07:06:17,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323339194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:17,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:17,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:06:17,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820592839] [2024-11-09 07:06:17,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:17,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:06:17,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:17,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:06:17,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:06:17,942 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 139 [2024-11-09 07:06:17,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 138 transitions, 326 flow. Second operand has 6 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 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) [2024-11-09 07:06:17,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:17,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 139 [2024-11-09 07:06:17,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:18,230 INFO L124 PetriNetUnfolderBase]: 446/2418 cut-off events. [2024-11-09 07:06:18,230 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-11-09 07:06:18,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3494 conditions, 2418 events. 446/2418 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 20034 event pairs, 264 based on Foata normal form. 0/2139 useless extension candidates. Maximal degree in co-relation 2137. Up to 633 conditions per place. [2024-11-09 07:06:18,248 INFO L140 encePairwiseOnDemand]: 133/139 looper letters, 46 selfloop transitions, 5 changer transitions 0/153 dead transitions. [2024-11-09 07:06:18,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 153 transitions, 458 flow [2024-11-09 07:06:18,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:06:18,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:06:18,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 652 transitions. [2024-11-09 07:06:18,251 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7817745803357314 [2024-11-09 07:06:18,251 INFO L175 Difference]: Start difference. First operand has 146 places, 138 transitions, 326 flow. Second operand 6 states and 652 transitions. [2024-11-09 07:06:18,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 153 transitions, 458 flow [2024-11-09 07:06:18,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 153 transitions, 448 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 07:06:18,255 INFO L231 Difference]: Finished difference. Result has 145 places, 137 transitions, 324 flow [2024-11-09 07:06:18,256 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=145, PETRI_TRANSITIONS=137} [2024-11-09 07:06:18,257 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 6 predicate places. [2024-11-09 07:06:18,257 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 137 transitions, 324 flow [2024-11-09 07:06:18,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 102.0) internal successors, (612), 6 states have internal predecessors, (612), 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) [2024-11-09 07:06:18,258 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:18,258 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:18,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 07:06:18,258 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 07:06:18,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:18,259 INFO L85 PathProgramCache]: Analyzing trace with hash 481607029, now seen corresponding path program 1 times [2024-11-09 07:06:18,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:18,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779147377] [2024-11-09 07:06:18,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:18,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:18,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:18,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:18,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:18,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779147377] [2024-11-09 07:06:18,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779147377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:18,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:18,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:06:18,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243276589] [2024-11-09 07:06:18,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:18,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:18,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:18,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:18,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:18,321 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 139 [2024-11-09 07:06:18,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 137 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2024-11-09 07:06:18,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:18,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 139 [2024-11-09 07:06:18,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:18,442 INFO L124 PetriNetUnfolderBase]: 165/1189 cut-off events. [2024-11-09 07:06:18,442 INFO L125 PetriNetUnfolderBase]: For 192/359 co-relation queries the response was YES. [2024-11-09 07:06:18,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1757 conditions, 1189 events. 165/1189 cut-off events. For 192/359 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 8130 event pairs, 88 based on Foata normal form. 3/1059 useless extension candidates. Maximal degree in co-relation 1425. Up to 269 conditions per place. [2024-11-09 07:06:18,450 INFO L140 encePairwiseOnDemand]: 133/139 looper letters, 19 selfloop transitions, 7 changer transitions 0/146 dead transitions. [2024-11-09 07:06:18,451 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 146 transitions, 408 flow [2024-11-09 07:06:18,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:18,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:06:18,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 387 transitions. [2024-11-09 07:06:18,452 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9280575539568345 [2024-11-09 07:06:18,452 INFO L175 Difference]: Start difference. First operand has 145 places, 137 transitions, 324 flow. Second operand 3 states and 387 transitions. [2024-11-09 07:06:18,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 146 transitions, 408 flow [2024-11-09 07:06:18,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 146 transitions, 398 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 07:06:18,456 INFO L231 Difference]: Finished difference. Result has 144 places, 142 transitions, 370 flow [2024-11-09 07:06:18,456 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=370, PETRI_PLACES=144, PETRI_TRANSITIONS=142} [2024-11-09 07:06:18,457 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 5 predicate places. [2024-11-09 07:06:18,458 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 142 transitions, 370 flow [2024-11-09 07:06:18,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2024-11-09 07:06:18,458 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:18,458 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:18,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 07:06:18,459 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 07:06:18,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:18,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1752921541, now seen corresponding path program 1 times [2024-11-09 07:06:18,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:18,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423959075] [2024-11-09 07:06:18,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:18,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:18,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:06:18,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:18,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423959075] [2024-11-09 07:06:18,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423959075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:18,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:18,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:06:18,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711092745] [2024-11-09 07:06:18,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:18,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:06:18,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:18,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:06:18,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:06:18,925 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 102 out of 139 [2024-11-09 07:06:18,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 142 transitions, 370 flow. Second operand has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 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) [2024-11-09 07:06:18,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:18,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 102 of 139 [2024-11-09 07:06:18,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:19,275 INFO L124 PetriNetUnfolderBase]: 463/2595 cut-off events. [2024-11-09 07:06:19,275 INFO L125 PetriNetUnfolderBase]: For 408/466 co-relation queries the response was YES. [2024-11-09 07:06:19,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4121 conditions, 2595 events. 463/2595 cut-off events. For 408/466 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 22408 event pairs, 251 based on Foata normal form. 3/2378 useless extension candidates. Maximal degree in co-relation 3254. Up to 490 conditions per place. [2024-11-09 07:06:19,292 INFO L140 encePairwiseOnDemand]: 132/139 looper letters, 43 selfloop transitions, 5 changer transitions 0/156 dead transitions. [2024-11-09 07:06:19,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 156 transitions, 494 flow [2024-11-09 07:06:19,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:06:19,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:06:19,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 662 transitions. [2024-11-09 07:06:19,295 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7937649880095923 [2024-11-09 07:06:19,295 INFO L175 Difference]: Start difference. First operand has 144 places, 142 transitions, 370 flow. Second operand 6 states and 662 transitions. [2024-11-09 07:06:19,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 156 transitions, 494 flow [2024-11-09 07:06:19,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 156 transitions, 480 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:06:19,300 INFO L231 Difference]: Finished difference. Result has 145 places, 140 transitions, 362 flow [2024-11-09 07:06:19,301 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=362, PETRI_PLACES=145, PETRI_TRANSITIONS=140} [2024-11-09 07:06:19,303 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 6 predicate places. [2024-11-09 07:06:19,303 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 140 transitions, 362 flow [2024-11-09 07:06:19,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 104.83333333333333) internal successors, (629), 6 states have internal predecessors, (629), 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) [2024-11-09 07:06:19,303 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:19,304 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:19,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 07:06:19,304 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 07:06:19,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:19,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1171198917, now seen corresponding path program 1 times [2024-11-09 07:06:19,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:19,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885615426] [2024-11-09 07:06:19,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:19,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:19,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:19,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:19,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:19,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885615426] [2024-11-09 07:06:19,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885615426] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:06:19,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291580801] [2024-11-09 07:06:19,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:19,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:06:19,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:06:19,396 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:06:19,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 07:06:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:19,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:06:19,516 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:06:19,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:19,585 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:06:19,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:19,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291580801] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:06:19,652 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:06:19,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-09 07:06:19,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410298259] [2024-11-09 07:06:19,652 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:06:19,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 07:06:19,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:19,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 07:06:19,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:06:19,853 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 139 [2024-11-09 07:06:19,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 140 transitions, 362 flow. Second operand has 9 states, 9 states have (on average 117.22222222222223) internal successors, (1055), 9 states have internal predecessors, (1055), 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) [2024-11-09 07:06:19,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:19,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 139 [2024-11-09 07:06:19,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:20,058 INFO L124 PetriNetUnfolderBase]: 162/1358 cut-off events. [2024-11-09 07:06:20,058 INFO L125 PetriNetUnfolderBase]: For 135/158 co-relation queries the response was YES. [2024-11-09 07:06:20,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1990 conditions, 1358 events. 162/1358 cut-off events. For 135/158 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 8998 event pairs, 60 based on Foata normal form. 0/1268 useless extension candidates. Maximal degree in co-relation 1029. Up to 161 conditions per place. [2024-11-09 07:06:20,067 INFO L140 encePairwiseOnDemand]: 129/139 looper letters, 32 selfloop transitions, 10 changer transitions 3/162 dead transitions. [2024-11-09 07:06:20,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 162 transitions, 500 flow [2024-11-09 07:06:20,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 07:06:20,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 07:06:20,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 966 transitions. [2024-11-09 07:06:20,070 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8687050359712231 [2024-11-09 07:06:20,070 INFO L175 Difference]: Start difference. First operand has 145 places, 140 transitions, 362 flow. Second operand 8 states and 966 transitions. [2024-11-09 07:06:20,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 162 transitions, 500 flow [2024-11-09 07:06:20,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 162 transitions, 488 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 07:06:20,074 INFO L231 Difference]: Finished difference. Result has 150 places, 142 transitions, 390 flow [2024-11-09 07:06:20,074 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=390, PETRI_PLACES=150, PETRI_TRANSITIONS=142} [2024-11-09 07:06:20,075 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 11 predicate places. [2024-11-09 07:06:20,075 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 142 transitions, 390 flow [2024-11-09 07:06:20,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 117.22222222222223) internal successors, (1055), 9 states have internal predecessors, (1055), 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) [2024-11-09 07:06:20,077 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:20,077 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:20,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 07:06:20,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-09 07:06:20,278 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 07:06:20,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:20,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1014058976, now seen corresponding path program 1 times [2024-11-09 07:06:20,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:20,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157531518] [2024-11-09 07:06:20,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:20,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:20,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:06:20,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:20,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157531518] [2024-11-09 07:06:20,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157531518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:20,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:20,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:06:20,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392450423] [2024-11-09 07:06:20,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:20,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:06:20,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:20,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:06:20,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:06:20,697 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 139 [2024-11-09 07:06:20,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 142 transitions, 390 flow. Second operand has 6 states, 6 states have (on average 112.66666666666667) internal successors, (676), 6 states have internal predecessors, (676), 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) [2024-11-09 07:06:20,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:20,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 139 [2024-11-09 07:06:20,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:20,918 INFO L124 PetriNetUnfolderBase]: 329/1886 cut-off events. [2024-11-09 07:06:20,919 INFO L125 PetriNetUnfolderBase]: For 151/186 co-relation queries the response was YES. [2024-11-09 07:06:20,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2951 conditions, 1886 events. 329/1886 cut-off events. For 151/186 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 14576 event pairs, 186 based on Foata normal form. 0/1757 useless extension candidates. Maximal degree in co-relation 2205. Up to 364 conditions per place. [2024-11-09 07:06:20,931 INFO L140 encePairwiseOnDemand]: 133/139 looper letters, 36 selfloop transitions, 5 changer transitions 1/157 dead transitions. [2024-11-09 07:06:20,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 157 transitions, 502 flow [2024-11-09 07:06:20,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:06:20,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:06:20,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 702 transitions. [2024-11-09 07:06:20,968 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.841726618705036 [2024-11-09 07:06:20,968 INFO L175 Difference]: Start difference. First operand has 150 places, 142 transitions, 390 flow. Second operand 6 states and 702 transitions. [2024-11-09 07:06:20,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 157 transitions, 502 flow [2024-11-09 07:06:20,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 157 transitions, 496 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 07:06:20,972 INFO L231 Difference]: Finished difference. Result has 151 places, 140 transitions, 387 flow [2024-11-09 07:06:20,972 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=387, PETRI_PLACES=151, PETRI_TRANSITIONS=140} [2024-11-09 07:06:20,973 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 12 predicate places. [2024-11-09 07:06:20,973 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 140 transitions, 387 flow [2024-11-09 07:06:20,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 112.66666666666667) internal successors, (676), 6 states have internal predecessors, (676), 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) [2024-11-09 07:06:20,974 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:20,974 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:20,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 07:06:20,974 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 07:06:20,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:20,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1969955840, now seen corresponding path program 1 times [2024-11-09 07:06:20,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:20,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922590718] [2024-11-09 07:06:20,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:20,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:21,021 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 07:06:21,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:21,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922590718] [2024-11-09 07:06:21,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922590718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:21,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:21,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:06:21,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443622984] [2024-11-09 07:06:21,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:21,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:21,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:21,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:21,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:21,038 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 139 [2024-11-09 07:06:21,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 140 transitions, 387 flow. Second operand has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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) [2024-11-09 07:06:21,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:21,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 139 [2024-11-09 07:06:21,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:21,139 INFO L124 PetriNetUnfolderBase]: 56/879 cut-off events. [2024-11-09 07:06:21,139 INFO L125 PetriNetUnfolderBase]: For 247/475 co-relation queries the response was YES. [2024-11-09 07:06:21,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1370 conditions, 879 events. 56/879 cut-off events. For 247/475 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5330 event pairs, 30 based on Foata normal form. 2/855 useless extension candidates. Maximal degree in co-relation 1192. Up to 119 conditions per place. [2024-11-09 07:06:21,146 INFO L140 encePairwiseOnDemand]: 133/139 looper letters, 19 selfloop transitions, 7 changer transitions 1/147 dead transitions. [2024-11-09 07:06:21,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 147 transitions, 464 flow [2024-11-09 07:06:21,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:21,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:06:21,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2024-11-09 07:06:21,149 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9256594724220624 [2024-11-09 07:06:21,149 INFO L175 Difference]: Start difference. First operand has 151 places, 140 transitions, 387 flow. Second operand 3 states and 386 transitions. [2024-11-09 07:06:21,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 147 transitions, 464 flow [2024-11-09 07:06:21,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 147 transitions, 454 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 07:06:21,152 INFO L231 Difference]: Finished difference. Result has 150 places, 143 transitions, 427 flow [2024-11-09 07:06:21,153 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=427, PETRI_PLACES=150, PETRI_TRANSITIONS=143} [2024-11-09 07:06:21,153 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 11 predicate places. [2024-11-09 07:06:21,153 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 143 transitions, 427 flow [2024-11-09 07:06:21,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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) [2024-11-09 07:06:21,154 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:21,154 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:21,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 07:06:21,154 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 07:06:21,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:21,155 INFO L85 PathProgramCache]: Analyzing trace with hash -2139877206, now seen corresponding path program 1 times [2024-11-09 07:06:21,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:21,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253160760] [2024-11-09 07:06:21,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:21,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:21,246 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 07:06:21,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:21,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253160760] [2024-11-09 07:06:21,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253160760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:21,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:21,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:06:21,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305695761] [2024-11-09 07:06:21,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:21,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:21,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:21,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:21,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:21,257 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 139 [2024-11-09 07:06:21,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 143 transitions, 427 flow. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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) [2024-11-09 07:06:21,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:21,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 139 [2024-11-09 07:06:21,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:21,323 INFO L124 PetriNetUnfolderBase]: 12/537 cut-off events. [2024-11-09 07:06:21,324 INFO L125 PetriNetUnfolderBase]: For 125/145 co-relation queries the response was YES. [2024-11-09 07:06:21,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 774 conditions, 537 events. 12/537 cut-off events. For 125/145 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2275 event pairs, 2 based on Foata normal form. 4/534 useless extension candidates. Maximal degree in co-relation 580. Up to 26 conditions per place. [2024-11-09 07:06:21,326 INFO L140 encePairwiseOnDemand]: 135/139 looper letters, 8 selfloop transitions, 4 changer transitions 4/144 dead transitions. [2024-11-09 07:06:21,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 144 transitions, 448 flow [2024-11-09 07:06:21,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:21,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:06:21,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2024-11-09 07:06:21,327 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.947242206235012 [2024-11-09 07:06:21,328 INFO L175 Difference]: Start difference. First operand has 150 places, 143 transitions, 427 flow. Second operand 3 states and 395 transitions. [2024-11-09 07:06:21,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 144 transitions, 448 flow [2024-11-09 07:06:21,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 144 transitions, 436 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-09 07:06:21,331 INFO L231 Difference]: Finished difference. Result has 150 places, 137 transitions, 387 flow [2024-11-09 07:06:21,331 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=139, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=387, PETRI_PLACES=150, PETRI_TRANSITIONS=137} [2024-11-09 07:06:21,332 INFO L277 CegarLoopForPetriNet]: 139 programPoint places, 11 predicate places. [2024-11-09 07:06:21,332 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 137 transitions, 387 flow [2024-11-09 07:06:21,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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) [2024-11-09 07:06:21,333 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:21,333 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:21,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 07:06:21,333 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2024-11-09 07:06:21,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:21,334 INFO L85 PathProgramCache]: Analyzing trace with hash -781949816, now seen corresponding path program 1 times [2024-11-09 07:06:21,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:21,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26238236] [2024-11-09 07:06:21,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:21,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:06:21,381 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:06:21,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:06:21,430 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:06:21,431 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:06:21,431 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-09 07:06:21,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2024-11-09 07:06:21,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2024-11-09 07:06:21,431 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2024-11-09 07:06:21,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2024-11-09 07:06:21,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 10 remaining) [2024-11-09 07:06:21,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2024-11-09 07:06:21,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2024-11-09 07:06:21,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2024-11-09 07:06:21,432 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2024-11-09 07:06:21,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 07:06:21,433 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:21,433 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:06:21,434 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-09 07:06:21,455 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-09 07:06:21,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 157 transitions, 341 flow [2024-11-09 07:06:21,505 INFO L124 PetriNetUnfolderBase]: 21/527 cut-off events. [2024-11-09 07:06:21,505 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-09 07:06:21,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 527 events. 21/527 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1319 event pairs, 1 based on Foata normal form. 0/460 useless extension candidates. Maximal degree in co-relation 316. Up to 16 conditions per place. [2024-11-09 07:06:21,507 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 157 transitions, 341 flow [2024-11-09 07:06:21,512 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 158 places, 157 transitions, 341 flow [2024-11-09 07:06:21,516 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:06:21,517 INFO L333 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, 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;@61177beb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:06:21,517 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-09 07:06:21,532 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:06:21,532 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-11-09 07:06:21,532 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:06:21,532 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:21,532 INFO L204 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] [2024-11-09 07:06:21,532 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-09 07:06:21,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:21,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1192952569, now seen corresponding path program 1 times [2024-11-09 07:06:21,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:21,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509424045] [2024-11-09 07:06:21,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:21,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:21,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:21,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:21,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:21,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509424045] [2024-11-09 07:06:21,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509424045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:21,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:21,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:06:21,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582912960] [2024-11-09 07:06:21,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:21,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:21,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:21,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:21,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:21,570 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 157 [2024-11-09 07:06:21,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 157 transitions, 341 flow. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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) [2024-11-09 07:06:21,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:21,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 157 [2024-11-09 07:06:21,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:22,159 INFO L124 PetriNetUnfolderBase]: 1071/4747 cut-off events. [2024-11-09 07:06:22,159 INFO L125 PetriNetUnfolderBase]: For 467/854 co-relation queries the response was YES. [2024-11-09 07:06:22,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6662 conditions, 4747 events. 1071/4747 cut-off events. For 467/854 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 42113 event pairs, 542 based on Foata normal form. 171/4389 useless extension candidates. Maximal degree in co-relation 5220. Up to 1110 conditions per place. [2024-11-09 07:06:22,188 INFO L140 encePairwiseOnDemand]: 148/157 looper letters, 23 selfloop transitions, 5 changer transitions 1/164 dead transitions. [2024-11-09 07:06:22,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 164 transitions, 411 flow [2024-11-09 07:06:22,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:22,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:06:22,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 440 transitions. [2024-11-09 07:06:22,191 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9341825902335457 [2024-11-09 07:06:22,191 INFO L175 Difference]: Start difference. First operand has 158 places, 157 transitions, 341 flow. Second operand 3 states and 440 transitions. [2024-11-09 07:06:22,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 164 transitions, 411 flow [2024-11-09 07:06:22,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 164 transitions, 411 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 07:06:22,195 INFO L231 Difference]: Finished difference. Result has 162 places, 157 transitions, 371 flow [2024-11-09 07:06:22,196 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=335, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=371, PETRI_PLACES=162, PETRI_TRANSITIONS=157} [2024-11-09 07:06:22,196 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 4 predicate places. [2024-11-09 07:06:22,196 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 157 transitions, 371 flow [2024-11-09 07:06:22,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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) [2024-11-09 07:06:22,197 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:22,197 INFO L204 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] [2024-11-09 07:06:22,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 07:06:22,197 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-09 07:06:22,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:22,198 INFO L85 PathProgramCache]: Analyzing trace with hash -622230047, now seen corresponding path program 1 times [2024-11-09 07:06:22,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:22,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290566072] [2024-11-09 07:06:22,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:22,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:22,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:22,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:22,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:22,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290566072] [2024-11-09 07:06:22,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290566072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:22,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:22,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:06:22,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853055561] [2024-11-09 07:06:22,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:22,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:06:22,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:22,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:06:22,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:06:22,387 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 157 [2024-11-09 07:06:22,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 157 transitions, 371 flow. Second operand has 5 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:22,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:22,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 157 [2024-11-09 07:06:22,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:23,095 INFO L124 PetriNetUnfolderBase]: 1404/6861 cut-off events. [2024-11-09 07:06:23,095 INFO L125 PetriNetUnfolderBase]: For 443/458 co-relation queries the response was YES. [2024-11-09 07:06:23,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9759 conditions, 6861 events. 1404/6861 cut-off events. For 443/458 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 66613 event pairs, 1086 based on Foata normal form. 1/6146 useless extension candidates. Maximal degree in co-relation 6125. Up to 1847 conditions per place. [2024-11-09 07:06:23,129 INFO L140 encePairwiseOnDemand]: 149/157 looper letters, 24 selfloop transitions, 2 changer transitions 5/165 dead transitions. [2024-11-09 07:06:23,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 165 transitions, 449 flow [2024-11-09 07:06:23,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:06:23,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:06:23,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 818 transitions. [2024-11-09 07:06:23,134 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8683651804670913 [2024-11-09 07:06:23,134 INFO L175 Difference]: Start difference. First operand has 162 places, 157 transitions, 371 flow. Second operand 6 states and 818 transitions. [2024-11-09 07:06:23,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 165 transitions, 449 flow [2024-11-09 07:06:23,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 165 transitions, 439 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:06:23,211 INFO L231 Difference]: Finished difference. Result has 168 places, 158 transitions, 383 flow [2024-11-09 07:06:23,211 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=383, PETRI_PLACES=168, PETRI_TRANSITIONS=158} [2024-11-09 07:06:23,212 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 10 predicate places. [2024-11-09 07:06:23,212 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 158 transitions, 383 flow [2024-11-09 07:06:23,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:23,212 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:23,212 INFO L204 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] [2024-11-09 07:06:23,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 07:06:23,212 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-09 07:06:23,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:23,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1897426620, now seen corresponding path program 1 times [2024-11-09 07:06:23,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:23,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508245486] [2024-11-09 07:06:23,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:23,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:23,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:23,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:23,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:23,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508245486] [2024-11-09 07:06:23,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508245486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:23,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:23,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:06:23,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666858585] [2024-11-09 07:06:23,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:23,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:06:23,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:23,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:06:23,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:06:23,653 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 157 [2024-11-09 07:06:23,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 158 transitions, 383 flow. Second operand has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 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) [2024-11-09 07:06:23,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:23,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 157 [2024-11-09 07:06:23,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:25,251 INFO L124 PetriNetUnfolderBase]: 3152/13178 cut-off events. [2024-11-09 07:06:25,251 INFO L125 PetriNetUnfolderBase]: For 507/508 co-relation queries the response was YES. [2024-11-09 07:06:25,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19322 conditions, 13178 events. 3152/13178 cut-off events. For 507/508 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 142874 event pairs, 2465 based on Foata normal form. 0/11518 useless extension candidates. Maximal degree in co-relation 19209. Up to 3699 conditions per place. [2024-11-09 07:06:25,332 INFO L140 encePairwiseOnDemand]: 151/157 looper letters, 61 selfloop transitions, 5 changer transitions 0/181 dead transitions. [2024-11-09 07:06:25,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 181 transitions, 561 flow [2024-11-09 07:06:25,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:06:25,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:06:25,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 738 transitions. [2024-11-09 07:06:25,335 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7834394904458599 [2024-11-09 07:06:25,335 INFO L175 Difference]: Start difference. First operand has 168 places, 158 transitions, 383 flow. Second operand 6 states and 738 transitions. [2024-11-09 07:06:25,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 181 transitions, 561 flow [2024-11-09 07:06:25,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 181 transitions, 549 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-09 07:06:25,343 INFO L231 Difference]: Finished difference. Result has 165 places, 157 transitions, 379 flow [2024-11-09 07:06:25,343 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=379, PETRI_PLACES=165, PETRI_TRANSITIONS=157} [2024-11-09 07:06:25,344 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 7 predicate places. [2024-11-09 07:06:25,344 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 157 transitions, 379 flow [2024-11-09 07:06:25,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.5) internal successors, (681), 6 states have internal predecessors, (681), 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) [2024-11-09 07:06:25,344 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:25,345 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:25,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-09 07:06:25,345 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-09 07:06:25,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:25,346 INFO L85 PathProgramCache]: Analyzing trace with hash 555839182, now seen corresponding path program 1 times [2024-11-09 07:06:25,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:25,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298391487] [2024-11-09 07:06:25,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:25,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:25,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:25,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:25,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:25,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298391487] [2024-11-09 07:06:25,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298391487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:25,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:25,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:06:25,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226177749] [2024-11-09 07:06:25,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:25,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:06:25,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:25,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:06:25,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:06:25,698 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 157 [2024-11-09 07:06:25,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 157 transitions, 379 flow. Second operand has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:25,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:25,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 157 [2024-11-09 07:06:25,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:26,882 INFO L124 PetriNetUnfolderBase]: 3111/12735 cut-off events. [2024-11-09 07:06:26,883 INFO L125 PetriNetUnfolderBase]: For 414/414 co-relation queries the response was YES. [2024-11-09 07:06:26,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18633 conditions, 12735 events. 3111/12735 cut-off events. For 414/414 co-relation queries the response was YES. Maximal size of possible extension queue 384. Compared 138436 event pairs, 1733 based on Foata normal form. 0/11154 useless extension candidates. Maximal degree in co-relation 5021. Up to 3533 conditions per place. [2024-11-09 07:06:26,948 INFO L140 encePairwiseOnDemand]: 151/157 looper letters, 58 selfloop transitions, 5 changer transitions 0/180 dead transitions. [2024-11-09 07:06:26,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 180 transitions, 551 flow [2024-11-09 07:06:26,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:06:26,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:06:26,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 748 transitions. [2024-11-09 07:06:26,951 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7940552016985138 [2024-11-09 07:06:26,951 INFO L175 Difference]: Start difference. First operand has 165 places, 157 transitions, 379 flow. Second operand 6 states and 748 transitions. [2024-11-09 07:06:26,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 180 transitions, 551 flow [2024-11-09 07:06:26,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 180 transitions, 541 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 07:06:26,955 INFO L231 Difference]: Finished difference. Result has 164 places, 156 transitions, 377 flow [2024-11-09 07:06:26,955 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=377, PETRI_PLACES=164, PETRI_TRANSITIONS=156} [2024-11-09 07:06:26,956 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 6 predicate places. [2024-11-09 07:06:26,956 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 156 transitions, 377 flow [2024-11-09 07:06:26,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:26,956 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:26,956 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:26,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 07:06:26,956 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-09 07:06:26,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:26,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1197595298, now seen corresponding path program 1 times [2024-11-09 07:06:26,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:26,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469934911] [2024-11-09 07:06:26,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:26,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:26,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:26,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:26,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:26,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469934911] [2024-11-09 07:06:26,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469934911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:26,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:26,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:06:26,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880990668] [2024-11-09 07:06:26,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:26,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:26,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:26,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:26,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:27,005 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 157 [2024-11-09 07:06:27,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 156 transitions, 377 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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) [2024-11-09 07:06:27,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:27,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 157 [2024-11-09 07:06:27,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:28,033 INFO L124 PetriNetUnfolderBase]: 1743/7668 cut-off events. [2024-11-09 07:06:28,034 INFO L125 PetriNetUnfolderBase]: For 1692/3630 co-relation queries the response was YES. [2024-11-09 07:06:28,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11998 conditions, 7668 events. 1743/7668 cut-off events. For 1692/3630 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 78839 event pairs, 967 based on Foata normal form. 9/6715 useless extension candidates. Maximal degree in co-relation 10027. Up to 2242 conditions per place. [2024-11-09 07:06:28,219 INFO L140 encePairwiseOnDemand]: 150/157 looper letters, 29 selfloop transitions, 9 changer transitions 0/171 dead transitions. [2024-11-09 07:06:28,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 171 transitions, 511 flow [2024-11-09 07:06:28,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:28,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:06:28,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 436 transitions. [2024-11-09 07:06:28,221 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9256900212314225 [2024-11-09 07:06:28,221 INFO L175 Difference]: Start difference. First operand has 164 places, 156 transitions, 377 flow. Second operand 3 states and 436 transitions. [2024-11-09 07:06:28,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 171 transitions, 511 flow [2024-11-09 07:06:28,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 171 transitions, 501 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 07:06:28,224 INFO L231 Difference]: Finished difference. Result has 163 places, 163 transitions, 443 flow [2024-11-09 07:06:28,225 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=443, PETRI_PLACES=163, PETRI_TRANSITIONS=163} [2024-11-09 07:06:28,225 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 5 predicate places. [2024-11-09 07:06:28,226 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 163 transitions, 443 flow [2024-11-09 07:06:28,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 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) [2024-11-09 07:06:28,226 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:28,226 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:28,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 07:06:28,227 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-09 07:06:28,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:28,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1851728978, now seen corresponding path program 1 times [2024-11-09 07:06:28,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:28,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190501384] [2024-11-09 07:06:28,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:28,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:28,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:28,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:06:28,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:28,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190501384] [2024-11-09 07:06:28,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190501384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:28,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:28,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:06:28,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759918937] [2024-11-09 07:06:28,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:28,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:06:28,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:28,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:06:28,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:06:28,684 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 157 [2024-11-09 07:06:28,685 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 163 transitions, 443 flow. Second operand has 6 states, 6 states have (on average 118.83333333333333) internal successors, (713), 6 states have internal predecessors, (713), 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) [2024-11-09 07:06:28,685 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:28,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 157 [2024-11-09 07:06:28,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:30,071 INFO L124 PetriNetUnfolderBase]: 3779/14522 cut-off events. [2024-11-09 07:06:30,071 INFO L125 PetriNetUnfolderBase]: For 2116/2667 co-relation queries the response was YES. [2024-11-09 07:06:30,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23789 conditions, 14522 events. 3779/14522 cut-off events. For 2116/2667 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 163644 event pairs, 1889 based on Foata normal form. 17/12972 useless extension candidates. Maximal degree in co-relation 18569. Up to 2793 conditions per place. [2024-11-09 07:06:30,132 INFO L140 encePairwiseOnDemand]: 150/157 looper letters, 55 selfloop transitions, 5 changer transitions 0/185 dead transitions. [2024-11-09 07:06:30,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 185 transitions, 607 flow [2024-11-09 07:06:30,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:06:30,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:06:30,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 758 transitions. [2024-11-09 07:06:30,134 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8046709129511678 [2024-11-09 07:06:30,134 INFO L175 Difference]: Start difference. First operand has 163 places, 163 transitions, 443 flow. Second operand 6 states and 758 transitions. [2024-11-09 07:06:30,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 185 transitions, 607 flow [2024-11-09 07:06:30,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 185 transitions, 589 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:06:30,149 INFO L231 Difference]: Finished difference. Result has 164 places, 161 transitions, 431 flow [2024-11-09 07:06:30,149 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=431, PETRI_PLACES=164, PETRI_TRANSITIONS=161} [2024-11-09 07:06:30,149 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 6 predicate places. [2024-11-09 07:06:30,149 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 161 transitions, 431 flow [2024-11-09 07:06:30,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 118.83333333333333) internal successors, (713), 6 states have internal predecessors, (713), 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) [2024-11-09 07:06:30,150 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:30,150 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:30,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-09 07:06:30,151 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-09 07:06:30,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:30,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1225381778, now seen corresponding path program 1 times [2024-11-09 07:06:30,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:30,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095809236] [2024-11-09 07:06:30,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:30,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:30,228 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:30,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:30,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095809236] [2024-11-09 07:06:30,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095809236] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:06:30,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175293942] [2024-11-09 07:06:30,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:30,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:06:30,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 07:06:30,232 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:06:30,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 07:06:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:30,361 INFO L255 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:06:30,363 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:06:30,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:30,419 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:06:30,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:30,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175293942] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:06:30,475 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:06:30,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-11-09 07:06:30,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829371709] [2024-11-09 07:06:30,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:06:30,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 07:06:30,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:30,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 07:06:30,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:06:30,717 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 157 [2024-11-09 07:06:30,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 161 transitions, 431 flow. Second operand has 9 states, 9 states have (on average 131.22222222222223) internal successors, (1181), 9 states have internal predecessors, (1181), 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) [2024-11-09 07:06:30,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:30,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 157 [2024-11-09 07:06:30,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:31,861 INFO L124 PetriNetUnfolderBase]: 1469/8109 cut-off events. [2024-11-09 07:06:31,862 INFO L125 PetriNetUnfolderBase]: For 958/1181 co-relation queries the response was YES. [2024-11-09 07:06:31,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12401 conditions, 8109 events. 1469/8109 cut-off events. For 958/1181 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 83254 event pairs, 489 based on Foata normal form. 1/7355 useless extension candidates. Maximal degree in co-relation 6723. Up to 1075 conditions per place. [2024-11-09 07:06:31,924 INFO L140 encePairwiseOnDemand]: 147/157 looper letters, 48 selfloop transitions, 10 changer transitions 0/193 dead transitions. [2024-11-09 07:06:31,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 193 transitions, 622 flow [2024-11-09 07:06:31,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 07:06:31,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 07:06:31,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1091 transitions. [2024-11-09 07:06:31,928 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8686305732484076 [2024-11-09 07:06:31,929 INFO L175 Difference]: Start difference. First operand has 164 places, 161 transitions, 431 flow. Second operand 8 states and 1091 transitions. [2024-11-09 07:06:31,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 193 transitions, 622 flow [2024-11-09 07:06:31,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 193 transitions, 610 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 07:06:31,937 INFO L231 Difference]: Finished difference. Result has 169 places, 164 transitions, 465 flow [2024-11-09 07:06:31,937 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=465, PETRI_PLACES=169, PETRI_TRANSITIONS=164} [2024-11-09 07:06:31,938 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 11 predicate places. [2024-11-09 07:06:31,938 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 164 transitions, 465 flow [2024-11-09 07:06:31,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 131.22222222222223) internal successors, (1181), 9 states have internal predecessors, (1181), 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) [2024-11-09 07:06:31,939 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:31,939 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:31,956 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 07:06:32,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:06:32,140 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-09 07:06:32,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:32,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1193116621, now seen corresponding path program 1 times [2024-11-09 07:06:32,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:32,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815564102] [2024-11-09 07:06:32,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:32,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:32,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 07:06:32,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:32,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815564102] [2024-11-09 07:06:32,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815564102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:32,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:32,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:06:32,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601761731] [2024-11-09 07:06:32,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:32,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:06:32,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:32,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:06:32,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:06:32,663 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 157 [2024-11-09 07:06:32,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 164 transitions, 465 flow. Second operand has 6 states, 6 states have (on average 126.66666666666667) internal successors, (760), 6 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:32,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:32,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 157 [2024-11-09 07:06:32,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:33,598 INFO L124 PetriNetUnfolderBase]: 2701/10551 cut-off events. [2024-11-09 07:06:33,598 INFO L125 PetriNetUnfolderBase]: For 1004/1407 co-relation queries the response was YES. [2024-11-09 07:06:33,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17213 conditions, 10551 events. 2701/10551 cut-off events. For 1004/1407 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 112259 event pairs, 1410 based on Foata normal form. 1/9499 useless extension candidates. Maximal degree in co-relation 12696. Up to 2113 conditions per place. [2024-11-09 07:06:33,658 INFO L140 encePairwiseOnDemand]: 151/157 looper letters, 48 selfloop transitions, 5 changer transitions 0/187 dead transitions. [2024-11-09 07:06:33,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 187 transitions, 617 flow [2024-11-09 07:06:33,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:06:33,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:06:33,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 798 transitions. [2024-11-09 07:06:33,660 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8471337579617835 [2024-11-09 07:06:33,660 INFO L175 Difference]: Start difference. First operand has 169 places, 164 transitions, 465 flow. Second operand 6 states and 798 transitions. [2024-11-09 07:06:33,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 187 transitions, 617 flow [2024-11-09 07:06:33,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 187 transitions, 611 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 07:06:33,666 INFO L231 Difference]: Finished difference. Result has 170 places, 163 transitions, 467 flow [2024-11-09 07:06:33,666 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=467, PETRI_PLACES=170, PETRI_TRANSITIONS=163} [2024-11-09 07:06:33,667 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 12 predicate places. [2024-11-09 07:06:33,667 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 163 transitions, 467 flow [2024-11-09 07:06:33,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 126.66666666666667) internal successors, (760), 6 states have internal predecessors, (760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:06:33,667 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:33,667 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:33,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-09 07:06:33,668 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-09 07:06:33,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:33,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1869097504, now seen corresponding path program 1 times [2024-11-09 07:06:33,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:33,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099119076] [2024-11-09 07:06:33,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:33,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:33,714 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 07:06:33,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:33,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099119076] [2024-11-09 07:06:33,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099119076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:33,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:33,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:06:33,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371676061] [2024-11-09 07:06:33,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:33,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:33,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:33,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:33,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:33,732 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 157 [2024-11-09 07:06:33,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 163 transitions, 467 flow. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 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) [2024-11-09 07:06:33,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:33,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 157 [2024-11-09 07:06:33,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:34,769 INFO L124 PetriNetUnfolderBase]: 1086/6184 cut-off events. [2024-11-09 07:06:34,770 INFO L125 PetriNetUnfolderBase]: For 2792/5364 co-relation queries the response was YES. [2024-11-09 07:06:34,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10825 conditions, 6184 events. 1086/6184 cut-off events. For 2792/5364 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 65894 event pairs, 589 based on Foata normal form. 13/5722 useless extension candidates. Maximal degree in co-relation 9709. Up to 1450 conditions per place. [2024-11-09 07:06:34,818 INFO L140 encePairwiseOnDemand]: 150/157 looper letters, 31 selfloop transitions, 13 changer transitions 0/179 dead transitions. [2024-11-09 07:06:34,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 179 transitions, 628 flow [2024-11-09 07:06:34,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:34,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:06:34,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 435 transitions. [2024-11-09 07:06:34,819 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9235668789808917 [2024-11-09 07:06:34,819 INFO L175 Difference]: Start difference. First operand has 170 places, 163 transitions, 467 flow. Second operand 3 states and 435 transitions. [2024-11-09 07:06:34,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 179 transitions, 628 flow [2024-11-09 07:06:34,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 179 transitions, 618 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-09 07:06:34,830 INFO L231 Difference]: Finished difference. Result has 169 places, 172 transitions, 575 flow [2024-11-09 07:06:34,830 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=575, PETRI_PLACES=169, PETRI_TRANSITIONS=172} [2024-11-09 07:06:34,830 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 11 predicate places. [2024-11-09 07:06:34,831 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 172 transitions, 575 flow [2024-11-09 07:06:34,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 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) [2024-11-09 07:06:34,831 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:34,831 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:34,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-09 07:06:34,832 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-09 07:06:34,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:34,832 INFO L85 PathProgramCache]: Analyzing trace with hash 902457162, now seen corresponding path program 1 times [2024-11-09 07:06:34,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:34,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665018408] [2024-11-09 07:06:34,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:34,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:34,953 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 07:06:34,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:34,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665018408] [2024-11-09 07:06:34,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665018408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:34,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:34,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:06:34,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683959082] [2024-11-09 07:06:34,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:34,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:34,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:34,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:34,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:34,965 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 157 [2024-11-09 07:06:34,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 172 transitions, 575 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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) [2024-11-09 07:06:34,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:34,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 157 [2024-11-09 07:06:34,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:35,271 INFO L124 PetriNetUnfolderBase]: 124/2155 cut-off events. [2024-11-09 07:06:35,272 INFO L125 PetriNetUnfolderBase]: For 750/873 co-relation queries the response was YES. [2024-11-09 07:06:35,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3325 conditions, 2155 events. 124/2155 cut-off events. For 750/873 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 17270 event pairs, 20 based on Foata normal form. 26/2104 useless extension candidates. Maximal degree in co-relation 1299. Up to 142 conditions per place. [2024-11-09 07:06:35,280 INFO L140 encePairwiseOnDemand]: 151/157 looper letters, 12 selfloop transitions, 6 changer transitions 0/167 dead transitions. [2024-11-09 07:06:35,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 167 transitions, 548 flow [2024-11-09 07:06:35,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:35,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:06:35,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 444 transitions. [2024-11-09 07:06:35,282 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9426751592356688 [2024-11-09 07:06:35,282 INFO L175 Difference]: Start difference. First operand has 169 places, 172 transitions, 575 flow. Second operand 3 states and 444 transitions. [2024-11-09 07:06:35,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 167 transitions, 548 flow [2024-11-09 07:06:35,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 167 transitions, 534 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-09 07:06:35,288 INFO L231 Difference]: Finished difference. Result has 169 places, 162 transitions, 479 flow [2024-11-09 07:06:35,288 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=479, PETRI_PLACES=169, PETRI_TRANSITIONS=162} [2024-11-09 07:06:35,289 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 11 predicate places. [2024-11-09 07:06:35,289 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 162 transitions, 479 flow [2024-11-09 07:06:35,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 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) [2024-11-09 07:06:35,289 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:35,290 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:35,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-09 07:06:35,290 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-09 07:06:35,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:35,291 INFO L85 PathProgramCache]: Analyzing trace with hash 971540065, now seen corresponding path program 1 times [2024-11-09 07:06:35,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:35,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85205054] [2024-11-09 07:06:35,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:35,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:35,363 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-09 07:06:35,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:35,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85205054] [2024-11-09 07:06:35,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85205054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:35,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:35,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:06:35,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877515231] [2024-11-09 07:06:35,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:35,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:35,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:35,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:35,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:35,381 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 157 [2024-11-09 07:06:35,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 162 transitions, 479 flow. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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) [2024-11-09 07:06:35,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:35,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 157 [2024-11-09 07:06:35,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:35,677 INFO L124 PetriNetUnfolderBase]: 203/2144 cut-off events. [2024-11-09 07:06:35,678 INFO L125 PetriNetUnfolderBase]: For 1440/1937 co-relation queries the response was YES. [2024-11-09 07:06:35,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3837 conditions, 2144 events. 203/2144 cut-off events. For 1440/1937 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 17858 event pairs, 134 based on Foata normal form. 3/1994 useless extension candidates. Maximal degree in co-relation 3135. Up to 435 conditions per place. [2024-11-09 07:06:35,687 INFO L140 encePairwiseOnDemand]: 152/157 looper letters, 25 selfloop transitions, 5 changer transitions 0/167 dead transitions. [2024-11-09 07:06:35,687 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 167 transitions, 561 flow [2024-11-09 07:06:35,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:35,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:06:35,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 428 transitions. [2024-11-09 07:06:35,688 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9087048832271762 [2024-11-09 07:06:35,688 INFO L175 Difference]: Start difference. First operand has 169 places, 162 transitions, 479 flow. Second operand 3 states and 428 transitions. [2024-11-09 07:06:35,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 167 transitions, 561 flow [2024-11-09 07:06:35,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 167 transitions, 555 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 07:06:35,692 INFO L231 Difference]: Finished difference. Result has 172 places, 165 transitions, 513 flow [2024-11-09 07:06:35,692 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=513, PETRI_PLACES=172, PETRI_TRANSITIONS=165} [2024-11-09 07:06:35,693 INFO L277 CegarLoopForPetriNet]: 158 programPoint places, 14 predicate places. [2024-11-09 07:06:35,693 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 165 transitions, 513 flow [2024-11-09 07:06:35,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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) [2024-11-09 07:06:35,693 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:35,693 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:35,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-09 07:06:35,694 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-09 07:06:35,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:35,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1809063735, now seen corresponding path program 1 times [2024-11-09 07:06:35,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:35,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921703058] [2024-11-09 07:06:35,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:35,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:06:35,758 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:06:35,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:06:35,813 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 07:06:35,813 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:06:35,814 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-09 07:06:35,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2024-11-09 07:06:35,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2024-11-09 07:06:35,814 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2024-11-09 07:06:35,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2024-11-09 07:06:35,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2024-11-09 07:06:35,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2024-11-09 07:06:35,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2024-11-09 07:06:35,815 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2024-11-09 07:06:35,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2024-11-09 07:06:35,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2024-11-09 07:06:35,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-09 07:06:35,816 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:35,817 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 07:06:35,817 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-09 07:06:35,845 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-09 07:06:35,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 177 places, 175 transitions, 390 flow [2024-11-09 07:06:35,972 INFO L124 PetriNetUnfolderBase]: 43/918 cut-off events. [2024-11-09 07:06:35,972 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-09 07:06:35,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 969 conditions, 918 events. 43/918 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 3073 event pairs, 6 based on Foata normal form. 0/798 useless extension candidates. Maximal degree in co-relation 547. Up to 32 conditions per place. [2024-11-09 07:06:35,974 INFO L82 GeneralOperation]: Start removeDead. Operand has 177 places, 175 transitions, 390 flow [2024-11-09 07:06:35,977 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 177 places, 175 transitions, 390 flow [2024-11-09 07:06:35,978 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:06:35,979 INFO L333 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, 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;@61177beb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:06:35,979 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-09 07:06:35,984 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 07:06:35,984 INFO L124 PetriNetUnfolderBase]: 3/50 cut-off events. [2024-11-09 07:06:35,984 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 07:06:35,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:35,984 INFO L204 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] [2024-11-09 07:06:35,985 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 07:06:35,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:35,985 INFO L85 PathProgramCache]: Analyzing trace with hash -433409817, now seen corresponding path program 1 times [2024-11-09 07:06:35,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:35,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864097134] [2024-11-09 07:06:35,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:35,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:36,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:36,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:36,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864097134] [2024-11-09 07:06:36,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864097134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:36,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:36,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:06:36,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295602915] [2024-11-09 07:06:36,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:36,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:36,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:36,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:36,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:36,027 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 175 [2024-11-09 07:06:36,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 175 transitions, 390 flow. Second operand has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 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) [2024-11-09 07:06:36,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:36,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 175 [2024-11-09 07:06:36,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:39,325 INFO L124 PetriNetUnfolderBase]: 7859/26538 cut-off events. [2024-11-09 07:06:39,325 INFO L125 PetriNetUnfolderBase]: For 2911/5636 co-relation queries the response was YES. [2024-11-09 07:06:39,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38888 conditions, 26538 events. 7859/26538 cut-off events. For 2911/5636 co-relation queries the response was YES. Maximal size of possible extension queue 762. Compared 305358 event pairs, 4292 based on Foata normal form. 798/24607 useless extension candidates. Maximal degree in co-relation 30851. Up to 7653 conditions per place. [2024-11-09 07:06:39,541 INFO L140 encePairwiseOnDemand]: 165/175 looper letters, 30 selfloop transitions, 6 changer transitions 1/185 dead transitions. [2024-11-09 07:06:39,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 185 transitions, 482 flow [2024-11-09 07:06:39,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:39,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 07:06:39,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 487 transitions. [2024-11-09 07:06:39,542 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9276190476190476 [2024-11-09 07:06:39,542 INFO L175 Difference]: Start difference. First operand has 177 places, 175 transitions, 390 flow. Second operand 3 states and 487 transitions. [2024-11-09 07:06:39,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 185 transitions, 482 flow [2024-11-09 07:06:39,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 185 transitions, 482 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 07:06:39,547 INFO L231 Difference]: Finished difference. Result has 181 places, 176 transitions, 428 flow [2024-11-09 07:06:39,547 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=428, PETRI_PLACES=181, PETRI_TRANSITIONS=176} [2024-11-09 07:06:39,547 INFO L277 CegarLoopForPetriNet]: 177 programPoint places, 4 predicate places. [2024-11-09 07:06:39,547 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 176 transitions, 428 flow [2024-11-09 07:06:39,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 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) [2024-11-09 07:06:39,548 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:39,548 INFO L204 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] [2024-11-09 07:06:39,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-09 07:06:39,548 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 07:06:39,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:39,548 INFO L85 PathProgramCache]: Analyzing trace with hash -846080095, now seen corresponding path program 1 times [2024-11-09 07:06:39,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:39,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004558547] [2024-11-09 07:06:39,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:39,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:39,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:39,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:39,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004558547] [2024-11-09 07:06:39,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004558547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:39,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:39,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:06:39,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100725199] [2024-11-09 07:06:39,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:39,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:06:39,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:39,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:06:39,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:06:39,696 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 175 [2024-11-09 07:06:39,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 176 transitions, 428 flow. Second operand has 5 states, 5 states have (on average 146.4) internal successors, (732), 5 states have internal predecessors, (732), 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) [2024-11-09 07:06:39,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:39,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 175 [2024-11-09 07:06:39,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 07:06:44,130 INFO L124 PetriNetUnfolderBase]: 9343/35816 cut-off events. [2024-11-09 07:06:44,131 INFO L125 PetriNetUnfolderBase]: For 2632/2756 co-relation queries the response was YES. [2024-11-09 07:06:44,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52733 conditions, 35816 events. 9343/35816 cut-off events. For 2632/2756 co-relation queries the response was YES. Maximal size of possible extension queue 864. Compared 443703 event pairs, 7523 based on Foata normal form. 1/31567 useless extension candidates. Maximal degree in co-relation 32440. Up to 10778 conditions per place. [2024-11-09 07:06:44,520 INFO L140 encePairwiseOnDemand]: 167/175 looper letters, 28 selfloop transitions, 2 changer transitions 5/184 dead transitions. [2024-11-09 07:06:44,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 184 transitions, 514 flow [2024-11-09 07:06:44,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:06:44,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 07:06:44,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 906 transitions. [2024-11-09 07:06:44,523 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8628571428571429 [2024-11-09 07:06:44,523 INFO L175 Difference]: Start difference. First operand has 181 places, 176 transitions, 428 flow. Second operand 6 states and 906 transitions. [2024-11-09 07:06:44,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 184 transitions, 514 flow [2024-11-09 07:06:44,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 184 transitions, 502 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 07:06:44,596 INFO L231 Difference]: Finished difference. Result has 187 places, 177 transitions, 438 flow [2024-11-09 07:06:44,597 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=438, PETRI_PLACES=187, PETRI_TRANSITIONS=177} [2024-11-09 07:06:44,597 INFO L277 CegarLoopForPetriNet]: 177 programPoint places, 10 predicate places. [2024-11-09 07:06:44,597 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 177 transitions, 438 flow [2024-11-09 07:06:44,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 146.4) internal successors, (732), 5 states have internal predecessors, (732), 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) [2024-11-09 07:06:44,598 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 07:06:44,598 INFO L204 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] [2024-11-09 07:06:44,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-09 07:06:44,600 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-09 07:06:44,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:44,600 INFO L85 PathProgramCache]: Analyzing trace with hash -746957397, now seen corresponding path program 1 times [2024-11-09 07:06:44,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 07:06:44,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474554387] [2024-11-09 07:06:44,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:44,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:44,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:44,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:06:44,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 07:06:44,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474554387] [2024-11-09 07:06:44,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474554387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:44,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:44,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:06:44,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662892833] [2024-11-09 07:06:44,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:44,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:06:44,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 07:06:44,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:06:44,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:06:44,926 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 175 [2024-11-09 07:06:44,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 177 transitions, 438 flow. Second operand has 6 states, 6 states have (on average 127.5) internal successors, (765), 6 states have internal predecessors, (765), 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) [2024-11-09 07:06:44,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 07:06:44,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 175 [2024-11-09 07:06:44,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand