./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur-pthread.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur-pthread.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 d59c014df9ead169c56b7ae39b852ef0f17fdf8c183ee9a03f7bf209d03f772f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:32:55,777 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:32:55,822 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:32:55,830 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:32:55,830 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:32:55,864 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:32:55,865 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:32:55,866 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:32:55,866 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:32:55,866 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:32:55,870 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:32:55,871 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:32:55,871 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:32:55,871 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:32:55,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:32:55,872 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:32:55,872 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:32:55,872 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:32:55,873 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:32:55,873 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:32:55,873 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:32:55,877 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:32:55,877 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:32:55,878 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:32:55,878 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:32:55,878 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:32:55,878 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:32:55,878 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:32:55,879 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:32:55,879 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:32:55,879 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:32:55,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:32:55,879 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:32:55,879 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:32:55,880 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:32:55,880 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:32:55,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:32:55,880 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:32:55,884 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:32:55,884 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:32:55,885 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:32:55,885 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d59c014df9ead169c56b7ae39b852ef0f17fdf8c183ee9a03f7bf209d03f772f [2024-10-13 09:32:56,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:32:56,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:32:56,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:32:56,167 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:32:56,168 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:32:56,169 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur-pthread.i [2024-10-13 09:32:57,657 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:32:57,933 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:32:57,934 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/37_stack_lock_p0_vs_concur-pthread.i [2024-10-13 09:32:57,956 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45142432c/1da808c65ebe4a3eb1b1ce9878fa582d/FLAG35c2cd8c5 [2024-10-13 09:32:58,233 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45142432c/1da808c65ebe4a3eb1b1ce9878fa582d [2024-10-13 09:32:58,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:32:58,237 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:32:58,242 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:32:58,242 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:32:58,247 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:32:58,247 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:32:58" (1/1) ... [2024-10-13 09:32:58,248 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bca5dfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:58, skipping insertion in model container [2024-10-13 09:32:58,248 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:32:58" (1/1) ... [2024-10-13 09:32:58,311 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:32:58,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:32:58,903 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:32:58,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:32:58,979 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:32:58,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:58 WrapperNode [2024-10-13 09:32:58,980 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:32:58,981 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:32:58,981 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:32:58,981 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:32:58,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:58" (1/1) ... [2024-10-13 09:32:58,999 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:58" (1/1) ... [2024-10-13 09:32:59,020 INFO L138 Inliner]: procedures = 165, calls = 30, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 143 [2024-10-13 09:32:59,021 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:32:59,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:32:59,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:32:59,022 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:32:59,028 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:58" (1/1) ... [2024-10-13 09:32:59,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:58" (1/1) ... [2024-10-13 09:32:59,032 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:58" (1/1) ... [2024-10-13 09:32:59,032 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:58" (1/1) ... [2024-10-13 09:32:59,039 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:58" (1/1) ... [2024-10-13 09:32:59,042 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:58" (1/1) ... [2024-10-13 09:32:59,047 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:58" (1/1) ... [2024-10-13 09:32:59,049 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:58" (1/1) ... [2024-10-13 09:32:59,051 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:32:59,052 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:32:59,052 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:32:59,052 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:32:59,053 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:58" (1/1) ... [2024-10-13 09:32:59,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:32:59,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:32:59,093 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) [2024-10-13 09:32:59,095 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 [2024-10-13 09:32:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-13 09:32:59,140 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-13 09:32:59,140 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-13 09:32:59,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-13 09:32:59,140 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 09:32:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:32:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 09:32:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 09:32:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 09:32:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 09:32:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:32:59,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:32:59,143 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:32:59,244 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:32:59,246 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:32:59,449 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:32:59,449 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:32:59,634 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:32:59,634 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 09:32:59,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:32:59 BoogieIcfgContainer [2024-10-13 09:32:59,635 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:32:59,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:32:59,636 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:32:59,639 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:32:59,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:32:58" (1/3) ... [2024-10-13 09:32:59,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c85592d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:32:59, skipping insertion in model container [2024-10-13 09:32:59,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:32:58" (2/3) ... [2024-10-13 09:32:59,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c85592d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:32:59, skipping insertion in model container [2024-10-13 09:32:59,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:32:59" (3/3) ... [2024-10-13 09:32:59,641 INFO L112 eAbstractionObserver]: Analyzing ICFG 37_stack_lock_p0_vs_concur-pthread.i [2024-10-13 09:32:59,655 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:32:59,656 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2024-10-13 09:32:59,656 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:32:59,707 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:32:59,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 139 transitions, 282 flow [2024-10-13 09:32:59,773 INFO L124 PetriNetUnfolderBase]: 8/148 cut-off events. [2024-10-13 09:32:59,773 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:32:59,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152 conditions, 148 events. 8/148 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 152 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 118. Up to 4 conditions per place. [2024-10-13 09:32:59,780 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 139 transitions, 282 flow [2024-10-13 09:32:59,783 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 135 places, 139 transitions, 282 flow [2024-10-13 09:32:59,790 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:32:59,795 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;@4b84fd71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:32:59,795 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-10-13 09:32:59,803 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:32:59,803 INFO L124 PetriNetUnfolderBase]: 3/51 cut-off events. [2024-10-13 09:32:59,803 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:32:59,804 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:32:59,804 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:32:59,805 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-10-13 09:32:59,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:32:59,809 INFO L85 PathProgramCache]: Analyzing trace with hash -602121291, now seen corresponding path program 1 times [2024-10-13 09:32:59,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:32:59,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120604824] [2024-10-13 09:32:59,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:32:59,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:32:59,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:32:59,905 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 09:32:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:32:59,961 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 09:32:59,963 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 09:32:59,965 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2024-10-13 09:32:59,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2024-10-13 09:32:59,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2024-10-13 09:32:59,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2024-10-13 09:32:59,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2024-10-13 09:32:59,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2024-10-13 09:32:59,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2024-10-13 09:32:59,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2024-10-13 09:32:59,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2024-10-13 09:32:59,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2024-10-13 09:32:59,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2024-10-13 09:32:59,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2024-10-13 09:32:59,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2024-10-13 09:32:59,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2024-10-13 09:32:59,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2024-10-13 09:32:59,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2024-10-13 09:32:59,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2024-10-13 09:32:59,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2024-10-13 09:32:59,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2024-10-13 09:32:59,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2024-10-13 09:32:59,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2024-10-13 09:32:59,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2024-10-13 09:32:59,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2024-10-13 09:32:59,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2024-10-13 09:32:59,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2024-10-13 09:32:59,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2024-10-13 09:32:59,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2024-10-13 09:32:59,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2024-10-13 09:32:59,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2024-10-13 09:32:59,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2024-10-13 09:32:59,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2024-10-13 09:32:59,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:32:59,973 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-13 09:32:59,978 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-13 09:32:59,979 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-13 09:33:00,053 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:33:00,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 239 places, 247 transitions, 504 flow [2024-10-13 09:33:00,135 INFO L124 PetriNetUnfolderBase]: 15/267 cut-off events. [2024-10-13 09:33:00,135 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-13 09:33:00,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 267 events. 15/267 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 628 event pairs, 0 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 225. Up to 6 conditions per place. [2024-10-13 09:33:00,140 INFO L82 GeneralOperation]: Start removeDead. Operand has 239 places, 247 transitions, 504 flow [2024-10-13 09:33:00,144 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 239 places, 247 transitions, 504 flow [2024-10-13 09:33:00,145 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:33:00,146 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;@4b84fd71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:33:00,146 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2024-10-13 09:33:00,153 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:33:00,153 INFO L124 PetriNetUnfolderBase]: 4/56 cut-off events. [2024-10-13 09:33:00,153 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:33:00,153 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:33:00,153 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] [2024-10-13 09:33:00,154 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-10-13 09:33:00,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:33:00,154 INFO L85 PathProgramCache]: Analyzing trace with hash -68767883, now seen corresponding path program 1 times [2024-10-13 09:33:00,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:33:00,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791462148] [2024-10-13 09:33:00,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:33:00,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:33:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:33:00,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:33:00,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:33:00,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791462148] [2024-10-13 09:33:00,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791462148] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:33:00,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:33:00,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 09:33:00,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603516056] [2024-10-13 09:33:00,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:33:00,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 09:33:00,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:33:00,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 09:33:00,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 09:33:00,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 247 [2024-10-13 09:33:00,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 247 transitions, 504 flow. Second operand has 2 states, 2 states have (on average 210.0) internal successors, (420), 2 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:33:00,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:33:00,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 247 [2024-10-13 09:33:00,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:33:00,482 INFO L124 PetriNetUnfolderBase]: 44/752 cut-off events. [2024-10-13 09:33:00,482 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-10-13 09:33:00,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 848 conditions, 752 events. 44/752 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4109 event pairs, 30 based on Foata normal form. 94/755 useless extension candidates. Maximal degree in co-relation 163. Up to 73 conditions per place. [2024-10-13 09:33:00,491 INFO L140 encePairwiseOnDemand]: 223/247 looper letters, 12 selfloop transitions, 0 changer transitions 0/212 dead transitions. [2024-10-13 09:33:00,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 212 transitions, 458 flow [2024-10-13 09:33:00,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 09:33:00,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-13 09:33:00,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 454 transitions. [2024-10-13 09:33:00,507 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9190283400809717 [2024-10-13 09:33:00,509 INFO L175 Difference]: Start difference. First operand has 239 places, 247 transitions, 504 flow. Second operand 2 states and 454 transitions. [2024-10-13 09:33:00,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 212 transitions, 458 flow [2024-10-13 09:33:00,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 212 transitions, 458 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:33:00,516 INFO L231 Difference]: Finished difference. Result has 214 places, 212 transitions, 434 flow [2024-10-13 09:33:00,517 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=434, PETRI_PLACES=214, PETRI_TRANSITIONS=212} [2024-10-13 09:33:00,522 INFO L277 CegarLoopForPetriNet]: 239 programPoint places, -25 predicate places. [2024-10-13 09:33:00,522 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 212 transitions, 434 flow [2024-10-13 09:33:00,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 210.0) internal successors, (420), 2 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:33:00,522 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:33:00,523 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:33:00,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 09:33:00,523 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-10-13 09:33:00,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:33:00,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1776078548, now seen corresponding path program 1 times [2024-10-13 09:33:00,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:33:00,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420985455] [2024-10-13 09:33:00,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:33:00,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:33:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:33:00,553 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 09:33:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:33:00,571 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 09:33:00,571 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 09:33:00,572 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 46 remaining) [2024-10-13 09:33:00,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2024-10-13 09:33:00,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2024-10-13 09:33:00,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2024-10-13 09:33:00,572 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2024-10-13 09:33:00,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2024-10-13 09:33:00,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2024-10-13 09:33:00,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2024-10-13 09:33:00,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2024-10-13 09:33:00,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2024-10-13 09:33:00,573 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2024-10-13 09:33:00,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2024-10-13 09:33:00,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2024-10-13 09:33:00,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2024-10-13 09:33:00,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2024-10-13 09:33:00,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2024-10-13 09:33:00,574 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2024-10-13 09:33:00,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2024-10-13 09:33:00,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2024-10-13 09:33:00,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2024-10-13 09:33:00,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2024-10-13 09:33:00,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2024-10-13 09:33:00,575 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2024-10-13 09:33:00,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2024-10-13 09:33:00,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2024-10-13 09:33:00,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2024-10-13 09:33:00,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2024-10-13 09:33:00,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2024-10-13 09:33:00,576 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2024-10-13 09:33:00,577 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2024-10-13 09:33:00,577 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2024-10-13 09:33:00,577 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2024-10-13 09:33:00,577 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2024-10-13 09:33:00,577 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2024-10-13 09:33:00,578 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2024-10-13 09:33:00,578 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2024-10-13 09:33:00,578 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2024-10-13 09:33:00,579 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2024-10-13 09:33:00,579 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2024-10-13 09:33:00,580 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2024-10-13 09:33:00,580 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2024-10-13 09:33:00,580 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2024-10-13 09:33:00,580 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2024-10-13 09:33:00,581 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2024-10-13 09:33:00,581 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2024-10-13 09:33:00,581 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2024-10-13 09:33:00,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 09:33:00,581 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-13 09:33:00,582 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-13 09:33:00,582 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-13 09:33:00,660 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:33:00,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 343 places, 355 transitions, 728 flow [2024-10-13 09:33:00,740 INFO L124 PetriNetUnfolderBase]: 22/386 cut-off events. [2024-10-13 09:33:00,741 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-13 09:33:00,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 399 conditions, 386 events. 22/386 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1285 event pairs, 0 based on Foata normal form. 0/315 useless extension candidates. Maximal degree in co-relation 332. Up to 8 conditions per place. [2024-10-13 09:33:00,746 INFO L82 GeneralOperation]: Start removeDead. Operand has 343 places, 355 transitions, 728 flow [2024-10-13 09:33:00,750 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 343 places, 355 transitions, 728 flow [2024-10-13 09:33:00,753 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:33:00,753 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;@4b84fd71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:33:00,753 INFO L334 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2024-10-13 09:33:00,757 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:33:00,757 INFO L124 PetriNetUnfolderBase]: 5/60 cut-off events. [2024-10-13 09:33:00,757 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:33:00,757 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:33:00,758 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] [2024-10-13 09:33:00,758 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-10-13 09:33:00,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:33:00,759 INFO L85 PathProgramCache]: Analyzing trace with hash -370789683, now seen corresponding path program 1 times [2024-10-13 09:33:00,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:33:00,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045849790] [2024-10-13 09:33:00,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:33:00,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:33:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:33:00,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:33:00,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:33:00,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045849790] [2024-10-13 09:33:00,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045849790] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:33:00,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:33:00,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 09:33:00,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371551858] [2024-10-13 09:33:00,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:33:00,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 09:33:00,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:33:00,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 09:33:00,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 09:33:00,818 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 355 [2024-10-13 09:33:00,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 355 transitions, 728 flow. Second operand has 2 states, 2 states have (on average 300.0) internal successors, (600), 2 states have internal predecessors, (600), 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) [2024-10-13 09:33:00,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:33:00,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 355 [2024-10-13 09:33:00,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:33:01,556 INFO L124 PetriNetUnfolderBase]: 476/4706 cut-off events. [2024-10-13 09:33:01,556 INFO L125 PetriNetUnfolderBase]: For 343/343 co-relation queries the response was YES. [2024-10-13 09:33:01,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5523 conditions, 4706 events. 476/4706 cut-off events. For 343/343 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 47286 event pairs, 390 based on Foata normal form. 736/4872 useless extension candidates. Maximal degree in co-relation 838. Up to 649 conditions per place. [2024-10-13 09:33:01,618 INFO L140 encePairwiseOnDemand]: 320/355 looper letters, 18 selfloop transitions, 0 changer transitions 0/305 dead transitions. [2024-10-13 09:33:01,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 305 transitions, 664 flow [2024-10-13 09:33:01,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 09:33:01,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-13 09:33:01,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 651 transitions. [2024-10-13 09:33:01,627 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9169014084507042 [2024-10-13 09:33:01,627 INFO L175 Difference]: Start difference. First operand has 343 places, 355 transitions, 728 flow. Second operand 2 states and 651 transitions. [2024-10-13 09:33:01,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 305 transitions, 664 flow [2024-10-13 09:33:01,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 305 transitions, 662 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-10-13 09:33:01,643 INFO L231 Difference]: Finished difference. Result has 307 places, 305 transitions, 626 flow [2024-10-13 09:33:01,643 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=626, PETRI_PLACES=307, PETRI_TRANSITIONS=305} [2024-10-13 09:33:01,644 INFO L277 CegarLoopForPetriNet]: 343 programPoint places, -36 predicate places. [2024-10-13 09:33:01,645 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 305 transitions, 626 flow [2024-10-13 09:33:01,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 300.0) internal successors, (600), 2 states have internal predecessors, (600), 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) [2024-10-13 09:33:01,646 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:33:01,646 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] [2024-10-13 09:33:01,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 09:33:01,647 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-10-13 09:33:01,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:33:01,648 INFO L85 PathProgramCache]: Analyzing trace with hash -848261290, now seen corresponding path program 1 times [2024-10-13 09:33:01,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:33:01,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468076422] [2024-10-13 09:33:01,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:33:01,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:33:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:33:02,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:33:02,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:33:02,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468076422] [2024-10-13 09:33:02,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468076422] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:33:02,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:33:02,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:33:02,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462943824] [2024-10-13 09:33:02,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:33:02,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:33:02,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:33:02,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:33:02,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:33:03,142 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 355 [2024-10-13 09:33:03,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 305 transitions, 626 flow. Second operand has 6 states, 6 states have (on average 272.5) internal successors, (1635), 6 states have internal predecessors, (1635), 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) [2024-10-13 09:33:03,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:33:03,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 355 [2024-10-13 09:33:03,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:33:07,526 INFO L124 PetriNetUnfolderBase]: 6096/28391 cut-off events. [2024-10-13 09:33:07,526 INFO L125 PetriNetUnfolderBase]: For 1231/1231 co-relation queries the response was YES. [2024-10-13 09:33:07,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38112 conditions, 28391 events. 6096/28391 cut-off events. For 1231/1231 co-relation queries the response was YES. Maximal size of possible extension queue 783. Compared 385654 event pairs, 1063 based on Foata normal form. 0/25202 useless extension candidates. Maximal degree in co-relation 38106. Up to 4759 conditions per place. [2024-10-13 09:33:07,894 INFO L140 encePairwiseOnDemand]: 328/355 looper letters, 96 selfloop transitions, 29 changer transitions 0/384 dead transitions. [2024-10-13 09:33:07,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 384 transitions, 1074 flow [2024-10-13 09:33:07,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:33:07,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:33:07,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1755 transitions. [2024-10-13 09:33:07,898 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.823943661971831 [2024-10-13 09:33:07,898 INFO L175 Difference]: Start difference. First operand has 307 places, 305 transitions, 626 flow. Second operand 6 states and 1755 transitions. [2024-10-13 09:33:07,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 384 transitions, 1074 flow [2024-10-13 09:33:07,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 384 transitions, 1074 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:33:07,908 INFO L231 Difference]: Finished difference. Result has 317 places, 333 transitions, 850 flow [2024-10-13 09:33:07,909 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=355, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=850, PETRI_PLACES=317, PETRI_TRANSITIONS=333} [2024-10-13 09:33:07,909 INFO L277 CegarLoopForPetriNet]: 343 programPoint places, -26 predicate places. [2024-10-13 09:33:07,910 INFO L471 AbstractCegarLoop]: Abstraction has has 317 places, 333 transitions, 850 flow [2024-10-13 09:33:07,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 272.5) internal successors, (1635), 6 states have internal predecessors, (1635), 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) [2024-10-13 09:33:07,911 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:33:07,911 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:33:07,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 09:33:07,911 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-10-13 09:33:07,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:33:07,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1072946066, now seen corresponding path program 1 times [2024-10-13 09:33:07,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:33:07,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981075022] [2024-10-13 09:33:07,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:33:07,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:33:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:33:07,922 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 09:33:07,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:33:07,933 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 09:33:07,934 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 09:33:07,934 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (60 of 61 remaining) [2024-10-13 09:33:07,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (59 of 61 remaining) [2024-10-13 09:33:07,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (58 of 61 remaining) [2024-10-13 09:33:07,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (57 of 61 remaining) [2024-10-13 09:33:07,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (56 of 61 remaining) [2024-10-13 09:33:07,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (55 of 61 remaining) [2024-10-13 09:33:07,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (54 of 61 remaining) [2024-10-13 09:33:07,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (53 of 61 remaining) [2024-10-13 09:33:07,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (52 of 61 remaining) [2024-10-13 09:33:07,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (51 of 61 remaining) [2024-10-13 09:33:07,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (50 of 61 remaining) [2024-10-13 09:33:07,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (49 of 61 remaining) [2024-10-13 09:33:07,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (48 of 61 remaining) [2024-10-13 09:33:07,935 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (47 of 61 remaining) [2024-10-13 09:33:07,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (46 of 61 remaining) [2024-10-13 09:33:07,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (45 of 61 remaining) [2024-10-13 09:33:07,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (44 of 61 remaining) [2024-10-13 09:33:07,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (43 of 61 remaining) [2024-10-13 09:33:07,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (42 of 61 remaining) [2024-10-13 09:33:07,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (41 of 61 remaining) [2024-10-13 09:33:07,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 61 remaining) [2024-10-13 09:33:07,936 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (39 of 61 remaining) [2024-10-13 09:33:07,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (38 of 61 remaining) [2024-10-13 09:33:07,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 61 remaining) [2024-10-13 09:33:07,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (36 of 61 remaining) [2024-10-13 09:33:07,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (35 of 61 remaining) [2024-10-13 09:33:07,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (34 of 61 remaining) [2024-10-13 09:33:07,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (33 of 61 remaining) [2024-10-13 09:33:07,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (32 of 61 remaining) [2024-10-13 09:33:07,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (31 of 61 remaining) [2024-10-13 09:33:07,937 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (30 of 61 remaining) [2024-10-13 09:33:07,938 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (29 of 61 remaining) [2024-10-13 09:33:07,938 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (28 of 61 remaining) [2024-10-13 09:33:07,938 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 61 remaining) [2024-10-13 09:33:07,938 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 61 remaining) [2024-10-13 09:33:07,938 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 61 remaining) [2024-10-13 09:33:07,938 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (24 of 61 remaining) [2024-10-13 09:33:07,938 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (23 of 61 remaining) [2024-10-13 09:33:07,938 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 61 remaining) [2024-10-13 09:33:07,938 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (21 of 61 remaining) [2024-10-13 09:33:07,938 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (20 of 61 remaining) [2024-10-13 09:33:07,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (19 of 61 remaining) [2024-10-13 09:33:07,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (18 of 61 remaining) [2024-10-13 09:33:07,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (17 of 61 remaining) [2024-10-13 09:33:07,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (16 of 61 remaining) [2024-10-13 09:33:07,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (15 of 61 remaining) [2024-10-13 09:33:07,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 61 remaining) [2024-10-13 09:33:07,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 61 remaining) [2024-10-13 09:33:07,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 61 remaining) [2024-10-13 09:33:07,939 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (11 of 61 remaining) [2024-10-13 09:33:07,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 61 remaining) [2024-10-13 09:33:07,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 61 remaining) [2024-10-13 09:33:07,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 61 remaining) [2024-10-13 09:33:07,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 61 remaining) [2024-10-13 09:33:07,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (6 of 61 remaining) [2024-10-13 09:33:07,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (5 of 61 remaining) [2024-10-13 09:33:07,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (4 of 61 remaining) [2024-10-13 09:33:07,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (3 of 61 remaining) [2024-10-13 09:33:07,940 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (2 of 61 remaining) [2024-10-13 09:33:07,941 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (1 of 61 remaining) [2024-10-13 09:33:07,941 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (0 of 61 remaining) [2024-10-13 09:33:07,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 09:33:07,941 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-13 09:33:07,942 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-13 09:33:07,942 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-10-13 09:33:08,025 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:33:08,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 447 places, 463 transitions, 954 flow [2024-10-13 09:33:08,377 INFO L124 PetriNetUnfolderBase]: 29/505 cut-off events. [2024-10-13 09:33:08,378 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-13 09:33:08,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 524 conditions, 505 events. 29/505 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1982 event pairs, 0 based on Foata normal form. 0/411 useless extension candidates. Maximal degree in co-relation 439. Up to 10 conditions per place. [2024-10-13 09:33:08,390 INFO L82 GeneralOperation]: Start removeDead. Operand has 447 places, 463 transitions, 954 flow [2024-10-13 09:33:08,398 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 447 places, 463 transitions, 954 flow [2024-10-13 09:33:08,399 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:33:08,400 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;@4b84fd71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:33:08,400 INFO L334 AbstractCegarLoop]: Starting to check reachability of 76 error locations. [2024-10-13 09:33:08,408 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:33:08,408 INFO L124 PetriNetUnfolderBase]: 4/56 cut-off events. [2024-10-13 09:33:08,408 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:33:08,409 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:33:08,409 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] [2024-10-13 09:33:08,409 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2024-10-13 09:33:08,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:33:08,410 INFO L85 PathProgramCache]: Analyzing trace with hash 600074620, now seen corresponding path program 1 times [2024-10-13 09:33:08,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:33:08,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541039859] [2024-10-13 09:33:08,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:33:08,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:33:08,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:33:08,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:33:08,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:33:08,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541039859] [2024-10-13 09:33:08,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541039859] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:33:08,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:33:08,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 09:33:08,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235348785] [2024-10-13 09:33:08,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:33:08,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 09:33:08,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:33:08,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 09:33:08,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 09:33:08,449 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 463 [2024-10-13 09:33:08,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 463 transitions, 954 flow. Second operand has 2 states, 2 states have (on average 390.0) internal successors, (780), 2 states have internal predecessors, (780), 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) [2024-10-13 09:33:08,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:33:08,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 463 [2024-10-13 09:33:08,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:33:14,534 INFO L124 PetriNetUnfolderBase]: 4148/29510 cut-off events. [2024-10-13 09:33:14,534 INFO L125 PetriNetUnfolderBase]: For 3691/3691 co-relation queries the response was YES. [2024-10-13 09:33:14,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35944 conditions, 29510 events. 4148/29510 cut-off events. For 3691/3691 co-relation queries the response was YES. Maximal size of possible extension queue 603. Compared 413263 event pairs, 3630 based on Foata normal form. 5452/31517 useless extension candidates. Maximal degree in co-relation 5544. Up to 5185 conditions per place. [2024-10-13 09:33:14,894 INFO L140 encePairwiseOnDemand]: 417/463 looper letters, 24 selfloop transitions, 0 changer transitions 0/398 dead transitions. [2024-10-13 09:33:14,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 398 transitions, 872 flow [2024-10-13 09:33:14,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 09:33:14,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-13 09:33:14,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 848 transitions. [2024-10-13 09:33:14,897 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9157667386609071 [2024-10-13 09:33:14,897 INFO L175 Difference]: Start difference. First operand has 447 places, 463 transitions, 954 flow. Second operand 2 states and 848 transitions. [2024-10-13 09:33:14,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 398 transitions, 872 flow [2024-10-13 09:33:14,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 398 transitions, 866 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-10-13 09:33:14,907 INFO L231 Difference]: Finished difference. Result has 400 places, 398 transitions, 818 flow [2024-10-13 09:33:14,908 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=818, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=818, PETRI_PLACES=400, PETRI_TRANSITIONS=398} [2024-10-13 09:33:14,908 INFO L277 CegarLoopForPetriNet]: 447 programPoint places, -47 predicate places. [2024-10-13 09:33:14,909 INFO L471 AbstractCegarLoop]: Abstraction has has 400 places, 398 transitions, 818 flow [2024-10-13 09:33:14,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 390.0) internal successors, (780), 2 states have internal predecessors, (780), 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) [2024-10-13 09:33:14,910 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:33:14,910 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] [2024-10-13 09:33:14,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 09:33:14,911 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2024-10-13 09:33:14,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:33:14,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1338453125, now seen corresponding path program 1 times [2024-10-13 09:33:14,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:33:14,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146459779] [2024-10-13 09:33:14,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:33:14,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:33:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:33:15,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:33:15,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:33:15,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146459779] [2024-10-13 09:33:15,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146459779] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:33:15,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:33:15,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:33:15,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552746198] [2024-10-13 09:33:15,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:33:15,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:33:15,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:33:15,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:33:15,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:33:15,714 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 361 out of 463 [2024-10-13 09:33:15,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 398 transitions, 818 flow. Second operand has 6 states, 6 states have (on average 362.5) internal successors, (2175), 6 states have internal predecessors, (2175), 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) [2024-10-13 09:33:15,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:33:15,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 361 of 463 [2024-10-13 09:33:15,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:33:56,391 INFO L124 PetriNetUnfolderBase]: 55861/190042 cut-off events. [2024-10-13 09:33:56,391 INFO L125 PetriNetUnfolderBase]: For 9055/9055 co-relation queries the response was YES. [2024-10-13 09:33:59,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269419 conditions, 190042 events. 55861/190042 cut-off events. For 9055/9055 co-relation queries the response was YES. Maximal size of possible extension queue 4836. Compared 3022898 event pairs, 11417 based on Foata normal form. 0/170992 useless extension candidates. Maximal degree in co-relation 269412. Up to 41721 conditions per place. [2024-10-13 09:34:01,356 INFO L140 encePairwiseOnDemand]: 435/463 looper letters, 122 selfloop transitions, 33 changer transitions 0/501 dead transitions. [2024-10-13 09:34:01,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 501 transitions, 1394 flow [2024-10-13 09:34:01,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:34:01,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:34:01,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2325 transitions. [2024-10-13 09:34:01,364 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8369330453563715 [2024-10-13 09:34:01,364 INFO L175 Difference]: Start difference. First operand has 400 places, 398 transitions, 818 flow. Second operand 6 states and 2325 transitions. [2024-10-13 09:34:01,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 501 transitions, 1394 flow [2024-10-13 09:34:01,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 501 transitions, 1394 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:34:01,381 INFO L231 Difference]: Finished difference. Result has 410 places, 430 transitions, 1068 flow [2024-10-13 09:34:01,384 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=463, PETRI_DIFFERENCE_MINUEND_FLOW=818, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1068, PETRI_PLACES=410, PETRI_TRANSITIONS=430} [2024-10-13 09:34:01,385 INFO L277 CegarLoopForPetriNet]: 447 programPoint places, -37 predicate places. [2024-10-13 09:34:01,386 INFO L471 AbstractCegarLoop]: Abstraction has has 410 places, 430 transitions, 1068 flow [2024-10-13 09:34:01,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 362.5) internal successors, (2175), 6 states have internal predecessors, (2175), 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) [2024-10-13 09:34:01,390 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:34:01,390 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:34:01,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 09:34:01,391 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2024-10-13 09:34:01,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:34:01,391 INFO L85 PathProgramCache]: Analyzing trace with hash 767609076, now seen corresponding path program 1 times [2024-10-13 09:34:01,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:34:01,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2368746] [2024-10-13 09:34:01,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:34:01,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:34:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:34:01,768 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-13 09:34:01,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:34:01,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2368746] [2024-10-13 09:34:01,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2368746] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:34:01,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:34:01,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:34:01,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268336301] [2024-10-13 09:34:01,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:34:01,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:34:01,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:34:01,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:34:01,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:34:02,349 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 361 out of 463 [2024-10-13 09:34:02,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 430 transitions, 1068 flow. Second operand has 6 states, 6 states have (on average 362.6666666666667) internal successors, (2176), 6 states have internal predecessors, (2176), 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) [2024-10-13 09:34:02,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:34:02,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 361 of 463 [2024-10-13 09:34:02,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand