./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.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 af00d5f4cc6a18cb9fd8a5151467217fe3ddb5ee0fa30b2cfbd9dd374105ee15 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:53:52,451 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:53:52,533 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:53:52,541 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:53:52,541 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:53:52,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:53:52,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:53:52,572 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:53:52,573 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:53:52,573 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:53:52,574 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:53:52,574 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:53:52,575 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:53:52,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:53:52,575 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:53:52,576 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:53:52,576 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:53:52,577 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:53:52,577 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:53:52,577 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:53:52,578 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:53:52,578 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:53:52,579 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:53:52,579 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:53:52,581 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:53:52,581 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:53:52,582 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:53:52,582 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:53:52,582 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:53:52,582 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:53:52,583 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:53:52,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:53:52,583 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:53:52,584 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:53:52,584 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:53:52,587 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:53:52,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:53:52,588 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:53:52,588 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:53:52,589 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:53:52,589 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:53:52,590 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af00d5f4cc6a18cb9fd8a5151467217fe3ddb5ee0fa30b2cfbd9dd374105ee15 [2024-11-19 05:53:52,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:53:52,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:53:52,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:53:52,890 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:53:52,890 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:53:52,892 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i [2024-11-19 05:53:54,385 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:53:54,693 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:53:54,694 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_41-trylock_racefree.i [2024-11-19 05:53:54,712 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74ed0ecf7/f530e009a3664a4587542ee445d68290/FLAG67cc7a57b [2024-11-19 05:53:54,976 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74ed0ecf7/f530e009a3664a4587542ee445d68290 [2024-11-19 05:53:54,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:53:54,980 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:53:54,981 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:53:54,982 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:53:54,987 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:53:54,988 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:53:54" (1/1) ... [2024-11-19 05:53:54,989 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1806be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:54, skipping insertion in model container [2024-11-19 05:53:54,989 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:53:54" (1/1) ... [2024-11-19 05:53:55,037 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:53:55,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:53:55,442 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:53:55,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:53:55,578 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:53:55,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:55 WrapperNode [2024-11-19 05:53:55,579 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:53:55,580 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:53:55,581 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:53:55,581 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:53:55,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:55" (1/1) ... [2024-11-19 05:53:55,637 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:55" (1/1) ... [2024-11-19 05:53:55,666 INFO L138 Inliner]: procedures = 172, calls = 36, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2024-11-19 05:53:55,667 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:53:55,667 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:53:55,668 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:53:55,668 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:53:55,676 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:55" (1/1) ... [2024-11-19 05:53:55,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:55" (1/1) ... [2024-11-19 05:53:55,679 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:55" (1/1) ... [2024-11-19 05:53:55,680 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:55" (1/1) ... [2024-11-19 05:53:55,690 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:55" (1/1) ... [2024-11-19 05:53:55,695 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:55" (1/1) ... [2024-11-19 05:53:55,697 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:55" (1/1) ... [2024-11-19 05:53:55,698 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:55" (1/1) ... [2024-11-19 05:53:55,701 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:53:55,702 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:53:55,702 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:53:55,702 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:53:55,703 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:55" (1/1) ... [2024-11-19 05:53:55,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:53:55,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:53:55,741 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 05:53:55,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 05:53:55,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 05:53:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 05:53:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 05:53:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:53:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 05:53:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 05:53:55,801 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 05:53:55,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 05:53:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2024-11-19 05:53:55,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 05:53:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 05:53:55,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:53:55,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:53:55,804 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:53:55,966 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:53:55,968 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:53:56,244 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:53:56,245 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:53:56,284 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:53:56,285 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-19 05:53:56,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:53:56 BoogieIcfgContainer [2024-11-19 05:53:56,285 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:53:56,287 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:53:56,287 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:53:56,291 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:53:56,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:53:54" (1/3) ... [2024-11-19 05:53:56,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d71ab0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:53:56, skipping insertion in model container [2024-11-19 05:53:56,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:55" (2/3) ... [2024-11-19 05:53:56,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d71ab0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:53:56, skipping insertion in model container [2024-11-19 05:53:56,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:53:56" (3/3) ... [2024-11-19 05:53:56,294 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_41-trylock_racefree.i [2024-11-19 05:53:56,311 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:53:56,311 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-19 05:53:56,311 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:53:56,372 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-19 05:53:56,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 144 transitions, 295 flow [2024-11-19 05:53:56,484 INFO L124 PetriNetUnfolderBase]: 23/207 cut-off events. [2024-11-19 05:53:56,484 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:53:56,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 212 conditions, 207 events. 23/207 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 659 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 113. Up to 6 conditions per place. [2024-11-19 05:53:56,494 INFO L82 GeneralOperation]: Start removeDead. Operand has 132 places, 144 transitions, 295 flow [2024-11-19 05:53:56,502 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 144 transitions, 295 flow [2024-11-19 05:53:56,511 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:53:56,516 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;@7484062a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:53:56,517 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-19 05:53:56,527 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:53:56,527 INFO L124 PetriNetUnfolderBase]: 4/49 cut-off events. [2024-11-19 05:53:56,527 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:53:56,527 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:56,528 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] [2024-11-19 05:53:56,529 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-19 05:53:56,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:56,534 INFO L85 PathProgramCache]: Analyzing trace with hash -339722752, now seen corresponding path program 1 times [2024-11-19 05:53:56,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:56,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202092922] [2024-11-19 05:53:56,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:56,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:56,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:56,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:56,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202092922] [2024-11-19 05:53:56,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202092922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:56,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:56,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:53:56,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691666746] [2024-11-19 05:53:56,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:56,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 05:53:56,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:56,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 05:53:56,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 05:53:56,840 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 144 [2024-11-19 05:53:56,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 144 transitions, 295 flow. Second operand has 2 states, 2 states have (on average 119.0) internal successors, (238), 2 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:56,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:56,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 144 [2024-11-19 05:53:56,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:56,971 INFO L124 PetriNetUnfolderBase]: 27/367 cut-off events. [2024-11-19 05:53:56,972 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 05:53:56,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 437 conditions, 367 events. 27/367 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1446 event pairs, 24 based on Foata normal form. 54/383 useless extension candidates. Maximal degree in co-relation 340. Up to 65 conditions per place. [2024-11-19 05:53:56,977 INFO L140 encePairwiseOnDemand]: 131/144 looper letters, 12 selfloop transitions, 0 changer transitions 0/129 dead transitions. [2024-11-19 05:53:56,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 129 transitions, 289 flow [2024-11-19 05:53:56,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 05:53:56,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-19 05:53:56,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 261 transitions. [2024-11-19 05:53:56,994 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.90625 [2024-11-19 05:53:56,997 INFO L175 Difference]: Start difference. First operand has 132 places, 144 transitions, 295 flow. Second operand 2 states and 261 transitions. [2024-11-19 05:53:56,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 129 transitions, 289 flow [2024-11-19 05:53:57,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 129 transitions, 289 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:53:57,009 INFO L231 Difference]: Finished difference. Result has 131 places, 129 transitions, 265 flow [2024-11-19 05:53:57,012 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=265, PETRI_PLACES=131, PETRI_TRANSITIONS=129} [2024-11-19 05:53:57,019 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, -1 predicate places. [2024-11-19 05:53:57,020 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 129 transitions, 265 flow [2024-11-19 05:53:57,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 119.0) internal successors, (238), 2 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:57,020 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:57,020 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:53:57,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:53:57,021 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-19 05:53:57,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:57,022 INFO L85 PathProgramCache]: Analyzing trace with hash -104795701, now seen corresponding path program 1 times [2024-11-19 05:53:57,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:57,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81778671] [2024-11-19 05:53:57,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:57,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:57,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:57,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:57,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81778671] [2024-11-19 05:53:57,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81778671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:57,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:57,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:53:57,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553138122] [2024-11-19 05:53:57,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:57,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:53:57,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:57,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:53:57,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:53:57,264 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 144 [2024-11-19 05:53:57,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 129 transitions, 265 flow. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:57,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:57,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 144 [2024-11-19 05:53:57,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:57,415 INFO L124 PetriNetUnfolderBase]: 55/546 cut-off events. [2024-11-19 05:53:57,415 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 05:53:57,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 668 conditions, 546 events. 55/546 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2704 event pairs, 0 based on Foata normal form. 1/490 useless extension candidates. Maximal degree in co-relation 664. Up to 108 conditions per place. [2024-11-19 05:53:57,420 INFO L140 encePairwiseOnDemand]: 141/144 looper letters, 22 selfloop transitions, 2 changer transitions 0/135 dead transitions. [2024-11-19 05:53:57,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 135 transitions, 325 flow [2024-11-19 05:53:57,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:53:57,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:53:57,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 361 transitions. [2024-11-19 05:53:57,424 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8356481481481481 [2024-11-19 05:53:57,424 INFO L175 Difference]: Start difference. First operand has 131 places, 129 transitions, 265 flow. Second operand 3 states and 361 transitions. [2024-11-19 05:53:57,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 135 transitions, 325 flow [2024-11-19 05:53:57,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 135 transitions, 325 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:53:57,433 INFO L231 Difference]: Finished difference. Result has 134 places, 129 transitions, 273 flow [2024-11-19 05:53:57,434 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=273, PETRI_PLACES=134, PETRI_TRANSITIONS=129} [2024-11-19 05:53:57,435 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 2 predicate places. [2024-11-19 05:53:57,435 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 129 transitions, 273 flow [2024-11-19 05:53:57,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:57,436 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:57,436 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] [2024-11-19 05:53:57,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 05:53:57,437 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-19 05:53:57,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:57,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1760864711, now seen corresponding path program 1 times [2024-11-19 05:53:57,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:57,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351106497] [2024-11-19 05:53:57,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:57,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:58,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:58,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:58,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351106497] [2024-11-19 05:53:58,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351106497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:58,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:58,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:53:58,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317675242] [2024-11-19 05:53:58,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:58,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:53:58,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:58,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:53:58,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:53:58,218 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 144 [2024-11-19 05:53:58,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 129 transitions, 273 flow. Second operand has 6 states, 6 states have (on average 101.5) internal successors, (609), 6 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:58,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:58,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 144 [2024-11-19 05:53:58,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:58,464 INFO L124 PetriNetUnfolderBase]: 115/660 cut-off events. [2024-11-19 05:53:58,464 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-19 05:53:58,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 948 conditions, 660 events. 115/660 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 3757 event pairs, 12 based on Foata normal form. 0/603 useless extension candidates. Maximal degree in co-relation 942. Up to 181 conditions per place. [2024-11-19 05:53:58,472 INFO L140 encePairwiseOnDemand]: 138/144 looper letters, 48 selfloop transitions, 5 changer transitions 0/152 dead transitions. [2024-11-19 05:53:58,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 152 transitions, 425 flow [2024-11-19 05:53:58,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:53:58,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:53:58,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 654 transitions. [2024-11-19 05:53:58,481 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7569444444444444 [2024-11-19 05:53:58,481 INFO L175 Difference]: Start difference. First operand has 134 places, 129 transitions, 273 flow. Second operand 6 states and 654 transitions. [2024-11-19 05:53:58,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 152 transitions, 425 flow [2024-11-19 05:53:58,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 152 transitions, 421 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:53:58,488 INFO L231 Difference]: Finished difference. Result has 136 places, 128 transitions, 277 flow [2024-11-19 05:53:58,488 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=277, PETRI_PLACES=136, PETRI_TRANSITIONS=128} [2024-11-19 05:53:58,490 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 4 predicate places. [2024-11-19 05:53:58,490 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 128 transitions, 277 flow [2024-11-19 05:53:58,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 101.5) internal successors, (609), 6 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:58,491 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:58,491 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:53:58,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 05:53:58,493 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-19 05:53:58,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:58,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1856796326, now seen corresponding path program 1 times [2024-11-19 05:53:58,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:58,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862530740] [2024-11-19 05:53:58,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:58,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:58,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:58,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:58,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862530740] [2024-11-19 05:53:58,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862530740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:58,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:58,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:53:58,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944374370] [2024-11-19 05:53:58,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:58,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:53:58,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:58,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:53:58,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:53:58,577 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 144 [2024-11-19 05:53:58,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 128 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:58,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:58,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 144 [2024-11-19 05:53:58,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:58,723 INFO L124 PetriNetUnfolderBase]: 92/791 cut-off events. [2024-11-19 05:53:58,723 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-19 05:53:58,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1028 conditions, 791 events. 92/791 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4695 event pairs, 30 based on Foata normal form. 0/721 useless extension candidates. Maximal degree in co-relation 1022. Up to 125 conditions per place. [2024-11-19 05:53:58,728 INFO L140 encePairwiseOnDemand]: 135/144 looper letters, 30 selfloop transitions, 6 changer transitions 0/141 dead transitions. [2024-11-19 05:53:58,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 141 transitions, 378 flow [2024-11-19 05:53:58,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:53:58,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:53:58,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 360 transitions. [2024-11-19 05:53:58,730 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2024-11-19 05:53:58,730 INFO L175 Difference]: Start difference. First operand has 136 places, 128 transitions, 277 flow. Second operand 3 states and 360 transitions. [2024-11-19 05:53:58,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 141 transitions, 378 flow [2024-11-19 05:53:58,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 141 transitions, 368 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 05:53:58,734 INFO L231 Difference]: Finished difference. Result has 133 places, 130 transitions, 305 flow [2024-11-19 05:53:58,734 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=305, PETRI_PLACES=133, PETRI_TRANSITIONS=130} [2024-11-19 05:53:58,735 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 1 predicate places. [2024-11-19 05:53:58,736 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 130 transitions, 305 flow [2024-11-19 05:53:58,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:58,736 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:58,736 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:53:58,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 05:53:58,737 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-19 05:53:58,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:58,737 INFO L85 PathProgramCache]: Analyzing trace with hash -983623192, now seen corresponding path program 1 times [2024-11-19 05:53:58,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:58,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130809389] [2024-11-19 05:53:58,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:58,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:58,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:58,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:58,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:58,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130809389] [2024-11-19 05:53:58,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130809389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:58,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:58,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:53:58,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164153698] [2024-11-19 05:53:58,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:58,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:53:58,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:58,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:53:58,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:53:58,813 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 144 [2024-11-19 05:53:58,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 130 transitions, 305 flow. Second operand has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:58,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:58,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 144 [2024-11-19 05:53:58,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:58,933 INFO L124 PetriNetUnfolderBase]: 95/793 cut-off events. [2024-11-19 05:53:58,933 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-11-19 05:53:58,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1128 conditions, 793 events. 95/793 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4750 event pairs, 60 based on Foata normal form. 0/723 useless extension candidates. Maximal degree in co-relation 1121. Up to 189 conditions per place. [2024-11-19 05:53:58,938 INFO L140 encePairwiseOnDemand]: 139/144 looper letters, 27 selfloop transitions, 4 changer transitions 0/137 dead transitions. [2024-11-19 05:53:58,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 137 transitions, 385 flow [2024-11-19 05:53:58,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:53:58,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:53:58,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2024-11-19 05:53:58,940 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8240740740740741 [2024-11-19 05:53:58,940 INFO L175 Difference]: Start difference. First operand has 133 places, 130 transitions, 305 flow. Second operand 3 states and 356 transitions. [2024-11-19 05:53:58,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 137 transitions, 385 flow [2024-11-19 05:53:58,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 137 transitions, 371 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:53:58,945 INFO L231 Difference]: Finished difference. Result has 135 places, 133 transitions, 325 flow [2024-11-19 05:53:58,945 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=144, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=325, PETRI_PLACES=135, PETRI_TRANSITIONS=133} [2024-11-19 05:53:58,947 INFO L277 CegarLoopForPetriNet]: 132 programPoint places, 3 predicate places. [2024-11-19 05:53:58,947 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 133 transitions, 325 flow [2024-11-19 05:53:58,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.33333333333333) internal successors, (334), 3 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:58,948 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:58,948 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:53:58,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 05:53:58,948 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-19 05:53:58,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:58,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1999974289, now seen corresponding path program 1 times [2024-11-19 05:53:58,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:58,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84834734] [2024-11-19 05:53:58,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:58,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:58,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:53:58,980 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 05:53:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:53:59,028 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 05:53:59,029 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 05:53:59,031 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-19 05:53:59,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-19 05:53:59,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-19 05:53:59,033 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-19 05:53:59,035 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-19 05:53:59,036 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-19 05:53:59,036 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-11-19 05:53:59,037 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-19 05:53:59,037 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-19 05:53:59,037 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-19 05:53:59,037 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-19 05:53:59,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-19 05:53:59,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 05:53:59,039 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-19 05:53:59,042 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 05:53:59,042 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-19 05:53:59,078 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 05:53:59,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 193 transitions, 402 flow [2024-11-19 05:53:59,139 INFO L124 PetriNetUnfolderBase]: 40/347 cut-off events. [2024-11-19 05:53:59,139 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-19 05:53:59,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359 conditions, 347 events. 40/347 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1223 event pairs, 0 based on Foata normal form. 0/285 useless extension candidates. Maximal degree in co-relation 209. Up to 9 conditions per place. [2024-11-19 05:53:59,143 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 193 transitions, 402 flow [2024-11-19 05:53:59,146 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 176 places, 193 transitions, 402 flow [2024-11-19 05:53:59,147 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:53:59,148 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;@7484062a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:53:59,148 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-19 05:53:59,152 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:53:59,152 INFO L124 PetriNetUnfolderBase]: 4/49 cut-off events. [2024-11-19 05:53:59,152 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:53:59,152 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:59,152 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] [2024-11-19 05:53:59,153 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-19 05:53:59,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:59,153 INFO L85 PathProgramCache]: Analyzing trace with hash -930480128, now seen corresponding path program 1 times [2024-11-19 05:53:59,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:59,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127147455] [2024-11-19 05:53:59,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:59,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:59,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:59,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:59,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127147455] [2024-11-19 05:53:59,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127147455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:59,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:59,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:53:59,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259215909] [2024-11-19 05:53:59,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:59,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 05:53:59,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:59,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 05:53:59,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 05:53:59,174 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 193 [2024-11-19 05:53:59,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 193 transitions, 402 flow. Second operand has 2 states, 2 states have (on average 154.0) internal successors, (308), 2 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:59,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:59,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 193 [2024-11-19 05:53:59,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:59,501 INFO L124 PetriNetUnfolderBase]: 421/2602 cut-off events. [2024-11-19 05:53:59,501 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-11-19 05:53:59,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3361 conditions, 2602 events. 421/2602 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 21186 event pairs, 414 based on Foata normal form. 577/2911 useless extension candidates. Maximal degree in co-relation 2797. Up to 716 conditions per place. [2024-11-19 05:53:59,529 INFO L140 encePairwiseOnDemand]: 174/193 looper letters, 20 selfloop transitions, 0 changer transitions 0/172 dead transitions. [2024-11-19 05:53:59,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 172 transitions, 400 flow [2024-11-19 05:53:59,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 05:53:59,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-19 05:53:59,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 345 transitions. [2024-11-19 05:53:59,531 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8937823834196891 [2024-11-19 05:53:59,592 INFO L175 Difference]: Start difference. First operand has 176 places, 193 transitions, 402 flow. Second operand 2 states and 345 transitions. [2024-11-19 05:53:59,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 172 transitions, 400 flow [2024-11-19 05:53:59,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 172 transitions, 400 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:53:59,597 INFO L231 Difference]: Finished difference. Result has 175 places, 172 transitions, 360 flow [2024-11-19 05:53:59,598 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=360, PETRI_PLACES=175, PETRI_TRANSITIONS=172} [2024-11-19 05:53:59,599 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, -1 predicate places. [2024-11-19 05:53:59,600 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 172 transitions, 360 flow [2024-11-19 05:53:59,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 154.0) internal successors, (308), 2 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:59,600 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:59,600 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:53:59,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 05:53:59,601 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-19 05:53:59,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:59,602 INFO L85 PathProgramCache]: Analyzing trace with hash -886944789, now seen corresponding path program 1 times [2024-11-19 05:53:59,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:59,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867855568] [2024-11-19 05:53:59,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:59,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:59,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:59,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:59,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:59,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867855568] [2024-11-19 05:53:59,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867855568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:59,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:59,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:53:59,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427799044] [2024-11-19 05:53:59,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:59,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:53:59,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:59,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:53:59,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:53:59,671 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 193 [2024-11-19 05:53:59,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 172 transitions, 360 flow. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:59,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:59,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 193 [2024-11-19 05:53:59,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:00,230 INFO L124 PetriNetUnfolderBase]: 802/4340 cut-off events. [2024-11-19 05:54:00,231 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-11-19 05:54:00,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5694 conditions, 4340 events. 802/4340 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 41568 event pairs, 348 based on Foata normal form. 1/3941 useless extension candidates. Maximal degree in co-relation 5689. Up to 1303 conditions per place. [2024-11-19 05:54:00,266 INFO L140 encePairwiseOnDemand]: 190/193 looper letters, 31 selfloop transitions, 2 changer transitions 0/179 dead transitions. [2024-11-19 05:54:00,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 179 transitions, 440 flow [2024-11-19 05:54:00,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:00,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:00,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 475 transitions. [2024-11-19 05:54:00,268 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8203799654576857 [2024-11-19 05:54:00,268 INFO L175 Difference]: Start difference. First operand has 175 places, 172 transitions, 360 flow. Second operand 3 states and 475 transitions. [2024-11-19 05:54:00,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 179 transitions, 440 flow [2024-11-19 05:54:00,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 179 transitions, 440 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:54:00,273 INFO L231 Difference]: Finished difference. Result has 178 places, 173 transitions, 372 flow [2024-11-19 05:54:00,274 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=372, PETRI_PLACES=178, PETRI_TRANSITIONS=173} [2024-11-19 05:54:00,275 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, 2 predicate places. [2024-11-19 05:54:00,275 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 173 transitions, 372 flow [2024-11-19 05:54:00,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:00,276 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:00,277 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] [2024-11-19 05:54:00,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 05:54:00,277 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-19 05:54:00,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:00,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1010920344, now seen corresponding path program 1 times [2024-11-19 05:54:00,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:00,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344957647] [2024-11-19 05:54:00,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:00,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:00,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:00,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:00,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344957647] [2024-11-19 05:54:00,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344957647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:00,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:00,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:54:00,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160436468] [2024-11-19 05:54:00,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:00,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:54:00,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:00,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:54:00,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:54:00,675 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 193 [2024-11-19 05:54:00,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 173 transitions, 372 flow. Second operand has 6 states, 6 states have (on average 136.5) internal successors, (819), 6 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:00,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:00,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 193 [2024-11-19 05:54:00,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:01,634 INFO L124 PetriNetUnfolderBase]: 1739/6865 cut-off events. [2024-11-19 05:54:01,635 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-11-19 05:54:01,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9836 conditions, 6865 events. 1739/6865 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 68791 event pairs, 760 based on Foata normal form. 0/6164 useless extension candidates. Maximal degree in co-relation 9829. Up to 2015 conditions per place. [2024-11-19 05:54:01,698 INFO L140 encePairwiseOnDemand]: 187/193 looper letters, 80 selfloop transitions, 6 changer transitions 0/220 dead transitions. [2024-11-19 05:54:01,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 220 transitions, 638 flow [2024-11-19 05:54:01,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:54:01,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:54:01,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 896 transitions. [2024-11-19 05:54:01,703 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7737478411053541 [2024-11-19 05:54:01,703 INFO L175 Difference]: Start difference. First operand has 178 places, 173 transitions, 372 flow. Second operand 6 states and 896 transitions. [2024-11-19 05:54:01,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 220 transitions, 638 flow [2024-11-19 05:54:01,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 220 transitions, 636 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:54:01,708 INFO L231 Difference]: Finished difference. Result has 181 places, 172 transitions, 380 flow [2024-11-19 05:54:01,709 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=380, PETRI_PLACES=181, PETRI_TRANSITIONS=172} [2024-11-19 05:54:01,709 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, 5 predicate places. [2024-11-19 05:54:01,710 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 172 transitions, 380 flow [2024-11-19 05:54:01,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.5) internal successors, (819), 6 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:01,710 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:01,711 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:01,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 05:54:01,711 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-19 05:54:01,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:01,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1827650231, now seen corresponding path program 1 times [2024-11-19 05:54:01,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:01,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536333130] [2024-11-19 05:54:01,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:01,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:01,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:01,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:01,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536333130] [2024-11-19 05:54:01,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536333130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:01,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:01,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:54:01,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549556015] [2024-11-19 05:54:01,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:01,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:01,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:01,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:01,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:01,789 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 193 [2024-11-19 05:54:01,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 172 transitions, 380 flow. Second operand has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:01,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:01,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 193 [2024-11-19 05:54:01,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:03,625 INFO L124 PetriNetUnfolderBase]: 4085/14792 cut-off events. [2024-11-19 05:54:03,625 INFO L125 PetriNetUnfolderBase]: For 240/240 co-relation queries the response was YES. [2024-11-19 05:54:03,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21539 conditions, 14792 events. 4085/14792 cut-off events. For 240/240 co-relation queries the response was YES. Maximal size of possible extension queue 386. Compared 164322 event pairs, 1409 based on Foata normal form. 0/13243 useless extension candidates. Maximal degree in co-relation 21532. Up to 3578 conditions per place. [2024-11-19 05:54:03,731 INFO L140 encePairwiseOnDemand]: 174/193 looper letters, 58 selfloop transitions, 14 changer transitions 0/205 dead transitions. [2024-11-19 05:54:03,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 205 transitions, 601 flow [2024-11-19 05:54:03,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:03,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:03,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 479 transitions. [2024-11-19 05:54:03,734 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8272884283246977 [2024-11-19 05:54:03,734 INFO L175 Difference]: Start difference. First operand has 181 places, 172 transitions, 380 flow. Second operand 3 states and 479 transitions. [2024-11-19 05:54:03,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 205 transitions, 601 flow [2024-11-19 05:54:03,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 205 transitions, 589 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 05:54:03,738 INFO L231 Difference]: Finished difference. Result has 180 places, 186 transitions, 490 flow [2024-11-19 05:54:03,739 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=490, PETRI_PLACES=180, PETRI_TRANSITIONS=186} [2024-11-19 05:54:03,740 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, 4 predicate places. [2024-11-19 05:54:03,740 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 186 transitions, 490 flow [2024-11-19 05:54:03,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.66666666666666) internal successors, (407), 3 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:03,741 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:03,741 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:03,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 05:54:03,741 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-19 05:54:03,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:03,744 INFO L85 PathProgramCache]: Analyzing trace with hash 909106138, now seen corresponding path program 1 times [2024-11-19 05:54:03,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:03,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906803944] [2024-11-19 05:54:03,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:03,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:03,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:03,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:03,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:03,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906803944] [2024-11-19 05:54:03,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906803944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:03,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:03,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:54:03,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982482004] [2024-11-19 05:54:03,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:03,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:03,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:03,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:03,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:03,829 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 193 [2024-11-19 05:54:03,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 186 transitions, 490 flow. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:03,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:03,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 193 [2024-11-19 05:54:03,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:05,664 INFO L124 PetriNetUnfolderBase]: 4151/16635 cut-off events. [2024-11-19 05:54:05,665 INFO L125 PetriNetUnfolderBase]: For 4322/4497 co-relation queries the response was YES. [2024-11-19 05:54:05,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27453 conditions, 16635 events. 4151/16635 cut-off events. For 4322/4497 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 195215 event pairs, 2411 based on Foata normal form. 46/15100 useless extension candidates. Maximal degree in co-relation 27445. Up to 5625 conditions per place. [2024-11-19 05:54:05,880 INFO L140 encePairwiseOnDemand]: 184/193 looper letters, 52 selfloop transitions, 14 changer transitions 0/210 dead transitions. [2024-11-19 05:54:05,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 210 transitions, 708 flow [2024-11-19 05:54:05,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:05,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:05,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 473 transitions. [2024-11-19 05:54:05,883 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8169257340241797 [2024-11-19 05:54:05,883 INFO L175 Difference]: Start difference. First operand has 180 places, 186 transitions, 490 flow. Second operand 3 states and 473 transitions. [2024-11-19 05:54:05,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 210 transitions, 708 flow [2024-11-19 05:54:05,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 210 transitions, 670 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:54:05,901 INFO L231 Difference]: Finished difference. Result has 182 places, 198 transitions, 588 flow [2024-11-19 05:54:05,903 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=588, PETRI_PLACES=182, PETRI_TRANSITIONS=198} [2024-11-19 05:54:05,904 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, 6 predicate places. [2024-11-19 05:54:05,904 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 198 transitions, 588 flow [2024-11-19 05:54:05,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:05,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:05,905 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:05,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 05:54:05,905 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-19 05:54:05,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:05,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1460415895, now seen corresponding path program 1 times [2024-11-19 05:54:05,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:05,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774163622] [2024-11-19 05:54:05,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:05,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:05,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:06,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:06,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:06,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774163622] [2024-11-19 05:54:06,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774163622] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:54:06,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314561289] [2024-11-19 05:54:06,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:06,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:54:06,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:54:06,011 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:54:06,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 05:54:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:06,107 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 05:54:06,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:54:06,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:06,206 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:54:06,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:06,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314561289] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:54:06,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:54:06,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-19 05:54:06,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794500378] [2024-11-19 05:54:06,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:54:06,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:54:06,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:06,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:54:06,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 05:54:06,345 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 193 [2024-11-19 05:54:06,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 198 transitions, 588 flow. Second operand has 10 states, 10 states have (on average 146.5) internal successors, (1465), 10 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:06,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:06,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 193 [2024-11-19 05:54:06,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:06,771 INFO L124 PetriNetUnfolderBase]: 762/3672 cut-off events. [2024-11-19 05:54:06,771 INFO L125 PetriNetUnfolderBase]: For 511/522 co-relation queries the response was YES. [2024-11-19 05:54:06,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5704 conditions, 3672 events. 762/3672 cut-off events. For 511/522 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 33068 event pairs, 75 based on Foata normal form. 105/3541 useless extension candidates. Maximal degree in co-relation 5695. Up to 478 conditions per place. [2024-11-19 05:54:06,794 INFO L140 encePairwiseOnDemand]: 188/193 looper letters, 72 selfloop transitions, 7 changer transitions 0/202 dead transitions. [2024-11-19 05:54:06,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 202 transitions, 708 flow [2024-11-19 05:54:06,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:54:06,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:54:06,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1377 transitions. [2024-11-19 05:54:06,798 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7927461139896373 [2024-11-19 05:54:06,798 INFO L175 Difference]: Start difference. First operand has 182 places, 198 transitions, 588 flow. Second operand 9 states and 1377 transitions. [2024-11-19 05:54:06,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 202 transitions, 708 flow [2024-11-19 05:54:06,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 202 transitions, 688 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:54:06,806 INFO L231 Difference]: Finished difference. Result has 143 places, 146 transitions, 432 flow [2024-11-19 05:54:06,806 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=432, PETRI_PLACES=143, PETRI_TRANSITIONS=146} [2024-11-19 05:54:06,807 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, -33 predicate places. [2024-11-19 05:54:06,807 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 146 transitions, 432 flow [2024-11-19 05:54:06,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.5) internal successors, (1465), 10 states have internal predecessors, (1465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:06,808 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:06,808 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:06,827 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 05:54:07,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-19 05:54:07,011 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-19 05:54:07,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:07,011 INFO L85 PathProgramCache]: Analyzing trace with hash -685547369, now seen corresponding path program 1 times [2024-11-19 05:54:07,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:07,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584317208] [2024-11-19 05:54:07,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:07,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:07,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:07,070 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 05:54:07,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:07,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584317208] [2024-11-19 05:54:07,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584317208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:07,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:07,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:54:07,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69882912] [2024-11-19 05:54:07,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:07,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:07,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:07,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:07,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:07,153 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 193 [2024-11-19 05:54:07,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 146 transitions, 432 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:07,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:07,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 193 [2024-11-19 05:54:07,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:07,316 INFO L124 PetriNetUnfolderBase]: 260/1287 cut-off events. [2024-11-19 05:54:07,317 INFO L125 PetriNetUnfolderBase]: For 454/475 co-relation queries the response was YES. [2024-11-19 05:54:07,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2333 conditions, 1287 events. 260/1287 cut-off events. For 454/475 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 8696 event pairs, 132 based on Foata normal form. 7/1202 useless extension candidates. Maximal degree in co-relation 2324. Up to 459 conditions per place. [2024-11-19 05:54:07,330 INFO L140 encePairwiseOnDemand]: 185/193 looper letters, 42 selfloop transitions, 12 changer transitions 0/160 dead transitions. [2024-11-19 05:54:07,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 160 transitions, 584 flow [2024-11-19 05:54:07,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:07,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:07,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 459 transitions. [2024-11-19 05:54:07,333 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7927461139896373 [2024-11-19 05:54:07,333 INFO L175 Difference]: Start difference. First operand has 143 places, 146 transitions, 432 flow. Second operand 3 states and 459 transitions. [2024-11-19 05:54:07,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 160 transitions, 584 flow [2024-11-19 05:54:07,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 160 transitions, 569 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-19 05:54:07,337 INFO L231 Difference]: Finished difference. Result has 142 places, 154 transitions, 515 flow [2024-11-19 05:54:07,338 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=515, PETRI_PLACES=142, PETRI_TRANSITIONS=154} [2024-11-19 05:54:07,338 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, -34 predicate places. [2024-11-19 05:54:07,338 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 154 transitions, 515 flow [2024-11-19 05:54:07,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:07,339 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:07,339 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:07,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 05:54:07,340 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-19 05:54:07,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:07,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1241489000, now seen corresponding path program 1 times [2024-11-19 05:54:07,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:07,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792900432] [2024-11-19 05:54:07,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:07,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:07,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:07,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:07,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792900432] [2024-11-19 05:54:07,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792900432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:07,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:07,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:54:07,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295775252] [2024-11-19 05:54:07,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:07,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:07,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:07,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:07,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:07,436 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 193 [2024-11-19 05:54:07,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 154 transitions, 515 flow. Second operand has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:07,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:07,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 193 [2024-11-19 05:54:07,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:07,598 INFO L124 PetriNetUnfolderBase]: 291/1359 cut-off events. [2024-11-19 05:54:07,599 INFO L125 PetriNetUnfolderBase]: For 1124/1159 co-relation queries the response was YES. [2024-11-19 05:54:07,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2787 conditions, 1359 events. 291/1359 cut-off events. For 1124/1159 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 9379 event pairs, 134 based on Foata normal form. 9/1292 useless extension candidates. Maximal degree in co-relation 2778. Up to 501 conditions per place. [2024-11-19 05:54:07,614 INFO L140 encePairwiseOnDemand]: 185/193 looper letters, 49 selfloop transitions, 12 changer transitions 0/169 dead transitions. [2024-11-19 05:54:07,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 169 transitions, 704 flow [2024-11-19 05:54:07,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:07,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:07,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 460 transitions. [2024-11-19 05:54:07,617 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7944732297063903 [2024-11-19 05:54:07,617 INFO L175 Difference]: Start difference. First operand has 142 places, 154 transitions, 515 flow. Second operand 3 states and 460 transitions. [2024-11-19 05:54:07,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 169 transitions, 704 flow [2024-11-19 05:54:07,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 169 transitions, 676 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:54:07,624 INFO L231 Difference]: Finished difference. Result has 144 places, 162 transitions, 601 flow [2024-11-19 05:54:07,624 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=491, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=601, PETRI_PLACES=144, PETRI_TRANSITIONS=162} [2024-11-19 05:54:07,625 INFO L277 CegarLoopForPetriNet]: 176 programPoint places, -32 predicate places. [2024-11-19 05:54:07,626 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 162 transitions, 601 flow [2024-11-19 05:54:07,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:07,626 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:07,626 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-19 05:54:07,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 05:54:07,627 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-19 05:54:07,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:07,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1863380673, now seen corresponding path program 1 times [2024-11-19 05:54:07,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:07,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81209995] [2024-11-19 05:54:07,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:07,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:54:07,656 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 05:54:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:54:07,686 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 05:54:07,686 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 05:54:07,687 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 16 remaining) [2024-11-19 05:54:07,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 16 remaining) [2024-11-19 05:54:07,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 16 remaining) [2024-11-19 05:54:07,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 16 remaining) [2024-11-19 05:54:07,687 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 16 remaining) [2024-11-19 05:54:07,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (10 of 16 remaining) [2024-11-19 05:54:07,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 16 remaining) [2024-11-19 05:54:07,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 16 remaining) [2024-11-19 05:54:07,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 16 remaining) [2024-11-19 05:54:07,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 16 remaining) [2024-11-19 05:54:07,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 16 remaining) [2024-11-19 05:54:07,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 16 remaining) [2024-11-19 05:54:07,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 16 remaining) [2024-11-19 05:54:07,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 16 remaining) [2024-11-19 05:54:07,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 16 remaining) [2024-11-19 05:54:07,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 16 remaining) [2024-11-19 05:54:07,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 05:54:07,689 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:07,690 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 05:54:07,690 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-19 05:54:07,715 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-19 05:54:07,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 220 places, 242 transitions, 511 flow [2024-11-19 05:54:07,778 INFO L124 PetriNetUnfolderBase]: 62/532 cut-off events. [2024-11-19 05:54:07,778 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-19 05:54:07,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 557 conditions, 532 events. 62/532 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2051 event pairs, 1 based on Foata normal form. 0/438 useless extension candidates. Maximal degree in co-relation 355. Up to 16 conditions per place. [2024-11-19 05:54:07,785 INFO L82 GeneralOperation]: Start removeDead. Operand has 220 places, 242 transitions, 511 flow [2024-11-19 05:54:07,791 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 220 places, 242 transitions, 511 flow [2024-11-19 05:54:07,792 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:54:07,792 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;@7484062a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:54:07,792 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-19 05:54:07,795 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:54:07,795 INFO L124 PetriNetUnfolderBase]: 4/49 cut-off events. [2024-11-19 05:54:07,795 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:54:07,796 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:07,796 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] [2024-11-19 05:54:07,796 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-19 05:54:07,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:07,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1938267136, now seen corresponding path program 1 times [2024-11-19 05:54:07,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:07,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571979978] [2024-11-19 05:54:07,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:07,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:07,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:07,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:07,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:07,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571979978] [2024-11-19 05:54:07,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571979978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:07,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:07,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:54:07,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072016526] [2024-11-19 05:54:07,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:07,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 05:54:07,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:07,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 05:54:07,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 05:54:07,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 242 [2024-11-19 05:54:07,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 242 transitions, 511 flow. Second operand has 2 states, 2 states have (on average 189.0) internal successors, (378), 2 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:07,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:07,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 242 [2024-11-19 05:54:07,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:10,888 INFO L124 PetriNetUnfolderBase]: 4833/20255 cut-off events. [2024-11-19 05:54:10,888 INFO L125 PetriNetUnfolderBase]: For 940/940 co-relation queries the response was YES. [2024-11-19 05:54:10,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27680 conditions, 20255 events. 4833/20255 cut-off events. For 940/940 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 243219 event pairs, 4795 based on Foata normal form. 5465/23774 useless extension candidates. Maximal degree in co-relation 23268. Up to 6995 conditions per place. [2024-11-19 05:54:11,033 INFO L140 encePairwiseOnDemand]: 217/242 looper letters, 28 selfloop transitions, 0 changer transitions 0/215 dead transitions. [2024-11-19 05:54:11,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 215 transitions, 513 flow [2024-11-19 05:54:11,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 05:54:11,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-19 05:54:11,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 429 transitions. [2024-11-19 05:54:11,038 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8863636363636364 [2024-11-19 05:54:11,038 INFO L175 Difference]: Start difference. First operand has 220 places, 242 transitions, 511 flow. Second operand 2 states and 429 transitions. [2024-11-19 05:54:11,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 215 transitions, 513 flow [2024-11-19 05:54:11,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 215 transitions, 513 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:54:11,044 INFO L231 Difference]: Finished difference. Result has 219 places, 215 transitions, 457 flow [2024-11-19 05:54:11,047 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=457, PETRI_PLACES=219, PETRI_TRANSITIONS=215} [2024-11-19 05:54:11,047 INFO L277 CegarLoopForPetriNet]: 220 programPoint places, -1 predicate places. [2024-11-19 05:54:11,048 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 215 transitions, 457 flow [2024-11-19 05:54:11,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 189.0) internal successors, (378), 2 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:11,048 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:11,048 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:11,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 05:54:11,049 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-19 05:54:11,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:11,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1292357163, now seen corresponding path program 1 times [2024-11-19 05:54:11,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:11,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091456133] [2024-11-19 05:54:11,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:11,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:11,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:11,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:11,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091456133] [2024-11-19 05:54:11,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091456133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:11,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:11,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:54:11,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890903170] [2024-11-19 05:54:11,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:11,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:11,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:11,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:11,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:11,112 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 242 [2024-11-19 05:54:11,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 215 transitions, 457 flow. Second operand has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:11,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:11,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 242 [2024-11-19 05:54:11,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:15,176 INFO L124 PetriNetUnfolderBase]: 8969/35405 cut-off events. [2024-11-19 05:54:15,176 INFO L125 PetriNetUnfolderBase]: For 937/937 co-relation queries the response was YES. [2024-11-19 05:54:15,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48644 conditions, 35405 events. 8969/35405 cut-off events. For 937/937 co-relation queries the response was YES. Maximal size of possible extension queue 762. Compared 458373 event pairs, 8324 based on Foata normal form. 1/32003 useless extension candidates. Maximal degree in co-relation 48638. Up to 12802 conditions per place. [2024-11-19 05:54:15,452 INFO L140 encePairwiseOnDemand]: 239/242 looper letters, 39 selfloop transitions, 2 changer transitions 0/222 dead transitions. [2024-11-19 05:54:15,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 222 transitions, 553 flow [2024-11-19 05:54:15,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:15,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:15,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 588 transitions. [2024-11-19 05:54:15,455 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8099173553719008 [2024-11-19 05:54:15,455 INFO L175 Difference]: Start difference. First operand has 219 places, 215 transitions, 457 flow. Second operand 3 states and 588 transitions. [2024-11-19 05:54:15,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 222 transitions, 553 flow [2024-11-19 05:54:15,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 222 transitions, 553 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:54:15,461 INFO L231 Difference]: Finished difference. Result has 222 places, 216 transitions, 469 flow [2024-11-19 05:54:15,462 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=469, PETRI_PLACES=222, PETRI_TRANSITIONS=216} [2024-11-19 05:54:15,463 INFO L277 CegarLoopForPetriNet]: 220 programPoint places, 2 predicate places. [2024-11-19 05:54:15,463 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 216 transitions, 469 flow [2024-11-19 05:54:15,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:15,464 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:15,464 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] [2024-11-19 05:54:15,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 05:54:15,464 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-19 05:54:15,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:15,465 INFO L85 PathProgramCache]: Analyzing trace with hash 2122930970, now seen corresponding path program 1 times [2024-11-19 05:54:15,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:15,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450371780] [2024-11-19 05:54:15,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:15,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:15,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:15,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:15,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450371780] [2024-11-19 05:54:15,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450371780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:15,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:15,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:54:15,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735776720] [2024-11-19 05:54:15,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:15,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:54:15,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:15,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:54:15,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:54:15,956 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 242 [2024-11-19 05:54:15,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 216 transitions, 469 flow. Second operand has 6 states, 6 states have (on average 171.5) internal successors, (1029), 6 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:15,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:15,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 242 [2024-11-19 05:54:15,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:23,565 INFO L124 PetriNetUnfolderBase]: 19695/66075 cut-off events. [2024-11-19 05:54:23,565 INFO L125 PetriNetUnfolderBase]: For 1505/1505 co-relation queries the response was YES. [2024-11-19 05:54:23,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95001 conditions, 66075 events. 19695/66075 cut-off events. For 1505/1505 co-relation queries the response was YES. Maximal size of possible extension queue 1355. Compared 893559 event pairs, 7382 based on Foata normal form. 0/60323 useless extension candidates. Maximal degree in co-relation 94993. Up to 20118 conditions per place. [2024-11-19 05:54:24,076 INFO L140 encePairwiseOnDemand]: 236/242 looper letters, 112 selfloop transitions, 6 changer transitions 0/287 dead transitions. [2024-11-19 05:54:24,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 287 transitions, 847 flow [2024-11-19 05:54:24,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:54:24,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:54:24,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1138 transitions. [2024-11-19 05:54:24,080 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7837465564738292 [2024-11-19 05:54:24,080 INFO L175 Difference]: Start difference. First operand has 222 places, 216 transitions, 469 flow. Second operand 6 states and 1138 transitions. [2024-11-19 05:54:24,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 287 transitions, 847 flow [2024-11-19 05:54:24,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 287 transitions, 845 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:54:24,086 INFO L231 Difference]: Finished difference. Result has 225 places, 215 transitions, 477 flow [2024-11-19 05:54:24,087 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=477, PETRI_PLACES=225, PETRI_TRANSITIONS=215} [2024-11-19 05:54:24,087 INFO L277 CegarLoopForPetriNet]: 220 programPoint places, 5 predicate places. [2024-11-19 05:54:24,087 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 215 transitions, 477 flow [2024-11-19 05:54:24,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.5) internal successors, (1029), 6 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:24,088 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:24,088 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:24,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 05:54:24,088 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-19 05:54:24,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:24,089 INFO L85 PathProgramCache]: Analyzing trace with hash 2072502008, now seen corresponding path program 1 times [2024-11-19 05:54:24,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:24,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141308475] [2024-11-19 05:54:24,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:24,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:24,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:24,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:24,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141308475] [2024-11-19 05:54:24,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141308475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:24,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:24,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:54:24,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275545717] [2024-11-19 05:54:24,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:24,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:24,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:24,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:24,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:24,165 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 242 [2024-11-19 05:54:24,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 215 transitions, 477 flow. Second operand has 3 states, 3 states have (on average 162.66666666666666) internal successors, (488), 3 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:24,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:24,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 242 [2024-11-19 05:54:24,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand