./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8be7027f 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_37-indirect_racing.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 78ae3f0dde82ce244d0cacebded5945a3f759d1f5aeba1d4553a1f59ef165385 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 12:33:39,735 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 12:33:39,790 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-12 12:33:39,794 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 12:33:39,795 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 12:33:39,839 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 12:33:39,839 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 12:33:39,840 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 12:33:39,840 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 12:33:39,841 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 12:33:39,842 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 12:33:39,843 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 12:33:39,844 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 12:33:39,845 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 12:33:39,849 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 12:33:39,849 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 12:33:39,850 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 12:33:39,850 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 12:33:39,850 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 12:33:39,850 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 12:33:39,851 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 12:33:39,852 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 12:33:39,853 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-12 12:33:39,853 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 12:33:39,853 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 12:33:39,853 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 12:33:39,853 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 12:33:39,854 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 12:33:39,854 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 12:33:39,854 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 12:33:39,856 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 12:33:39,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:33:39,857 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 12:33:39,857 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 12:33:39,857 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 12:33:39,858 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 12:33:39,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 12:33:39,858 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 12:33:39,858 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 12:33:39,858 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 12:33:39,859 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 12:33:39,859 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78ae3f0dde82ce244d0cacebded5945a3f759d1f5aeba1d4553a1f59ef165385 [2024-11-12 12:33:40,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 12:33:40,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 12:33:40,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 12:33:40,120 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 12:33:40,120 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 12:33:40,121 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i [2024-11-12 12:33:41,622 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 12:33:41,872 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 12:33:41,873 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_37-indirect_racing.i [2024-11-12 12:33:41,888 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3af2a8cd1/61dceb069e374b3f9146b92e3bf3dc60/FLAGf76da89c2 [2024-11-12 12:33:41,906 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3af2a8cd1/61dceb069e374b3f9146b92e3bf3dc60 [2024-11-12 12:33:41,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 12:33:41,910 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 12:33:41,911 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 12:33:41,911 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 12:33:41,917 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 12:33:41,918 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:33:41" (1/1) ... [2024-11-12 12:33:41,920 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fd0dcb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:33:41, skipping insertion in model container [2024-11-12 12:33:41,921 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:33:41" (1/1) ... [2024-11-12 12:33:41,969 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 12:33:42,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:33:42,345 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 12:33:42,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:33:42,461 INFO L204 MainTranslator]: Completed translation [2024-11-12 12:33:42,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:33:42 WrapperNode [2024-11-12 12:33:42,462 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 12:33:42,463 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 12:33:42,463 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 12:33:42,463 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 12:33:42,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:33:42" (1/1) ... [2024-11-12 12:33:42,493 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:33:42" (1/1) ... [2024-11-12 12:33:42,527 INFO L138 Inliner]: procedures = 171, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 108 [2024-11-12 12:33:42,527 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 12:33:42,528 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 12:33:42,528 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 12:33:42,528 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 12:33:42,540 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:33:42" (1/1) ... [2024-11-12 12:33:42,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:33:42" (1/1) ... [2024-11-12 12:33:42,543 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:33:42" (1/1) ... [2024-11-12 12:33:42,546 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:33:42" (1/1) ... [2024-11-12 12:33:42,564 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:33:42" (1/1) ... [2024-11-12 12:33:42,572 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:33:42" (1/1) ... [2024-11-12 12:33:42,574 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:33:42" (1/1) ... [2024-11-12 12:33:42,579 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:33:42" (1/1) ... [2024-11-12 12:33:42,586 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 12:33:42,587 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 12:33:42,587 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 12:33:42,587 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 12:33:42,588 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:33:42" (1/1) ... [2024-11-12 12:33:42,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:33:42,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:33:42,632 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) [2024-11-12 12:33:42,635 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 [2024-11-12 12:33:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-12 12:33:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-12 12:33:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-12 12:33:42,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 12:33:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 12:33:42,688 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-12 12:33:42,688 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-12 12:33:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 12:33:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-12 12:33:42,689 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-12 12:33:42,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 12:33:42,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 12:33:42,692 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 12:33:42,841 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 12:33:42,845 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 12:33:43,171 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 12:33:43,172 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 12:33:43,214 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 12:33:43,219 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-12 12:33:43,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:33:43 BoogieIcfgContainer [2024-11-12 12:33:43,219 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 12:33:43,223 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 12:33:43,223 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 12:33:43,227 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 12:33:43,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:33:41" (1/3) ... [2024-11-12 12:33:43,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@616a376b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:33:43, skipping insertion in model container [2024-11-12 12:33:43,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:33:42" (2/3) ... [2024-11-12 12:33:43,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@616a376b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:33:43, skipping insertion in model container [2024-11-12 12:33:43,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:33:43" (3/3) ... [2024-11-12 12:33:43,231 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_37-indirect_racing.i [2024-11-12 12:33:43,249 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 12:33:43,249 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-11-12 12:33:43,249 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 12:33:43,362 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-12 12:33:43,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 185 transitions, 377 flow [2024-11-12 12:33:43,519 INFO L124 PetriNetUnfolderBase]: 19/248 cut-off events. [2024-11-12 12:33:43,519 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:33:43,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 248 events. 19/248 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 750 event pairs, 0 based on Foata normal form. 0/209 useless extension candidates. Maximal degree in co-relation 135. Up to 4 conditions per place. [2024-11-12 12:33:43,529 INFO L82 GeneralOperation]: Start removeDead. Operand has 175 places, 185 transitions, 377 flow [2024-11-12 12:33:43,538 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 175 places, 185 transitions, 377 flow [2024-11-12 12:33:43,548 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:33:43,555 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;@5040fb1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:33:43,555 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-12 12:33:43,562 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:33:43,562 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-11-12 12:33:43,562 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:33:43,563 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:33:43,563 INFO L206 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] [2024-11-12 12:33:43,564 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-12 12:33:43,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:33:43,572 INFO L85 PathProgramCache]: Analyzing trace with hash -519905131, now seen corresponding path program 1 times [2024-11-12 12:33:43,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:33:43,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355001397] [2024-11-12 12:33:43,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:33:43,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:33:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:33:43,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:33:43,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:33:43,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355001397] [2024-11-12 12:33:43,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355001397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:33:43,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:33:43,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:33:43,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943955801] [2024-11-12 12:33:43,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:33:43,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:33:43,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:33:43,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:33:43,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:33:43,914 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-12 12:33:43,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 185 transitions, 377 flow. Second operand has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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) [2024-11-12 12:33:43,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:33:43,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-12 12:33:43,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:33:44,032 INFO L124 PetriNetUnfolderBase]: 25/497 cut-off events. [2024-11-12 12:33:44,033 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-12 12:33:44,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 573 conditions, 497 events. 25/497 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1943 event pairs, 24 based on Foata normal form. 54/500 useless extension candidates. Maximal degree in co-relation 451. Up to 69 conditions per place. [2024-11-12 12:33:44,042 INFO L140 encePairwiseOnDemand]: 170/185 looper letters, 16 selfloop transitions, 2 changer transitions 0/170 dead transitions. [2024-11-12 12:33:44,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 170 transitions, 383 flow [2024-11-12 12:33:44,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:33:44,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:33:44,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 490 transitions. [2024-11-12 12:33:44,060 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8828828828828829 [2024-11-12 12:33:44,063 INFO L175 Difference]: Start difference. First operand has 175 places, 185 transitions, 377 flow. Second operand 3 states and 490 transitions. [2024-11-12 12:33:44,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 170 transitions, 383 flow [2024-11-12 12:33:44,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 170 transitions, 383 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:33:44,072 INFO L231 Difference]: Finished difference. Result has 174 places, 170 transitions, 351 flow [2024-11-12 12:33:44,075 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=347, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=351, PETRI_PLACES=174, PETRI_TRANSITIONS=170} [2024-11-12 12:33:44,078 INFO L279 CegarLoopForPetriNet]: 175 programPoint places, -1 predicate places. [2024-11-12 12:33:44,082 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 170 transitions, 351 flow [2024-11-12 12:33:44,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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) [2024-11-12 12:33:44,082 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:33:44,082 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:33:44,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 12:33:44,083 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-12 12:33:44,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:33:44,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1412609993, now seen corresponding path program 1 times [2024-11-12 12:33:44,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:33:44,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161144482] [2024-11-12 12:33:44,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:33:44,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:33:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:33:44,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:33:44,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:33:44,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161144482] [2024-11-12 12:33:44,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161144482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:33:44,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:33:44,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:33:44,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647163600] [2024-11-12 12:33:44,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:33:44,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:33:44,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:33:44,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:33:44,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:33:44,160 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 185 [2024-11-12 12:33:44,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 170 transitions, 351 flow. Second operand has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 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) [2024-11-12 12:33:44,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:33:44,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 185 [2024-11-12 12:33:44,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:33:44,284 INFO L124 PetriNetUnfolderBase]: 25/494 cut-off events. [2024-11-12 12:33:44,284 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-12 12:33:44,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 570 conditions, 494 events. 25/494 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1936 event pairs, 24 based on Foata normal form. 0/448 useless extension candidates. Maximal degree in co-relation 530. Up to 66 conditions per place. [2024-11-12 12:33:44,287 INFO L140 encePairwiseOnDemand]: 182/185 looper letters, 14 selfloop transitions, 1 changer transitions 0/168 dead transitions. [2024-11-12 12:33:44,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 168 transitions, 377 flow [2024-11-12 12:33:44,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:33:44,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:33:44,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 482 transitions. [2024-11-12 12:33:44,294 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8684684684684685 [2024-11-12 12:33:44,295 INFO L175 Difference]: Start difference. First operand has 174 places, 170 transitions, 351 flow. Second operand 3 states and 482 transitions. [2024-11-12 12:33:44,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 168 transitions, 377 flow [2024-11-12 12:33:44,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 168 transitions, 373 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:33:44,301 INFO L231 Difference]: Finished difference. Result has 172 places, 168 transitions, 345 flow [2024-11-12 12:33:44,302 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=345, PETRI_PLACES=172, PETRI_TRANSITIONS=168} [2024-11-12 12:33:44,304 INFO L279 CegarLoopForPetriNet]: 175 programPoint places, -3 predicate places. [2024-11-12 12:33:44,305 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 168 transitions, 345 flow [2024-11-12 12:33:44,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.0) internal successors, (468), 3 states have internal predecessors, (468), 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) [2024-11-12 12:33:44,305 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:33:44,306 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:33:44,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 12:33:44,306 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-12 12:33:44,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:33:44,309 INFO L85 PathProgramCache]: Analyzing trace with hash -138604748, now seen corresponding path program 1 times [2024-11-12 12:33:44,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:33:44,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184339780] [2024-11-12 12:33:44,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:33:44,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:33:44,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:33:44,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:33:44,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:33:44,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184339780] [2024-11-12 12:33:44,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184339780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:33:44,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:33:44,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:33:44,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555083889] [2024-11-12 12:33:44,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:33:44,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:33:44,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:33:44,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:33:44,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:33:44,433 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 185 [2024-11-12 12:33:44,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 168 transitions, 345 flow. Second operand has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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) [2024-11-12 12:33:44,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:33:44,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 185 [2024-11-12 12:33:44,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:33:44,539 INFO L124 PetriNetUnfolderBase]: 25/431 cut-off events. [2024-11-12 12:33:44,540 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-12 12:33:44,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 508 conditions, 431 events. 25/431 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1623 event pairs, 24 based on Foata normal form. 0/388 useless extension candidates. Maximal degree in co-relation 470. Up to 68 conditions per place. [2024-11-12 12:33:44,542 INFO L140 encePairwiseOnDemand]: 182/185 looper letters, 16 selfloop transitions, 2 changer transitions 0/167 dead transitions. [2024-11-12 12:33:44,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 167 transitions, 379 flow [2024-11-12 12:33:44,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:33:44,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:33:44,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 478 transitions. [2024-11-12 12:33:44,545 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8612612612612612 [2024-11-12 12:33:44,545 INFO L175 Difference]: Start difference. First operand has 172 places, 168 transitions, 345 flow. Second operand 3 states and 478 transitions. [2024-11-12 12:33:44,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 167 transitions, 379 flow [2024-11-12 12:33:44,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 167 transitions, 378 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:33:44,551 INFO L231 Difference]: Finished difference. Result has 172 places, 167 transitions, 346 flow [2024-11-12 12:33:44,552 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=172, PETRI_TRANSITIONS=167} [2024-11-12 12:33:44,552 INFO L279 CegarLoopForPetriNet]: 175 programPoint places, -3 predicate places. [2024-11-12 12:33:44,553 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 167 transitions, 346 flow [2024-11-12 12:33:44,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.33333333333334) internal successors, (463), 3 states have internal predecessors, (463), 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) [2024-11-12 12:33:44,554 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:33:44,554 INFO L206 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] [2024-11-12 12:33:44,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 12:33:44,555 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-12 12:33:44,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:33:44,557 INFO L85 PathProgramCache]: Analyzing trace with hash 798048297, now seen corresponding path program 1 times [2024-11-12 12:33:44,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:33:44,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376037807] [2024-11-12 12:33:44,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:33:44,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:33:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:33:45,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:33:45,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:33:45,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376037807] [2024-11-12 12:33:45,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376037807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:33:45,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:33:45,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:33:45,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204256850] [2024-11-12 12:33:45,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:33:45,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:33:45,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:33:45,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:33:45,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:33:45,354 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 185 [2024-11-12 12:33:45,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 167 transitions, 346 flow. Second operand has 6 states, 6 states have (on average 125.5) internal successors, (753), 6 states have internal predecessors, (753), 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) [2024-11-12 12:33:45,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:33:45,356 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 185 [2024-11-12 12:33:45,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:33:45,785 INFO L124 PetriNetUnfolderBase]: 535/2115 cut-off events. [2024-11-12 12:33:45,785 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-12 12:33:45,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3285 conditions, 2115 events. 535/2115 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 14624 event pairs, 303 based on Foata normal form. 0/1940 useless extension candidates. Maximal degree in co-relation 3247. Up to 988 conditions per place. [2024-11-12 12:33:45,796 INFO L140 encePairwiseOnDemand]: 162/185 looper letters, 71 selfloop transitions, 70 changer transitions 0/260 dead transitions. [2024-11-12 12:33:45,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 260 transitions, 814 flow [2024-11-12 12:33:45,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:33:45,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:33:45,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 886 transitions. [2024-11-12 12:33:45,800 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7981981981981981 [2024-11-12 12:33:45,800 INFO L175 Difference]: Start difference. First operand has 172 places, 167 transitions, 346 flow. Second operand 6 states and 886 transitions. [2024-11-12 12:33:45,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 260 transitions, 814 flow [2024-11-12 12:33:45,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 260 transitions, 810 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:33:45,809 INFO L231 Difference]: Finished difference. Result has 180 places, 236 transitions, 804 flow [2024-11-12 12:33:45,810 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=804, PETRI_PLACES=180, PETRI_TRANSITIONS=236} [2024-11-12 12:33:45,811 INFO L279 CegarLoopForPetriNet]: 175 programPoint places, 5 predicate places. [2024-11-12 12:33:45,811 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 236 transitions, 804 flow [2024-11-12 12:33:45,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 125.5) internal successors, (753), 6 states have internal predecessors, (753), 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) [2024-11-12 12:33:45,812 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:33:45,812 INFO L206 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] [2024-11-12 12:33:45,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 12:33:45,813 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-12 12:33:45,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:33:45,816 INFO L85 PathProgramCache]: Analyzing trace with hash 329997752, now seen corresponding path program 1 times [2024-11-12 12:33:45,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:33:45,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961245928] [2024-11-12 12:33:45,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:33:45,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:33:45,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:33:45,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:33:45,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:33:45,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961245928] [2024-11-12 12:33:45,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961245928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:33:45,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:33:45,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:33:45,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916846298] [2024-11-12 12:33:45,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:33:45,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:33:45,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:33:45,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:33:45,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:33:45,891 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 185 [2024-11-12 12:33:45,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 236 transitions, 804 flow. Second operand has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 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) [2024-11-12 12:33:45,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:33:45,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 185 [2024-11-12 12:33:45,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:33:46,026 INFO L124 PetriNetUnfolderBase]: 176/1067 cut-off events. [2024-11-12 12:33:46,028 INFO L125 PetriNetUnfolderBase]: For 119/136 co-relation queries the response was YES. [2024-11-12 12:33:46,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1729 conditions, 1067 events. 176/1067 cut-off events. For 119/136 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6029 event pairs, 20 based on Foata normal form. 1/991 useless extension candidates. Maximal degree in co-relation 1687. Up to 191 conditions per place. [2024-11-12 12:33:46,034 INFO L140 encePairwiseOnDemand]: 182/185 looper letters, 20 selfloop transitions, 3 changer transitions 0/242 dead transitions. [2024-11-12 12:33:46,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 242 transitions, 862 flow [2024-11-12 12:33:46,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:33:46,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:33:46,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 491 transitions. [2024-11-12 12:33:46,036 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8846846846846846 [2024-11-12 12:33:46,037 INFO L175 Difference]: Start difference. First operand has 180 places, 236 transitions, 804 flow. Second operand 3 states and 491 transitions. [2024-11-12 12:33:46,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 242 transitions, 862 flow [2024-11-12 12:33:46,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 242 transitions, 862 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:33:46,046 INFO L231 Difference]: Finished difference. Result has 183 places, 236 transitions, 815 flow [2024-11-12 12:33:46,046 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=804, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=815, PETRI_PLACES=183, PETRI_TRANSITIONS=236} [2024-11-12 12:33:46,047 INFO L279 CegarLoopForPetriNet]: 175 programPoint places, 8 predicate places. [2024-11-12 12:33:46,047 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 236 transitions, 815 flow [2024-11-12 12:33:46,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 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) [2024-11-12 12:33:46,048 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:33:46,048 INFO L206 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] [2024-11-12 12:33:46,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 12:33:46,048 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-12 12:33:46,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:33:46,049 INFO L85 PathProgramCache]: Analyzing trace with hash -571676016, now seen corresponding path program 1 times [2024-11-12 12:33:46,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:33:46,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427386767] [2024-11-12 12:33:46,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:33:46,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:33:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:33:46,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:33:46,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:33:46,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427386767] [2024-11-12 12:33:46,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427386767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:33:46,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:33:46,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:33:46,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547441360] [2024-11-12 12:33:46,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:33:46,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:33:46,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:33:46,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:33:46,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:33:46,097 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 185 [2024-11-12 12:33:46,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 236 transitions, 815 flow. Second operand has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 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) [2024-11-12 12:33:46,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:33:46,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 185 [2024-11-12 12:33:46,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:33:46,228 INFO L124 PetriNetUnfolderBase]: 145/864 cut-off events. [2024-11-12 12:33:46,229 INFO L125 PetriNetUnfolderBase]: For 109/128 co-relation queries the response was YES. [2024-11-12 12:33:46,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1506 conditions, 864 events. 145/864 cut-off events. For 109/128 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4710 event pairs, 4 based on Foata normal form. 0/817 useless extension candidates. Maximal degree in co-relation 1463. Up to 221 conditions per place. [2024-11-12 12:33:46,234 INFO L140 encePairwiseOnDemand]: 182/185 looper letters, 16 selfloop transitions, 1 changer transitions 0/236 dead transitions. [2024-11-12 12:33:46,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 236 transitions, 849 flow [2024-11-12 12:33:46,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:33:46,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:33:46,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 484 transitions. [2024-11-12 12:33:46,235 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.872072072072072 [2024-11-12 12:33:46,236 INFO L175 Difference]: Start difference. First operand has 183 places, 236 transitions, 815 flow. Second operand 3 states and 484 transitions. [2024-11-12 12:33:46,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 236 transitions, 849 flow [2024-11-12 12:33:46,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 236 transitions, 843 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:33:46,242 INFO L231 Difference]: Finished difference. Result has 181 places, 234 transitions, 807 flow [2024-11-12 12:33:46,242 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=185, PETRI_DIFFERENCE_MINUEND_FLOW=805, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=807, PETRI_PLACES=181, PETRI_TRANSITIONS=234} [2024-11-12 12:33:46,243 INFO L279 CegarLoopForPetriNet]: 175 programPoint places, 6 predicate places. [2024-11-12 12:33:46,243 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 234 transitions, 807 flow [2024-11-12 12:33:46,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 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) [2024-11-12 12:33:46,244 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:33:46,244 INFO L206 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, 1, 1, 1] [2024-11-12 12:33:46,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 12:33:46,244 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-12 12:33:46,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:33:46,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1394837605, now seen corresponding path program 1 times [2024-11-12 12:33:46,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:33:46,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045812937] [2024-11-12 12:33:46,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:33:46,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:33:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:33:46,265 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:33:46,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:33:46,304 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:33:46,305 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:33:46,306 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-12 12:33:46,309 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-12 12:33:46,309 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-12 12:33:46,310 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-12 12:33:46,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-12 12:33:46,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-12 12:33:46,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2024-11-12 12:33:46,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-11-12 12:33:46,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-12 12:33:46,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-12 12:33:46,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-12 12:33:46,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-12 12:33:46,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-12 12:33:46,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-12 12:33:46,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-12 12:33:46,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-12 12:33:46,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-12 12:33:46,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-12 12:33:46,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-12 12:33:46,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-12 12:33:46,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 12:33:46,317 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:33:46,320 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:33:46,324 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-12 12:33:46,375 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-12 12:33:46,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 241 places, 256 transitions, 528 flow [2024-11-12 12:33:46,426 INFO L124 PetriNetUnfolderBase]: 34/410 cut-off events. [2024-11-12 12:33:46,427 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-12 12:33:46,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 410 events. 34/410 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1564 event pairs, 0 based on Foata normal form. 0/344 useless extension candidates. Maximal degree in co-relation 250. Up to 8 conditions per place. [2024-11-12 12:33:46,431 INFO L82 GeneralOperation]: Start removeDead. Operand has 241 places, 256 transitions, 528 flow [2024-11-12 12:33:46,435 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 241 places, 256 transitions, 528 flow [2024-11-12 12:33:46,437 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:33:46,438 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;@5040fb1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:33:46,438 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-12 12:33:46,441 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:33:46,441 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2024-11-12 12:33:46,441 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:33:46,442 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:33:46,442 INFO L206 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] [2024-11-12 12:33:46,442 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-12 12:33:46,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:33:46,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1225064853, now seen corresponding path program 1 times [2024-11-12 12:33:46,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:33:46,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644048242] [2024-11-12 12:33:46,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:33:46,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:33:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:33:46,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:33:46,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:33:46,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644048242] [2024-11-12 12:33:46,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644048242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:33:46,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:33:46,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:33:46,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635080546] [2024-11-12 12:33:46,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:33:46,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:33:46,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:33:46,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:33:46,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:33:46,485 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 256 [2024-11-12 12:33:46,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 256 transitions, 528 flow. Second operand has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 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) [2024-11-12 12:33:46,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:33:46,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 256 [2024-11-12 12:33:46,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:33:47,027 INFO L124 PetriNetUnfolderBase]: 430/3697 cut-off events. [2024-11-12 12:33:47,027 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-11-12 12:33:47,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4481 conditions, 3697 events. 430/3697 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 32095 event pairs, 420 based on Foata normal form. 578/3897 useless extension candidates. Maximal degree in co-relation 3717. Up to 739 conditions per place. [2024-11-12 12:33:47,056 INFO L140 encePairwiseOnDemand]: 235/256 looper letters, 24 selfloop transitions, 2 changer transitions 0/235 dead transitions. [2024-11-12 12:33:47,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 235 transitions, 538 flow [2024-11-12 12:33:47,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:33:47,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:33:47,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 675 transitions. [2024-11-12 12:33:47,059 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.87890625 [2024-11-12 12:33:47,059 INFO L175 Difference]: Start difference. First operand has 241 places, 256 transitions, 528 flow. Second operand 3 states and 675 transitions. [2024-11-12 12:33:47,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 235 transitions, 538 flow [2024-11-12 12:33:47,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 235 transitions, 538 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:33:47,150 INFO L231 Difference]: Finished difference. Result has 240 places, 235 transitions, 490 flow [2024-11-12 12:33:47,154 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=490, PETRI_PLACES=240, PETRI_TRANSITIONS=235} [2024-11-12 12:33:47,156 INFO L279 CegarLoopForPetriNet]: 241 programPoint places, -1 predicate places. [2024-11-12 12:33:47,156 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 235 transitions, 490 flow [2024-11-12 12:33:47,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 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) [2024-11-12 12:33:47,157 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:33:47,157 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:33:47,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 12:33:47,158 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-12 12:33:47,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:33:47,158 INFO L85 PathProgramCache]: Analyzing trace with hash 466307383, now seen corresponding path program 1 times [2024-11-12 12:33:47,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:33:47,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54443205] [2024-11-12 12:33:47,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:33:47,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:33:47,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:33:47,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:33:47,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:33:47,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54443205] [2024-11-12 12:33:47,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54443205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:33:47,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:33:47,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:33:47,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065467761] [2024-11-12 12:33:47,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:33:47,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:33:47,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:33:47,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:33:47,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:33:47,192 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 256 [2024-11-12 12:33:47,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 235 transitions, 490 flow. Second operand has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 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) [2024-11-12 12:33:47,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:33:47,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 256 [2024-11-12 12:33:47,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:33:47,698 INFO L124 PetriNetUnfolderBase]: 418/3631 cut-off events. [2024-11-12 12:33:47,699 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-11-12 12:33:47,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4396 conditions, 3631 events. 418/3631 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 31166 event pairs, 414 based on Foata normal form. 0/3274 useless extension candidates. Maximal degree in co-relation 4355. Up to 717 conditions per place. [2024-11-12 12:33:47,725 INFO L140 encePairwiseOnDemand]: 253/256 looper letters, 22 selfloop transitions, 1 changer transitions 0/233 dead transitions. [2024-11-12 12:33:47,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 233 transitions, 532 flow [2024-11-12 12:33:47,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:33:47,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:33:47,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 661 transitions. [2024-11-12 12:33:47,727 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8606770833333334 [2024-11-12 12:33:47,728 INFO L175 Difference]: Start difference. First operand has 240 places, 235 transitions, 490 flow. Second operand 3 states and 661 transitions. [2024-11-12 12:33:47,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 233 transitions, 532 flow [2024-11-12 12:33:47,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 233 transitions, 528 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:33:47,734 INFO L231 Difference]: Finished difference. Result has 238 places, 233 transitions, 484 flow [2024-11-12 12:33:47,734 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=484, PETRI_PLACES=238, PETRI_TRANSITIONS=233} [2024-11-12 12:33:47,736 INFO L279 CegarLoopForPetriNet]: 241 programPoint places, -3 predicate places. [2024-11-12 12:33:47,737 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 233 transitions, 484 flow [2024-11-12 12:33:47,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 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) [2024-11-12 12:33:47,738 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:33:47,738 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:33:47,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 12:33:47,738 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-12 12:33:47,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:33:47,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1196085300, now seen corresponding path program 1 times [2024-11-12 12:33:47,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:33:47,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41625599] [2024-11-12 12:33:47,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:33:47,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:33:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:33:47,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:33:47,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:33:47,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41625599] [2024-11-12 12:33:47,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41625599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:33:47,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:33:47,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:33:47,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025147626] [2024-11-12 12:33:47,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:33:47,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:33:47,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:33:47,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:33:47,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:33:47,793 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 256 [2024-11-12 12:33:47,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 233 transitions, 484 flow. Second operand has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 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) [2024-11-12 12:33:47,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:33:47,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 256 [2024-11-12 12:33:47,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:33:48,412 INFO L124 PetriNetUnfolderBase]: 564/3800 cut-off events. [2024-11-12 12:33:48,412 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-11-12 12:33:48,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4814 conditions, 3800 events. 564/3800 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 33926 event pairs, 552 based on Foata normal form. 0/3412 useless extension candidates. Maximal degree in co-relation 4775. Up to 957 conditions per place. [2024-11-12 12:33:48,444 INFO L140 encePairwiseOnDemand]: 253/256 looper letters, 26 selfloop transitions, 2 changer transitions 0/232 dead transitions. [2024-11-12 12:33:48,444 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 232 transitions, 538 flow [2024-11-12 12:33:48,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:33:48,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:33:48,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 653 transitions. [2024-11-12 12:33:48,447 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8502604166666666 [2024-11-12 12:33:48,447 INFO L175 Difference]: Start difference. First operand has 238 places, 233 transitions, 484 flow. Second operand 3 states and 653 transitions. [2024-11-12 12:33:48,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 232 transitions, 538 flow [2024-11-12 12:33:48,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 232 transitions, 537 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:33:48,452 INFO L231 Difference]: Finished difference. Result has 238 places, 232 transitions, 485 flow [2024-11-12 12:33:48,453 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=485, PETRI_PLACES=238, PETRI_TRANSITIONS=232} [2024-11-12 12:33:48,454 INFO L279 CegarLoopForPetriNet]: 241 programPoint places, -3 predicate places. [2024-11-12 12:33:48,454 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 232 transitions, 485 flow [2024-11-12 12:33:48,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 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) [2024-11-12 12:33:48,455 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:33:48,455 INFO L206 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] [2024-11-12 12:33:48,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 12:33:48,455 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-12 12:33:48,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:33:48,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1062347049, now seen corresponding path program 1 times [2024-11-12 12:33:48,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:33:48,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261016387] [2024-11-12 12:33:48,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:33:48,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:33:48,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:33:48,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:33:48,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:33:48,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261016387] [2024-11-12 12:33:48,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261016387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:33:48,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:33:48,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:33:48,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172672404] [2024-11-12 12:33:48,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:33:48,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:33:48,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:33:48,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:33:48,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:33:49,088 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 256 [2024-11-12 12:33:49,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 232 transitions, 485 flow. Second operand has 6 states, 6 states have (on average 166.5) internal successors, (999), 6 states have internal predecessors, (999), 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) [2024-11-12 12:33:49,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:33:49,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 256 [2024-11-12 12:33:49,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:33:56,475 INFO L124 PetriNetUnfolderBase]: 27083/64954 cut-off events. [2024-11-12 12:33:56,476 INFO L125 PetriNetUnfolderBase]: For 733/733 co-relation queries the response was YES. [2024-11-12 12:33:56,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107320 conditions, 64954 events. 27083/64954 cut-off events. For 733/733 co-relation queries the response was YES. Maximal size of possible extension queue 1100. Compared 726108 event pairs, 18139 based on Foata normal form. 0/60423 useless extension candidates. Maximal degree in co-relation 107281. Up to 37375 conditions per place. [2024-11-12 12:33:56,879 INFO L140 encePairwiseOnDemand]: 217/256 looper letters, 120 selfloop transitions, 134 changer transitions 0/414 dead transitions. [2024-11-12 12:33:56,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 414 transitions, 1362 flow [2024-11-12 12:33:56,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:33:56,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:33:56,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1245 transitions. [2024-11-12 12:33:56,884 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.810546875 [2024-11-12 12:33:56,884 INFO L175 Difference]: Start difference. First operand has 238 places, 232 transitions, 485 flow. Second operand 6 states and 1245 transitions. [2024-11-12 12:33:56,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 414 transitions, 1362 flow [2024-11-12 12:33:56,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 414 transitions, 1358 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:33:56,904 INFO L231 Difference]: Finished difference. Result has 246 places, 365 transitions, 1359 flow [2024-11-12 12:33:56,906 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1359, PETRI_PLACES=246, PETRI_TRANSITIONS=365} [2024-11-12 12:33:56,907 INFO L279 CegarLoopForPetriNet]: 241 programPoint places, 5 predicate places. [2024-11-12 12:33:56,907 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 365 transitions, 1359 flow [2024-11-12 12:33:56,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 166.5) internal successors, (999), 6 states have internal predecessors, (999), 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) [2024-11-12 12:33:56,908 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:33:56,908 INFO L206 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] [2024-11-12 12:33:56,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 12:33:56,908 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-12 12:33:56,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:33:56,909 INFO L85 PathProgramCache]: Analyzing trace with hash 918036152, now seen corresponding path program 1 times [2024-11-12 12:33:56,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:33:56,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121786904] [2024-11-12 12:33:56,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:33:56,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:33:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:33:56,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:33:56,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:33:56,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121786904] [2024-11-12 12:33:56,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121786904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:33:56,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:33:56,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:33:56,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769764406] [2024-11-12 12:33:56,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:33:56,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:33:56,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:33:56,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:33:56,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:33:56,984 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 256 [2024-11-12 12:33:56,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 365 transitions, 1359 flow. Second operand has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 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) [2024-11-12 12:33:56,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:33:56,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 256 [2024-11-12 12:33:56,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:00,695 INFO L124 PetriNetUnfolderBase]: 10377/34063 cut-off events. [2024-11-12 12:34:00,695 INFO L125 PetriNetUnfolderBase]: For 5308/5785 co-relation queries the response was YES. [2024-11-12 12:34:00,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60238 conditions, 34063 events. 10377/34063 cut-off events. For 5308/5785 co-relation queries the response was YES. Maximal size of possible extension queue 633. Compared 393695 event pairs, 4204 based on Foata normal form. 1/31230 useless extension candidates. Maximal degree in co-relation 60195. Up to 11276 conditions per place. [2024-11-12 12:34:00,926 INFO L140 encePairwiseOnDemand]: 253/256 looper letters, 30 selfloop transitions, 3 changer transitions 0/373 dead transitions. [2024-11-12 12:34:00,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 373 transitions, 1447 flow [2024-11-12 12:34:00,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:34:00,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:34:00,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 671 transitions. [2024-11-12 12:34:00,929 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8736979166666666 [2024-11-12 12:34:00,929 INFO L175 Difference]: Start difference. First operand has 246 places, 365 transitions, 1359 flow. Second operand 3 states and 671 transitions. [2024-11-12 12:34:00,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 373 transitions, 1447 flow [2024-11-12 12:34:01,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 373 transitions, 1447 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:34:01,070 INFO L231 Difference]: Finished difference. Result has 249 places, 367 transitions, 1384 flow [2024-11-12 12:34:01,070 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=1359, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1384, PETRI_PLACES=249, PETRI_TRANSITIONS=367} [2024-11-12 12:34:01,071 INFO L279 CegarLoopForPetriNet]: 241 programPoint places, 8 predicate places. [2024-11-12 12:34:01,071 INFO L471 AbstractCegarLoop]: Abstraction has has 249 places, 367 transitions, 1384 flow [2024-11-12 12:34:01,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 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) [2024-11-12 12:34:01,072 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:01,072 INFO L206 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] [2024-11-12 12:34:01,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 12:34:01,072 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-12 12:34:01,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:01,073 INFO L85 PathProgramCache]: Analyzing trace with hash -666200619, now seen corresponding path program 1 times [2024-11-12 12:34:01,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:01,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826515650] [2024-11-12 12:34:01,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:01,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:01,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:01,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:01,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826515650] [2024-11-12 12:34:01,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826515650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:01,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:34:01,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 12:34:01,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660271375] [2024-11-12 12:34:01,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:01,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:34:01,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:01,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:34:01,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:34:01,132 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 256 [2024-11-12 12:34:01,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 367 transitions, 1384 flow. Second operand has 3 states, 3 states have (on average 208.0) internal successors, (624), 3 states have internal predecessors, (624), 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) [2024-11-12 12:34:01,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:01,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 256 [2024-11-12 12:34:01,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:04,535 INFO L124 PetriNetUnfolderBase]: 9976/30271 cut-off events. [2024-11-12 12:34:04,535 INFO L125 PetriNetUnfolderBase]: For 5161/5599 co-relation queries the response was YES. [2024-11-12 12:34:04,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56400 conditions, 30271 events. 9976/30271 cut-off events. For 5161/5599 co-relation queries the response was YES. Maximal size of possible extension queue 585. Compared 336112 event pairs, 2877 based on Foata normal form. 0/28566 useless extension candidates. Maximal degree in co-relation 56356. Up to 10725 conditions per place. [2024-11-12 12:34:04,744 INFO L140 encePairwiseOnDemand]: 250/256 looper letters, 34 selfloop transitions, 2 changer transitions 0/372 dead transitions. [2024-11-12 12:34:04,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 372 transitions, 1471 flow [2024-11-12 12:34:04,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:34:04,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:34:04,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 658 transitions. [2024-11-12 12:34:04,747 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8567708333333334 [2024-11-12 12:34:04,747 INFO L175 Difference]: Start difference. First operand has 249 places, 367 transitions, 1384 flow. Second operand 3 states and 658 transitions. [2024-11-12 12:34:04,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 372 transitions, 1471 flow [2024-11-12 12:34:04,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 372 transitions, 1468 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:34:04,900 INFO L231 Difference]: Finished difference. Result has 247 places, 365 transitions, 1387 flow [2024-11-12 12:34:04,900 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=1373, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1387, PETRI_PLACES=247, PETRI_TRANSITIONS=365} [2024-11-12 12:34:04,901 INFO L279 CegarLoopForPetriNet]: 241 programPoint places, 6 predicate places. [2024-11-12 12:34:04,901 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 365 transitions, 1387 flow [2024-11-12 12:34:04,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.0) internal successors, (624), 3 states have internal predecessors, (624), 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) [2024-11-12 12:34:04,901 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:04,901 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:04,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-12 12:34:04,902 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-12 12:34:04,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:04,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1164571068, now seen corresponding path program 1 times [2024-11-12 12:34:04,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:04,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878301764] [2024-11-12 12:34:04,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:04,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:05,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:05,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:05,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878301764] [2024-11-12 12:34:05,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878301764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:05,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:34:05,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:34:05,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537230800] [2024-11-12 12:34:05,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:05,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:34:05,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:05,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:34:05,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:34:05,645 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 256 [2024-11-12 12:34:05,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 365 transitions, 1387 flow. Second operand has 6 states, 6 states have (on average 171.33333333333334) internal successors, (1028), 6 states have internal predecessors, (1028), 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) [2024-11-12 12:34:05,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:05,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 256 [2024-11-12 12:34:05,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:14,942 INFO L124 PetriNetUnfolderBase]: 35577/80673 cut-off events. [2024-11-12 12:34:14,942 INFO L125 PetriNetUnfolderBase]: For 33687/37279 co-relation queries the response was YES. [2024-11-12 12:34:15,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187284 conditions, 80673 events. 35577/80673 cut-off events. For 33687/37279 co-relation queries the response was YES. Maximal size of possible extension queue 1849. Compared 907583 event pairs, 7719 based on Foata normal form. 84/77047 useless extension candidates. Maximal degree in co-relation 187239. Up to 33919 conditions per place. [2024-11-12 12:34:15,517 INFO L140 encePairwiseOnDemand]: 208/256 looper letters, 463 selfloop transitions, 219 changer transitions 0/848 dead transitions. [2024-11-12 12:34:15,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 848 transitions, 4965 flow [2024-11-12 12:34:15,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:34:15,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:34:15,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1342 transitions. [2024-11-12 12:34:15,521 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8736979166666666 [2024-11-12 12:34:15,521 INFO L175 Difference]: Start difference. First operand has 247 places, 365 transitions, 1387 flow. Second operand 6 states and 1342 transitions. [2024-11-12 12:34:15,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 848 transitions, 4965 flow [2024-11-12 12:34:16,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 848 transitions, 4965 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:34:16,122 INFO L231 Difference]: Finished difference. Result has 257 places, 596 transitions, 3703 flow [2024-11-12 12:34:16,123 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=1387, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3703, PETRI_PLACES=257, PETRI_TRANSITIONS=596} [2024-11-12 12:34:16,123 INFO L279 CegarLoopForPetriNet]: 241 programPoint places, 16 predicate places. [2024-11-12 12:34:16,124 INFO L471 AbstractCegarLoop]: Abstraction has has 257 places, 596 transitions, 3703 flow [2024-11-12 12:34:16,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.33333333333334) internal successors, (1028), 6 states have internal predecessors, (1028), 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) [2024-11-12 12:34:16,124 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:16,125 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:16,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-12 12:34:16,125 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-12 12:34:16,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:16,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1173917037, now seen corresponding path program 1 times [2024-11-12 12:34:16,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:16,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814228003] [2024-11-12 12:34:16,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:16,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:16,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:16,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:16,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814228003] [2024-11-12 12:34:16,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814228003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:16,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:34:16,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:34:16,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221645225] [2024-11-12 12:34:16,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:16,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:34:16,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:16,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:34:16,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:34:16,267 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 256 [2024-11-12 12:34:16,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 596 transitions, 3703 flow. Second operand has 5 states, 5 states have (on average 212.8) internal successors, (1064), 5 states have internal predecessors, (1064), 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) [2024-11-12 12:34:16,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:16,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 256 [2024-11-12 12:34:16,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:34:25,459 INFO L124 PetriNetUnfolderBase]: 22220/70648 cut-off events. [2024-11-12 12:34:25,460 INFO L125 PetriNetUnfolderBase]: For 48734/52811 co-relation queries the response was YES. [2024-11-12 12:34:25,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167256 conditions, 70648 events. 22220/70648 cut-off events. For 48734/52811 co-relation queries the response was YES. Maximal size of possible extension queue 1317. Compared 894706 event pairs, 4497 based on Foata normal form. 355/67536 useless extension candidates. Maximal degree in co-relation 167206. Up to 21238 conditions per place. [2024-11-12 12:34:25,999 INFO L140 encePairwiseOnDemand]: 251/256 looper letters, 54 selfloop transitions, 7 changer transitions 0/628 dead transitions. [2024-11-12 12:34:25,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 628 transitions, 3889 flow [2024-11-12 12:34:26,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:34:26,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:34:26,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1326 transitions. [2024-11-12 12:34:26,002 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.86328125 [2024-11-12 12:34:26,002 INFO L175 Difference]: Start difference. First operand has 257 places, 596 transitions, 3703 flow. Second operand 6 states and 1326 transitions. [2024-11-12 12:34:26,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 628 transitions, 3889 flow [2024-11-12 12:34:26,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 628 transitions, 3871 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-12 12:34:26,736 INFO L231 Difference]: Finished difference. Result has 265 places, 598 transitions, 3717 flow [2024-11-12 12:34:26,736 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=256, PETRI_DIFFERENCE_MINUEND_FLOW=3685, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=596, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=589, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3717, PETRI_PLACES=265, PETRI_TRANSITIONS=598} [2024-11-12 12:34:26,737 INFO L279 CegarLoopForPetriNet]: 241 programPoint places, 24 predicate places. [2024-11-12 12:34:26,737 INFO L471 AbstractCegarLoop]: Abstraction has has 265 places, 598 transitions, 3717 flow [2024-11-12 12:34:26,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 212.8) internal successors, (1064), 5 states have internal predecessors, (1064), 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) [2024-11-12 12:34:26,738 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:34:26,738 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:34:26,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-12 12:34:26,738 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-12 12:34:26,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:34:26,739 INFO L85 PathProgramCache]: Analyzing trace with hash 966835269, now seen corresponding path program 1 times [2024-11-12 12:34:26,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:34:26,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198593751] [2024-11-12 12:34:26,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:34:26,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:34:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:34:27,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 12:34:27,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:34:27,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198593751] [2024-11-12 12:34:27,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198593751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:34:27,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:34:27,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:34:27,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955978537] [2024-11-12 12:34:27,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:34:27,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:34:27,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:34:27,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:34:27,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:34:27,280 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 256 [2024-11-12 12:34:27,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 598 transitions, 3717 flow. Second operand has 6 states, 6 states have (on average 165.33333333333334) internal successors, (992), 6 states have internal predecessors, (992), 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) [2024-11-12 12:34:27,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:34:27,281 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 256 [2024-11-12 12:34:27,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand