./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_12-ptr_racefree.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_12-ptr_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7cd6aaa75855c8ee03a174376352b142cf57dd56532b968b1b6c916585172927 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 12:32:51,764 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 12:32:51,849 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-12 12:32:51,856 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 12:32:51,859 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 12:32:51,888 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 12:32:51,889 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 12:32:51,889 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 12:32:51,891 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 12:32:51,893 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 12:32:51,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 12:32:51,894 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 12:32:51,894 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 12:32:51,896 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 12:32:51,897 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 12:32:51,897 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 12:32:51,897 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 12:32:51,898 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 12:32:51,901 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 12:32:51,901 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 12:32:51,902 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 12:32:51,902 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 12:32:51,902 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-12 12:32:51,903 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 12:32:51,903 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 12:32:51,903 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 12:32:51,903 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 12:32:51,904 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 12:32:51,904 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 12:32:51,904 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 12:32:51,905 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 12:32:51,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:32:51,905 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 12:32:51,905 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 12:32:51,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 12:32:51,906 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 12:32:51,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 12:32:51,906 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 12:32:51,907 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 12:32:51,907 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 12:32:51,907 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 12:32:51,915 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7cd6aaa75855c8ee03a174376352b142cf57dd56532b968b1b6c916585172927 [2024-11-12 12:32:52,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 12:32:52,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 12:32:52,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 12:32:52,222 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 12:32:52,223 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 12:32:52,224 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_12-ptr_racefree.i [2024-11-12 12:32:53,694 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 12:32:53,945 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 12:32:53,945 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_12-ptr_racefree.i [2024-11-12 12:32:53,963 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30b05a343/3282afd64412419dbc9dc19f9831ea3e/FLAG1bdb6edf0 [2024-11-12 12:32:54,265 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30b05a343/3282afd64412419dbc9dc19f9831ea3e [2024-11-12 12:32:54,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 12:32:54,268 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 12:32:54,275 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 12:32:54,275 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 12:32:54,280 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 12:32:54,281 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:32:54" (1/1) ... [2024-11-12 12:32:54,282 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32beaaa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:54, skipping insertion in model container [2024-11-12 12:32:54,282 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:32:54" (1/1) ... [2024-11-12 12:32:54,318 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 12:32:54,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:32:54,725 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 12:32:54,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 12:32:54,813 INFO L204 MainTranslator]: Completed translation [2024-11-12 12:32:54,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:54 WrapperNode [2024-11-12 12:32:54,814 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 12:32:54,815 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 12:32:54,815 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 12:32:54,816 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 12:32:54,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:54" (1/1) ... [2024-11-12 12:32:54,838 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:54" (1/1) ... [2024-11-12 12:32:54,880 INFO L138 Inliner]: procedures = 171, calls = 43, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 153 [2024-11-12 12:32:54,884 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 12:32:54,885 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 12:32:54,885 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 12:32:54,885 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 12:32:54,896 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:54" (1/1) ... [2024-11-12 12:32:54,896 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:54" (1/1) ... [2024-11-12 12:32:54,900 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:54" (1/1) ... [2024-11-12 12:32:54,901 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:54" (1/1) ... [2024-11-12 12:32:54,920 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:54" (1/1) ... [2024-11-12 12:32:54,925 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:54" (1/1) ... [2024-11-12 12:32:54,928 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:54" (1/1) ... [2024-11-12 12:32:54,930 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:54" (1/1) ... [2024-11-12 12:32:54,934 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 12:32:54,935 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 12:32:54,935 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 12:32:54,935 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 12:32:54,936 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:54" (1/1) ... [2024-11-12 12:32:54,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 12:32:54,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 12:32:54,970 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 12:32:54,973 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 12:32:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-12 12:32:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-12 12:32:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-12 12:32:55,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 12:32:55,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 12:32:55,022 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-12 12:32:55,022 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-12 12:32:55,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 12:32:55,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-12 12:32:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-12 12:32:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 12:32:55,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 12:32:55,026 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 12:32:55,155 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 12:32:55,157 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 12:32:55,519 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 12:32:55,519 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 12:32:55,577 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 12:32:55,578 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-12 12:32:55,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:32:55 BoogieIcfgContainer [2024-11-12 12:32:55,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 12:32:55,581 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 12:32:55,582 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 12:32:55,585 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 12:32:55,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:32:54" (1/3) ... [2024-11-12 12:32:55,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d30a5f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:32:55, skipping insertion in model container [2024-11-12 12:32:55,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:32:54" (2/3) ... [2024-11-12 12:32:55,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d30a5f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:32:55, skipping insertion in model container [2024-11-12 12:32:55,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:32:55" (3/3) ... [2024-11-12 12:32:55,589 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_12-ptr_racefree.i [2024-11-12 12:32:55,605 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 12:32:55,605 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-12 12:32:55,606 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 12:32:55,700 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-12 12:32:55,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 211 places, 221 transitions, 449 flow [2024-11-12 12:32:55,952 INFO L124 PetriNetUnfolderBase]: 19/285 cut-off events. [2024-11-12 12:32:55,953 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 12:32:55,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 285 events. 19/285 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 720 event pairs, 0 based on Foata normal form. 0/253 useless extension candidates. Maximal degree in co-relation 148. Up to 4 conditions per place. [2024-11-12 12:32:55,965 INFO L82 GeneralOperation]: Start removeDead. Operand has 211 places, 221 transitions, 449 flow [2024-11-12 12:32:55,971 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 211 places, 221 transitions, 449 flow [2024-11-12 12:32:55,984 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:32:55,991 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;@55d21638, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:32:55,992 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-12 12:32:56,010 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:32:56,010 INFO L124 PetriNetUnfolderBase]: 2/110 cut-off events. [2024-11-12 12:32:56,010 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:32:56,010 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:32:56,011 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:32:56,012 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-12 12:32:56,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:32:56,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1190862045, now seen corresponding path program 1 times [2024-11-12 12:32:56,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:32:56,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513354110] [2024-11-12 12:32:56,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:32:56,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:32:56,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:32:57,251 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 12:32:57,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:32:57,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513354110] [2024-11-12 12:32:57,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513354110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:32:57,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:32:57,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:32:57,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636986547] [2024-11-12 12:32:57,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:32:57,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:32:57,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:32:57,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:32:57,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:32:57,665 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 221 [2024-11-12 12:32:57,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 221 transitions, 449 flow. Second operand has 6 states, 6 states have (on average 159.5) internal successors, (957), 6 states have internal predecessors, (957), 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 12:32:57,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:32:57,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 221 [2024-11-12 12:32:57,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:32:58,291 INFO L124 PetriNetUnfolderBase]: 579/2204 cut-off events. [2024-11-12 12:32:58,291 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-12 12:32:58,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3462 conditions, 2204 events. 579/2204 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 14977 event pairs, 357 based on Foata normal form. 225/2274 useless extension candidates. Maximal degree in co-relation 3263. Up to 1080 conditions per place. [2024-11-12 12:32:58,368 INFO L140 encePairwiseOnDemand]: 186/221 looper letters, 73 selfloop transitions, 70 changer transitions 0/300 dead transitions. [2024-11-12 12:32:58,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 300 transitions, 893 flow [2024-11-12 12:32:58,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:32:58,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:32:58,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1128 transitions. [2024-11-12 12:32:58,391 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8506787330316742 [2024-11-12 12:32:58,393 INFO L175 Difference]: Start difference. First operand has 211 places, 221 transitions, 449 flow. Second operand 6 states and 1128 transitions. [2024-11-12 12:32:58,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 300 transitions, 893 flow [2024-11-12 12:32:58,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 300 transitions, 893 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:32:58,409 INFO L231 Difference]: Finished difference. Result has 219 places, 276 transitions, 883 flow [2024-11-12 12:32:58,412 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=421, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=883, PETRI_PLACES=219, PETRI_TRANSITIONS=276} [2024-11-12 12:32:58,416 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 8 predicate places. [2024-11-12 12:32:58,419 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 276 transitions, 883 flow [2024-11-12 12:32:58,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 159.5) internal successors, (957), 6 states have internal predecessors, (957), 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 12:32:58,420 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:32:58,420 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, 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 12:32:58,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 12:32:58,421 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-12 12:32:58,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:32:58,423 INFO L85 PathProgramCache]: Analyzing trace with hash -196153078, now seen corresponding path program 1 times [2024-11-12 12:32:58,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:32:58,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48711773] [2024-11-12 12:32:58,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:32:58,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:32:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:32:58,515 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 12:32:58,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:32:58,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48711773] [2024-11-12 12:32:58,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48711773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:32:58,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:32:58,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:32:58,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596143543] [2024-11-12 12:32:58,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:32:58,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:32:58,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:32:58,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:32:58,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:32:58,549 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 221 [2024-11-12 12:32:58,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 276 transitions, 883 flow. Second operand has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 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 12:32:58,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:32:58,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 221 [2024-11-12 12:32:58,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:32:58,738 INFO L124 PetriNetUnfolderBase]: 185/1196 cut-off events. [2024-11-12 12:32:58,738 INFO L125 PetriNetUnfolderBase]: For 118/132 co-relation queries the response was YES. [2024-11-12 12:32:58,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1903 conditions, 1196 events. 185/1196 cut-off events. For 118/132 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6937 event pairs, 35 based on Foata normal form. 1/1122 useless extension candidates. Maximal degree in co-relation 1745. Up to 223 conditions per place. [2024-11-12 12:32:58,749 INFO L140 encePairwiseOnDemand]: 218/221 looper letters, 22 selfloop transitions, 3 changer transitions 0/282 dead transitions. [2024-11-12 12:32:58,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 282 transitions, 945 flow [2024-11-12 12:32:58,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:32:58,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:32:58,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 595 transitions. [2024-11-12 12:32:58,752 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8974358974358975 [2024-11-12 12:32:58,752 INFO L175 Difference]: Start difference. First operand has 219 places, 276 transitions, 883 flow. Second operand 3 states and 595 transitions. [2024-11-12 12:32:58,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 282 transitions, 945 flow [2024-11-12 12:32:58,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 282 transitions, 945 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:32:58,762 INFO L231 Difference]: Finished difference. Result has 222 places, 276 transitions, 894 flow [2024-11-12 12:32:58,763 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=883, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=894, PETRI_PLACES=222, PETRI_TRANSITIONS=276} [2024-11-12 12:32:58,764 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 11 predicate places. [2024-11-12 12:32:58,764 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 276 transitions, 894 flow [2024-11-12 12:32:58,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 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 12:32:58,765 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:32:58,765 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:32:58,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 12:32:58,766 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-12 12:32:58,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:32:58,767 INFO L85 PathProgramCache]: Analyzing trace with hash 770082283, now seen corresponding path program 1 times [2024-11-12 12:32:58,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:32:58,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231787326] [2024-11-12 12:32:58,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:32:58,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:32:58,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:32:59,291 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 12:32:59,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:32:59,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231787326] [2024-11-12 12:32:59,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231787326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:32:59,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:32:59,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:32:59,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293265140] [2024-11-12 12:32:59,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:32:59,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:32:59,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:32:59,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:32:59,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:32:59,515 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 221 [2024-11-12 12:32:59,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 276 transitions, 894 flow. Second operand has 6 states, 6 states have (on average 171.16666666666666) internal successors, (1027), 6 states have internal predecessors, (1027), 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 12:32:59,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:32:59,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 221 [2024-11-12 12:32:59,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:32:59,826 INFO L124 PetriNetUnfolderBase]: 370/1611 cut-off events. [2024-11-12 12:32:59,826 INFO L125 PetriNetUnfolderBase]: For 462/474 co-relation queries the response was YES. [2024-11-12 12:32:59,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3296 conditions, 1611 events. 370/1611 cut-off events. For 462/474 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 10518 event pairs, 96 based on Foata normal form. 2/1559 useless extension candidates. Maximal degree in co-relation 3125. Up to 642 conditions per place. [2024-11-12 12:32:59,839 INFO L140 encePairwiseOnDemand]: 203/221 looper letters, 112 selfloop transitions, 53 changer transitions 0/335 dead transitions. [2024-11-12 12:32:59,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 335 transitions, 1466 flow [2024-11-12 12:32:59,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:32:59,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:32:59,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1097 transitions. [2024-11-12 12:32:59,843 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8273001508295625 [2024-11-12 12:32:59,843 INFO L175 Difference]: Start difference. First operand has 222 places, 276 transitions, 894 flow. Second operand 6 states and 1097 transitions. [2024-11-12 12:32:59,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 335 transitions, 1466 flow [2024-11-12 12:32:59,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 335 transitions, 1460 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 12:32:59,856 INFO L231 Difference]: Finished difference. Result has 230 places, 319 transitions, 1376 flow [2024-11-12 12:32:59,856 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=221, PETRI_DIFFERENCE_MINUEND_FLOW=888, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1376, PETRI_PLACES=230, PETRI_TRANSITIONS=319} [2024-11-12 12:32:59,858 INFO L279 CegarLoopForPetriNet]: 211 programPoint places, 19 predicate places. [2024-11-12 12:32:59,858 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 319 transitions, 1376 flow [2024-11-12 12:32:59,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.16666666666666) internal successors, (1027), 6 states have internal predecessors, (1027), 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 12:32:59,859 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:32:59,860 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:32:59,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 12:32:59,860 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-12 12:32:59,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:32:59,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1722305356, now seen corresponding path program 1 times [2024-11-12 12:32:59,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:32:59,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139289645] [2024-11-12 12:32:59,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:32:59,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:32:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:32:59,903 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 12:32:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 12:32:59,984 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 12:32:59,985 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 12:32:59,986 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-12 12:32:59,988 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-12 12:32:59,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-12 12:32:59,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-12 12:32:59,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-12 12:32:59,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-12 12:32:59,991 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-11-12 12:32:59,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-12 12:32:59,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-12 12:32:59,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-12 12:32:59,992 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-12 12:32:59,993 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-12 12:32:59,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 12:32:59,994 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-12 12:32:59,997 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 12:32:59,999 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-12 12:33:00,058 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-12 12:33:00,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 272 places, 287 transitions, 590 flow [2024-11-12 12:33:00,119 INFO L124 PetriNetUnfolderBase]: 34/443 cut-off events. [2024-11-12 12:33:00,120 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-12 12:33:00,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 443 events. 34/443 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1466 event pairs, 0 based on Foata normal form. 0/387 useless extension candidates. Maximal degree in co-relation 287. Up to 8 conditions per place. [2024-11-12 12:33:00,123 INFO L82 GeneralOperation]: Start removeDead. Operand has 272 places, 287 transitions, 590 flow [2024-11-12 12:33:00,129 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 272 places, 287 transitions, 590 flow [2024-11-12 12:33:00,131 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 12:33:00,133 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;@55d21638, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 12:33:00,133 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-12 12:33:00,141 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 12:33:00,142 INFO L124 PetriNetUnfolderBase]: 2/110 cut-off events. [2024-11-12 12:33:00,142 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 12:33:00,142 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:33:00,143 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 12:33:00,143 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-12 12:33:00,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:33:00,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1785199357, now seen corresponding path program 1 times [2024-11-12 12:33:00,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:33:00,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344062021] [2024-11-12 12:33:00,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:33:00,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:33:00,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:33:00,599 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 12:33:00,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:33:00,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344062021] [2024-11-12 12:33:00,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344062021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:33:00,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:33:00,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:33:00,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604226760] [2024-11-12 12:33:00,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:33:00,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:33:00,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:33:00,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:33:00,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:33:00,859 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 287 [2024-11-12 12:33:00,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 287 transitions, 590 flow. Second operand has 6 states, 6 states have (on average 195.5) internal successors, (1173), 6 states have internal predecessors, (1173), 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 12:33:00,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:33:00,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 287 [2024-11-12 12:33:00,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:33:10,365 INFO L124 PetriNetUnfolderBase]: 29150/68169 cut-off events. [2024-11-12 12:33:10,365 INFO L125 PetriNetUnfolderBase]: For 756/756 co-relation queries the response was YES. [2024-11-12 12:33:10,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113703 conditions, 68169 events. 29150/68169 cut-off events. For 756/756 co-relation queries the response was YES. Maximal size of possible extension queue 1190. Compared 757617 event pairs, 19147 based on Foata normal form. 8132/72324 useless extension candidates. Maximal degree in co-relation 99472. Up to 40547 conditions per place. [2024-11-12 12:33:10,791 INFO L140 encePairwiseOnDemand]: 230/287 looper letters, 122 selfloop transitions, 134 changer transitions 0/449 dead transitions. [2024-11-12 12:33:10,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 449 transitions, 1431 flow [2024-11-12 12:33:10,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:33:10,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:33:10,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1487 transitions. [2024-11-12 12:33:10,797 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8635307781649245 [2024-11-12 12:33:10,797 INFO L175 Difference]: Start difference. First operand has 272 places, 287 transitions, 590 flow. Second operand 6 states and 1487 transitions. [2024-11-12 12:33:10,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 449 transitions, 1431 flow [2024-11-12 12:33:10,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 449 transitions, 1431 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:33:10,834 INFO L231 Difference]: Finished difference. Result has 280 places, 400 transitions, 1428 flow [2024-11-12 12:33:10,835 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1428, PETRI_PLACES=280, PETRI_TRANSITIONS=400} [2024-11-12 12:33:10,836 INFO L279 CegarLoopForPetriNet]: 272 programPoint places, 8 predicate places. [2024-11-12 12:33:10,836 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 400 transitions, 1428 flow [2024-11-12 12:33:10,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 195.5) internal successors, (1173), 6 states have internal predecessors, (1173), 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 12:33:10,837 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:33:10,838 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, 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 12:33:10,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 12:33:10,838 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-12 12:33:10,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:33:10,840 INFO L85 PathProgramCache]: Analyzing trace with hash -268637430, now seen corresponding path program 1 times [2024-11-12 12:33:10,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:33:10,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781794478] [2024-11-12 12:33:10,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:33:10,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:33:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:33:10,906 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 12:33:10,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:33:10,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781794478] [2024-11-12 12:33:10,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781794478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:33:10,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:33:10,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 12:33:10,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011725930] [2024-11-12 12:33:10,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:33:10,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 12:33:10,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:33:10,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 12:33:10,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 12:33:10,937 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 287 [2024-11-12 12:33:10,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 400 transitions, 1428 flow. Second operand has 3 states, 3 states have (on average 244.0) internal successors, (732), 3 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:33:10,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:33:10,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 287 [2024-11-12 12:33:10,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:33:14,686 INFO L124 PetriNetUnfolderBase]: 9617/30373 cut-off events. [2024-11-12 12:33:14,686 INFO L125 PetriNetUnfolderBase]: For 5314/5716 co-relation queries the response was YES. [2024-11-12 12:33:14,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54618 conditions, 30373 events. 9617/30373 cut-off events. For 5314/5716 co-relation queries the response was YES. Maximal size of possible extension queue 574. Compared 342076 event pairs, 3405 based on Foata normal form. 1/27872 useless extension candidates. Maximal degree in co-relation 28177. Up to 8560 conditions per place. [2024-11-12 12:33:14,931 INFO L140 encePairwiseOnDemand]: 284/287 looper letters, 32 selfloop transitions, 3 changer transitions 0/408 dead transitions. [2024-11-12 12:33:14,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 408 transitions, 1520 flow [2024-11-12 12:33:14,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 12:33:14,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 12:33:14,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 760 transitions. [2024-11-12 12:33:14,934 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8826945412311266 [2024-11-12 12:33:14,934 INFO L175 Difference]: Start difference. First operand has 280 places, 400 transitions, 1428 flow. Second operand 3 states and 760 transitions. [2024-11-12 12:33:14,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 408 transitions, 1520 flow [2024-11-12 12:33:15,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 408 transitions, 1520 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 12:33:15,082 INFO L231 Difference]: Finished difference. Result has 283 places, 402 transitions, 1453 flow [2024-11-12 12:33:15,082 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=1428, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1453, PETRI_PLACES=283, PETRI_TRANSITIONS=402} [2024-11-12 12:33:15,085 INFO L279 CegarLoopForPetriNet]: 272 programPoint places, 11 predicate places. [2024-11-12 12:33:15,085 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 402 transitions, 1453 flow [2024-11-12 12:33:15,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 244.0) internal successors, (732), 3 states have internal predecessors, (732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 12:33:15,086 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:33:15,086 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:33:15,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 12:33:15,087 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-12 12:33:15,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:33:15,088 INFO L85 PathProgramCache]: Analyzing trace with hash -619006229, now seen corresponding path program 1 times [2024-11-12 12:33:15,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:33:15,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318959127] [2024-11-12 12:33:15,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:33:15,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:33:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:33:15,747 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 12:33:15,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:33:15,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318959127] [2024-11-12 12:33:15,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318959127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:33:15,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:33:15,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:33:15,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367641666] [2024-11-12 12:33:15,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:33:15,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:33:15,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:33:15,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:33:15,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:33:16,145 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 287 [2024-11-12 12:33:16,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 402 transitions, 1453 flow. Second operand has 6 states, 6 states have (on average 215.16666666666666) internal successors, (1291), 6 states have internal predecessors, (1291), 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 12:33:16,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:33:16,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 287 [2024-11-12 12:33:16,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:33:23,341 INFO L124 PetriNetUnfolderBase]: 22789/55945 cut-off events. [2024-11-12 12:33:23,341 INFO L125 PetriNetUnfolderBase]: For 20607/22116 co-relation queries the response was YES. [2024-11-12 12:33:23,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123377 conditions, 55945 events. 22789/55945 cut-off events. For 20607/22116 co-relation queries the response was YES. Maximal size of possible extension queue 1101. Compared 624226 event pairs, 7775 based on Foata normal form. 55/52787 useless extension candidates. Maximal degree in co-relation 123155. Up to 26561 conditions per place. [2024-11-12 12:33:23,816 INFO L140 encePairwiseOnDemand]: 261/287 looper letters, 192 selfloop transitions, 141 changer transitions 0/581 dead transitions. [2024-11-12 12:33:23,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 581 transitions, 2921 flow [2024-11-12 12:33:23,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:33:23,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:33:23,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1441 transitions. [2024-11-12 12:33:23,824 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8368176538908246 [2024-11-12 12:33:23,824 INFO L175 Difference]: Start difference. First operand has 283 places, 402 transitions, 1453 flow. Second operand 6 states and 1441 transitions. [2024-11-12 12:33:23,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 581 transitions, 2921 flow [2024-11-12 12:33:24,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 581 transitions, 2918 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 12:33:24,262 INFO L231 Difference]: Finished difference. Result has 292 places, 533 transitions, 2834 flow [2024-11-12 12:33:24,262 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=1450, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2834, PETRI_PLACES=292, PETRI_TRANSITIONS=533} [2024-11-12 12:33:24,263 INFO L279 CegarLoopForPetriNet]: 272 programPoint places, 20 predicate places. [2024-11-12 12:33:24,263 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 533 transitions, 2834 flow [2024-11-12 12:33:24,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 215.16666666666666) internal successors, (1291), 6 states have internal predecessors, (1291), 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 12:33:24,264 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:33:24,264 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:33:24,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 12:33:24,264 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-12 12:33:24,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:33:24,265 INFO L85 PathProgramCache]: Analyzing trace with hash 519339482, now seen corresponding path program 1 times [2024-11-12 12:33:24,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:33:24,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233213498] [2024-11-12 12:33:24,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:33:24,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:33:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:33:24,350 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 12:33:24,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:33:24,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233213498] [2024-11-12 12:33:24,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233213498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:33:24,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:33:24,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:33:24,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960225519] [2024-11-12 12:33:24,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:33:24,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 12:33:24,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:33:24,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 12:33:24,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 12:33:24,393 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 287 [2024-11-12 12:33:24,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 533 transitions, 2834 flow. Second operand has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 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 12:33:24,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:33:24,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 287 [2024-11-12 12:33:24,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:33:29,830 INFO L124 PetriNetUnfolderBase]: 13112/41236 cut-off events. [2024-11-12 12:33:29,830 INFO L125 PetriNetUnfolderBase]: For 19974/21271 co-relation queries the response was YES. [2024-11-12 12:33:29,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88592 conditions, 41236 events. 13112/41236 cut-off events. For 19974/21271 co-relation queries the response was YES. Maximal size of possible extension queue 766. Compared 485806 event pairs, 3251 based on Foata normal form. 72/38188 useless extension candidates. Maximal degree in co-relation 44089. Up to 12453 conditions per place. [2024-11-12 12:33:30,162 INFO L140 encePairwiseOnDemand]: 282/287 looper letters, 56 selfloop transitions, 7 changer transitions 0/565 dead transitions. [2024-11-12 12:33:30,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 565 transitions, 3024 flow [2024-11-12 12:33:30,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:33:30,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:33:30,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1502 transitions. [2024-11-12 12:33:30,165 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8722415795586528 [2024-11-12 12:33:30,165 INFO L175 Difference]: Start difference. First operand has 292 places, 533 transitions, 2834 flow. Second operand 6 states and 1502 transitions. [2024-11-12 12:33:30,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 565 transitions, 3024 flow [2024-11-12 12:33:30,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 565 transitions, 3006 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-12 12:33:30,385 INFO L231 Difference]: Finished difference. Result has 300 places, 535 transitions, 2848 flow [2024-11-12 12:33:30,386 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=287, PETRI_DIFFERENCE_MINUEND_FLOW=2816, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=533, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=526, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2848, PETRI_PLACES=300, PETRI_TRANSITIONS=535} [2024-11-12 12:33:30,390 INFO L279 CegarLoopForPetriNet]: 272 programPoint places, 28 predicate places. [2024-11-12 12:33:30,390 INFO L471 AbstractCegarLoop]: Abstraction has has 300 places, 535 transitions, 2848 flow [2024-11-12 12:33:30,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 242.0) internal successors, (1210), 5 states have internal predecessors, (1210), 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 12:33:30,391 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 12:33:30,391 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:33:30,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 12:33:30,392 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-12 12:33:30,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 12:33:30,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1496893580, now seen corresponding path program 1 times [2024-11-12 12:33:30,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 12:33:30,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246607849] [2024-11-12 12:33:30,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 12:33:30,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 12:33:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 12:33:31,026 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 12:33:31,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 12:33:31,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246607849] [2024-11-12 12:33:31,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246607849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 12:33:31,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 12:33:31,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-12 12:33:31,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631645124] [2024-11-12 12:33:31,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 12:33:31,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 12:33:31,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 12:33:31,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 12:33:31,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-12 12:33:31,222 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 287 [2024-11-12 12:33:31,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 535 transitions, 2848 flow. Second operand has 6 states, 6 states have (on average 199.16666666666666) internal successors, (1195), 6 states have internal predecessors, (1195), 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 12:33:31,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 12:33:31,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 287 [2024-11-12 12:33:31,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 12:33:45,606 INFO L124 PetriNetUnfolderBase]: 46552/104143 cut-off events. [2024-11-12 12:33:45,606 INFO L125 PetriNetUnfolderBase]: For 72995/78887 co-relation queries the response was YES. [2024-11-12 12:33:46,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265818 conditions, 104143 events. 46552/104143 cut-off events. For 72995/78887 co-relation queries the response was YES. Maximal size of possible extension queue 1680. Compared 1181914 event pairs, 22290 based on Foata normal form. 78/98342 useless extension candidates. Maximal degree in co-relation 238171. Up to 65739 conditions per place. [2024-11-12 12:33:46,408 INFO L140 encePairwiseOnDemand]: 252/287 looper letters, 372 selfloop transitions, 245 changer transitions 0/818 dead transitions. [2024-11-12 12:33:46,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 818 transitions, 5540 flow [2024-11-12 12:33:46,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 12:33:46,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 12:33:46,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1414 transitions. [2024-11-12 12:33:46,411 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8211382113821138 [2024-11-12 12:33:46,411 INFO L175 Difference]: Start difference. First operand has 300 places, 535 transitions, 2848 flow. Second operand 6 states and 1414 transitions. [2024-11-12 12:33:46,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 818 transitions, 5540 flow