./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_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 844ba080c7d33529db727776ee230d62edb7b62a6350a8061572438c458d73d3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:53:55,060 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:53:55,130 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:53:55,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:53:55,135 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:53:55,161 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:53:55,162 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:53:55,162 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:53:55,163 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:53:55,164 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:53:55,165 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:53:55,166 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:53:55,166 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:53:55,167 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:53:55,167 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:53:55,167 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:53:55,168 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:53:55,172 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:53:55,172 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:53:55,172 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:53:55,173 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:53:55,173 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:53:55,173 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:53:55,174 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:53:55,174 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:53:55,174 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:53:55,174 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:53:55,175 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:53:55,175 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:53:55,175 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:53:55,176 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:53:55,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:53:55,176 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:53:55,176 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:53:55,176 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:53:55,177 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:53:55,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:53:55,178 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:53:55,179 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:53:55,179 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:53:55,179 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:53:55,180 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 844ba080c7d33529db727776ee230d62edb7b62a6350a8061572438c458d73d3 [2024-11-19 05:53:55,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:53:55,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:53:55,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:53:55,470 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:53:55,471 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:53:55,472 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i [2024-11-19 05:53:56,991 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:53:57,249 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:53:57,250 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_42-trylock2_racefree.i [2024-11-19 05:53:57,264 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4510372f/373ba0e63fd94ec8a98dd6a6d91ba3ef/FLAGf57cad304 [2024-11-19 05:53:57,277 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4510372f/373ba0e63fd94ec8a98dd6a6d91ba3ef [2024-11-19 05:53:57,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:53:57,281 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:53:57,282 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:53:57,282 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:53:57,289 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:53:57,289 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:53:57" (1/1) ... [2024-11-19 05:53:57,290 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e04af0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:57, skipping insertion in model container [2024-11-19 05:53:57,290 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:53:57" (1/1) ... [2024-11-19 05:53:57,340 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:53:57,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:53:57,749 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:53:57,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:53:57,875 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:53:57,876 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:57 WrapperNode [2024-11-19 05:53:57,876 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:53:57,877 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:53:57,877 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:53:57,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:53:57,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:57" (1/1) ... [2024-11-19 05:53:57,905 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:57" (1/1) ... [2024-11-19 05:53:57,943 INFO L138 Inliner]: procedures = 172, calls = 61, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 176 [2024-11-19 05:53:57,946 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:53:57,947 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:53:57,948 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:53:57,948 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:53:57,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:57" (1/1) ... [2024-11-19 05:53:57,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:57" (1/1) ... [2024-11-19 05:53:57,964 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:57" (1/1) ... [2024-11-19 05:53:57,964 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:57" (1/1) ... [2024-11-19 05:53:57,977 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:57" (1/1) ... [2024-11-19 05:53:57,985 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:57" (1/1) ... [2024-11-19 05:53:57,991 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:57" (1/1) ... [2024-11-19 05:53:57,997 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:57" (1/1) ... [2024-11-19 05:53:58,003 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:53:58,008 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:53:58,008 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:53:58,008 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:53:58,009 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:57" (1/1) ... [2024-11-19 05:53:58,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:53:58,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:53:58,046 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 05:53:58,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 05:53:58,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 05:53:58,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 05:53:58,101 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 05:53:58,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:53:58,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 05:53:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 05:53:58,102 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 05:53:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 05:53:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2024-11-19 05:53:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 05:53:58,102 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 05:53:58,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:53:58,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:53:58,104 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:53:58,236 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:53:58,239 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:53:58,680 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:53:58,681 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:53:58,746 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:53:58,747 INFO L316 CfgBuilder]: Removed 23 assume(true) statements. [2024-11-19 05:53:58,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:53:58 BoogieIcfgContainer [2024-11-19 05:53:58,747 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:53:58,753 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:53:58,753 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:53:58,758 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:53:58,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:53:57" (1/3) ... [2024-11-19 05:53:58,759 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7da5e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:53:58, skipping insertion in model container [2024-11-19 05:53:58,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:53:57" (2/3) ... [2024-11-19 05:53:58,759 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7da5e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:53:58, skipping insertion in model container [2024-11-19 05:53:58,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:53:58" (3/3) ... [2024-11-19 05:53:58,761 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_42-trylock2_racefree.i [2024-11-19 05:53:58,777 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:53:58,777 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-19 05:53:58,778 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:53:58,867 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-19 05:53:58,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 243 places, 273 transitions, 553 flow [2024-11-19 05:53:59,064 INFO L124 PetriNetUnfolderBase]: 53/413 cut-off events. [2024-11-19 05:53:59,065 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:53:59,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 413 events. 53/413 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1929 event pairs, 0 based on Foata normal form. 0/337 useless extension candidates. Maximal degree in co-relation 234. Up to 6 conditions per place. [2024-11-19 05:53:59,077 INFO L82 GeneralOperation]: Start removeDead. Operand has 243 places, 273 transitions, 553 flow [2024-11-19 05:53:59,089 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 243 places, 273 transitions, 553 flow [2024-11-19 05:53:59,103 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:53:59,110 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;@4709a8fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:53:59,111 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-19 05:53:59,125 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:53:59,126 INFO L124 PetriNetUnfolderBase]: 2/61 cut-off events. [2024-11-19 05:53:59,126 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:53:59,127 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:53:59,128 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:53:59,128 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-19 05:53:59,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:53:59,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1396948042, now seen corresponding path program 1 times [2024-11-19 05:53:59,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:53:59,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20183290] [2024-11-19 05:53:59,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:53:59,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:53:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:53:59,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:53:59,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:53:59,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20183290] [2024-11-19 05:53:59,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20183290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:53:59,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:53:59,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:53:59,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121458211] [2024-11-19 05:53:59,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:53:59,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:53:59,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:53:59,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:53:59,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:53:59,571 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 273 [2024-11-19 05:53:59,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 273 transitions, 553 flow. Second operand has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:53:59,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:53:59,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 273 [2024-11-19 05:53:59,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:53:59,997 INFO L124 PetriNetUnfolderBase]: 229/1869 cut-off events. [2024-11-19 05:53:59,998 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 05:54:00,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2342 conditions, 1869 events. 229/1869 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 12907 event pairs, 0 based on Foata normal form. 323/2009 useless extension candidates. Maximal degree in co-relation 2253. Up to 454 conditions per place. [2024-11-19 05:54:00,019 INFO L140 encePairwiseOnDemand]: 239/273 looper letters, 44 selfloop transitions, 2 changer transitions 0/246 dead transitions. [2024-11-19 05:54:00,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 246 transitions, 591 flow [2024-11-19 05:54:00,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:00,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:00,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 703 transitions. [2024-11-19 05:54:00,041 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8583638583638583 [2024-11-19 05:54:00,043 INFO L175 Difference]: Start difference. First operand has 243 places, 273 transitions, 553 flow. Second operand 3 states and 703 transitions. [2024-11-19 05:54:00,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 246 transitions, 591 flow [2024-11-19 05:54:00,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 246 transitions, 591 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:54:00,058 INFO L231 Difference]: Finished difference. Result has 238 places, 234 transitions, 483 flow [2024-11-19 05:54:00,061 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=483, PETRI_PLACES=238, PETRI_TRANSITIONS=234} [2024-11-19 05:54:00,068 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -5 predicate places. [2024-11-19 05:54:00,068 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 234 transitions, 483 flow [2024-11-19 05:54:00,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:00,069 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:00,069 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:00,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:54:00,070 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-19 05:54:00,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:00,070 INFO L85 PathProgramCache]: Analyzing trace with hash 853146814, now seen corresponding path program 1 times [2024-11-19 05:54:00,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:00,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470366629] [2024-11-19 05:54:00,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:00,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:00,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:00,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:00,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470366629] [2024-11-19 05:54:00,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470366629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:00,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:00,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:54:00,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888508017] [2024-11-19 05:54:00,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:00,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:54:00,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:00,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:54:00,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:54:00,816 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 273 [2024-11-19 05:54:00,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 234 transitions, 483 flow. Second operand has 6 states, 6 states have (on average 193.5) internal successors, (1161), 6 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:00,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:00,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 273 [2024-11-19 05:54:00,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:01,329 INFO L124 PetriNetUnfolderBase]: 349/2118 cut-off events. [2024-11-19 05:54:01,329 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-19 05:54:01,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2895 conditions, 2118 events. 349/2118 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 15403 event pairs, 13 based on Foata normal form. 0/1931 useless extension candidates. Maximal degree in co-relation 2801. Up to 587 conditions per place. [2024-11-19 05:54:01,342 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 88 selfloop transitions, 5 changer transitions 0/281 dead transitions. [2024-11-19 05:54:01,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 281 transitions, 763 flow [2024-11-19 05:54:01,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:54:01,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:54:01,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1246 transitions. [2024-11-19 05:54:01,347 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7606837606837606 [2024-11-19 05:54:01,347 INFO L175 Difference]: Start difference. First operand has 238 places, 234 transitions, 483 flow. Second operand 6 states and 1246 transitions. [2024-11-19 05:54:01,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 281 transitions, 763 flow [2024-11-19 05:54:01,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 281 transitions, 759 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:54:01,354 INFO L231 Difference]: Finished difference. Result has 240 places, 233 transitions, 487 flow [2024-11-19 05:54:01,355 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=487, PETRI_PLACES=240, PETRI_TRANSITIONS=233} [2024-11-19 05:54:01,355 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -3 predicate places. [2024-11-19 05:54:01,356 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 233 transitions, 487 flow [2024-11-19 05:54:01,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 193.5) internal successors, (1161), 6 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:01,357 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:01,357 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:01,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 05:54:01,357 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-19 05:54:01,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:01,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1690112521, now seen corresponding path program 1 times [2024-11-19 05:54:01,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:01,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950894235] [2024-11-19 05:54:01,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:01,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:01,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:01,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:01,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950894235] [2024-11-19 05:54:01,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950894235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:01,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:01,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:54:01,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438531268] [2024-11-19 05:54:01,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:01,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:01,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:01,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:01,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:01,443 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 273 [2024-11-19 05:54:01,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 233 transitions, 487 flow. Second operand has 3 states, 3 states have (on average 194.66666666666666) internal successors, (584), 3 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:01,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:01,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 273 [2024-11-19 05:54:01,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:02,081 INFO L124 PetriNetUnfolderBase]: 596/3781 cut-off events. [2024-11-19 05:54:02,082 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-19 05:54:02,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5039 conditions, 3781 events. 596/3781 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 32077 event pairs, 110 based on Foata normal form. 0/3422 useless extension candidates. Maximal degree in co-relation 4969. Up to 735 conditions per place. [2024-11-19 05:54:02,107 INFO L140 encePairwiseOnDemand]: 258/273 looper letters, 68 selfloop transitions, 10 changer transitions 0/266 dead transitions. [2024-11-19 05:54:02,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 266 transitions, 712 flow [2024-11-19 05:54:02,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:02,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:02,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 662 transitions. [2024-11-19 05:54:02,110 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8083028083028083 [2024-11-19 05:54:02,111 INFO L175 Difference]: Start difference. First operand has 240 places, 233 transitions, 487 flow. Second operand 3 states and 662 transitions. [2024-11-19 05:54:02,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 266 transitions, 712 flow [2024-11-19 05:54:02,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 266 transitions, 702 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 05:54:02,117 INFO L231 Difference]: Finished difference. Result has 237 places, 239 transitions, 551 flow [2024-11-19 05:54:02,117 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=551, PETRI_PLACES=237, PETRI_TRANSITIONS=239} [2024-11-19 05:54:02,118 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -6 predicate places. [2024-11-19 05:54:02,118 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 239 transitions, 551 flow [2024-11-19 05:54:02,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 194.66666666666666) internal successors, (584), 3 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:02,119 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:02,119 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:02,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 05:54:02,120 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-19 05:54:02,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:02,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1606535005, now seen corresponding path program 1 times [2024-11-19 05:54:02,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:02,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347025503] [2024-11-19 05:54:02,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:02,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:02,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:02,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:02,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347025503] [2024-11-19 05:54:02,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347025503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:02,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:02,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:54:02,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560508856] [2024-11-19 05:54:02,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:02,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:02,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:02,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:02,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:02,199 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 273 [2024-11-19 05:54:02,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 239 transitions, 551 flow. Second operand has 3 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:02,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:02,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 273 [2024-11-19 05:54:02,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:02,679 INFO L124 PetriNetUnfolderBase]: 592/3799 cut-off events. [2024-11-19 05:54:02,679 INFO L125 PetriNetUnfolderBase]: For 412/416 co-relation queries the response was YES. [2024-11-19 05:54:02,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5431 conditions, 3799 events. 592/3799 cut-off events. For 412/416 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 32118 event pairs, 409 based on Foata normal form. 4/3437 useless extension candidates. Maximal degree in co-relation 5361. Up to 1109 conditions per place. [2024-11-19 05:54:02,702 INFO L140 encePairwiseOnDemand]: 266/273 looper letters, 57 selfloop transitions, 8 changer transitions 0/260 dead transitions. [2024-11-19 05:54:02,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 260 transitions, 739 flow [2024-11-19 05:54:02,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:02,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:02,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 656 transitions. [2024-11-19 05:54:02,705 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.800976800976801 [2024-11-19 05:54:02,705 INFO L175 Difference]: Start difference. First operand has 237 places, 239 transitions, 551 flow. Second operand 3 states and 656 transitions. [2024-11-19 05:54:02,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 260 transitions, 739 flow [2024-11-19 05:54:02,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 260 transitions, 713 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:54:02,712 INFO L231 Difference]: Finished difference. Result has 239 places, 246 transitions, 603 flow [2024-11-19 05:54:02,712 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=603, PETRI_PLACES=239, PETRI_TRANSITIONS=246} [2024-11-19 05:54:02,713 INFO L277 CegarLoopForPetriNet]: 243 programPoint places, -4 predicate places. [2024-11-19 05:54:02,713 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 246 transitions, 603 flow [2024-11-19 05:54:02,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:02,714 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:02,715 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:02,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 05:54:02,715 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-19 05:54:02,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:02,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1881481615, now seen corresponding path program 1 times [2024-11-19 05:54:02,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:02,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216881672] [2024-11-19 05:54:02,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:02,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:54:02,740 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 05:54:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:54:02,778 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 05:54:02,778 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 05:54:02,779 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-19 05:54:02,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-11-19 05:54:02,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-11-19 05:54:02,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-11-19 05:54:02,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-11-19 05:54:02,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-11-19 05:54:02,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-11-19 05:54:02,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-11-19 05:54:02,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-11-19 05:54:02,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-11-19 05:54:02,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-11-19 05:54:02,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-11-19 05:54:02,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-11-19 05:54:02,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-11-19 05:54:02,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-11-19 05:54:02,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-11-19 05:54:02,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-11-19 05:54:02,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-11-19 05:54:02,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-11-19 05:54:02,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-11-19 05:54:02,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-11-19 05:54:02,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-11-19 05:54:02,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-11-19 05:54:02,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 05:54:02,787 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-19 05:54:02,790 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 05:54:02,791 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-19 05:54:02,850 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 05:54:02,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 325 places, 366 transitions, 748 flow [2024-11-19 05:54:02,941 INFO L124 PetriNetUnfolderBase]: 88/674 cut-off events. [2024-11-19 05:54:02,941 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-19 05:54:02,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 686 conditions, 674 events. 88/674 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3424 event pairs, 0 based on Foata normal form. 0/547 useless extension candidates. Maximal degree in co-relation 415. Up to 9 conditions per place. [2024-11-19 05:54:02,956 INFO L82 GeneralOperation]: Start removeDead. Operand has 325 places, 366 transitions, 748 flow [2024-11-19 05:54:02,965 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 325 places, 366 transitions, 748 flow [2024-11-19 05:54:02,968 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:54:02,972 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;@4709a8fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:54:02,972 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-11-19 05:54:02,979 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:54:02,981 INFO L124 PetriNetUnfolderBase]: 2/61 cut-off events. [2024-11-19 05:54:02,981 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:54:02,981 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:02,981 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:02,981 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-19 05:54:02,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:02,982 INFO L85 PathProgramCache]: Analyzing trace with hash -742247900, now seen corresponding path program 1 times [2024-11-19 05:54:02,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:02,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137937520] [2024-11-19 05:54:02,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:02,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:03,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:03,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:03,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:03,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137937520] [2024-11-19 05:54:03,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137937520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:03,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:03,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:54:03,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847812975] [2024-11-19 05:54:03,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:03,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:03,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:03,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:03,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:03,058 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 366 [2024-11-19 05:54:03,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 366 transitions, 748 flow. Second operand has 3 states, 3 states have (on average 273.0) internal successors, (819), 3 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:03,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:03,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 366 [2024-11-19 05:54:03,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:07,695 INFO L124 PetriNetUnfolderBase]: 6064/28771 cut-off events. [2024-11-19 05:54:07,695 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2024-11-19 05:54:07,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38370 conditions, 28771 events. 6064/28771 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 358509 event pairs, 5747 based on Foata normal form. 6265/32376 useless extension candidates. Maximal degree in co-relation 33103. Up to 9513 conditions per place. [2024-11-19 05:54:07,932 INFO L140 encePairwiseOnDemand]: 320/366 looper letters, 59 selfloop transitions, 2 changer transitions 0/328 dead transitions. [2024-11-19 05:54:07,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 328 transitions, 794 flow [2024-11-19 05:54:07,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:07,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:07,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 931 transitions. [2024-11-19 05:54:07,935 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8479052823315119 [2024-11-19 05:54:07,935 INFO L175 Difference]: Start difference. First operand has 325 places, 366 transitions, 748 flow. Second operand 3 states and 931 transitions. [2024-11-19 05:54:07,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 328 transitions, 794 flow [2024-11-19 05:54:07,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 328 transitions, 794 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:54:07,942 INFO L231 Difference]: Finished difference. Result has 320 places, 316 transitions, 658 flow [2024-11-19 05:54:07,943 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=646, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=658, PETRI_PLACES=320, PETRI_TRANSITIONS=316} [2024-11-19 05:54:07,945 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -5 predicate places. [2024-11-19 05:54:07,946 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 316 transitions, 658 flow [2024-11-19 05:54:07,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 273.0) internal successors, (819), 3 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:07,947 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:07,947 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:07,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 05:54:07,947 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-19 05:54:07,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:07,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1340197524, now seen corresponding path program 1 times [2024-11-19 05:54:07,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:07,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403295612] [2024-11-19 05:54:07,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:07,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:08,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:08,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:08,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403295612] [2024-11-19 05:54:08,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403295612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:08,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:08,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:54:08,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444995913] [2024-11-19 05:54:08,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:08,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:54:08,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:08,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:54:08,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:54:08,453 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 366 [2024-11-19 05:54:08,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 316 transitions, 658 flow. Second operand has 6 states, 6 states have (on average 260.5) internal successors, (1563), 6 states have internal predecessors, (1563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:08,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:08,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 366 [2024-11-19 05:54:08,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:12,920 INFO L124 PetriNetUnfolderBase]: 9520/33311 cut-off events. [2024-11-19 05:54:12,920 INFO L125 PetriNetUnfolderBase]: For 293/293 co-relation queries the response was YES. [2024-11-19 05:54:13,009 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48487 conditions, 33311 events. 9520/33311 cut-off events. For 293/293 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 400788 event pairs, 804 based on Foata normal form. 0/30737 useless extension candidates. Maximal degree in co-relation 3745. Up to 11851 conditions per place. [2024-11-19 05:54:13,164 INFO L140 encePairwiseOnDemand]: 360/366 looper letters, 150 selfloop transitions, 6 changer transitions 0/411 dead transitions. [2024-11-19 05:54:13,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 411 transitions, 1160 flow [2024-11-19 05:54:13,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:54:13,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:54:13,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1710 transitions. [2024-11-19 05:54:13,169 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7786885245901639 [2024-11-19 05:54:13,170 INFO L175 Difference]: Start difference. First operand has 320 places, 316 transitions, 658 flow. Second operand 6 states and 1710 transitions. [2024-11-19 05:54:13,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 411 transitions, 1160 flow [2024-11-19 05:54:13,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 411 transitions, 1158 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:54:13,177 INFO L231 Difference]: Finished difference. Result has 323 places, 315 transitions, 666 flow [2024-11-19 05:54:13,178 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=666, PETRI_PLACES=323, PETRI_TRANSITIONS=315} [2024-11-19 05:54:13,180 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -2 predicate places. [2024-11-19 05:54:13,180 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 315 transitions, 666 flow [2024-11-19 05:54:13,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 260.5) internal successors, (1563), 6 states have internal predecessors, (1563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:13,183 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:13,183 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:13,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 05:54:13,184 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-19 05:54:13,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:13,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1036572882, now seen corresponding path program 1 times [2024-11-19 05:54:13,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:13,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333715740] [2024-11-19 05:54:13,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:13,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:13,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:13,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:13,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:13,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333715740] [2024-11-19 05:54:13,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333715740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:13,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:13,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:54:13,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455291768] [2024-11-19 05:54:13,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:13,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:13,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:13,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:13,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:13,272 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 366 [2024-11-19 05:54:13,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 315 transitions, 666 flow. Second operand has 3 states, 3 states have (on average 253.66666666666666) internal successors, (761), 3 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:13,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:13,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 366 [2024-11-19 05:54:13,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:25,196 INFO L124 PetriNetUnfolderBase]: 30961/107498 cut-off events. [2024-11-19 05:54:25,196 INFO L125 PetriNetUnfolderBase]: For 328/328 co-relation queries the response was YES. [2024-11-19 05:54:25,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156029 conditions, 107498 events. 30961/107498 cut-off events. For 328/328 co-relation queries the response was YES. Maximal size of possible extension queue 1586. Compared 1522073 event pairs, 10272 based on Foata normal form. 0/96175 useless extension candidates. Maximal degree in co-relation 150881. Up to 26160 conditions per place. [2024-11-19 05:54:26,065 INFO L140 encePairwiseOnDemand]: 341/366 looper letters, 108 selfloop transitions, 18 changer transitions 0/374 dead transitions. [2024-11-19 05:54:26,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 374 transitions, 1047 flow [2024-11-19 05:54:26,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:26,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:26,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 889 transitions. [2024-11-19 05:54:26,069 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8096539162112932 [2024-11-19 05:54:26,069 INFO L175 Difference]: Start difference. First operand has 323 places, 315 transitions, 666 flow. Second operand 3 states and 889 transitions. [2024-11-19 05:54:26,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 374 transitions, 1047 flow [2024-11-19 05:54:26,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 374 transitions, 1035 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 05:54:26,089 INFO L231 Difference]: Finished difference. Result has 322 places, 333 transitions, 812 flow [2024-11-19 05:54:26,090 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=812, PETRI_PLACES=322, PETRI_TRANSITIONS=333} [2024-11-19 05:54:26,091 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -3 predicate places. [2024-11-19 05:54:26,091 INFO L471 AbstractCegarLoop]: Abstraction has has 322 places, 333 transitions, 812 flow [2024-11-19 05:54:26,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.66666666666666) internal successors, (761), 3 states have internal predecessors, (761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:26,092 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:26,092 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:26,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 05:54:26,092 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-19 05:54:26,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:26,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1625617232, now seen corresponding path program 1 times [2024-11-19 05:54:26,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:26,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555053490] [2024-11-19 05:54:26,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:26,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:26,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:26,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:26,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555053490] [2024-11-19 05:54:26,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555053490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:26,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:26,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:54:26,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764432814] [2024-11-19 05:54:26,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:26,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:26,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:26,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:26,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:26,207 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 366 [2024-11-19 05:54:26,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 333 transitions, 812 flow. Second operand has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:26,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:26,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 366 [2024-11-19 05:54:26,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:40,757 INFO L124 PetriNetUnfolderBase]: 30282/120182 cut-off events. [2024-11-19 05:54:40,757 INFO L125 PetriNetUnfolderBase]: For 20146/20658 co-relation queries the response was YES. [2024-11-19 05:54:41,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187018 conditions, 120182 events. 30282/120182 cut-off events. For 20146/20658 co-relation queries the response was YES. Maximal size of possible extension queue 1761. Compared 1796059 event pairs, 21308 based on Foata normal form. 148/109150 useless extension candidates. Maximal degree in co-relation 121149. Up to 42544 conditions per place. [2024-11-19 05:54:41,559 INFO L140 encePairwiseOnDemand]: 355/366 looper letters, 94 selfloop transitions, 18 changer transitions 0/377 dead transitions. [2024-11-19 05:54:41,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 377 transitions, 1174 flow [2024-11-19 05:54:41,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:41,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:41,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 881 transitions. [2024-11-19 05:54:41,562 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.802367941712204 [2024-11-19 05:54:41,563 INFO L175 Difference]: Start difference. First operand has 322 places, 333 transitions, 812 flow. Second operand 3 states and 881 transitions. [2024-11-19 05:54:41,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 377 transitions, 1174 flow [2024-11-19 05:54:41,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 377 transitions, 1124 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:54:41,613 INFO L231 Difference]: Finished difference. Result has 324 places, 349 transitions, 942 flow [2024-11-19 05:54:41,614 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=942, PETRI_PLACES=324, PETRI_TRANSITIONS=349} [2024-11-19 05:54:41,615 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -1 predicate places. [2024-11-19 05:54:41,615 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 349 transitions, 942 flow [2024-11-19 05:54:41,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:41,616 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:41,616 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:41,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 05:54:41,616 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-19 05:54:41,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:41,617 INFO L85 PathProgramCache]: Analyzing trace with hash 15925911, now seen corresponding path program 1 times [2024-11-19 05:54:41,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:41,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352438034] [2024-11-19 05:54:41,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:41,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:41,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:41,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:41,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352438034] [2024-11-19 05:54:41,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352438034] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:54:41,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307876182] [2024-11-19 05:54:41,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:41,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:54:41,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:54:41,712 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:54:41,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 05:54:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:41,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 05:54:41,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:54:41,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:41,922 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:54:41,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:41,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307876182] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:54:41,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:54:41,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-19 05:54:41,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456793548] [2024-11-19 05:54:41,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:54:41,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:54:41,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:41,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:54:41,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 05:54:42,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 366 [2024-11-19 05:54:42,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 349 transitions, 942 flow. Second operand has 10 states, 10 states have (on average 270.5) internal successors, (2705), 10 states have internal predecessors, (2705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:42,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:42,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 366 [2024-11-19 05:54:42,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:43,323 INFO L124 PetriNetUnfolderBase]: 2122/10913 cut-off events. [2024-11-19 05:54:43,324 INFO L125 PetriNetUnfolderBase]: For 1187/1231 co-relation queries the response was YES. [2024-11-19 05:54:43,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15695 conditions, 10913 events. 2122/10913 cut-off events. For 1187/1231 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 116915 event pairs, 238 based on Foata normal form. 297/10451 useless extension candidates. Maximal degree in co-relation 10357. Up to 1457 conditions per place. [2024-11-19 05:54:43,381 INFO L140 encePairwiseOnDemand]: 361/366 looper letters, 138 selfloop transitions, 7 changer transitions 0/340 dead transitions. [2024-11-19 05:54:43,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 340 transitions, 1116 flow [2024-11-19 05:54:43,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:54:43,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:54:43,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2559 transitions. [2024-11-19 05:54:43,387 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7768670309653917 [2024-11-19 05:54:43,388 INFO L175 Difference]: Start difference. First operand has 324 places, 349 transitions, 942 flow. Second operand 9 states and 2559 transitions. [2024-11-19 05:54:43,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 340 transitions, 1116 flow [2024-11-19 05:54:43,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 340 transitions, 1096 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:54:43,398 INFO L231 Difference]: Finished difference. Result has 226 places, 230 transitions, 600 flow [2024-11-19 05:54:43,399 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=600, PETRI_PLACES=226, PETRI_TRANSITIONS=230} [2024-11-19 05:54:43,399 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -99 predicate places. [2024-11-19 05:54:43,400 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 230 transitions, 600 flow [2024-11-19 05:54:43,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 270.5) internal successors, (2705), 10 states have internal predecessors, (2705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:43,401 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:43,402 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:43,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 05:54:43,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-19 05:54:43,603 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-19 05:54:43,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:43,603 INFO L85 PathProgramCache]: Analyzing trace with hash 710031724, now seen corresponding path program 1 times [2024-11-19 05:54:43,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:43,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005908208] [2024-11-19 05:54:43,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:43,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:43,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:43,667 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 05:54:43,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:43,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005908208] [2024-11-19 05:54:43,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005908208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:43,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:43,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:54:43,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983896267] [2024-11-19 05:54:43,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:43,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:43,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:43,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:43,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:43,718 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 366 [2024-11-19 05:54:43,719 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 230 transitions, 600 flow. Second operand has 3 states, 3 states have (on average 264.6666666666667) internal successors, (794), 3 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:43,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:43,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 366 [2024-11-19 05:54:43,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:44,092 INFO L124 PetriNetUnfolderBase]: 494/3053 cut-off events. [2024-11-19 05:54:44,092 INFO L125 PetriNetUnfolderBase]: For 623/644 co-relation queries the response was YES. [2024-11-19 05:54:44,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4782 conditions, 3053 events. 494/3053 cut-off events. For 623/644 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 24434 event pairs, 318 based on Foata normal form. 7/2787 useless extension candidates. Maximal degree in co-relation 4704. Up to 933 conditions per place. [2024-11-19 05:54:44,113 INFO L140 encePairwiseOnDemand]: 358/366 looper letters, 60 selfloop transitions, 12 changer transitions 0/250 dead transitions. [2024-11-19 05:54:44,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 250 transitions, 800 flow [2024-11-19 05:54:44,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:44,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:44,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 843 transitions. [2024-11-19 05:54:44,115 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.76775956284153 [2024-11-19 05:54:44,115 INFO L175 Difference]: Start difference. First operand has 226 places, 230 transitions, 600 flow. Second operand 3 states and 843 transitions. [2024-11-19 05:54:44,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 250 transitions, 800 flow [2024-11-19 05:54:44,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 250 transitions, 785 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-19 05:54:44,122 INFO L231 Difference]: Finished difference. Result has 225 places, 238 transitions, 683 flow [2024-11-19 05:54:44,123 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=585, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=683, PETRI_PLACES=225, PETRI_TRANSITIONS=238} [2024-11-19 05:54:44,123 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -100 predicate places. [2024-11-19 05:54:44,124 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 238 transitions, 683 flow [2024-11-19 05:54:44,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.6666666666667) internal successors, (794), 3 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:44,124 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:44,125 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:44,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 05:54:44,125 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-19 05:54:44,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:44,126 INFO L85 PathProgramCache]: Analyzing trace with hash 173796495, now seen corresponding path program 1 times [2024-11-19 05:54:44,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:44,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454177764] [2024-11-19 05:54:44,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:44,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:44,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:44,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:44,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454177764] [2024-11-19 05:54:44,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454177764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:44,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:44,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:54:44,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556030447] [2024-11-19 05:54:44,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:44,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:44,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:44,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:44,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:44,237 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 366 [2024-11-19 05:54:44,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 238 transitions, 683 flow. Second operand has 3 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:44,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:44,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 366 [2024-11-19 05:54:44,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:44,686 INFO L124 PetriNetUnfolderBase]: 531/3151 cut-off events. [2024-11-19 05:54:44,686 INFO L125 PetriNetUnfolderBase]: For 1577/1642 co-relation queries the response was YES. [2024-11-19 05:54:44,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5376 conditions, 3151 events. 531/3151 cut-off events. For 1577/1642 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 25660 event pairs, 314 based on Foata normal form. 21/2934 useless extension candidates. Maximal degree in co-relation 5301. Up to 999 conditions per place. [2024-11-19 05:54:44,706 INFO L140 encePairwiseOnDemand]: 358/366 looper letters, 67 selfloop transitions, 12 changer transitions 0/259 dead transitions. [2024-11-19 05:54:44,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 259 transitions, 920 flow [2024-11-19 05:54:44,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:44,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:44,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 844 transitions. [2024-11-19 05:54:44,709 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7686703096539163 [2024-11-19 05:54:44,709 INFO L175 Difference]: Start difference. First operand has 225 places, 238 transitions, 683 flow. Second operand 3 states and 844 transitions. [2024-11-19 05:54:44,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 259 transitions, 920 flow [2024-11-19 05:54:44,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 259 transitions, 892 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:54:44,717 INFO L231 Difference]: Finished difference. Result has 227 places, 246 transitions, 769 flow [2024-11-19 05:54:44,718 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=659, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=769, PETRI_PLACES=227, PETRI_TRANSITIONS=246} [2024-11-19 05:54:44,719 INFO L277 CegarLoopForPetriNet]: 325 programPoint places, -98 predicate places. [2024-11-19 05:54:44,719 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 246 transitions, 769 flow [2024-11-19 05:54:44,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:44,720 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:44,720 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:44,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 05:54:44,720 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2024-11-19 05:54:44,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:44,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1442896868, now seen corresponding path program 1 times [2024-11-19 05:54:44,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:44,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259167191] [2024-11-19 05:54:44,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:44,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:44,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:54:44,754 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 05:54:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:54:44,790 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 05:54:44,790 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 05:54:44,790 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2024-11-19 05:54:44,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2024-11-19 05:54:44,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2024-11-19 05:54:44,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2024-11-19 05:54:44,791 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2024-11-19 05:54:44,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2024-11-19 05:54:44,792 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2024-11-19 05:54:44,793 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2024-11-19 05:54:44,793 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2024-11-19 05:54:44,793 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2024-11-19 05:54:44,793 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2024-11-19 05:54:44,793 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2024-11-19 05:54:44,793 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2024-11-19 05:54:44,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2024-11-19 05:54:44,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2024-11-19 05:54:44,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2024-11-19 05:54:44,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2024-11-19 05:54:44,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2024-11-19 05:54:44,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2024-11-19 05:54:44,794 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2024-11-19 05:54:44,795 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2024-11-19 05:54:44,795 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2024-11-19 05:54:44,795 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2024-11-19 05:54:44,797 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2024-11-19 05:54:44,797 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2024-11-19 05:54:44,797 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2024-11-19 05:54:44,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2024-11-19 05:54:44,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2024-11-19 05:54:44,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2024-11-19 05:54:44,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2024-11-19 05:54:44,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2024-11-19 05:54:44,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 05:54:44,799 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:44,800 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 05:54:44,800 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-19 05:54:44,854 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-19 05:54:44,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 407 places, 459 transitions, 945 flow [2024-11-19 05:54:45,049 INFO L124 PetriNetUnfolderBase]: 128/980 cut-off events. [2024-11-19 05:54:45,050 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-19 05:54:45,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1005 conditions, 980 events. 128/980 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5135 event pairs, 1 based on Foata normal form. 0/796 useless extension candidates. Maximal degree in co-relation 682. Up to 16 conditions per place. [2024-11-19 05:54:45,078 INFO L82 GeneralOperation]: Start removeDead. Operand has 407 places, 459 transitions, 945 flow [2024-11-19 05:54:45,092 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 407 places, 459 transitions, 945 flow [2024-11-19 05:54:45,094 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:54:45,094 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;@4709a8fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:54:45,095 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-19 05:54:45,100 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:54:45,100 INFO L124 PetriNetUnfolderBase]: 2/61 cut-off events. [2024-11-19 05:54:45,100 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:54:45,100 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:45,100 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:45,101 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2024-11-19 05:54:45,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:45,101 INFO L85 PathProgramCache]: Analyzing trace with hash -132417425, now seen corresponding path program 1 times [2024-11-19 05:54:45,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:45,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058756817] [2024-11-19 05:54:45,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:45,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:45,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:45,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:45,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058756817] [2024-11-19 05:54:45,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058756817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:45,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:45,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:54:45,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752638130] [2024-11-19 05:54:45,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:45,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:45,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:45,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:45,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:45,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 459 [2024-11-19 05:54:45,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 459 transitions, 945 flow. Second operand has 3 states, 3 states have (on average 340.0) internal successors, (1020), 3 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:45,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:45,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 459 [2024-11-19 05:54:45,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand