./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3289d67d 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/pthread-ext/40_barrier_vf-b.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 7e4eda3d9731a5d805cffabe3eaaa057ba5ed6235ab584548c3730cf4f9dedf3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 23:16:03,453 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 23:16:03,513 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-16 23:16:03,516 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 23:16:03,516 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 23:16:03,544 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 23:16:03,544 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 23:16:03,544 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 23:16:03,544 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 23:16:03,545 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 23:16:03,545 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 23:16:03,545 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 23:16:03,545 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 23:16:03,546 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 23:16:03,546 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 23:16:03,547 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 23:16:03,548 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 23:16:03,550 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 23:16:03,550 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 23:16:03,550 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 23:16:03,551 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 23:16:03,552 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 23:16:03,552 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-16 23:16:03,552 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 23:16:03,552 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-16 23:16:03,552 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 23:16:03,552 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 23:16:03,552 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 23:16:03,553 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 23:16:03,553 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 23:16:03,553 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 23:16:03,553 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:16:03,553 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 23:16:03,553 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 23:16:03,553 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 23:16:03,554 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 23:16:03,554 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 23:16:03,554 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 23:16:03,554 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 23:16:03,554 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 23:16:03,554 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 23:16:03,555 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e4eda3d9731a5d805cffabe3eaaa057ba5ed6235ab584548c3730cf4f9dedf3 [2024-11-16 23:16:03,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 23:16:03,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 23:16:03,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 23:16:03,762 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 23:16:03,763 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 23:16:03,764 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i [2024-11-16 23:16:04,977 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 23:16:05,205 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 23:16:05,205 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/40_barrier_vf-b.i [2024-11-16 23:16:05,222 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7471bedbd/f2b62cead90a4431b555e8168190e61e/FLAG2094a1689 [2024-11-16 23:16:05,555 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7471bedbd/f2b62cead90a4431b555e8168190e61e [2024-11-16 23:16:05,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 23:16:05,559 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 23:16:05,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 23:16:05,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 23:16:05,565 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 23:16:05,566 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:16:05" (1/1) ... [2024-11-16 23:16:05,567 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7542566b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:05, skipping insertion in model container [2024-11-16 23:16:05,567 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:16:05" (1/1) ... [2024-11-16 23:16:05,607 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 23:16:05,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:16:05,896 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 23:16:05,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 23:16:05,976 INFO L204 MainTranslator]: Completed translation [2024-11-16 23:16:05,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:05 WrapperNode [2024-11-16 23:16:05,977 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 23:16:05,978 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 23:16:05,978 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 23:16:05,978 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 23:16:05,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:05" (1/1) ... [2024-11-16 23:16:05,995 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:05" (1/1) ... [2024-11-16 23:16:06,015 INFO L138 Inliner]: procedures = 169, calls = 16, calls flagged for inlining = 11, calls inlined = 13, statements flattened = 116 [2024-11-16 23:16:06,017 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 23:16:06,017 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 23:16:06,018 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 23:16:06,018 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 23:16:06,028 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:05" (1/1) ... [2024-11-16 23:16:06,028 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:05" (1/1) ... [2024-11-16 23:16:06,034 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:05" (1/1) ... [2024-11-16 23:16:06,035 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:05" (1/1) ... [2024-11-16 23:16:06,042 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:05" (1/1) ... [2024-11-16 23:16:06,043 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:05" (1/1) ... [2024-11-16 23:16:06,044 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:05" (1/1) ... [2024-11-16 23:16:06,045 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:05" (1/1) ... [2024-11-16 23:16:06,050 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 23:16:06,051 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 23:16:06,051 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 23:16:06,051 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 23:16:06,052 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:05" (1/1) ... [2024-11-16 23:16:06,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 23:16:06,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 23:16:06,081 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) [2024-11-16 23:16:06,085 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 [2024-11-16 23:16:06,121 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-16 23:16:06,122 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-16 23:16:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 23:16:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-16 23:16:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 23:16:06,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 23:16:06,124 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 23:16:06,222 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 23:16:06,224 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 23:16:06,400 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 23:16:06,400 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 23:16:06,513 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 23:16:06,514 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 23:16:06,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:16:06 BoogieIcfgContainer [2024-11-16 23:16:06,515 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 23:16:06,518 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 23:16:06,518 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 23:16:06,521 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 23:16:06,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:16:05" (1/3) ... [2024-11-16 23:16:06,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e181777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:16:06, skipping insertion in model container [2024-11-16 23:16:06,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:16:05" (2/3) ... [2024-11-16 23:16:06,522 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e181777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:16:06, skipping insertion in model container [2024-11-16 23:16:06,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:16:06" (3/3) ... [2024-11-16 23:16:06,523 INFO L112 eAbstractionObserver]: Analyzing ICFG 40_barrier_vf-b.i [2024-11-16 23:16:06,534 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 23:16:06,535 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2024-11-16 23:16:06,535 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 23:16:06,580 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:16:06,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 96 transitions, 196 flow [2024-11-16 23:16:06,671 INFO L124 PetriNetUnfolderBase]: 6/106 cut-off events. [2024-11-16 23:16:06,672 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:16:06,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 106 events. 6/106 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 158 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 82. Up to 4 conditions per place. [2024-11-16 23:16:06,676 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 96 transitions, 196 flow [2024-11-16 23:16:06,679 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 96 transitions, 196 flow [2024-11-16 23:16:06,686 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:16:06,690 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;@17389bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:16:06,691 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2024-11-16 23:16:06,698 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:16:06,698 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2024-11-16 23:16:06,698 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:16:06,698 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:16:06,699 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] [2024-11-16 23:16:06,699 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-16 23:16:06,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:16:06,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1429468489, now seen corresponding path program 1 times [2024-11-16 23:16:06,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:16:06,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350725673] [2024-11-16 23:16:06,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:16:06,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:16:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:16:06,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:16:06,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:16:06,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350725673] [2024-11-16 23:16:06,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350725673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:16:06,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:16:06,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 23:16:06,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866245396] [2024-11-16 23:16:06,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:16:06,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:16:06,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:16:06,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:16:06,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:16:06,897 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 96 [2024-11-16 23:16:06,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 96 transitions, 196 flow. Second operand has 2 states, 2 states have (on average 77.0) internal successors, (154), 2 states have internal predecessors, (154), 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) [2024-11-16 23:16:06,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:16:06,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 96 [2024-11-16 23:16:06,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:16:06,931 INFO L124 PetriNetUnfolderBase]: 1/80 cut-off events. [2024-11-16 23:16:06,931 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:16:06,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 80 events. 1/80 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 14/85 useless extension candidates. Maximal degree in co-relation 65. Up to 6 conditions per place. [2024-11-16 23:16:06,933 INFO L140 encePairwiseOnDemand]: 82/96 looper letters, 5 selfloop transitions, 0 changer transitions 0/75 dead transitions. [2024-11-16 23:16:06,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 75 transitions, 164 flow [2024-11-16 23:16:06,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:16:06,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:16:06,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 171 transitions. [2024-11-16 23:16:06,944 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.890625 [2024-11-16 23:16:06,946 INFO L175 Difference]: Start difference. First operand has 94 places, 96 transitions, 196 flow. Second operand 2 states and 171 transitions. [2024-11-16 23:16:06,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 75 transitions, 164 flow [2024-11-16 23:16:06,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 75 transitions, 164 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:16:06,953 INFO L231 Difference]: Finished difference. Result has 78 places, 75 transitions, 154 flow [2024-11-16 23:16:06,956 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=154, PETRI_PLACES=78, PETRI_TRANSITIONS=75} [2024-11-16 23:16:06,958 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, -16 predicate places. [2024-11-16 23:16:06,958 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 75 transitions, 154 flow [2024-11-16 23:16:06,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 77.0) internal successors, (154), 2 states have internal predecessors, (154), 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) [2024-11-16 23:16:06,959 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:16:06,959 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] [2024-11-16 23:16:06,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 23:16:06,960 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-16 23:16:06,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:16:06,960 INFO L85 PathProgramCache]: Analyzing trace with hash -670303891, now seen corresponding path program 1 times [2024-11-16 23:16:06,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:16:06,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778707083] [2024-11-16 23:16:06,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:16:06,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:16:06,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:16:07,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:16:07,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:16:07,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778707083] [2024-11-16 23:16:07,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778707083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:16:07,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:16:07,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:16:07,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465618779] [2024-11-16 23:16:07,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:16:07,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:16:07,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:16:07,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:16:07,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:16:07,068 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 96 [2024-11-16 23:16:07,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 75 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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) [2024-11-16 23:16:07,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:16:07,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 96 [2024-11-16 23:16:07,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:16:07,100 INFO L124 PetriNetUnfolderBase]: 0/83 cut-off events. [2024-11-16 23:16:07,100 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 23:16:07,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 83 events. 0/83 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2024-11-16 23:16:07,101 INFO L140 encePairwiseOnDemand]: 90/96 looper letters, 8 selfloop transitions, 4 changer transitions 0/74 dead transitions. [2024-11-16 23:16:07,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 74 transitions, 176 flow [2024-11-16 23:16:07,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:16:07,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:16:07,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2024-11-16 23:16:07,104 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7569444444444444 [2024-11-16 23:16:07,104 INFO L175 Difference]: Start difference. First operand has 78 places, 75 transitions, 154 flow. Second operand 3 states and 218 transitions. [2024-11-16 23:16:07,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 74 transitions, 176 flow [2024-11-16 23:16:07,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 74 transitions, 176 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:16:07,108 INFO L231 Difference]: Finished difference. Result has 78 places, 73 transitions, 158 flow [2024-11-16 23:16:07,109 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=78, PETRI_TRANSITIONS=73} [2024-11-16 23:16:07,109 INFO L277 CegarLoopForPetriNet]: 94 programPoint places, -16 predicate places. [2024-11-16 23:16:07,109 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 73 transitions, 158 flow [2024-11-16 23:16:07,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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) [2024-11-16 23:16:07,110 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:16:07,110 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:16:07,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 23:16:07,110 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2024-11-16 23:16:07,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:16:07,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1995589794, now seen corresponding path program 1 times [2024-11-16 23:16:07,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:16:07,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864395809] [2024-11-16 23:16:07,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:16:07,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:16:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:16:07,124 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:16:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:16:07,152 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:16:07,153 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:16:07,155 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2024-11-16 23:16:07,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2024-11-16 23:16:07,158 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2024-11-16 23:16:07,159 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2024-11-16 23:16:07,159 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2024-11-16 23:16:07,159 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2024-11-16 23:16:07,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2024-11-16 23:16:07,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2024-11-16 23:16:07,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2024-11-16 23:16:07,160 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2024-11-16 23:16:07,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2024-11-16 23:16:07,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2024-11-16 23:16:07,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2024-11-16 23:16:07,161 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2024-11-16 23:16:07,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2024-11-16 23:16:07,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2024-11-16 23:16:07,162 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2024-11-16 23:16:07,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2024-11-16 23:16:07,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2024-11-16 23:16:07,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 31 remaining) [2024-11-16 23:16:07,163 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 31 remaining) [2024-11-16 23:16:07,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2024-11-16 23:16:07,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2024-11-16 23:16:07,164 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2024-11-16 23:16:07,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2024-11-16 23:16:07,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2024-11-16 23:16:07,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2024-11-16 23:16:07,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2024-11-16 23:16:07,165 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2024-11-16 23:16:07,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2024-11-16 23:16:07,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2024-11-16 23:16:07,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 23:16:07,166 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-16 23:16:07,168 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:16:07,169 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-16 23:16:07,202 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:16:07,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 167 transitions, 344 flow [2024-11-16 23:16:07,238 INFO L124 PetriNetUnfolderBase]: 11/189 cut-off events. [2024-11-16 23:16:07,238 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-16 23:16:07,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 189 events. 11/189 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 508 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 152. Up to 6 conditions per place. [2024-11-16 23:16:07,240 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 167 transitions, 344 flow [2024-11-16 23:16:07,242 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 163 places, 167 transitions, 344 flow [2024-11-16 23:16:07,244 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:16:07,246 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;@17389bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:16:07,246 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2024-11-16 23:16:07,251 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:16:07,251 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2024-11-16 23:16:07,251 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:16:07,251 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:16:07,252 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] [2024-11-16 23:16:07,252 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-16 23:16:07,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:16:07,252 INFO L85 PathProgramCache]: Analyzing trace with hash 108033712, now seen corresponding path program 1 times [2024-11-16 23:16:07,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:16:07,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472837374] [2024-11-16 23:16:07,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:16:07,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:16:07,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:16:07,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:16:07,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:16:07,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472837374] [2024-11-16 23:16:07,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472837374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:16:07,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:16:07,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 23:16:07,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708495507] [2024-11-16 23:16:07,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:16:07,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:16:07,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:16:07,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:16:07,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:16:07,282 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 167 [2024-11-16 23:16:07,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 167 transitions, 344 flow. Second operand has 2 states, 2 states have (on average 130.0) internal successors, (260), 2 states have internal predecessors, (260), 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) [2024-11-16 23:16:07,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:16:07,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 167 [2024-11-16 23:16:07,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:16:07,365 INFO L124 PetriNetUnfolderBase]: 25/373 cut-off events. [2024-11-16 23:16:07,366 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-16 23:16:07,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 373 events. 25/373 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1766 event pairs, 14 based on Foata normal form. 87/400 useless extension candidates. Maximal degree in co-relation 331. Up to 50 conditions per place. [2024-11-16 23:16:07,370 INFO L140 encePairwiseOnDemand]: 141/167 looper letters, 10 selfloop transitions, 0 changer transitions 0/130 dead transitions. [2024-11-16 23:16:07,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 130 transitions, 290 flow [2024-11-16 23:16:07,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:16:07,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:16:07,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 294 transitions. [2024-11-16 23:16:07,373 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8802395209580839 [2024-11-16 23:16:07,373 INFO L175 Difference]: Start difference. First operand has 163 places, 167 transitions, 344 flow. Second operand 2 states and 294 transitions. [2024-11-16 23:16:07,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 130 transitions, 290 flow [2024-11-16 23:16:07,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 130 transitions, 290 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:16:07,376 INFO L231 Difference]: Finished difference. Result has 134 places, 130 transitions, 270 flow [2024-11-16 23:16:07,376 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=270, PETRI_PLACES=134, PETRI_TRANSITIONS=130} [2024-11-16 23:16:07,377 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, -29 predicate places. [2024-11-16 23:16:07,377 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 130 transitions, 270 flow [2024-11-16 23:16:07,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 130.0) internal successors, (260), 2 states have internal predecessors, (260), 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) [2024-11-16 23:16:07,378 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:16:07,378 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] [2024-11-16 23:16:07,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 23:16:07,378 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-16 23:16:07,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:16:07,379 INFO L85 PathProgramCache]: Analyzing trace with hash 741202612, now seen corresponding path program 1 times [2024-11-16 23:16:07,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:16:07,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366498640] [2024-11-16 23:16:07,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:16:07,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:16:07,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:16:07,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:16:07,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:16:07,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366498640] [2024-11-16 23:16:07,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366498640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:16:07,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:16:07,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:16:07,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153066658] [2024-11-16 23:16:07,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:16:07,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:16:07,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:16:07,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:16:07,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:16:07,453 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 167 [2024-11-16 23:16:07,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 130 transitions, 270 flow. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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) [2024-11-16 23:16:07,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:16:07,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 167 [2024-11-16 23:16:07,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:16:07,637 INFO L124 PetriNetUnfolderBase]: 168/1341 cut-off events. [2024-11-16 23:16:07,637 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-16 23:16:07,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1759 conditions, 1341 events. 168/1341 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 10500 event pairs, 47 based on Foata normal form. 0/1151 useless extension candidates. Maximal degree in co-relation 1754. Up to 243 conditions per place. [2024-11-16 23:16:07,649 INFO L140 encePairwiseOnDemand]: 151/167 looper letters, 35 selfloop transitions, 12 changer transitions 0/151 dead transitions. [2024-11-16 23:16:07,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 151 transitions, 411 flow [2024-11-16 23:16:07,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:16:07,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:16:07,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2024-11-16 23:16:07,653 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7784431137724551 [2024-11-16 23:16:07,653 INFO L175 Difference]: Start difference. First operand has 134 places, 130 transitions, 270 flow. Second operand 3 states and 390 transitions. [2024-11-16 23:16:07,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 151 transitions, 411 flow [2024-11-16 23:16:07,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 151 transitions, 411 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:16:07,658 INFO L231 Difference]: Finished difference. Result has 138 places, 142 transitions, 374 flow [2024-11-16 23:16:07,658 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=138, PETRI_TRANSITIONS=142} [2024-11-16 23:16:07,659 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, -25 predicate places. [2024-11-16 23:16:07,660 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 142 transitions, 374 flow [2024-11-16 23:16:07,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 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) [2024-11-16 23:16:07,660 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:16:07,660 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] [2024-11-16 23:16:07,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 23:16:07,661 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-16 23:16:07,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:16:07,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1157121545, now seen corresponding path program 1 times [2024-11-16 23:16:07,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:16:07,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768885555] [2024-11-16 23:16:07,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:16:07,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:16:07,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:16:07,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:16:07,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:16:07,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768885555] [2024-11-16 23:16:07,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768885555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:16:07,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:16:07,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:16:07,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828702707] [2024-11-16 23:16:07,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:16:07,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:16:07,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:16:07,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:16:07,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:16:07,744 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 167 [2024-11-16 23:16:07,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 142 transitions, 374 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2024-11-16 23:16:07,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:16:07,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 167 [2024-11-16 23:16:07,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:16:07,911 INFO L124 PetriNetUnfolderBase]: 239/1730 cut-off events. [2024-11-16 23:16:07,911 INFO L125 PetriNetUnfolderBase]: For 374/395 co-relation queries the response was YES. [2024-11-16 23:16:07,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2635 conditions, 1730 events. 239/1730 cut-off events. For 374/395 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 14423 event pairs, 111 based on Foata normal form. 3/1495 useless extension candidates. Maximal degree in co-relation 2628. Up to 431 conditions per place. [2024-11-16 23:16:07,918 INFO L140 encePairwiseOnDemand]: 159/167 looper letters, 35 selfloop transitions, 10 changer transitions 0/155 dead transitions. [2024-11-16 23:16:07,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 155 transitions, 515 flow [2024-11-16 23:16:07,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:16:07,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:16:07,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 381 transitions. [2024-11-16 23:16:07,920 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7604790419161677 [2024-11-16 23:16:07,920 INFO L175 Difference]: Start difference. First operand has 138 places, 142 transitions, 374 flow. Second operand 3 states and 381 transitions. [2024-11-16 23:16:07,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 155 transitions, 515 flow [2024-11-16 23:16:07,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 155 transitions, 483 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:16:07,924 INFO L231 Difference]: Finished difference. Result has 140 places, 150 transitions, 436 flow [2024-11-16 23:16:07,924 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=436, PETRI_PLACES=140, PETRI_TRANSITIONS=150} [2024-11-16 23:16:07,924 INFO L277 CegarLoopForPetriNet]: 163 programPoint places, -23 predicate places. [2024-11-16 23:16:07,924 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 150 transitions, 436 flow [2024-11-16 23:16:07,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2024-11-16 23:16:07,925 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:16:07,925 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:16:07,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 23:16:07,925 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2024-11-16 23:16:07,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:16:07,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1498228914, now seen corresponding path program 1 times [2024-11-16 23:16:07,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:16:07,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627211812] [2024-11-16 23:16:07,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:16:07,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:16:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:16:07,940 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:16:07,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:16:07,951 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:16:07,952 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:16:07,952 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 46 remaining) [2024-11-16 23:16:07,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2024-11-16 23:16:07,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2024-11-16 23:16:07,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2024-11-16 23:16:07,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2024-11-16 23:16:07,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2024-11-16 23:16:07,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2024-11-16 23:16:07,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2024-11-16 23:16:07,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2024-11-16 23:16:07,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2024-11-16 23:16:07,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2024-11-16 23:16:07,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2024-11-16 23:16:07,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2024-11-16 23:16:07,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2024-11-16 23:16:07,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2024-11-16 23:16:07,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2024-11-16 23:16:07,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2024-11-16 23:16:07,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2024-11-16 23:16:07,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2024-11-16 23:16:07,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2024-11-16 23:16:07,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2024-11-16 23:16:07,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2024-11-16 23:16:07,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2024-11-16 23:16:07,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2024-11-16 23:16:07,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2024-11-16 23:16:07,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 46 remaining) [2024-11-16 23:16:07,956 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 46 remaining) [2024-11-16 23:16:07,957 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2024-11-16 23:16:07,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2024-11-16 23:16:07,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2024-11-16 23:16:07,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2024-11-16 23:16:07,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2024-11-16 23:16:07,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2024-11-16 23:16:07,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2024-11-16 23:16:07,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2024-11-16 23:16:07,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2024-11-16 23:16:07,958 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2024-11-16 23:16:07,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2024-11-16 23:16:07,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2024-11-16 23:16:07,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2024-11-16 23:16:07,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2024-11-16 23:16:07,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2024-11-16 23:16:07,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2024-11-16 23:16:07,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2024-11-16 23:16:07,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2024-11-16 23:16:07,959 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2024-11-16 23:16:07,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 23:16:07,959 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-16 23:16:07,960 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:16:07,960 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-16 23:16:07,995 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:16:07,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 232 places, 238 transitions, 494 flow [2024-11-16 23:16:08,021 INFO L124 PetriNetUnfolderBase]: 16/272 cut-off events. [2024-11-16 23:16:08,021 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-16 23:16:08,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 272 events. 16/272 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 929 event pairs, 0 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 222. Up to 8 conditions per place. [2024-11-16 23:16:08,022 INFO L82 GeneralOperation]: Start removeDead. Operand has 232 places, 238 transitions, 494 flow [2024-11-16 23:16:08,026 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 232 places, 238 transitions, 494 flow [2024-11-16 23:16:08,027 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:16:08,027 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;@17389bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:16:08,027 INFO L334 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2024-11-16 23:16:08,029 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:16:08,031 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2024-11-16 23:16:08,031 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:16:08,031 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:16:08,031 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] [2024-11-16 23:16:08,031 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-16 23:16:08,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:16:08,031 INFO L85 PathProgramCache]: Analyzing trace with hash -310247400, now seen corresponding path program 1 times [2024-11-16 23:16:08,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:16:08,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241234973] [2024-11-16 23:16:08,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:16:08,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:16:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:16:08,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:16:08,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:16:08,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241234973] [2024-11-16 23:16:08,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241234973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:16:08,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:16:08,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 23:16:08,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836477660] [2024-11-16 23:16:08,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:16:08,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:16:08,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:16:08,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:16:08,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:16:08,050 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 238 [2024-11-16 23:16:08,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 238 transitions, 494 flow. Second operand has 2 states, 2 states have (on average 183.0) internal successors, (366), 2 states have internal predecessors, (366), 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) [2024-11-16 23:16:08,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:16:08,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 238 [2024-11-16 23:16:08,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:16:08,244 INFO L124 PetriNetUnfolderBase]: 250/1766 cut-off events. [2024-11-16 23:16:08,245 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2024-11-16 23:16:08,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2242 conditions, 1766 events. 250/1766 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 14411 event pairs, 161 based on Foata normal form. 538/2005 useless extension candidates. Maximal degree in co-relation 1685. Up to 378 conditions per place. [2024-11-16 23:16:08,256 INFO L140 encePairwiseOnDemand]: 200/238 looper letters, 15 selfloop transitions, 0 changer transitions 0/185 dead transitions. [2024-11-16 23:16:08,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 185 transitions, 418 flow [2024-11-16 23:16:08,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:16:08,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:16:08,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 417 transitions. [2024-11-16 23:16:08,258 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8760504201680672 [2024-11-16 23:16:08,258 INFO L175 Difference]: Start difference. First operand has 232 places, 238 transitions, 494 flow. Second operand 2 states and 417 transitions. [2024-11-16 23:16:08,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 185 transitions, 418 flow [2024-11-16 23:16:08,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 185 transitions, 416 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-16 23:16:08,261 INFO L231 Difference]: Finished difference. Result has 190 places, 185 transitions, 386 flow [2024-11-16 23:16:08,261 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=386, PETRI_PLACES=190, PETRI_TRANSITIONS=185} [2024-11-16 23:16:08,262 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -42 predicate places. [2024-11-16 23:16:08,262 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 185 transitions, 386 flow [2024-11-16 23:16:08,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 183.0) internal successors, (366), 2 states have internal predecessors, (366), 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) [2024-11-16 23:16:08,263 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:16:08,263 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] [2024-11-16 23:16:08,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 23:16:08,263 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-16 23:16:08,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:16:08,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1794979876, now seen corresponding path program 1 times [2024-11-16 23:16:08,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:16:08,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201157450] [2024-11-16 23:16:08,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:16:08,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:16:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:16:08,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:16:08,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:16:08,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201157450] [2024-11-16 23:16:08,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201157450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:16:08,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:16:08,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:16:08,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812511245] [2024-11-16 23:16:08,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:16:08,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:16:08,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:16:08,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:16:08,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:16:08,329 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 238 [2024-11-16 23:16:08,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 185 transitions, 386 flow. Second operand has 3 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 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) [2024-11-16 23:16:08,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:16:08,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 238 [2024-11-16 23:16:08,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:16:10,183 INFO L124 PetriNetUnfolderBase]: 5416/22844 cut-off events. [2024-11-16 23:16:10,185 INFO L125 PetriNetUnfolderBase]: For 634/634 co-relation queries the response was YES. [2024-11-16 23:16:10,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32111 conditions, 22844 events. 5416/22844 cut-off events. For 634/634 co-relation queries the response was YES. Maximal size of possible extension queue 657. Compared 298441 event pairs, 1708 based on Foata normal form. 0/19368 useless extension candidates. Maximal degree in co-relation 32105. Up to 5479 conditions per place. [2024-11-16 23:16:10,338 INFO L140 encePairwiseOnDemand]: 214/238 looper letters, 53 selfloop transitions, 18 changer transitions 0/217 dead transitions. [2024-11-16 23:16:10,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 217 transitions, 602 flow [2024-11-16 23:16:10,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:16:10,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:16:10,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 551 transitions. [2024-11-16 23:16:10,340 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7717086834733894 [2024-11-16 23:16:10,340 INFO L175 Difference]: Start difference. First operand has 190 places, 185 transitions, 386 flow. Second operand 3 states and 551 transitions. [2024-11-16 23:16:10,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 217 transitions, 602 flow [2024-11-16 23:16:10,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 217 transitions, 602 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 23:16:10,344 INFO L231 Difference]: Finished difference. Result has 194 places, 203 transitions, 542 flow [2024-11-16 23:16:10,344 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=542, PETRI_PLACES=194, PETRI_TRANSITIONS=203} [2024-11-16 23:16:10,345 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -38 predicate places. [2024-11-16 23:16:10,345 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 203 transitions, 542 flow [2024-11-16 23:16:10,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 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) [2024-11-16 23:16:10,345 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:16:10,345 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] [2024-11-16 23:16:10,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 23:16:10,345 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-16 23:16:10,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:16:10,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1963617085, now seen corresponding path program 1 times [2024-11-16 23:16:10,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:16:10,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763298810] [2024-11-16 23:16:10,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:16:10,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:16:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:16:10,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:16:10,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:16:10,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763298810] [2024-11-16 23:16:10,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763298810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:16:10,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:16:10,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:16:10,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043914177] [2024-11-16 23:16:10,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:16:10,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:16:10,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:16:10,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:16:10,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:16:10,429 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 238 [2024-11-16 23:16:10,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 203 transitions, 542 flow. Second operand has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 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) [2024-11-16 23:16:10,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:16:10,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 238 [2024-11-16 23:16:10,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:16:13,060 INFO L124 PetriNetUnfolderBase]: 7438/33086 cut-off events. [2024-11-16 23:16:13,060 INFO L125 PetriNetUnfolderBase]: For 9025/9977 co-relation queries the response was YES. [2024-11-16 23:16:13,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53636 conditions, 33086 events. 7438/33086 cut-off events. For 9025/9977 co-relation queries the response was YES. Maximal size of possible extension queue 900. Compared 462227 event pairs, 3519 based on Foata normal form. 55/28153 useless extension candidates. Maximal degree in co-relation 53628. Up to 9736 conditions per place. [2024-11-16 23:16:13,271 INFO L140 encePairwiseOnDemand]: 226/238 looper letters, 53 selfloop transitions, 20 changer transitions 0/231 dead transitions. [2024-11-16 23:16:13,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 231 transitions, 802 flow [2024-11-16 23:16:13,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:16:13,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:16:13,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 546 transitions. [2024-11-16 23:16:13,273 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7647058823529411 [2024-11-16 23:16:13,273 INFO L175 Difference]: Start difference. First operand has 194 places, 203 transitions, 542 flow. Second operand 3 states and 546 transitions. [2024-11-16 23:16:13,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 231 transitions, 802 flow [2024-11-16 23:16:13,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 231 transitions, 750 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:16:13,290 INFO L231 Difference]: Finished difference. Result has 196 places, 221 transitions, 692 flow [2024-11-16 23:16:13,291 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=692, PETRI_PLACES=196, PETRI_TRANSITIONS=221} [2024-11-16 23:16:13,292 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -36 predicate places. [2024-11-16 23:16:13,292 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 221 transitions, 692 flow [2024-11-16 23:16:13,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 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) [2024-11-16 23:16:13,293 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:16:13,293 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-16 23:16:13,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 23:16:13,293 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-16 23:16:13,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:16:13,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1541918083, now seen corresponding path program 1 times [2024-11-16 23:16:13,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:16:13,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656456598] [2024-11-16 23:16:13,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:16:13,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:16:13,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:16:13,318 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 23:16:13,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:16:13,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656456598] [2024-11-16 23:16:13,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656456598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:16:13,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:16:13,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:16:13,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120801528] [2024-11-16 23:16:13,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:16:13,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:16:13,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:16:13,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:16:13,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:16:13,366 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 238 [2024-11-16 23:16:13,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 221 transitions, 692 flow. Second operand has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 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) [2024-11-16 23:16:13,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:16:13,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 238 [2024-11-16 23:16:13,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:16:16,234 INFO L124 PetriNetUnfolderBase]: 9215/38383 cut-off events. [2024-11-16 23:16:16,234 INFO L125 PetriNetUnfolderBase]: For 15670/17359 co-relation queries the response was YES. [2024-11-16 23:16:16,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66220 conditions, 38383 events. 9215/38383 cut-off events. For 15670/17359 co-relation queries the response was YES. Maximal size of possible extension queue 1130. Compared 542322 event pairs, 3938 based on Foata normal form. 63/32404 useless extension candidates. Maximal degree in co-relation 66211. Up to 11831 conditions per place. [2024-11-16 23:16:16,489 INFO L140 encePairwiseOnDemand]: 226/238 looper letters, 66 selfloop transitions, 28 changer transitions 0/254 dead transitions. [2024-11-16 23:16:16,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 254 transitions, 1043 flow [2024-11-16 23:16:16,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:16:16,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:16:16,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 545 transitions. [2024-11-16 23:16:16,491 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7633053221288515 [2024-11-16 23:16:16,491 INFO L175 Difference]: Start difference. First operand has 196 places, 221 transitions, 692 flow. Second operand 3 states and 545 transitions. [2024-11-16 23:16:16,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 254 transitions, 1043 flow [2024-11-16 23:16:16,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 254 transitions, 987 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:16:16,534 INFO L231 Difference]: Finished difference. Result has 198 places, 245 transitions, 938 flow [2024-11-16 23:16:16,534 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=938, PETRI_PLACES=198, PETRI_TRANSITIONS=245} [2024-11-16 23:16:16,535 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -34 predicate places. [2024-11-16 23:16:16,535 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 245 transitions, 938 flow [2024-11-16 23:16:16,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.66666666666666) internal successors, (500), 3 states have internal predecessors, (500), 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) [2024-11-16 23:16:16,535 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:16:16,536 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] [2024-11-16 23:16:16,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 23:16:16,536 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-16 23:16:16,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:16:16,536 INFO L85 PathProgramCache]: Analyzing trace with hash -2006576891, now seen corresponding path program 1 times [2024-11-16 23:16:16,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:16:16,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230358471] [2024-11-16 23:16:16,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:16:16,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:16:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:16:16,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:16:16,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:16:16,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230358471] [2024-11-16 23:16:16,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230358471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:16:16,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:16:16,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:16:16,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424599884] [2024-11-16 23:16:16,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:16:16,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:16:16,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:16:16,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:16:16,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:16:16,603 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 238 [2024-11-16 23:16:16,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 245 transitions, 938 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 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) [2024-11-16 23:16:16,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:16:16,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 238 [2024-11-16 23:16:16,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:16:20,517 INFO L124 PetriNetUnfolderBase]: 10351/46227 cut-off events. [2024-11-16 23:16:20,517 INFO L125 PetriNetUnfolderBase]: For 9932/11008 co-relation queries the response was YES. [2024-11-16 23:16:20,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74569 conditions, 46227 events. 10351/46227 cut-off events. For 9932/11008 co-relation queries the response was YES. Maximal size of possible extension queue 1440. Compared 690597 event pairs, 3889 based on Foata normal form. 60/39704 useless extension candidates. Maximal degree in co-relation 74559. Up to 9591 conditions per place. [2024-11-16 23:16:20,897 INFO L140 encePairwiseOnDemand]: 223/238 looper letters, 44 selfloop transitions, 12 changer transitions 0/271 dead transitions. [2024-11-16 23:16:20,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 271 transitions, 1112 flow [2024-11-16 23:16:20,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:16:20,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:16:20,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2024-11-16 23:16:20,899 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7843137254901961 [2024-11-16 23:16:20,899 INFO L175 Difference]: Start difference. First operand has 198 places, 245 transitions, 938 flow. Second operand 3 states and 560 transitions. [2024-11-16 23:16:20,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 271 transitions, 1112 flow [2024-11-16 23:16:20,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 271 transitions, 1056 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:16:20,922 INFO L231 Difference]: Finished difference. Result has 200 places, 257 transitions, 984 flow [2024-11-16 23:16:20,923 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=984, PETRI_PLACES=200, PETRI_TRANSITIONS=257} [2024-11-16 23:16:20,923 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -32 predicate places. [2024-11-16 23:16:20,923 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 257 transitions, 984 flow [2024-11-16 23:16:20,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 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) [2024-11-16 23:16:20,924 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:16:20,924 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] [2024-11-16 23:16:20,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 23:16:20,924 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-16 23:16:20,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:16:20,924 INFO L85 PathProgramCache]: Analyzing trace with hash -2075354550, now seen corresponding path program 1 times [2024-11-16 23:16:20,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:16:20,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211369207] [2024-11-16 23:16:20,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:16:20,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:16:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:16:20,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:16:20,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:16:20,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211369207] [2024-11-16 23:16:20,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211369207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:16:20,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:16:20,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:16:20,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514771073] [2024-11-16 23:16:20,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:16:20,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:16:20,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:16:20,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:16:20,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:16:20,998 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 238 [2024-11-16 23:16:20,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 257 transitions, 984 flow. Second operand has 3 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 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) [2024-11-16 23:16:20,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:16:20,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 238 [2024-11-16 23:16:20,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:16:23,643 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([907] L708-13-->L708-11: Formula: (and (= v_~MTX~0_122 0) (not (= (ite (= (mod v_~MTX~0_123 256) 1) 1 0) 0))) InVars {~MTX~0=v_~MTX~0_123} OutVars{thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1_7|, #race~MTX~0=|v_#race~MTX~0_153|, ~MTX~0=v_~MTX~0_122, thr1Thread2of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1=|v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1_5|, thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1_7|} AuxVars[] AssignedVars[~MTX~0, thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1, #race~MTX~0, thr1Thread2of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1, thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1][99], [201#L703-2true, 235#true, 233#true, 229#true, 252#true, 87#L717-2true, 115#Barrier2_returnLabel#1true, Black: 237#true, 231#true, Black: 244#(= |thr1Thread1of3ForFork0_Barrier2_#t~nondet6#1| |#race~count~0|), 96#L708-11true, 257#true, Black: 249#(= |#race~count~0| |thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1|), Black: 254#(= |#race~COND~0| 0)]) [2024-11-16 23:16:23,643 INFO L294 olderBase$Statistics]: this new event has 90 ancestors and is cut-off event [2024-11-16 23:16:23,643 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-11-16 23:16:23,643 INFO L297 olderBase$Statistics]: existing Event has 90 ancestors and is cut-off event [2024-11-16 23:16:23,643 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2024-11-16 23:16:23,643 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([910] L705-2-->L705-1: Formula: (= |v_thr1Thread2of3ForFork0_Barrier2_#t~nondet7#1_5| |v_#race~COND~0_3|) InVars {thr1Thread2of3ForFork0_Barrier2_#t~nondet7#1=|v_thr1Thread2of3ForFork0_Barrier2_#t~nondet7#1_5|} OutVars{thr1Thread2of3ForFork0_Barrier2_#t~nondet7#1=|v_thr1Thread2of3ForFork0_Barrier2_#t~nondet7#1_5|, #race~COND~0=|v_#race~COND~0_3|} AuxVars[] AssignedVars[#race~COND~0][116], [201#L703-2true, 235#true, 233#true, 229#true, 252#true, 87#L717-2true, 115#Barrier2_returnLabel#1true, Black: 237#true, 231#true, Black: 244#(= |thr1Thread1of3ForFork0_Barrier2_#t~nondet6#1| |#race~count~0|), 199#L705-1true, 257#true, Black: 249#(= |#race~count~0| |thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1|), Black: 254#(= |#race~COND~0| 0)]) [2024-11-16 23:16:23,643 INFO L294 olderBase$Statistics]: this new event has 92 ancestors and is cut-off event [2024-11-16 23:16:23,643 INFO L297 olderBase$Statistics]: existing Event has 92 ancestors and is cut-off event [2024-11-16 23:16:23,643 INFO L297 olderBase$Statistics]: existing Event has 87 ancestors and is cut-off event [2024-11-16 23:16:23,644 INFO L297 olderBase$Statistics]: existing Event has 87 ancestors and is cut-off event [2024-11-16 23:16:23,734 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([907] L708-13-->L708-11: Formula: (and (= v_~MTX~0_122 0) (not (= (ite (= (mod v_~MTX~0_123 256) 1) 1 0) 0))) InVars {~MTX~0=v_~MTX~0_123} OutVars{thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1_7|, #race~MTX~0=|v_#race~MTX~0_153|, ~MTX~0=v_~MTX~0_122, thr1Thread2of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1=|v_thr1Thread2of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1_5|, thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1_7|} AuxVars[] AssignedVars[~MTX~0, thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1, #race~MTX~0, thr1Thread2of3ForFork0___VERIFIER_atomic_release_#t~nondet4#1, thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1][99], [201#L703-2true, 235#true, 233#true, 229#true, 252#true, 87#L717-2true, 81#L712-1true, Black: 237#true, 231#true, Black: 244#(= |thr1Thread1of3ForFork0_Barrier2_#t~nondet6#1| |#race~count~0|), 96#L708-11true, 257#true, Black: 249#(= |#race~count~0| |thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1|), Black: 254#(= |#race~COND~0| 0)]) [2024-11-16 23:16:23,734 INFO L294 olderBase$Statistics]: this new event has 91 ancestors and is cut-off event [2024-11-16 23:16:23,734 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-11-16 23:16:23,734 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2024-11-16 23:16:23,735 INFO L297 olderBase$Statistics]: existing Event has 91 ancestors and is cut-off event [2024-11-16 23:16:23,735 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([910] L705-2-->L705-1: Formula: (= |v_thr1Thread2of3ForFork0_Barrier2_#t~nondet7#1_5| |v_#race~COND~0_3|) InVars {thr1Thread2of3ForFork0_Barrier2_#t~nondet7#1=|v_thr1Thread2of3ForFork0_Barrier2_#t~nondet7#1_5|} OutVars{thr1Thread2of3ForFork0_Barrier2_#t~nondet7#1=|v_thr1Thread2of3ForFork0_Barrier2_#t~nondet7#1_5|, #race~COND~0=|v_#race~COND~0_3|} AuxVars[] AssignedVars[#race~COND~0][116], [201#L703-2true, 235#true, 233#true, 229#true, 252#true, 87#L717-2true, 81#L712-1true, Black: 237#true, 231#true, Black: 244#(= |thr1Thread1of3ForFork0_Barrier2_#t~nondet6#1| |#race~count~0|), 199#L705-1true, 257#true, Black: 249#(= |#race~count~0| |thr1Thread2of3ForFork0_Barrier2_#t~nondet6#1|), Black: 254#(= |#race~COND~0| 0)]) [2024-11-16 23:16:23,735 INFO L294 olderBase$Statistics]: this new event has 93 ancestors and is cut-off event [2024-11-16 23:16:23,735 INFO L297 olderBase$Statistics]: existing Event has 88 ancestors and is cut-off event [2024-11-16 23:16:23,735 INFO L297 olderBase$Statistics]: existing Event has 88 ancestors and is cut-off event [2024-11-16 23:16:23,735 INFO L297 olderBase$Statistics]: existing Event has 93 ancestors and is cut-off event [2024-11-16 23:16:25,668 INFO L124 PetriNetUnfolderBase]: 12286/54620 cut-off events. [2024-11-16 23:16:25,668 INFO L125 PetriNetUnfolderBase]: For 18352/20684 co-relation queries the response was YES. [2024-11-16 23:16:25,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96465 conditions, 54620 events. 12286/54620 cut-off events. For 18352/20684 co-relation queries the response was YES. Maximal size of possible extension queue 1667. Compared 834430 event pairs, 5646 based on Foata normal form. 115/47305 useless extension candidates. Maximal degree in co-relation 96454. Up to 15111 conditions per place. [2024-11-16 23:16:26,100 INFO L140 encePairwiseOnDemand]: 228/238 looper letters, 47 selfloop transitions, 16 changer transitions 0/281 dead transitions. [2024-11-16 23:16:26,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 281 transitions, 1204 flow [2024-11-16 23:16:26,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:16:26,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:16:26,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 550 transitions. [2024-11-16 23:16:26,103 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7703081232492998 [2024-11-16 23:16:26,103 INFO L175 Difference]: Start difference. First operand has 200 places, 257 transitions, 984 flow. Second operand 3 states and 550 transitions. [2024-11-16 23:16:26,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 281 transitions, 1204 flow [2024-11-16 23:16:26,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 281 transitions, 1168 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 23:16:26,215 INFO L231 Difference]: Finished difference. Result has 202 places, 271 transitions, 1106 flow [2024-11-16 23:16:26,215 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=960, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1106, PETRI_PLACES=202, PETRI_TRANSITIONS=271} [2024-11-16 23:16:26,215 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -30 predicate places. [2024-11-16 23:16:26,215 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 271 transitions, 1106 flow [2024-11-16 23:16:26,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 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) [2024-11-16 23:16:26,216 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:16:26,216 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:16:26,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 23:16:26,216 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-16 23:16:26,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:16:26,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1518866497, now seen corresponding path program 1 times [2024-11-16 23:16:26,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:16:26,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022796767] [2024-11-16 23:16:26,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:16:26,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:16:26,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:16:26,262 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-16 23:16:26,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:16:26,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022796767] [2024-11-16 23:16:26,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022796767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:16:26,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:16:26,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 23:16:26,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230421153] [2024-11-16 23:16:26,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:16:26,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:16:26,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:16:26,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:16:26,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:16:26,266 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 238 [2024-11-16 23:16:26,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 271 transitions, 1106 flow. Second operand has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 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) [2024-11-16 23:16:26,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:16:26,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 238 [2024-11-16 23:16:26,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:16:26,914 INFO L124 PetriNetUnfolderBase]: 780/5827 cut-off events. [2024-11-16 23:16:26,915 INFO L125 PetriNetUnfolderBase]: For 1622/2349 co-relation queries the response was YES. [2024-11-16 23:16:26,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9510 conditions, 5827 events. 780/5827 cut-off events. For 1622/2349 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 65567 event pairs, 191 based on Foata normal form. 189/5186 useless extension candidates. Maximal degree in co-relation 9498. Up to 710 conditions per place. [2024-11-16 23:16:26,937 INFO L140 encePairwiseOnDemand]: 226/238 looper letters, 6 selfloop transitions, 12 changer transitions 0/204 dead transitions. [2024-11-16 23:16:26,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 204 transitions, 712 flow [2024-11-16 23:16:26,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 23:16:26,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 23:16:26,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 567 transitions. [2024-11-16 23:16:26,939 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7941176470588235 [2024-11-16 23:16:26,939 INFO L175 Difference]: Start difference. First operand has 202 places, 271 transitions, 1106 flow. Second operand 3 states and 567 transitions. [2024-11-16 23:16:26,939 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 204 transitions, 712 flow [2024-11-16 23:16:26,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 204 transitions, 624 flow, removed 28 selfloop flow, removed 6 redundant places. [2024-11-16 23:16:26,947 INFO L231 Difference]: Finished difference. Result has 190 places, 202 transitions, 598 flow [2024-11-16 23:16:26,947 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=598, PETRI_PLACES=190, PETRI_TRANSITIONS=202} [2024-11-16 23:16:26,947 INFO L277 CegarLoopForPetriNet]: 232 programPoint places, -42 predicate places. [2024-11-16 23:16:26,948 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 202 transitions, 598 flow [2024-11-16 23:16:26,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 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) [2024-11-16 23:16:26,948 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:16:26,948 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:16:26,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 23:16:26,948 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2024-11-16 23:16:26,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:16:26,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1514247961, now seen corresponding path program 1 times [2024-11-16 23:16:26,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:16:26,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120336537] [2024-11-16 23:16:26,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:16:26,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:16:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:16:26,955 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 23:16:26,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 23:16:26,967 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 23:16:26,967 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 23:16:26,967 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (60 of 61 remaining) [2024-11-16 23:16:26,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (59 of 61 remaining) [2024-11-16 23:16:26,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (58 of 61 remaining) [2024-11-16 23:16:26,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (57 of 61 remaining) [2024-11-16 23:16:26,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (56 of 61 remaining) [2024-11-16 23:16:26,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (55 of 61 remaining) [2024-11-16 23:16:26,968 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (54 of 61 remaining) [2024-11-16 23:16:26,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (53 of 61 remaining) [2024-11-16 23:16:26,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (52 of 61 remaining) [2024-11-16 23:16:26,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (51 of 61 remaining) [2024-11-16 23:16:26,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (50 of 61 remaining) [2024-11-16 23:16:26,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (49 of 61 remaining) [2024-11-16 23:16:26,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (48 of 61 remaining) [2024-11-16 23:16:26,969 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 61 remaining) [2024-11-16 23:16:26,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (46 of 61 remaining) [2024-11-16 23:16:26,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 61 remaining) [2024-11-16 23:16:26,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (44 of 61 remaining) [2024-11-16 23:16:26,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (43 of 61 remaining) [2024-11-16 23:16:26,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (42 of 61 remaining) [2024-11-16 23:16:26,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (41 of 61 remaining) [2024-11-16 23:16:26,970 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (40 of 61 remaining) [2024-11-16 23:16:26,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (39 of 61 remaining) [2024-11-16 23:16:26,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (38 of 61 remaining) [2024-11-16 23:16:26,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 61 remaining) [2024-11-16 23:16:26,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (36 of 61 remaining) [2024-11-16 23:16:26,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (35 of 61 remaining) [2024-11-16 23:16:26,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (34 of 61 remaining) [2024-11-16 23:16:26,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (33 of 61 remaining) [2024-11-16 23:16:26,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (32 of 61 remaining) [2024-11-16 23:16:26,971 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (31 of 61 remaining) [2024-11-16 23:16:26,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (30 of 61 remaining) [2024-11-16 23:16:26,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (29 of 61 remaining) [2024-11-16 23:16:26,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (28 of 61 remaining) [2024-11-16 23:16:26,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (27 of 61 remaining) [2024-11-16 23:16:26,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (26 of 61 remaining) [2024-11-16 23:16:26,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (25 of 61 remaining) [2024-11-16 23:16:26,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (24 of 61 remaining) [2024-11-16 23:16:26,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 61 remaining) [2024-11-16 23:16:26,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (22 of 61 remaining) [2024-11-16 23:16:26,972 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 61 remaining) [2024-11-16 23:16:26,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 61 remaining) [2024-11-16 23:16:26,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 61 remaining) [2024-11-16 23:16:26,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 61 remaining) [2024-11-16 23:16:26,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 61 remaining) [2024-11-16 23:16:26,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (16 of 61 remaining) [2024-11-16 23:16:26,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 61 remaining) [2024-11-16 23:16:26,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 61 remaining) [2024-11-16 23:16:26,973 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 61 remaining) [2024-11-16 23:16:26,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (12 of 61 remaining) [2024-11-16 23:16:26,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (11 of 61 remaining) [2024-11-16 23:16:26,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (10 of 61 remaining) [2024-11-16 23:16:26,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 61 remaining) [2024-11-16 23:16:26,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (8 of 61 remaining) [2024-11-16 23:16:26,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (7 of 61 remaining) [2024-11-16 23:16:26,974 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 61 remaining) [2024-11-16 23:16:26,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (5 of 61 remaining) [2024-11-16 23:16:26,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 61 remaining) [2024-11-16 23:16:26,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (3 of 61 remaining) [2024-11-16 23:16:26,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 61 remaining) [2024-11-16 23:16:26,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 61 remaining) [2024-11-16 23:16:26,975 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 61 remaining) [2024-11-16 23:16:26,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 23:16:26,975 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 23:16:26,976 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-16 23:16:26,977 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-16 23:16:27,008 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 23:16:27,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 301 places, 309 transitions, 646 flow [2024-11-16 23:16:27,039 INFO L124 PetriNetUnfolderBase]: 21/355 cut-off events. [2024-11-16 23:16:27,039 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-16 23:16:27,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374 conditions, 355 events. 21/355 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1364 event pairs, 0 based on Foata normal form. 0/269 useless extension candidates. Maximal degree in co-relation 292. Up to 10 conditions per place. [2024-11-16 23:16:27,042 INFO L82 GeneralOperation]: Start removeDead. Operand has 301 places, 309 transitions, 646 flow [2024-11-16 23:16:27,047 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 301 places, 309 transitions, 646 flow [2024-11-16 23:16:27,047 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 23:16:27,048 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;@17389bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 23:16:27,048 INFO L334 AbstractCegarLoop]: Starting to check reachability of 76 error locations. [2024-11-16 23:16:27,049 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 23:16:27,049 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2024-11-16 23:16:27,049 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 23:16:27,049 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:16:27,049 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] [2024-11-16 23:16:27,049 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err14ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2024-11-16 23:16:27,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:16:27,050 INFO L85 PathProgramCache]: Analyzing trace with hash 174764173, now seen corresponding path program 1 times [2024-11-16 23:16:27,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:16:27,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564991912] [2024-11-16 23:16:27,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:16:27,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:16:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:16:27,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:16:27,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:16:27,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564991912] [2024-11-16 23:16:27,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564991912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:16:27,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:16:27,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 23:16:27,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65929169] [2024-11-16 23:16:27,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:16:27,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 23:16:27,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:16:27,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 23:16:27,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 23:16:27,059 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 309 [2024-11-16 23:16:27,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 309 transitions, 646 flow. Second operand has 2 states, 2 states have (on average 236.0) internal successors, (472), 2 states have internal predecessors, (472), 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) [2024-11-16 23:16:27,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:16:27,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 309 [2024-11-16 23:16:27,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 23:16:27,805 INFO L124 PetriNetUnfolderBase]: 1933/8612 cut-off events. [2024-11-16 23:16:27,805 INFO L125 PetriNetUnfolderBase]: For 1169/1169 co-relation queries the response was YES. [2024-11-16 23:16:27,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11817 conditions, 8612 events. 1933/8612 cut-off events. For 1169/1169 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 94725 event pairs, 1329 based on Foata normal form. 3271/10499 useless extension candidates. Maximal degree in co-relation 8859. Up to 2591 conditions per place. [2024-11-16 23:16:27,864 INFO L140 encePairwiseOnDemand]: 259/309 looper letters, 20 selfloop transitions, 0 changer transitions 0/240 dead transitions. [2024-11-16 23:16:27,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 240 transitions, 548 flow [2024-11-16 23:16:27,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 23:16:27,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 23:16:27,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 540 transitions. [2024-11-16 23:16:27,866 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8737864077669902 [2024-11-16 23:16:27,866 INFO L175 Difference]: Start difference. First operand has 301 places, 309 transitions, 646 flow. Second operand 2 states and 540 transitions. [2024-11-16 23:16:27,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 240 transitions, 548 flow [2024-11-16 23:16:27,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 240 transitions, 542 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-16 23:16:27,869 INFO L231 Difference]: Finished difference. Result has 246 places, 240 transitions, 502 flow [2024-11-16 23:16:27,869 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=309, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=502, PETRI_PLACES=246, PETRI_TRANSITIONS=240} [2024-11-16 23:16:27,870 INFO L277 CegarLoopForPetriNet]: 301 programPoint places, -55 predicate places. [2024-11-16 23:16:27,870 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 240 transitions, 502 flow [2024-11-16 23:16:27,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 236.0) internal successors, (472), 2 states have internal predecessors, (472), 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) [2024-11-16 23:16:27,870 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 23:16:27,870 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] [2024-11-16 23:16:27,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 23:16:27,871 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err12ASSERT_VIOLATIONDATA_RACE, thr1Err11ASSERT_VIOLATIONDATA_RACE (and 72 more)] === [2024-11-16 23:16:27,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 23:16:27,871 INFO L85 PathProgramCache]: Analyzing trace with hash 444685937, now seen corresponding path program 1 times [2024-11-16 23:16:27,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 23:16:27,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838538148] [2024-11-16 23:16:27,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 23:16:27,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 23:16:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 23:16:27,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 23:16:27,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 23:16:27,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838538148] [2024-11-16 23:16:27,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838538148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 23:16:27,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 23:16:27,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 23:16:27,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514283251] [2024-11-16 23:16:27,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 23:16:27,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 23:16:27,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 23:16:27,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 23:16:27,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 23:16:27,927 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 309 [2024-11-16 23:16:27,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 240 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 204.33333333333334) internal successors, (613), 3 states have internal predecessors, (613), 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) [2024-11-16 23:16:27,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 23:16:27,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 309 [2024-11-16 23:16:27,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand