./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing-2.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 3465c34fa1c26a5c7a3494350123ab41e5828c33cb08ac3f67b81737d460e559 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 05:54:10,923 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 05:54:10,974 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-19 05:54:10,978 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 05:54:10,978 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 05:54:11,004 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 05:54:11,005 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 05:54:11,005 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 05:54:11,006 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 05:54:11,006 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 05:54:11,007 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 05:54:11,007 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 05:54:11,007 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 05:54:11,008 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 05:54:11,008 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 05:54:11,009 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 05:54:11,009 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 05:54:11,009 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 05:54:11,010 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 05:54:11,010 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 05:54:11,010 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 05:54:11,011 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 05:54:11,011 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-19 05:54:11,015 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 05:54:11,015 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 05:54:11,015 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 05:54:11,015 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 05:54:11,016 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 05:54:11,016 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 05:54:11,016 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 05:54:11,017 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 05:54:11,017 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:54:11,017 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 05:54:11,018 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 05:54:11,018 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 05:54:11,021 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 05:54:11,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 05:54:11,022 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 05:54:11,022 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 05:54:11,022 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 05:54:11,022 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 05:54:11,023 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3465c34fa1c26a5c7a3494350123ab41e5828c33cb08ac3f67b81737d460e559 [2024-11-19 05:54:11,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 05:54:11,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 05:54:11,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 05:54:11,304 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 05:54:11,305 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 05:54:11,306 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing-2.i [2024-11-19 05:54:12,853 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 05:54:13,094 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 05:54:13,094 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_61-invariant_racing-2.i [2024-11-19 05:54:13,108 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ef0ede52/b3ae5609b1654d4db3b1236ca052186a/FLAG5492c9fbe [2024-11-19 05:54:13,122 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ef0ede52/b3ae5609b1654d4db3b1236ca052186a [2024-11-19 05:54:13,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 05:54:13,126 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 05:54:13,127 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 05:54:13,127 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 05:54:13,134 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 05:54:13,135 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:54:13" (1/1) ... [2024-11-19 05:54:13,138 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6af650e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:13, skipping insertion in model container [2024-11-19 05:54:13,138 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:54:13" (1/1) ... [2024-11-19 05:54:13,182 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 05:54:13,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:54:13,654 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 05:54:13,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 05:54:13,760 INFO L204 MainTranslator]: Completed translation [2024-11-19 05:54:13,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:13 WrapperNode [2024-11-19 05:54:13,761 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 05:54:13,762 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 05:54:13,762 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 05:54:13,762 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 05:54:13,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:13" (1/1) ... [2024-11-19 05:54:13,790 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:13" (1/1) ... [2024-11-19 05:54:13,822 INFO L138 Inliner]: procedures = 171, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 133 [2024-11-19 05:54:13,822 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 05:54:13,823 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 05:54:13,823 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 05:54:13,824 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 05:54:13,832 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:13" (1/1) ... [2024-11-19 05:54:13,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:13" (1/1) ... [2024-11-19 05:54:13,836 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:13" (1/1) ... [2024-11-19 05:54:13,836 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:13" (1/1) ... [2024-11-19 05:54:13,844 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:13" (1/1) ... [2024-11-19 05:54:13,852 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:13" (1/1) ... [2024-11-19 05:54:13,857 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:13" (1/1) ... [2024-11-19 05:54:13,858 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:13" (1/1) ... [2024-11-19 05:54:13,864 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 05:54:13,865 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 05:54:13,865 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 05:54:13,865 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 05:54:13,866 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:13" (1/1) ... [2024-11-19 05:54:13,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 05:54:13,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:54:13,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 05:54:13,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 05:54:13,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 05:54:13,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 05:54:13,961 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 05:54:13,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 05:54:13,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 05:54:13,961 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-19 05:54:13,961 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-19 05:54:13,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 05:54:13,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 05:54:13,962 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 05:54:13,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 05:54:13,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 05:54:13,963 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 05:54:14,119 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 05:54:14,122 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 05:54:14,454 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 05:54:14,455 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 05:54:14,511 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 05:54:14,512 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-19 05:54:14,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:54:14 BoogieIcfgContainer [2024-11-19 05:54:14,512 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 05:54:14,514 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 05:54:14,514 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 05:54:14,518 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 05:54:14,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:54:13" (1/3) ... [2024-11-19 05:54:14,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3086ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:54:14, skipping insertion in model container [2024-11-19 05:54:14,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:54:13" (2/3) ... [2024-11-19 05:54:14,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3086ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:54:14, skipping insertion in model container [2024-11-19 05:54:14,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:54:14" (3/3) ... [2024-11-19 05:54:14,521 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_61-invariant_racing-2.i [2024-11-19 05:54:14,534 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 05:54:14,534 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-19 05:54:14,535 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 05:54:14,621 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-19 05:54:14,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 170 places, 187 transitions, 381 flow [2024-11-19 05:54:14,781 INFO L124 PetriNetUnfolderBase]: 32/286 cut-off events. [2024-11-19 05:54:14,781 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-19 05:54:14,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 286 events. 32/286 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1119 event pairs, 0 based on Foata normal form. 0/232 useless extension candidates. Maximal degree in co-relation 156. Up to 6 conditions per place. [2024-11-19 05:54:14,792 INFO L82 GeneralOperation]: Start removeDead. Operand has 170 places, 187 transitions, 381 flow [2024-11-19 05:54:14,799 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 170 places, 187 transitions, 381 flow [2024-11-19 05:54:14,815 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:54:14,823 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;@6861ed1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:54:14,824 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-19 05:54:14,841 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:54:14,841 INFO L124 PetriNetUnfolderBase]: 3/53 cut-off events. [2024-11-19 05:54:14,841 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:54:14,841 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:14,843 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:14,845 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-19 05:54:14,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:14,851 INFO L85 PathProgramCache]: Analyzing trace with hash 232964393, now seen corresponding path program 1 times [2024-11-19 05:54:14,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:14,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023128190] [2024-11-19 05:54:14,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:14,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:15,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:15,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:15,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:15,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023128190] [2024-11-19 05:54:15,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023128190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:15,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:15,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:54:15,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432277117] [2024-11-19 05:54:15,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:15,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:15,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:15,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:15,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:15,278 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 187 [2024-11-19 05:54:15,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 187 transitions, 381 flow. Second operand has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:15,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:15,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 187 [2024-11-19 05:54:15,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:15,532 INFO L124 PetriNetUnfolderBase]: 85/894 cut-off events. [2024-11-19 05:54:15,533 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 05:54:15,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1092 conditions, 894 events. 85/894 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5283 event pairs, 0 based on Foata normal form. 118/923 useless extension candidates. Maximal degree in co-relation 1016. Up to 184 conditions per place. [2024-11-19 05:54:15,546 INFO L140 encePairwiseOnDemand]: 166/187 looper letters, 28 selfloop transitions, 2 changer transitions 0/174 dead transitions. [2024-11-19 05:54:15,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 174 transitions, 415 flow [2024-11-19 05:54:15,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:15,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:15,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 491 transitions. [2024-11-19 05:54:15,567 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.875222816399287 [2024-11-19 05:54:15,570 INFO L175 Difference]: Start difference. First operand has 170 places, 187 transitions, 381 flow. Second operand 3 states and 491 transitions. [2024-11-19 05:54:15,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 174 transitions, 415 flow [2024-11-19 05:54:15,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 174 transitions, 415 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:54:15,580 INFO L231 Difference]: Finished difference. Result has 171 places, 167 transitions, 349 flow [2024-11-19 05:54:15,583 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=349, PETRI_PLACES=171, PETRI_TRANSITIONS=167} [2024-11-19 05:54:15,589 INFO L277 CegarLoopForPetriNet]: 170 programPoint places, 1 predicate places. [2024-11-19 05:54:15,589 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 167 transitions, 349 flow [2024-11-19 05:54:15,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.66666666666666) internal successors, (440), 3 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:15,590 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:15,590 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:15,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 05:54:15,591 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-19 05:54:15,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:15,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1422501814, now seen corresponding path program 1 times [2024-11-19 05:54:15,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:15,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926603580] [2024-11-19 05:54:15,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:15,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:15,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:16,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:16,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:16,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926603580] [2024-11-19 05:54:16,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926603580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:16,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:16,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:54:16,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729960090] [2024-11-19 05:54:16,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:16,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:54:16,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:16,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:54:16,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:54:16,400 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 187 [2024-11-19 05:54:16,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 167 transitions, 349 flow. Second operand has 6 states, 6 states have (on average 134.5) internal successors, (807), 6 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:16,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:16,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 187 [2024-11-19 05:54:16,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:16,656 INFO L124 PetriNetUnfolderBase]: 157/1045 cut-off events. [2024-11-19 05:54:16,657 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-19 05:54:16,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1426 conditions, 1045 events. 157/1045 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6670 event pairs, 102 based on Foata normal form. 0/953 useless extension candidates. Maximal degree in co-relation 1340. Up to 267 conditions per place. [2024-11-19 05:54:16,666 INFO L140 encePairwiseOnDemand]: 181/187 looper letters, 57 selfloop transitions, 5 changer transitions 0/194 dead transitions. [2024-11-19 05:54:16,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 194 transitions, 527 flow [2024-11-19 05:54:16,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:54:16,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:54:16,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 861 transitions. [2024-11-19 05:54:16,669 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.767379679144385 [2024-11-19 05:54:16,670 INFO L175 Difference]: Start difference. First operand has 171 places, 167 transitions, 349 flow. Second operand 6 states and 861 transitions. [2024-11-19 05:54:16,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 194 transitions, 527 flow [2024-11-19 05:54:16,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 194 transitions, 523 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:54:16,677 INFO L231 Difference]: Finished difference. Result has 173 places, 166 transitions, 353 flow [2024-11-19 05:54:16,679 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=353, PETRI_PLACES=173, PETRI_TRANSITIONS=166} [2024-11-19 05:54:16,680 INFO L277 CegarLoopForPetriNet]: 170 programPoint places, 3 predicate places. [2024-11-19 05:54:16,680 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 166 transitions, 353 flow [2024-11-19 05:54:16,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 134.5) internal successors, (807), 6 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:16,681 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:16,681 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:16,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 05:54:16,681 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-19 05:54:16,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:16,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1991920438, now seen corresponding path program 1 times [2024-11-19 05:54:16,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:16,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387885488] [2024-11-19 05:54:16,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:16,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:16,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:16,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:16,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387885488] [2024-11-19 05:54:16,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387885488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:16,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:16,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:54:16,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840463143] [2024-11-19 05:54:16,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:16,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:16,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:16,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:16,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:16,794 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 187 [2024-11-19 05:54:16,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 166 transitions, 353 flow. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:16,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:16,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 187 [2024-11-19 05:54:16,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:17,117 INFO L124 PetriNetUnfolderBase]: 361/2125 cut-off events. [2024-11-19 05:54:17,117 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-19 05:54:17,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2944 conditions, 2125 events. 361/2125 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 15804 event pairs, 136 based on Foata normal form. 0/1923 useless extension candidates. Maximal degree in co-relation 2882. Up to 462 conditions per place. [2024-11-19 05:54:17,130 INFO L140 encePairwiseOnDemand]: 165/187 looper letters, 55 selfloop transitions, 16 changer transitions 0/198 dead transitions. [2024-11-19 05:54:17,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 198 transitions, 562 flow [2024-11-19 05:54:17,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:17,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:17,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 464 transitions. [2024-11-19 05:54:17,132 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8270944741532977 [2024-11-19 05:54:17,132 INFO L175 Difference]: Start difference. First operand has 173 places, 166 transitions, 353 flow. Second operand 3 states and 464 transitions. [2024-11-19 05:54:17,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 198 transitions, 562 flow [2024-11-19 05:54:17,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 198 transitions, 552 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 05:54:17,138 INFO L231 Difference]: Finished difference. Result has 172 places, 182 transitions, 483 flow [2024-11-19 05:54:17,139 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=187, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=483, PETRI_PLACES=172, PETRI_TRANSITIONS=182} [2024-11-19 05:54:17,140 INFO L277 CegarLoopForPetriNet]: 170 programPoint places, 2 predicate places. [2024-11-19 05:54:17,140 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 182 transitions, 483 flow [2024-11-19 05:54:17,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:17,141 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:17,142 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:17,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 05:54:17,142 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-19 05:54:17,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:17,144 INFO L85 PathProgramCache]: Analyzing trace with hash 361355840, now seen corresponding path program 1 times [2024-11-19 05:54:17,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:17,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529112022] [2024-11-19 05:54:17,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:17,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:54:17,178 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 05:54:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:54:17,221 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 05:54:17,221 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 05:54:17,222 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-19 05:54:17,224 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-19 05:54:17,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-19 05:54:17,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-19 05:54:17,225 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-19 05:54:17,228 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-19 05:54:17,228 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-19 05:54:17,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-19 05:54:17,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-19 05:54:17,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-19 05:54:17,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-19 05:54:17,229 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-19 05:54:17,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-19 05:54:17,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-19 05:54:17,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-19 05:54:17,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-19 05:54:17,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-19 05:54:17,230 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-19 05:54:17,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 05:54:17,231 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-19 05:54:17,235 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 05:54:17,236 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-19 05:54:17,276 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-19 05:54:17,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 220 places, 243 transitions, 502 flow [2024-11-19 05:54:17,333 INFO L124 PetriNetUnfolderBase]: 54/469 cut-off events. [2024-11-19 05:54:17,334 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-19 05:54:17,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 481 conditions, 469 events. 54/469 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2058 event pairs, 0 based on Foata normal form. 0/379 useless extension candidates. Maximal degree in co-relation 288. Up to 9 conditions per place. [2024-11-19 05:54:17,340 INFO L82 GeneralOperation]: Start removeDead. Operand has 220 places, 243 transitions, 502 flow [2024-11-19 05:54:17,345 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 220 places, 243 transitions, 502 flow [2024-11-19 05:54:17,349 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:54:17,352 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;@6861ed1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:54:17,352 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-19 05:54:17,358 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:54:17,359 INFO L124 PetriNetUnfolderBase]: 3/53 cut-off events. [2024-11-19 05:54:17,359 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:54:17,360 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:17,360 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:17,360 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-19 05:54:17,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:17,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1133942999, now seen corresponding path program 1 times [2024-11-19 05:54:17,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:17,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74303426] [2024-11-19 05:54:17,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:17,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:17,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:17,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:17,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74303426] [2024-11-19 05:54:17,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74303426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:17,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:17,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:54:17,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097344628] [2024-11-19 05:54:17,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:17,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:17,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:17,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:17,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:17,423 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 243 [2024-11-19 05:54:17,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 243 transitions, 502 flow. Second operand has 3 states, 3 states have (on average 187.66666666666666) internal successors, (563), 3 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:17,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:17,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 243 [2024-11-19 05:54:17,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:18,417 INFO L124 PetriNetUnfolderBase]: 1621/8070 cut-off events. [2024-11-19 05:54:18,417 INFO L125 PetriNetUnfolderBase]: For 87/91 co-relation queries the response was YES. [2024-11-19 05:54:18,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10588 conditions, 8070 events. 1621/8070 cut-off events. For 87/91 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 85393 event pairs, 686 based on Foata normal form. 1417/8554 useless extension candidates. Maximal degree in co-relation 1403. Up to 2462 conditions per place. [2024-11-19 05:54:18,475 INFO L140 encePairwiseOnDemand]: 216/243 looper letters, 38 selfloop transitions, 2 changer transitions 0/225 dead transitions. [2024-11-19 05:54:18,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 225 transitions, 546 flow [2024-11-19 05:54:18,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:18,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:18,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 630 transitions. [2024-11-19 05:54:18,478 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8641975308641975 [2024-11-19 05:54:18,478 INFO L175 Difference]: Start difference. First operand has 220 places, 243 transitions, 502 flow. Second operand 3 states and 630 transitions. [2024-11-19 05:54:18,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 225 transitions, 546 flow [2024-11-19 05:54:18,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 225 transitions, 546 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:54:18,484 INFO L231 Difference]: Finished difference. Result has 221 places, 218 transitions, 462 flow [2024-11-19 05:54:18,484 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=243, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=462, PETRI_PLACES=221, PETRI_TRANSITIONS=218} [2024-11-19 05:54:18,485 INFO L277 CegarLoopForPetriNet]: 220 programPoint places, 1 predicate places. [2024-11-19 05:54:18,485 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 218 transitions, 462 flow [2024-11-19 05:54:18,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 187.66666666666666) internal successors, (563), 3 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:18,486 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:18,486 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:18,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 05:54:18,487 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-19 05:54:18,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:18,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1919525085, now seen corresponding path program 1 times [2024-11-19 05:54:18,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:18,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786520618] [2024-11-19 05:54:18,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:18,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:18,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:18,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:18,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786520618] [2024-11-19 05:54:18,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786520618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:18,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:18,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:54:18,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071738158] [2024-11-19 05:54:18,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:18,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:54:18,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:18,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:54:18,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:54:18,994 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 174 out of 243 [2024-11-19 05:54:18,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 218 transitions, 462 flow. Second operand has 6 states, 6 states have (on average 175.5) internal successors, (1053), 6 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:18,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:18,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 174 of 243 [2024-11-19 05:54:18,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:20,354 INFO L124 PetriNetUnfolderBase]: 2772/10322 cut-off events. [2024-11-19 05:54:20,355 INFO L125 PetriNetUnfolderBase]: For 181/181 co-relation queries the response was YES. [2024-11-19 05:54:20,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14950 conditions, 10322 events. 2772/10322 cut-off events. For 181/181 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 109588 event pairs, 1354 based on Foata normal form. 0/9439 useless extension candidates. Maximal degree in co-relation 7517. Up to 3388 conditions per place. [2024-11-19 05:54:20,431 INFO L140 encePairwiseOnDemand]: 237/243 looper letters, 94 selfloop transitions, 6 changer transitions 0/273 dead transitions. [2024-11-19 05:54:20,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 273 transitions, 772 flow [2024-11-19 05:54:20,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 05:54:20,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 05:54:20,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1144 transitions. [2024-11-19 05:54:20,435 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7846364883401921 [2024-11-19 05:54:20,435 INFO L175 Difference]: Start difference. First operand has 221 places, 218 transitions, 462 flow. Second operand 6 states and 1144 transitions. [2024-11-19 05:54:20,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 273 transitions, 772 flow [2024-11-19 05:54:20,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 273 transitions, 770 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 05:54:20,441 INFO L231 Difference]: Finished difference. Result has 224 places, 217 transitions, 470 flow [2024-11-19 05:54:20,441 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=243, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=470, PETRI_PLACES=224, PETRI_TRANSITIONS=217} [2024-11-19 05:54:20,442 INFO L277 CegarLoopForPetriNet]: 220 programPoint places, 4 predicate places. [2024-11-19 05:54:20,442 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 217 transitions, 470 flow [2024-11-19 05:54:20,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.5) internal successors, (1053), 6 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:20,443 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:20,443 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:20,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 05:54:20,444 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-19 05:54:20,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:20,445 INFO L85 PathProgramCache]: Analyzing trace with hash -181576141, now seen corresponding path program 1 times [2024-11-19 05:54:20,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:20,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2274860] [2024-11-19 05:54:20,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:20,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:20,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:20,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:20,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2274860] [2024-11-19 05:54:20,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2274860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:20,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:20,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 05:54:20,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510682680] [2024-11-19 05:54:20,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:20,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:20,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:20,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:20,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:20,541 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 243 [2024-11-19 05:54:20,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 217 transitions, 470 flow. Second operand has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:20,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:20,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 243 [2024-11-19 05:54:20,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:25,793 INFO L124 PetriNetUnfolderBase]: 17343/55534 cut-off events. [2024-11-19 05:54:25,795 INFO L125 PetriNetUnfolderBase]: For 450/450 co-relation queries the response was YES. [2024-11-19 05:54:25,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83718 conditions, 55534 events. 17343/55534 cut-off events. For 450/450 co-relation queries the response was YES. Maximal size of possible extension queue 976. Compared 710630 event pairs, 6436 based on Foata normal form. 0/49625 useless extension candidates. Maximal degree in co-relation 69220. Up to 16484 conditions per place. [2024-11-19 05:54:26,156 INFO L140 encePairwiseOnDemand]: 210/243 looper letters, 84 selfloop transitions, 24 changer transitions 0/266 dead transitions. [2024-11-19 05:54:26,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 266 transitions, 795 flow [2024-11-19 05:54:26,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:26,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:26,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 594 transitions. [2024-11-19 05:54:26,160 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8148148148148148 [2024-11-19 05:54:26,160 INFO L175 Difference]: Start difference. First operand has 224 places, 217 transitions, 470 flow. Second operand 3 states and 594 transitions. [2024-11-19 05:54:26,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 266 transitions, 795 flow [2024-11-19 05:54:26,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 266 transitions, 783 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-19 05:54:26,168 INFO L231 Difference]: Finished difference. Result has 223 places, 241 transitions, 668 flow [2024-11-19 05:54:26,169 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=243, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=668, PETRI_PLACES=223, PETRI_TRANSITIONS=241} [2024-11-19 05:54:26,170 INFO L277 CegarLoopForPetriNet]: 220 programPoint places, 3 predicate places. [2024-11-19 05:54:26,172 INFO L471 AbstractCegarLoop]: Abstraction has has 223 places, 241 transitions, 668 flow [2024-11-19 05:54:26,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:26,173 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:26,173 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:26,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 05:54:26,173 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-19 05:54:26,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:26,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1992323094, now seen corresponding path program 1 times [2024-11-19 05:54:26,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:26,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078749429] [2024-11-19 05:54:26,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:26,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:26,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:26,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:26,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078749429] [2024-11-19 05:54:26,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078749429] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:54:26,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517778646] [2024-11-19 05:54:26,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:26,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:54:26,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:54:26,259 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:54:26,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 05:54:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:26,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 05:54:26,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:54:26,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 05:54:26,368 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 05:54:26,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517778646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:26,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 05:54:26,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-19 05:54:26,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275290536] [2024-11-19 05:54:26,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:26,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:26,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:26,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:26,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:54:26,466 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 243 [2024-11-19 05:54:26,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 241 transitions, 668 flow. Second operand has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:26,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:26,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 243 [2024-11-19 05:54:26,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:32,488 INFO L124 PetriNetUnfolderBase]: 17695/61067 cut-off events. [2024-11-19 05:54:32,488 INFO L125 PetriNetUnfolderBase]: For 21211/22220 co-relation queries the response was YES. [2024-11-19 05:54:32,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109427 conditions, 61067 events. 17695/61067 cut-off events. For 21211/22220 co-relation queries the response was YES. Maximal size of possible extension queue 1085. Compared 811365 event pairs, 10523 based on Foata normal form. 203/55483 useless extension candidates. Maximal degree in co-relation 105670. Up to 24221 conditions per place. [2024-11-19 05:54:32,907 INFO L140 encePairwiseOnDemand]: 229/243 looper letters, 74 selfloop transitions, 24 changer transitions 0/277 dead transitions. [2024-11-19 05:54:32,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 277 transitions, 996 flow [2024-11-19 05:54:32,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:32,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:32,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 587 transitions. [2024-11-19 05:54:32,915 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8052126200274349 [2024-11-19 05:54:32,915 INFO L175 Difference]: Start difference. First operand has 223 places, 241 transitions, 668 flow. Second operand 3 states and 587 transitions. [2024-11-19 05:54:32,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 277 transitions, 996 flow [2024-11-19 05:54:32,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 277 transitions, 928 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:54:32,989 INFO L231 Difference]: Finished difference. Result has 225 places, 263 transitions, 846 flow [2024-11-19 05:54:32,990 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=243, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=241, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=846, PETRI_PLACES=225, PETRI_TRANSITIONS=263} [2024-11-19 05:54:32,991 INFO L277 CegarLoopForPetriNet]: 220 programPoint places, 5 predicate places. [2024-11-19 05:54:32,992 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 263 transitions, 846 flow [2024-11-19 05:54:32,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:32,995 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:32,995 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:33,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 05:54:33,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:54:33,196 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-19 05:54:33,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:33,197 INFO L85 PathProgramCache]: Analyzing trace with hash -2093193768, now seen corresponding path program 1 times [2024-11-19 05:54:33,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:33,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473379657] [2024-11-19 05:54:33,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:33,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:33,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:33,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:33,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473379657] [2024-11-19 05:54:33,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473379657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:33,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:33,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:54:33,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514622306] [2024-11-19 05:54:33,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:33,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:33,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:33,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:33,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:33,272 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 243 [2024-11-19 05:54:33,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 263 transitions, 846 flow. Second operand has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:33,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:33,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 243 [2024-11-19 05:54:33,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:38,855 INFO L124 PetriNetUnfolderBase]: 16140/60555 cut-off events. [2024-11-19 05:54:38,855 INFO L125 PetriNetUnfolderBase]: For 8784/10564 co-relation queries the response was YES. [2024-11-19 05:54:39,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99939 conditions, 60555 events. 16140/60555 cut-off events. For 8784/10564 co-relation queries the response was YES. Maximal size of possible extension queue 1179. Compared 834422 event pairs, 7870 based on Foata normal form. 193/53440 useless extension candidates. Maximal degree in co-relation 96792. Up to 14917 conditions per place. [2024-11-19 05:54:39,494 INFO L140 encePairwiseOnDemand]: 232/243 looper letters, 58 selfloop transitions, 9 changer transitions 0/291 dead transitions. [2024-11-19 05:54:39,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 291 transitions, 1038 flow [2024-11-19 05:54:39,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:39,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:39,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 612 transitions. [2024-11-19 05:54:39,497 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8395061728395061 [2024-11-19 05:54:39,498 INFO L175 Difference]: Start difference. First operand has 225 places, 263 transitions, 846 flow. Second operand 3 states and 612 transitions. [2024-11-19 05:54:39,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 291 transitions, 1038 flow [2024-11-19 05:54:39,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 291 transitions, 990 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 05:54:39,530 INFO L231 Difference]: Finished difference. Result has 226 places, 268 transitions, 858 flow [2024-11-19 05:54:39,531 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=243, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=252, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=858, PETRI_PLACES=226, PETRI_TRANSITIONS=268} [2024-11-19 05:54:39,531 INFO L277 CegarLoopForPetriNet]: 220 programPoint places, 6 predicate places. [2024-11-19 05:54:39,533 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 268 transitions, 858 flow [2024-11-19 05:54:39,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:39,533 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:39,533 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:39,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 05:54:39,534 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-19 05:54:39,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:39,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1591984925, now seen corresponding path program 1 times [2024-11-19 05:54:39,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:39,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109364323] [2024-11-19 05:54:39,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:39,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:39,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:39,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:39,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109364323] [2024-11-19 05:54:39,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109364323] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 05:54:39,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053462228] [2024-11-19 05:54:39,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:39,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 05:54:39,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 05:54:39,633 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 05:54:39,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 05:54:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:39,724 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 05:54:39,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 05:54:39,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:39,798 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 05:54:39,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:39,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053462228] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 05:54:39,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 05:54:39,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-19 05:54:39,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428168506] [2024-11-19 05:54:39,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 05:54:39,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 05:54:39,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:39,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 05:54:39,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 05:54:39,930 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 243 [2024-11-19 05:54:39,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 268 transitions, 858 flow. Second operand has 10 states, 10 states have (on average 185.3) internal successors, (1853), 10 states have internal predecessors, (1853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:39,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:39,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 243 [2024-11-19 05:54:39,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:40,040 INFO L124 PetriNetUnfolderBase]: 87/416 cut-off events. [2024-11-19 05:54:40,041 INFO L125 PetriNetUnfolderBase]: For 37/40 co-relation queries the response was YES. [2024-11-19 05:54:40,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 416 events. 87/416 cut-off events. For 37/40 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2075 event pairs, 3 based on Foata normal form. 16/422 useless extension candidates. Maximal degree in co-relation 630. Up to 60 conditions per place. [2024-11-19 05:54:40,042 INFO L140 encePairwiseOnDemand]: 238/243 looper letters, 28 selfloop transitions, 7 changer transitions 0/86 dead transitions. [2024-11-19 05:54:40,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 86 transitions, 286 flow [2024-11-19 05:54:40,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 05:54:40,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 05:54:40,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1684 transitions. [2024-11-19 05:54:40,047 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7700045724737082 [2024-11-19 05:54:40,047 INFO L175 Difference]: Start difference. First operand has 226 places, 268 transitions, 858 flow. Second operand 9 states and 1684 transitions. [2024-11-19 05:54:40,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 86 transitions, 286 flow [2024-11-19 05:54:40,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 86 transitions, 276 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-19 05:54:40,049 INFO L231 Difference]: Finished difference. Result has 80 places, 66 transitions, 180 flow [2024-11-19 05:54:40,050 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=243, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=180, PETRI_PLACES=80, PETRI_TRANSITIONS=66} [2024-11-19 05:54:40,051 INFO L277 CegarLoopForPetriNet]: 220 programPoint places, -140 predicate places. [2024-11-19 05:54:40,052 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 66 transitions, 180 flow [2024-11-19 05:54:40,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 185.3) internal successors, (1853), 10 states have internal predecessors, (1853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:40,053 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:40,054 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:40,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 05:54:40,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-19 05:54:40,255 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-19 05:54:40,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:40,255 INFO L85 PathProgramCache]: Analyzing trace with hash -373444778, now seen corresponding path program 1 times [2024-11-19 05:54:40,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:40,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710922556] [2024-11-19 05:54:40,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:40,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:54:40,291 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-19 05:54:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-19 05:54:40,313 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-19 05:54:40,313 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-19 05:54:40,313 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-19 05:54:40,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2024-11-19 05:54:40,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2024-11-19 05:54:40,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2024-11-19 05:54:40,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2024-11-19 05:54:40,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2024-11-19 05:54:40,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2024-11-19 05:54:40,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2024-11-19 05:54:40,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2024-11-19 05:54:40,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2024-11-19 05:54:40,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2024-11-19 05:54:40,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2024-11-19 05:54:40,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2024-11-19 05:54:40,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2024-11-19 05:54:40,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2024-11-19 05:54:40,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2024-11-19 05:54:40,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2024-11-19 05:54:40,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2024-11-19 05:54:40,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2024-11-19 05:54:40,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2024-11-19 05:54:40,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2024-11-19 05:54:40,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2024-11-19 05:54:40,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2024-11-19 05:54:40,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 05:54:40,317 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:40,317 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-19 05:54:40,318 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-19 05:54:40,345 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-19 05:54:40,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 270 places, 299 transitions, 625 flow [2024-11-19 05:54:40,415 INFO L124 PetriNetUnfolderBase]: 81/697 cut-off events. [2024-11-19 05:54:40,415 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-19 05:54:40,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 722 conditions, 697 events. 81/697 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3214 event pairs, 1 based on Foata normal form. 0/565 useless extension candidates. Maximal degree in co-relation 477. Up to 16 conditions per place. [2024-11-19 05:54:40,426 INFO L82 GeneralOperation]: Start removeDead. Operand has 270 places, 299 transitions, 625 flow [2024-11-19 05:54:40,432 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 270 places, 299 transitions, 625 flow [2024-11-19 05:54:40,433 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 05:54:40,434 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;@6861ed1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 05:54:40,434 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-19 05:54:40,437 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 05:54:40,437 INFO L124 PetriNetUnfolderBase]: 3/53 cut-off events. [2024-11-19 05:54:40,437 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 05:54:40,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:40,437 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:40,437 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-19 05:54:40,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:40,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1136755415, now seen corresponding path program 1 times [2024-11-19 05:54:40,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:40,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301452660] [2024-11-19 05:54:40,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:40,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:40,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:40,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:40,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:40,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301452660] [2024-11-19 05:54:40,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301452660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:40,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:40,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 05:54:40,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889364701] [2024-11-19 05:54:40,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:40,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 05:54:40,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:40,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 05:54:40,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 05:54:40,484 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 299 [2024-11-19 05:54:40,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 299 transitions, 625 flow. Second operand has 3 states, 3 states have (on average 228.66666666666666) internal successors, (686), 3 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:40,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:40,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 299 [2024-11-19 05:54:40,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 05:54:48,743 INFO L124 PetriNetUnfolderBase]: 20295/73408 cut-off events. [2024-11-19 05:54:48,743 INFO L125 PetriNetUnfolderBase]: For 1207/1272 co-relation queries the response was YES. [2024-11-19 05:54:48,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101109 conditions, 73408 events. 20295/73408 cut-off events. For 1207/1272 co-relation queries the response was YES. Maximal size of possible extension queue 1366. Compared 1038010 event pairs, 12300 based on Foata normal form. 15724/80625 useless extension candidates. Maximal degree in co-relation 12982. Up to 27148 conditions per place. [2024-11-19 05:54:49,255 INFO L140 encePairwiseOnDemand]: 266/299 looper letters, 47 selfloop transitions, 2 changer transitions 0/275 dead transitions. [2024-11-19 05:54:49,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 275 transitions, 675 flow [2024-11-19 05:54:49,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 05:54:49,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 05:54:49,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 768 transitions. [2024-11-19 05:54:49,257 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8561872909698997 [2024-11-19 05:54:49,257 INFO L175 Difference]: Start difference. First operand has 270 places, 299 transitions, 625 flow. Second operand 3 states and 768 transitions. [2024-11-19 05:54:49,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 275 transitions, 675 flow [2024-11-19 05:54:49,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 275 transitions, 675 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 05:54:49,261 INFO L231 Difference]: Finished difference. Result has 271 places, 268 transitions, 573 flow [2024-11-19 05:54:49,262 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=299, PETRI_DIFFERENCE_MINUEND_FLOW=561, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=573, PETRI_PLACES=271, PETRI_TRANSITIONS=268} [2024-11-19 05:54:49,263 INFO L277 CegarLoopForPetriNet]: 270 programPoint places, 1 predicate places. [2024-11-19 05:54:49,263 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 268 transitions, 573 flow [2024-11-19 05:54:49,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.66666666666666) internal successors, (686), 3 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:49,263 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 05:54:49,264 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 05:54:49,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 05:54:49,264 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2024-11-19 05:54:49,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 05:54:49,264 INFO L85 PathProgramCache]: Analyzing trace with hash -260484440, now seen corresponding path program 1 times [2024-11-19 05:54:49,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 05:54:49,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641504878] [2024-11-19 05:54:49,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 05:54:49,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 05:54:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 05:54:49,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 05:54:49,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 05:54:49,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641504878] [2024-11-19 05:54:49,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641504878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 05:54:49,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 05:54:49,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 05:54:49,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971523655] [2024-11-19 05:54:49,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 05:54:49,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 05:54:49,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 05:54:49,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 05:54:49,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-19 05:54:49,573 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 299 [2024-11-19 05:54:49,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 268 transitions, 573 flow. Second operand has 6 states, 6 states have (on average 216.5) internal successors, (1299), 6 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 05:54:49,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 05:54:49,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 299 [2024-11-19 05:54:49,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand