./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/reorder_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/reorder_5.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 0517a9ebb69eeca4ecbb6ac063832eb703719698fb2ee670ca348e2c511f9dfd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 16:45:07,855 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 16:45:07,928 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-11 16:45:07,934 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 16:45:07,936 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 16:45:07,960 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 16:45:07,961 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 16:45:07,961 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 16:45:07,962 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 16:45:07,963 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 16:45:07,964 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 16:45:07,964 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 16:45:07,965 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 16:45:07,965 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 16:45:07,965 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 16:45:07,965 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 16:45:07,966 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 16:45:07,966 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 16:45:07,966 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 16:45:07,966 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 16:45:07,966 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 16:45:07,970 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 16:45:07,970 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-11 16:45:07,970 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 16:45:07,971 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 16:45:07,971 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 16:45:07,971 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 16:45:07,971 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 16:45:07,971 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 16:45:07,972 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 16:45:07,972 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 16:45:07,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:45:07,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 16:45:07,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 16:45:07,972 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 16:45:07,973 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 16:45:07,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 16:45:07,973 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 16:45:07,973 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 16:45:07,973 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 16:45:07,974 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 16:45:07,974 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0517a9ebb69eeca4ecbb6ac063832eb703719698fb2ee670ca348e2c511f9dfd [2024-10-11 16:45:08,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 16:45:08,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 16:45:08,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 16:45:08,213 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 16:45:08,213 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 16:45:08,214 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/reorder_5.i [2024-10-11 16:45:09,556 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 16:45:09,782 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 16:45:09,785 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/reorder_5.i [2024-10-11 16:45:09,805 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/40215a03b/f39bc040ce5047b8b67bde310c195e08/FLAG39c776668 [2024-10-11 16:45:09,817 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/40215a03b/f39bc040ce5047b8b67bde310c195e08 [2024-10-11 16:45:09,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 16:45:09,820 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 16:45:09,821 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 16:45:09,822 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 16:45:09,826 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 16:45:09,827 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:45:09" (1/1) ... [2024-10-11 16:45:09,827 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@591a3d20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:09, skipping insertion in model container [2024-10-11 16:45:09,828 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 04:45:09" (1/1) ... [2024-10-11 16:45:09,866 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 16:45:10,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:45:10,321 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 16:45:10,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 16:45:10,483 INFO L204 MainTranslator]: Completed translation [2024-10-11 16:45:10,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:10 WrapperNode [2024-10-11 16:45:10,487 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 16:45:10,493 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 16:45:10,493 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 16:45:10,493 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 16:45:10,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:10" (1/1) ... [2024-10-11 16:45:10,544 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:10" (1/1) ... [2024-10-11 16:45:10,574 INFO L138 Inliner]: procedures = 371, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 212 [2024-10-11 16:45:10,578 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 16:45:10,579 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 16:45:10,579 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 16:45:10,579 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 16:45:10,588 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:10" (1/1) ... [2024-10-11 16:45:10,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:10" (1/1) ... [2024-10-11 16:45:10,592 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:10" (1/1) ... [2024-10-11 16:45:10,596 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:10" (1/1) ... [2024-10-11 16:45:10,607 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:10" (1/1) ... [2024-10-11 16:45:10,616 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:10" (1/1) ... [2024-10-11 16:45:10,618 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:10" (1/1) ... [2024-10-11 16:45:10,623 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:10" (1/1) ... [2024-10-11 16:45:10,626 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 16:45:10,627 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 16:45:10,627 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 16:45:10,627 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 16:45:10,628 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:10" (1/1) ... [2024-10-11 16:45:10,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 16:45:10,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:10,670 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 16:45:10,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 16:45:10,709 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 16:45:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 16:45:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 16:45:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 16:45:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-11 16:45:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-10-11 16:45:10,710 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-10-11 16:45:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-11 16:45:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 16:45:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-10-11 16:45:10,710 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-10-11 16:45:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-11 16:45:10,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 16:45:10,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 16:45:10,713 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 16:45:10,819 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 16:45:10,820 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 16:45:11,095 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 16:45:11,095 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 16:45:11,143 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 16:45:11,143 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-11 16:45:11,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:45:11 BoogieIcfgContainer [2024-10-11 16:45:11,144 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 16:45:11,145 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 16:45:11,145 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 16:45:11,148 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 16:45:11,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 04:45:09" (1/3) ... [2024-10-11 16:45:11,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a084cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:45:11, skipping insertion in model container [2024-10-11 16:45:11,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 04:45:10" (2/3) ... [2024-10-11 16:45:11,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a084cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 04:45:11, skipping insertion in model container [2024-10-11 16:45:11,150 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 04:45:11" (3/3) ... [2024-10-11 16:45:11,151 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_5.i [2024-10-11 16:45:11,167 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 16:45:11,168 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2024-10-11 16:45:11,169 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 16:45:11,231 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-11 16:45:11,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 230 places, 242 transitions, 504 flow [2024-10-11 16:45:11,376 INFO L124 PetriNetUnfolderBase]: 37/514 cut-off events. [2024-10-11 16:45:11,377 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-11 16:45:11,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 531 conditions, 514 events. 37/514 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2039 event pairs, 0 based on Foata normal form. 0/417 useless extension candidates. Maximal degree in co-relation 278. Up to 8 conditions per place. [2024-10-11 16:45:11,387 INFO L82 GeneralOperation]: Start removeDead. Operand has 230 places, 242 transitions, 504 flow [2024-10-11 16:45:11,397 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 230 places, 242 transitions, 504 flow [2024-10-11 16:45:11,408 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:45:11,417 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;@5461931c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:45:11,418 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-10-11 16:45:11,423 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 16:45:11,424 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-10-11 16:45:11,424 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:45:11,424 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:11,425 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] [2024-10-11 16:45:11,426 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-11 16:45:11,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:11,431 INFO L85 PathProgramCache]: Analyzing trace with hash 443327457, now seen corresponding path program 1 times [2024-10-11 16:45:11,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:11,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753233048] [2024-10-11 16:45:11,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:11,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:11,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:11,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:11,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:11,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753233048] [2024-10-11 16:45:11,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753233048] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:11,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:11,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:11,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024880871] [2024-10-11 16:45:11,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:11,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:11,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:11,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:11,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:11,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 242 [2024-10-11 16:45:11,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 242 transitions, 504 flow. Second operand has 3 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 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) [2024-10-11 16:45:11,734 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:11,734 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 242 [2024-10-11 16:45:11,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:11,876 INFO L124 PetriNetUnfolderBase]: 63/784 cut-off events. [2024-10-11 16:45:11,876 INFO L125 PetriNetUnfolderBase]: For 80/132 co-relation queries the response was YES. [2024-10-11 16:45:11,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 944 conditions, 784 events. 63/784 cut-off events. For 80/132 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3958 event pairs, 50 based on Foata normal form. 53/708 useless extension candidates. Maximal degree in co-relation 557. Up to 128 conditions per place. [2024-10-11 16:45:11,885 INFO L140 encePairwiseOnDemand]: 222/242 looper letters, 18 selfloop transitions, 1 changer transitions 6/222 dead transitions. [2024-10-11 16:45:11,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 222 transitions, 502 flow [2024-10-11 16:45:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:11,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:11,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 647 transitions. [2024-10-11 16:45:11,906 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8911845730027548 [2024-10-11 16:45:11,910 INFO L175 Difference]: Start difference. First operand has 230 places, 242 transitions, 504 flow. Second operand 3 states and 647 transitions. [2024-10-11 16:45:11,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 222 transitions, 502 flow [2024-10-11 16:45:11,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 222 transitions, 502 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:45:11,921 INFO L231 Difference]: Finished difference. Result has 223 places, 216 transitions, 454 flow [2024-10-11 16:45:11,923 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=464, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=454, PETRI_PLACES=223, PETRI_TRANSITIONS=216} [2024-10-11 16:45:11,928 INFO L277 CegarLoopForPetriNet]: 230 programPoint places, -7 predicate places. [2024-10-11 16:45:11,928 INFO L471 AbstractCegarLoop]: Abstraction has has 223 places, 216 transitions, 454 flow [2024-10-11 16:45:11,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 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) [2024-10-11 16:45:11,929 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:11,930 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:11,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 16:45:11,931 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-11 16:45:11,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:11,931 INFO L85 PathProgramCache]: Analyzing trace with hash 858225211, now seen corresponding path program 1 times [2024-10-11 16:45:11,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:11,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499869480] [2024-10-11 16:45:11,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:11,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:11,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:12,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:12,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:12,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499869480] [2024-10-11 16:45:12,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499869480] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:12,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:12,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:12,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634605784] [2024-10-11 16:45:12,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:12,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:12,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:12,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:12,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:12,049 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 242 [2024-10-11 16:45:12,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 216 transitions, 454 flow. Second operand has 3 states, 3 states have (on average 213.66666666666666) internal successors, (641), 3 states have internal predecessors, (641), 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) [2024-10-11 16:45:12,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:12,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 242 [2024-10-11 16:45:12,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:12,282 INFO L124 PetriNetUnfolderBase]: 60/1377 cut-off events. [2024-10-11 16:45:12,282 INFO L125 PetriNetUnfolderBase]: For 180/356 co-relation queries the response was YES. [2024-10-11 16:45:12,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1544 conditions, 1377 events. 60/1377 cut-off events. For 180/356 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 8692 event pairs, 28 based on Foata normal form. 0/1162 useless extension candidates. Maximal degree in co-relation 742. Up to 51 conditions per place. [2024-10-11 16:45:12,288 INFO L140 encePairwiseOnDemand]: 240/242 looper letters, 21 selfloop transitions, 1 changer transitions 0/225 dead transitions. [2024-10-11 16:45:12,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 225 transitions, 534 flow [2024-10-11 16:45:12,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:12,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:12,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 662 transitions. [2024-10-11 16:45:12,292 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9118457300275482 [2024-10-11 16:45:12,292 INFO L175 Difference]: Start difference. First operand has 223 places, 216 transitions, 454 flow. Second operand 3 states and 662 transitions. [2024-10-11 16:45:12,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 225 transitions, 534 flow [2024-10-11 16:45:12,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 225 transitions, 533 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:12,297 INFO L231 Difference]: Finished difference. Result has 217 places, 215 transitions, 453 flow [2024-10-11 16:45:12,299 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=453, PETRI_PLACES=217, PETRI_TRANSITIONS=215} [2024-10-11 16:45:12,300 INFO L277 CegarLoopForPetriNet]: 230 programPoint places, -13 predicate places. [2024-10-11 16:45:12,300 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 215 transitions, 453 flow [2024-10-11 16:45:12,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.66666666666666) internal successors, (641), 3 states have internal predecessors, (641), 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) [2024-10-11 16:45:12,300 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:12,300 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] [2024-10-11 16:45:12,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 16:45:12,301 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-11 16:45:12,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:12,302 INFO L85 PathProgramCache]: Analyzing trace with hash 835050036, now seen corresponding path program 1 times [2024-10-11 16:45:12,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:12,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184327305] [2024-10-11 16:45:12,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:12,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:12,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:12,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:12,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184327305] [2024-10-11 16:45:12,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184327305] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:12,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:12,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:12,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142227012] [2024-10-11 16:45:12,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:12,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:12,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:12,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:12,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:12,368 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 242 [2024-10-11 16:45:12,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 215 transitions, 453 flow. Second operand has 3 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 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) [2024-10-11 16:45:12,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:12,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 242 [2024-10-11 16:45:12,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:12,507 INFO L124 PetriNetUnfolderBase]: 232/1654 cut-off events. [2024-10-11 16:45:12,508 INFO L125 PetriNetUnfolderBase]: For 240/544 co-relation queries the response was YES. [2024-10-11 16:45:12,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2183 conditions, 1654 events. 232/1654 cut-off events. For 240/544 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 10737 event pairs, 52 based on Foata normal form. 19/1466 useless extension candidates. Maximal degree in co-relation 1088. Up to 355 conditions per place. [2024-10-11 16:45:12,516 INFO L140 encePairwiseOnDemand]: 230/242 looper letters, 15 selfloop transitions, 1 changer transitions 24/219 dead transitions. [2024-10-11 16:45:12,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 219 transitions, 527 flow [2024-10-11 16:45:12,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:12,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:12,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 630 transitions. [2024-10-11 16:45:12,518 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8677685950413223 [2024-10-11 16:45:12,518 INFO L175 Difference]: Start difference. First operand has 217 places, 215 transitions, 453 flow. Second operand 3 states and 630 transitions. [2024-10-11 16:45:12,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 219 transitions, 527 flow [2024-10-11 16:45:12,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 219 transitions, 526 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:12,523 INFO L231 Difference]: Finished difference. Result has 212 places, 191 transitions, 406 flow [2024-10-11 16:45:12,523 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=406, PETRI_PLACES=212, PETRI_TRANSITIONS=191} [2024-10-11 16:45:12,524 INFO L277 CegarLoopForPetriNet]: 230 programPoint places, -18 predicate places. [2024-10-11 16:45:12,525 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 191 transitions, 406 flow [2024-10-11 16:45:12,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 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) [2024-10-11 16:45:12,525 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:12,526 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] [2024-10-11 16:45:12,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 16:45:12,526 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-11 16:45:12,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:12,527 INFO L85 PathProgramCache]: Analyzing trace with hash 178064639, now seen corresponding path program 1 times [2024-10-11 16:45:12,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:12,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001428169] [2024-10-11 16:45:12,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:12,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:12,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:12,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:12,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:12,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001428169] [2024-10-11 16:45:12,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001428169] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:12,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:12,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:12,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412140617] [2024-10-11 16:45:12,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:12,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:12,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:12,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:12,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:12,595 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 242 [2024-10-11 16:45:12,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 191 transitions, 406 flow. Second operand has 3 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 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) [2024-10-11 16:45:12,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:12,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 242 [2024-10-11 16:45:12,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:12,725 INFO L124 PetriNetUnfolderBase]: 184/1551 cut-off events. [2024-10-11 16:45:12,726 INFO L125 PetriNetUnfolderBase]: For 164/268 co-relation queries the response was YES. [2024-10-11 16:45:12,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2020 conditions, 1551 events. 184/1551 cut-off events. For 164/268 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 10267 event pairs, 156 based on Foata normal form. 0/1351 useless extension candidates. Maximal degree in co-relation 1839. Up to 362 conditions per place. [2024-10-11 16:45:12,732 INFO L140 encePairwiseOnDemand]: 236/242 looper letters, 18 selfloop transitions, 2 changer transitions 0/188 dead transitions. [2024-10-11 16:45:12,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 188 transitions, 440 flow [2024-10-11 16:45:12,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:12,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:12,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 633 transitions. [2024-10-11 16:45:12,734 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.871900826446281 [2024-10-11 16:45:12,735 INFO L175 Difference]: Start difference. First operand has 212 places, 191 transitions, 406 flow. Second operand 3 states and 633 transitions. [2024-10-11 16:45:12,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 188 transitions, 440 flow [2024-10-11 16:45:12,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 188 transitions, 439 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:12,740 INFO L231 Difference]: Finished difference. Result has 192 places, 188 transitions, 407 flow [2024-10-11 16:45:12,741 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=407, PETRI_PLACES=192, PETRI_TRANSITIONS=188} [2024-10-11 16:45:12,742 INFO L277 CegarLoopForPetriNet]: 230 programPoint places, -38 predicate places. [2024-10-11 16:45:12,742 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 188 transitions, 407 flow [2024-10-11 16:45:12,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 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) [2024-10-11 16:45:12,743 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:12,743 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] [2024-10-11 16:45:12,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 16:45:12,743 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-11 16:45:12,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:12,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1611870718, now seen corresponding path program 1 times [2024-10-11 16:45:12,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:12,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768187143] [2024-10-11 16:45:12,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:12,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:12,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:12,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:12,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768187143] [2024-10-11 16:45:12,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768187143] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:12,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:12,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:12,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428901647] [2024-10-11 16:45:12,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:12,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:12,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:12,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:12,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:12,813 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 242 [2024-10-11 16:45:12,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 188 transitions, 407 flow. Second operand has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 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) [2024-10-11 16:45:12,814 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:12,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 242 [2024-10-11 16:45:12,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:12,927 INFO L124 PetriNetUnfolderBase]: 124/1330 cut-off events. [2024-10-11 16:45:12,927 INFO L125 PetriNetUnfolderBase]: For 160/264 co-relation queries the response was YES. [2024-10-11 16:45:12,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1681 conditions, 1330 events. 124/1330 cut-off events. For 160/264 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 8395 event pairs, 96 based on Foata normal form. 0/1141 useless extension candidates. Maximal degree in co-relation 840. Up to 250 conditions per place. [2024-10-11 16:45:12,934 INFO L140 encePairwiseOnDemand]: 239/242 looper letters, 17 selfloop transitions, 2 changer transitions 3/187 dead transitions. [2024-10-11 16:45:12,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 187 transitions, 445 flow [2024-10-11 16:45:12,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:12,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:12,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 636 transitions. [2024-10-11 16:45:12,936 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8760330578512396 [2024-10-11 16:45:12,936 INFO L175 Difference]: Start difference. First operand has 192 places, 188 transitions, 407 flow. Second operand 3 states and 636 transitions. [2024-10-11 16:45:12,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 187 transitions, 445 flow [2024-10-11 16:45:12,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 187 transitions, 445 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:45:12,940 INFO L231 Difference]: Finished difference. Result has 193 places, 184 transitions, 403 flow [2024-10-11 16:45:12,940 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=403, PETRI_PLACES=193, PETRI_TRANSITIONS=184} [2024-10-11 16:45:12,941 INFO L277 CegarLoopForPetriNet]: 230 programPoint places, -37 predicate places. [2024-10-11 16:45:12,943 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 184 transitions, 403 flow [2024-10-11 16:45:12,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 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) [2024-10-11 16:45:12,943 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:12,943 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] [2024-10-11 16:45:12,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 16:45:12,944 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-11 16:45:12,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:12,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1553405618, now seen corresponding path program 1 times [2024-10-11 16:45:12,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:12,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110134045] [2024-10-11 16:45:12,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:12,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:13,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:13,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:13,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110134045] [2024-10-11 16:45:13,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110134045] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:13,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:13,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:13,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371718005] [2024-10-11 16:45:13,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:13,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:13,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:13,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:13,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:13,017 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 242 [2024-10-11 16:45:13,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 184 transitions, 403 flow. Second operand has 3 states, 3 states have (on average 213.66666666666666) internal successors, (641), 3 states have internal predecessors, (641), 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) [2024-10-11 16:45:13,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:13,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 242 [2024-10-11 16:45:13,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:13,129 INFO L124 PetriNetUnfolderBase]: 60/1177 cut-off events. [2024-10-11 16:45:13,129 INFO L125 PetriNetUnfolderBase]: For 180/356 co-relation queries the response was YES. [2024-10-11 16:45:13,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1370 conditions, 1177 events. 60/1177 cut-off events. For 180/356 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6887 event pairs, 28 based on Foata normal form. 0/1033 useless extension candidates. Maximal degree in co-relation 684. Up to 51 conditions per place. [2024-10-11 16:45:13,133 INFO L140 encePairwiseOnDemand]: 240/242 looper letters, 21 selfloop transitions, 1 changer transitions 0/193 dead transitions. [2024-10-11 16:45:13,133 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 193 transitions, 483 flow [2024-10-11 16:45:13,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:13,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:13,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 662 transitions. [2024-10-11 16:45:13,135 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9118457300275482 [2024-10-11 16:45:13,135 INFO L175 Difference]: Start difference. First operand has 193 places, 184 transitions, 403 flow. Second operand 3 states and 662 transitions. [2024-10-11 16:45:13,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 193 transitions, 483 flow [2024-10-11 16:45:13,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 193 transitions, 479 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:13,138 INFO L231 Difference]: Finished difference. Result has 189 places, 183 transitions, 399 flow [2024-10-11 16:45:13,139 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=399, PETRI_PLACES=189, PETRI_TRANSITIONS=183} [2024-10-11 16:45:13,141 INFO L277 CegarLoopForPetriNet]: 230 programPoint places, -41 predicate places. [2024-10-11 16:45:13,141 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 183 transitions, 399 flow [2024-10-11 16:45:13,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 213.66666666666666) internal successors, (641), 3 states have internal predecessors, (641), 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) [2024-10-11 16:45:13,142 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:13,142 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:13,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 16:45:13,143 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-11 16:45:13,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:13,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1906502909, now seen corresponding path program 1 times [2024-10-11 16:45:13,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:13,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711754566] [2024-10-11 16:45:13,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:13,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:13,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:13,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:13,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711754566] [2024-10-11 16:45:13,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711754566] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:13,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:13,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:13,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525918437] [2024-10-11 16:45:13,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:13,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:13,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:13,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:13,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:13,209 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 242 [2024-10-11 16:45:13,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 183 transitions, 399 flow. Second operand has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 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) [2024-10-11 16:45:13,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:13,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 242 [2024-10-11 16:45:13,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:13,304 INFO L124 PetriNetUnfolderBase]: 120/1268 cut-off events. [2024-10-11 16:45:13,305 INFO L125 PetriNetUnfolderBase]: For 168/288 co-relation queries the response was YES. [2024-10-11 16:45:13,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1605 conditions, 1268 events. 120/1268 cut-off events. For 168/288 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 7937 event pairs, 92 based on Foata normal form. 0/1083 useless extension candidates. Maximal degree in co-relation 808. Up to 234 conditions per place. [2024-10-11 16:45:13,311 INFO L140 encePairwiseOnDemand]: 239/242 looper letters, 18 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2024-10-11 16:45:13,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 182 transitions, 437 flow [2024-10-11 16:45:13,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:13,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:13,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 635 transitions. [2024-10-11 16:45:13,312 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8746556473829201 [2024-10-11 16:45:13,312 INFO L175 Difference]: Start difference. First operand has 189 places, 183 transitions, 399 flow. Second operand 3 states and 635 transitions. [2024-10-11 16:45:13,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 182 transitions, 437 flow [2024-10-11 16:45:13,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 182 transitions, 436 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:13,315 INFO L231 Difference]: Finished difference. Result has 189 places, 182 transitions, 400 flow [2024-10-11 16:45:13,315 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=400, PETRI_PLACES=189, PETRI_TRANSITIONS=182} [2024-10-11 16:45:13,316 INFO L277 CegarLoopForPetriNet]: 230 programPoint places, -41 predicate places. [2024-10-11 16:45:13,316 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 182 transitions, 400 flow [2024-10-11 16:45:13,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 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) [2024-10-11 16:45:13,317 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:13,317 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:13,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 16:45:13,317 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-11 16:45:13,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:13,317 INFO L85 PathProgramCache]: Analyzing trace with hash 903187859, now seen corresponding path program 1 times [2024-10-11 16:45:13,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:13,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838963571] [2024-10-11 16:45:13,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:13,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:13,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:13,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:13,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838963571] [2024-10-11 16:45:13,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838963571] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:13,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:13,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 16:45:13,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994960253] [2024-10-11 16:45:13,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:13,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:13,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:13,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:13,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:13,369 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 206 out of 242 [2024-10-11 16:45:13,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 182 transitions, 400 flow. Second operand has 3 states, 3 states have (on average 207.66666666666666) internal successors, (623), 3 states have internal predecessors, (623), 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) [2024-10-11 16:45:13,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:13,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 206 of 242 [2024-10-11 16:45:13,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:13,474 INFO L124 PetriNetUnfolderBase]: 58/1164 cut-off events. [2024-10-11 16:45:13,474 INFO L125 PetriNetUnfolderBase]: For 180/356 co-relation queries the response was YES. [2024-10-11 16:45:13,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1365 conditions, 1164 events. 58/1164 cut-off events. For 180/356 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6806 event pairs, 28 based on Foata normal form. 2/1023 useless extension candidates. Maximal degree in co-relation 695. Up to 110 conditions per place. [2024-10-11 16:45:13,478 INFO L140 encePairwiseOnDemand]: 240/242 looper letters, 16 selfloop transitions, 0 changer transitions 1/181 dead transitions. [2024-10-11 16:45:13,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 181 transitions, 429 flow [2024-10-11 16:45:13,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:13,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:13,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 636 transitions. [2024-10-11 16:45:13,480 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8760330578512396 [2024-10-11 16:45:13,480 INFO L175 Difference]: Start difference. First operand has 189 places, 182 transitions, 400 flow. Second operand 3 states and 636 transitions. [2024-10-11 16:45:13,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 181 transitions, 429 flow [2024-10-11 16:45:13,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 181 transitions, 421 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-11 16:45:13,484 INFO L231 Difference]: Finished difference. Result has 188 places, 180 transitions, 387 flow [2024-10-11 16:45:13,485 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=387, PETRI_PLACES=188, PETRI_TRANSITIONS=180} [2024-10-11 16:45:13,486 INFO L277 CegarLoopForPetriNet]: 230 programPoint places, -42 predicate places. [2024-10-11 16:45:13,487 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 180 transitions, 387 flow [2024-10-11 16:45:13,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 207.66666666666666) internal successors, (623), 3 states have internal predecessors, (623), 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) [2024-10-11 16:45:13,487 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:13,487 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] [2024-10-11 16:45:13,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 16:45:13,488 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-11 16:45:13,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:13,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1668968920, now seen corresponding path program 1 times [2024-10-11 16:45:13,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:13,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353238451] [2024-10-11 16:45:13,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:13,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:13,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:13,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:13,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353238451] [2024-10-11 16:45:13,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353238451] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:13,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:13,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:13,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247822493] [2024-10-11 16:45:13,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:13,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:13,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:13,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:13,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:14,075 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 242 [2024-10-11 16:45:14,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 180 transitions, 387 flow. Second operand has 6 states, 6 states have (on average 182.66666666666666) internal successors, (1096), 6 states have internal predecessors, (1096), 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) [2024-10-11 16:45:14,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:14,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 242 [2024-10-11 16:45:14,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:14,374 INFO L124 PetriNetUnfolderBase]: 650/3452 cut-off events. [2024-10-11 16:45:14,374 INFO L125 PetriNetUnfolderBase]: For 98/100 co-relation queries the response was YES. [2024-10-11 16:45:14,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4986 conditions, 3452 events. 650/3452 cut-off events. For 98/100 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 28961 event pairs, 296 based on Foata normal form. 0/3061 useless extension candidates. Maximal degree in co-relation 4980. Up to 1255 conditions per place. [2024-10-11 16:45:14,392 INFO L140 encePairwiseOnDemand]: 236/242 looper letters, 44 selfloop transitions, 5 changer transitions 4/187 dead transitions. [2024-10-11 16:45:14,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 187 transitions, 501 flow [2024-10-11 16:45:14,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:14,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:14,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1137 transitions. [2024-10-11 16:45:14,394 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7830578512396694 [2024-10-11 16:45:14,395 INFO L175 Difference]: Start difference. First operand has 188 places, 180 transitions, 387 flow. Second operand 6 states and 1137 transitions. [2024-10-11 16:45:14,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 187 transitions, 501 flow [2024-10-11 16:45:14,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 187 transitions, 499 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:14,398 INFO L231 Difference]: Finished difference. Result has 190 places, 175 transitions, 385 flow [2024-10-11 16:45:14,398 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=385, PETRI_PLACES=190, PETRI_TRANSITIONS=175} [2024-10-11 16:45:14,399 INFO L277 CegarLoopForPetriNet]: 230 programPoint places, -40 predicate places. [2024-10-11 16:45:14,399 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 175 transitions, 385 flow [2024-10-11 16:45:14,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.66666666666666) internal successors, (1096), 6 states have internal predecessors, (1096), 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) [2024-10-11 16:45:14,400 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:14,400 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] [2024-10-11 16:45:14,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 16:45:14,400 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-11 16:45:14,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:14,401 INFO L85 PathProgramCache]: Analyzing trace with hash 99985581, now seen corresponding path program 1 times [2024-10-11 16:45:14,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:14,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332557964] [2024-10-11 16:45:14,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:14,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:14,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:14,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:14,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332557964] [2024-10-11 16:45:14,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332557964] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:14,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:14,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 16:45:14,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345583000] [2024-10-11 16:45:14,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:14,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 16:45:14,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:14,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 16:45:14,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 16:45:14,577 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 242 [2024-10-11 16:45:14,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 175 transitions, 385 flow. Second operand has 4 states, 4 states have (on average 202.5) internal successors, (810), 4 states have internal predecessors, (810), 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) [2024-10-11 16:45:14,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:14,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 242 [2024-10-11 16:45:14,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:14,738 INFO L124 PetriNetUnfolderBase]: 159/1449 cut-off events. [2024-10-11 16:45:14,738 INFO L125 PetriNetUnfolderBase]: For 124/226 co-relation queries the response was YES. [2024-10-11 16:45:14,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1906 conditions, 1449 events. 159/1449 cut-off events. For 124/226 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9737 event pairs, 120 based on Foata normal form. 11/1288 useless extension candidates. Maximal degree in co-relation 1900. Up to 209 conditions per place. [2024-10-11 16:45:14,744 INFO L140 encePairwiseOnDemand]: 230/242 looper letters, 42 selfloop transitions, 10 changer transitions 0/203 dead transitions. [2024-10-11 16:45:14,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 203 transitions, 569 flow [2024-10-11 16:45:14,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 16:45:14,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 16:45:14,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 858 transitions. [2024-10-11 16:45:14,746 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8863636363636364 [2024-10-11 16:45:14,746 INFO L175 Difference]: Start difference. First operand has 190 places, 175 transitions, 385 flow. Second operand 4 states and 858 transitions. [2024-10-11 16:45:14,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 203 transitions, 569 flow [2024-10-11 16:45:14,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 203 transitions, 559 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:14,752 INFO L231 Difference]: Finished difference. Result has 186 places, 183 transitions, 449 flow [2024-10-11 16:45:14,752 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=449, PETRI_PLACES=186, PETRI_TRANSITIONS=183} [2024-10-11 16:45:14,752 INFO L277 CegarLoopForPetriNet]: 230 programPoint places, -44 predicate places. [2024-10-11 16:45:14,753 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 183 transitions, 449 flow [2024-10-11 16:45:14,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 202.5) internal successors, (810), 4 states have internal predecessors, (810), 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) [2024-10-11 16:45:14,754 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:14,754 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:14,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 16:45:14,755 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2024-10-11 16:45:14,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:14,756 INFO L85 PathProgramCache]: Analyzing trace with hash 333386763, now seen corresponding path program 1 times [2024-10-11 16:45:14,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:14,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532288188] [2024-10-11 16:45:14,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:14,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 16:45:14,794 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 16:45:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 16:45:14,837 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 16:45:14,838 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 16:45:14,839 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2024-10-11 16:45:14,841 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2024-10-11 16:45:14,841 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2024-10-11 16:45:14,841 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2024-10-11 16:45:14,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2024-10-11 16:45:14,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2024-10-11 16:45:14,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2024-10-11 16:45:14,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2024-10-11 16:45:14,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2024-10-11 16:45:14,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2024-10-11 16:45:14,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2024-10-11 16:45:14,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2024-10-11 16:45:14,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2024-10-11 16:45:14,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2024-10-11 16:45:14,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2024-10-11 16:45:14,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2024-10-11 16:45:14,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2024-10-11 16:45:14,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2024-10-11 16:45:14,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2024-10-11 16:45:14,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2024-10-11 16:45:14,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2024-10-11 16:45:14,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2024-10-11 16:45:14,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2024-10-11 16:45:14,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2024-10-11 16:45:14,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2024-10-11 16:45:14,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2024-10-11 16:45:14,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2024-10-11 16:45:14,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 33 remaining) [2024-10-11 16:45:14,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr0ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2024-10-11 16:45:14,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location setThreadErr1ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2024-10-11 16:45:14,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2024-10-11 16:45:14,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr1ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2024-10-11 16:45:14,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr2ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2024-10-11 16:45:14,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 16:45:14,846 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:14,848 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 16:45:14,848 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-11 16:45:14,876 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-10-11 16:45:14,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 258 places, 271 transitions, 586 flow [2024-10-11 16:45:14,988 INFO L124 PetriNetUnfolderBase]: 149/1607 cut-off events. [2024-10-11 16:45:14,988 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-10-11 16:45:14,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1696 conditions, 1607 events. 149/1607 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 9254 event pairs, 1 based on Foata normal form. 0/1314 useless extension candidates. Maximal degree in co-relation 931. Up to 32 conditions per place. [2024-10-11 16:45:14,998 INFO L82 GeneralOperation]: Start removeDead. Operand has 258 places, 271 transitions, 586 flow [2024-10-11 16:45:15,007 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 258 places, 271 transitions, 586 flow [2024-10-11 16:45:15,009 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 16:45:15,009 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;@5461931c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 16:45:15,009 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-10-11 16:45:15,010 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 16:45:15,011 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-10-11 16:45:15,011 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 16:45:15,011 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:15,011 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] [2024-10-11 16:45:15,011 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:15,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:15,012 INFO L85 PathProgramCache]: Analyzing trace with hash -238539743, now seen corresponding path program 1 times [2024-10-11 16:45:15,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:15,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763959443] [2024-10-11 16:45:15,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:15,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:15,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:15,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:15,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763959443] [2024-10-11 16:45:15,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763959443] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:15,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:15,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:15,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669069480] [2024-10-11 16:45:15,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:15,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:15,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:15,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:15,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:15,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 271 [2024-10-11 16:45:15,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 271 transitions, 586 flow. Second operand has 3 states, 3 states have (on average 216.66666666666666) internal successors, (650), 3 states have internal predecessors, (650), 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) [2024-10-11 16:45:15,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:15,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 271 [2024-10-11 16:45:15,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:16,063 INFO L124 PetriNetUnfolderBase]: 2218/9953 cut-off events. [2024-10-11 16:45:16,063 INFO L125 PetriNetUnfolderBase]: For 2400/5469 co-relation queries the response was YES. [2024-10-11 16:45:16,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13940 conditions, 9953 events. 2218/9953 cut-off events. For 2400/5469 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 103749 event pairs, 1905 based on Foata normal form. 879/9106 useless extension candidates. Maximal degree in co-relation 9049. Up to 3249 conditions per place. [2024-10-11 16:45:16,127 INFO L140 encePairwiseOnDemand]: 246/271 looper letters, 28 selfloop transitions, 1 changer transitions 4/245 dead transitions. [2024-10-11 16:45:16,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 245 transitions, 592 flow [2024-10-11 16:45:16,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:16,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:16,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 701 transitions. [2024-10-11 16:45:16,129 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8622386223862238 [2024-10-11 16:45:16,129 INFO L175 Difference]: Start difference. First operand has 258 places, 271 transitions, 586 flow. Second operand 3 states and 701 transitions. [2024-10-11 16:45:16,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 245 transitions, 592 flow [2024-10-11 16:45:16,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 245 transitions, 592 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:45:16,134 INFO L231 Difference]: Finished difference. Result has 246 places, 241 transitions, 528 flow [2024-10-11 16:45:16,135 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=528, PETRI_PLACES=246, PETRI_TRANSITIONS=241} [2024-10-11 16:45:16,135 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, -12 predicate places. [2024-10-11 16:45:16,135 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 241 transitions, 528 flow [2024-10-11 16:45:16,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 216.66666666666666) internal successors, (650), 3 states have internal predecessors, (650), 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) [2024-10-11 16:45:16,136 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:16,136 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:16,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 16:45:16,136 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:16,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:16,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1195178760, now seen corresponding path program 1 times [2024-10-11 16:45:16,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:16,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875092879] [2024-10-11 16:45:16,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:16,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:16,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:16,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:16,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875092879] [2024-10-11 16:45:16,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875092879] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:16,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:16,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:16,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332303013] [2024-10-11 16:45:16,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:16,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:16,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:16,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:16,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:16,162 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 271 [2024-10-11 16:45:16,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 241 transitions, 528 flow. Second operand has 3 states, 3 states have (on average 226.66666666666666) internal successors, (680), 3 states have internal predecessors, (680), 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) [2024-10-11 16:45:16,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:16,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 271 [2024-10-11 16:45:16,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:18,080 INFO L124 PetriNetUnfolderBase]: 2492/17389 cut-off events. [2024-10-11 16:45:18,080 INFO L125 PetriNetUnfolderBase]: For 4748/26624 co-relation queries the response was YES. [2024-10-11 16:45:18,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22356 conditions, 17389 events. 2492/17389 cut-off events. For 4748/26624 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 216356 event pairs, 1706 based on Foata normal form. 0/14144 useless extension candidates. Maximal degree in co-relation 11147. Up to 1670 conditions per place. [2024-10-11 16:45:18,182 INFO L140 encePairwiseOnDemand]: 269/271 looper letters, 41 selfloop transitions, 1 changer transitions 0/260 dead transitions. [2024-10-11 16:45:18,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 260 transitions, 690 flow [2024-10-11 16:45:18,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:18,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:18,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 721 transitions. [2024-10-11 16:45:18,185 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8868388683886839 [2024-10-11 16:45:18,185 INFO L175 Difference]: Start difference. First operand has 246 places, 241 transitions, 528 flow. Second operand 3 states and 721 transitions. [2024-10-11 16:45:18,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 260 transitions, 690 flow [2024-10-11 16:45:18,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 260 transitions, 689 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:18,189 INFO L231 Difference]: Finished difference. Result has 242 places, 240 transitions, 527 flow [2024-10-11 16:45:18,190 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=525, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=527, PETRI_PLACES=242, PETRI_TRANSITIONS=240} [2024-10-11 16:45:18,190 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, -16 predicate places. [2024-10-11 16:45:18,190 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 240 transitions, 527 flow [2024-10-11 16:45:18,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 226.66666666666666) internal successors, (680), 3 states have internal predecessors, (680), 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) [2024-10-11 16:45:18,191 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:18,191 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] [2024-10-11 16:45:18,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 16:45:18,191 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:18,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:18,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1604291564, now seen corresponding path program 1 times [2024-10-11 16:45:18,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:18,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223479562] [2024-10-11 16:45:18,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:18,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:18,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:18,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:18,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:18,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223479562] [2024-10-11 16:45:18,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223479562] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:18,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:18,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:18,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196280434] [2024-10-11 16:45:18,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:18,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:18,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:18,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:18,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:18,224 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 271 [2024-10-11 16:45:18,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 240 transitions, 527 flow. Second operand has 3 states, 3 states have (on average 208.66666666666666) internal successors, (626), 3 states have internal predecessors, (626), 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) [2024-10-11 16:45:18,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:18,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 271 [2024-10-11 16:45:18,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:22,080 INFO L124 PetriNetUnfolderBase]: 14770/40622 cut-off events. [2024-10-11 16:45:22,080 INFO L125 PetriNetUnfolderBase]: For 8274/46430 co-relation queries the response was YES. [2024-10-11 16:45:22,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64561 conditions, 40622 events. 14770/40622 cut-off events. For 8274/46430 co-relation queries the response was YES. Maximal size of possible extension queue 1084. Compared 463266 event pairs, 4272 based on Foata normal form. 121/35648 useless extension candidates. Maximal degree in co-relation 32276. Up to 17809 conditions per place. [2024-10-11 16:45:22,297 INFO L140 encePairwiseOnDemand]: 257/271 looper letters, 41 selfloop transitions, 2 changer transitions 18/255 dead transitions. [2024-10-11 16:45:22,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 255 transitions, 696 flow [2024-10-11 16:45:22,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:22,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:22,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 686 transitions. [2024-10-11 16:45:22,299 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8437884378843789 [2024-10-11 16:45:22,299 INFO L175 Difference]: Start difference. First operand has 242 places, 240 transitions, 527 flow. Second operand 3 states and 686 transitions. [2024-10-11 16:45:22,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 255 transitions, 696 flow [2024-10-11 16:45:22,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 255 transitions, 695 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:22,305 INFO L231 Difference]: Finished difference. Result has 237 places, 220 transitions, 496 flow [2024-10-11 16:45:22,306 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=496, PETRI_PLACES=237, PETRI_TRANSITIONS=220} [2024-10-11 16:45:22,307 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, -21 predicate places. [2024-10-11 16:45:22,307 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 220 transitions, 496 flow [2024-10-11 16:45:22,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.66666666666666) internal successors, (626), 3 states have internal predecessors, (626), 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) [2024-10-11 16:45:22,307 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:22,307 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] [2024-10-11 16:45:22,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 16:45:22,308 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:22,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:22,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1022939263, now seen corresponding path program 1 times [2024-10-11 16:45:22,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:22,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389779222] [2024-10-11 16:45:22,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:22,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:22,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:22,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:22,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389779222] [2024-10-11 16:45:22,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389779222] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:22,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:22,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:22,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759479872] [2024-10-11 16:45:22,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:22,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:22,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:22,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:22,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:22,340 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 271 [2024-10-11 16:45:22,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 220 transitions, 496 flow. Second operand has 3 states, 3 states have (on average 216.66666666666666) internal successors, (650), 3 states have internal predecessors, (650), 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) [2024-10-11 16:45:22,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:22,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 271 [2024-10-11 16:45:22,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:24,628 INFO L124 PetriNetUnfolderBase]: 6096/21809 cut-off events. [2024-10-11 16:45:24,629 INFO L125 PetriNetUnfolderBase]: For 4256/10796 co-relation queries the response was YES. [2024-10-11 16:45:24,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33778 conditions, 21809 events. 6096/21809 cut-off events. For 4256/10796 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 243841 event pairs, 5210 based on Foata normal form. 0/19055 useless extension candidates. Maximal degree in co-relation 28671. Up to 8524 conditions per place. [2024-10-11 16:45:24,754 INFO L140 encePairwiseOnDemand]: 265/271 looper letters, 28 selfloop transitions, 2 changer transitions 0/217 dead transitions. [2024-10-11 16:45:24,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 217 transitions, 550 flow [2024-10-11 16:45:24,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:24,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:24,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2024-10-11 16:45:24,756 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8388683886838868 [2024-10-11 16:45:24,756 INFO L175 Difference]: Start difference. First operand has 237 places, 220 transitions, 496 flow. Second operand 3 states and 682 transitions. [2024-10-11 16:45:24,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 217 transitions, 550 flow [2024-10-11 16:45:24,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 217 transitions, 550 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:45:24,762 INFO L231 Difference]: Finished difference. Result has 221 places, 217 transitions, 498 flow [2024-10-11 16:45:24,763 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=498, PETRI_PLACES=221, PETRI_TRANSITIONS=217} [2024-10-11 16:45:24,763 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, -37 predicate places. [2024-10-11 16:45:24,763 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 217 transitions, 498 flow [2024-10-11 16:45:24,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 216.66666666666666) internal successors, (650), 3 states have internal predecessors, (650), 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) [2024-10-11 16:45:24,764 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:24,764 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] [2024-10-11 16:45:24,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 16:45:24,764 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:24,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:24,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1787574046, now seen corresponding path program 1 times [2024-10-11 16:45:24,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:24,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437777329] [2024-10-11 16:45:24,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:24,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:24,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:24,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:24,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437777329] [2024-10-11 16:45:24,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437777329] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:24,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:24,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:24,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880417532] [2024-10-11 16:45:24,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:24,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:24,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:24,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:24,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:24,802 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 271 [2024-10-11 16:45:24,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 217 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 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) [2024-10-11 16:45:24,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:24,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 271 [2024-10-11 16:45:24,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:26,636 INFO L124 PetriNetUnfolderBase]: 4656/18252 cut-off events. [2024-10-11 16:45:26,636 INFO L125 PetriNetUnfolderBase]: For 4254/12402 co-relation queries the response was YES. [2024-10-11 16:45:26,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27758 conditions, 18252 events. 4656/18252 cut-off events. For 4254/12402 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 205825 event pairs, 3782 based on Foata normal form. 0/15259 useless extension candidates. Maximal degree in co-relation 24022. Up to 6578 conditions per place. [2024-10-11 16:45:26,752 INFO L140 encePairwiseOnDemand]: 268/271 looper letters, 28 selfloop transitions, 2 changer transitions 2/216 dead transitions. [2024-10-11 16:45:26,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 216 transitions, 556 flow [2024-10-11 16:45:26,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:26,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:26,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 685 transitions. [2024-10-11 16:45:26,754 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8425584255842559 [2024-10-11 16:45:26,755 INFO L175 Difference]: Start difference. First operand has 221 places, 217 transitions, 498 flow. Second operand 3 states and 685 transitions. [2024-10-11 16:45:26,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 216 transitions, 556 flow [2024-10-11 16:45:26,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 216 transitions, 556 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 16:45:26,761 INFO L231 Difference]: Finished difference. Result has 222 places, 214 transitions, 496 flow [2024-10-11 16:45:26,762 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=496, PETRI_PLACES=222, PETRI_TRANSITIONS=214} [2024-10-11 16:45:26,762 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, -36 predicate places. [2024-10-11 16:45:26,762 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 214 transitions, 496 flow [2024-10-11 16:45:26,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 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) [2024-10-11 16:45:26,763 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:26,763 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] [2024-10-11 16:45:26,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 16:45:26,763 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:26,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:26,764 INFO L85 PathProgramCache]: Analyzing trace with hash 627458894, now seen corresponding path program 1 times [2024-10-11 16:45:26,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:26,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217884281] [2024-10-11 16:45:26,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:26,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:26,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:26,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:26,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217884281] [2024-10-11 16:45:26,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217884281] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:26,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:26,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:26,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674849129] [2024-10-11 16:45:26,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:26,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:26,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:26,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:26,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:26,803 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 271 [2024-10-11 16:45:26,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 214 transitions, 496 flow. Second operand has 3 states, 3 states have (on average 226.66666666666666) internal successors, (680), 3 states have internal predecessors, (680), 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) [2024-10-11 16:45:26,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:26,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 271 [2024-10-11 16:45:26,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:28,550 INFO L124 PetriNetUnfolderBase]: 2546/15313 cut-off events. [2024-10-11 16:45:28,551 INFO L125 PetriNetUnfolderBase]: For 4748/26624 co-relation queries the response was YES. [2024-10-11 16:45:28,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20987 conditions, 15313 events. 2546/15313 cut-off events. For 4748/26624 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 181829 event pairs, 1706 based on Foata normal form. 0/12925 useless extension candidates. Maximal degree in co-relation 19194. Up to 1670 conditions per place. [2024-10-11 16:45:28,629 INFO L140 encePairwiseOnDemand]: 269/271 looper letters, 41 selfloop transitions, 1 changer transitions 0/233 dead transitions. [2024-10-11 16:45:28,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 233 transitions, 658 flow [2024-10-11 16:45:28,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:28,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:28,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 721 transitions. [2024-10-11 16:45:28,631 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8868388683886839 [2024-10-11 16:45:28,631 INFO L175 Difference]: Start difference. First operand has 222 places, 214 transitions, 496 flow. Second operand 3 states and 721 transitions. [2024-10-11 16:45:28,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 233 transitions, 658 flow [2024-10-11 16:45:28,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 233 transitions, 654 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:28,635 INFO L231 Difference]: Finished difference. Result has 219 places, 213 transitions, 492 flow [2024-10-11 16:45:28,635 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=492, PETRI_PLACES=219, PETRI_TRANSITIONS=213} [2024-10-11 16:45:28,636 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, -39 predicate places. [2024-10-11 16:45:28,636 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 213 transitions, 492 flow [2024-10-11 16:45:28,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 226.66666666666666) internal successors, (680), 3 states have internal predecessors, (680), 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) [2024-10-11 16:45:28,636 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:28,637 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:28,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 16:45:28,637 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:28,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:28,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1228595402, now seen corresponding path program 1 times [2024-10-11 16:45:28,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:28,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154450115] [2024-10-11 16:45:28,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:28,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:28,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:28,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:28,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154450115] [2024-10-11 16:45:28,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154450115] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:28,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:28,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 16:45:28,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405495457] [2024-10-11 16:45:28,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:28,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:28,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:28,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:28,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:28,673 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 271 [2024-10-11 16:45:28,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 213 transitions, 492 flow. Second operand has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 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) [2024-10-11 16:45:28,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:28,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 271 [2024-10-11 16:45:28,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:30,740 INFO L124 PetriNetUnfolderBase]: 5342/19618 cut-off events. [2024-10-11 16:45:30,741 INFO L125 PetriNetUnfolderBase]: For 4260/12460 co-relation queries the response was YES. [2024-10-11 16:45:30,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30270 conditions, 19618 events. 5342/19618 cut-off events. For 4260/12460 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 222454 event pairs, 4482 based on Foata normal form. 0/16493 useless extension candidates. Maximal degree in co-relation 25847. Up to 7458 conditions per place. [2024-10-11 16:45:30,883 INFO L140 encePairwiseOnDemand]: 268/271 looper letters, 29 selfloop transitions, 2 changer transitions 0/212 dead transitions. [2024-10-11 16:45:30,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 212 transitions, 552 flow [2024-10-11 16:45:30,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:30,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:30,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 685 transitions. [2024-10-11 16:45:30,886 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8425584255842559 [2024-10-11 16:45:30,886 INFO L175 Difference]: Start difference. First operand has 219 places, 213 transitions, 492 flow. Second operand 3 states and 685 transitions. [2024-10-11 16:45:30,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 212 transitions, 552 flow [2024-10-11 16:45:30,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 212 transitions, 551 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:30,892 INFO L231 Difference]: Finished difference. Result has 219 places, 212 transitions, 493 flow [2024-10-11 16:45:30,892 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=493, PETRI_PLACES=219, PETRI_TRANSITIONS=212} [2024-10-11 16:45:30,892 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, -39 predicate places. [2024-10-11 16:45:30,893 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 212 transitions, 493 flow [2024-10-11 16:45:30,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 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) [2024-10-11 16:45:30,893 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:30,893 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:30,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 16:45:30,893 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:30,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:30,894 INFO L85 PathProgramCache]: Analyzing trace with hash -2128781184, now seen corresponding path program 1 times [2024-10-11 16:45:30,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:30,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70967388] [2024-10-11 16:45:30,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:30,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:30,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:30,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:30,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70967388] [2024-10-11 16:45:30,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70967388] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:30,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:30,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 16:45:30,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228529483] [2024-10-11 16:45:30,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:30,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 16:45:30,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:30,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 16:45:30,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 16:45:30,942 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 271 [2024-10-11 16:45:30,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 212 transitions, 493 flow. Second operand has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 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) [2024-10-11 16:45:30,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:30,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 271 [2024-10-11 16:45:30,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:32,805 INFO L124 PetriNetUnfolderBase]: 3752/18416 cut-off events. [2024-10-11 16:45:32,805 INFO L125 PetriNetUnfolderBase]: For 4748/26624 co-relation queries the response was YES. [2024-10-11 16:45:32,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26174 conditions, 18416 events. 3752/18416 cut-off events. For 4748/26624 co-relation queries the response was YES. Maximal size of possible extension queue 530. Compared 218331 event pairs, 2730 based on Foata normal form. 2/15381 useless extension candidates. Maximal degree in co-relation 23379. Up to 5036 conditions per place. [2024-10-11 16:45:32,926 INFO L140 encePairwiseOnDemand]: 269/271 looper letters, 27 selfloop transitions, 0 changer transitions 1/211 dead transitions. [2024-10-11 16:45:32,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 211 transitions, 544 flow [2024-10-11 16:45:32,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 16:45:32,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 16:45:32,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 686 transitions. [2024-10-11 16:45:32,928 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8437884378843789 [2024-10-11 16:45:32,928 INFO L175 Difference]: Start difference. First operand has 219 places, 212 transitions, 493 flow. Second operand 3 states and 686 transitions. [2024-10-11 16:45:32,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 211 transitions, 544 flow [2024-10-11 16:45:32,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 211 transitions, 536 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-11 16:45:32,934 INFO L231 Difference]: Finished difference. Result has 218 places, 210 transitions, 480 flow [2024-10-11 16:45:32,934 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=480, PETRI_PLACES=218, PETRI_TRANSITIONS=210} [2024-10-11 16:45:32,935 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, -40 predicate places. [2024-10-11 16:45:32,935 INFO L471 AbstractCegarLoop]: Abstraction has has 218 places, 210 transitions, 480 flow [2024-10-11 16:45:32,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 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) [2024-10-11 16:45:32,935 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:32,935 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] [2024-10-11 16:45:32,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 16:45:32,935 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:32,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:32,936 INFO L85 PathProgramCache]: Analyzing trace with hash 398740360, now seen corresponding path program 1 times [2024-10-11 16:45:32,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:32,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959830844] [2024-10-11 16:45:32,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:32,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:32,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:33,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:33,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:33,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959830844] [2024-10-11 16:45:33,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959830844] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:33,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:33,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:33,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792935606] [2024-10-11 16:45:33,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:33,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:33,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:33,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:33,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:33,512 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 271 [2024-10-11 16:45:33,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 210 transitions, 480 flow. Second operand has 6 states, 6 states have (on average 195.66666666666666) internal successors, (1174), 6 states have internal predecessors, (1174), 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) [2024-10-11 16:45:33,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:33,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 271 [2024-10-11 16:45:33,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:39,865 INFO L124 PetriNetUnfolderBase]: 20988/66280 cut-off events. [2024-10-11 16:45:39,865 INFO L125 PetriNetUnfolderBase]: For 3106/3170 co-relation queries the response was YES. [2024-10-11 16:45:40,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105023 conditions, 66280 events. 20988/66280 cut-off events. For 3106/3170 co-relation queries the response was YES. Maximal size of possible extension queue 1408. Compared 834730 event pairs, 9754 based on Foata normal form. 0/59947 useless extension candidates. Maximal degree in co-relation 105014. Up to 29941 conditions per place. [2024-10-11 16:45:40,287 INFO L140 encePairwiseOnDemand]: 264/271 looper letters, 64 selfloop transitions, 5 changer transitions 3/225 dead transitions. [2024-10-11 16:45:40,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 225 transitions, 650 flow [2024-10-11 16:45:40,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:40,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:40,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1235 transitions. [2024-10-11 16:45:40,289 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7595325953259533 [2024-10-11 16:45:40,289 INFO L175 Difference]: Start difference. First operand has 218 places, 210 transitions, 480 flow. Second operand 6 states and 1235 transitions. [2024-10-11 16:45:40,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 225 transitions, 650 flow [2024-10-11 16:45:40,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 225 transitions, 648 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:40,297 INFO L231 Difference]: Finished difference. Result has 220 places, 206 transitions, 480 flow [2024-10-11 16:45:40,298 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=480, PETRI_PLACES=220, PETRI_TRANSITIONS=206} [2024-10-11 16:45:40,298 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, -38 predicate places. [2024-10-11 16:45:40,298 INFO L471 AbstractCegarLoop]: Abstraction has has 220 places, 206 transitions, 480 flow [2024-10-11 16:45:40,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 195.66666666666666) internal successors, (1174), 6 states have internal predecessors, (1174), 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) [2024-10-11 16:45:40,299 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:40,299 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] [2024-10-11 16:45:40,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 16:45:40,299 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:40,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:40,299 INFO L85 PathProgramCache]: Analyzing trace with hash 525668685, now seen corresponding path program 1 times [2024-10-11 16:45:40,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:40,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357344680] [2024-10-11 16:45:40,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:40,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:40,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:40,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:40,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357344680] [2024-10-11 16:45:40,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357344680] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:40,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:40,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 16:45:40,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137270048] [2024-10-11 16:45:40,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:40,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 16:45:40,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:40,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 16:45:40,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 16:45:40,444 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 271 [2024-10-11 16:45:40,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 206 transitions, 480 flow. Second operand has 4 states, 4 states have (on average 215.5) internal successors, (862), 4 states have internal predecessors, (862), 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) [2024-10-11 16:45:40,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:40,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 271 [2024-10-11 16:45:40,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:43,111 INFO L124 PetriNetUnfolderBase]: 7222/26805 cut-off events. [2024-10-11 16:45:43,111 INFO L125 PetriNetUnfolderBase]: For 3680/8506 co-relation queries the response was YES. [2024-10-11 16:45:43,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40888 conditions, 26805 events. 7222/26805 cut-off events. For 3680/8506 co-relation queries the response was YES. Maximal size of possible extension queue 659. Compared 315689 event pairs, 5043 based on Foata normal form. 137/23507 useless extension candidates. Maximal degree in co-relation 40879. Up to 5892 conditions per place. [2024-10-11 16:45:43,293 INFO L140 encePairwiseOnDemand]: 258/271 looper letters, 77 selfloop transitions, 11 changer transitions 0/259 dead transitions. [2024-10-11 16:45:43,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 259 transitions, 826 flow [2024-10-11 16:45:43,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 16:45:43,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 16:45:43,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 946 transitions. [2024-10-11 16:45:43,296 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8726937269372693 [2024-10-11 16:45:43,296 INFO L175 Difference]: Start difference. First operand has 220 places, 206 transitions, 480 flow. Second operand 4 states and 946 transitions. [2024-10-11 16:45:43,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 259 transitions, 826 flow [2024-10-11 16:45:43,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 259 transitions, 816 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:43,306 INFO L231 Difference]: Finished difference. Result has 217 places, 215 transitions, 552 flow [2024-10-11 16:45:43,306 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=552, PETRI_PLACES=217, PETRI_TRANSITIONS=215} [2024-10-11 16:45:43,306 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, -41 predicate places. [2024-10-11 16:45:43,306 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 215 transitions, 552 flow [2024-10-11 16:45:43,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 215.5) internal successors, (862), 4 states have internal predecessors, (862), 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) [2024-10-11 16:45:43,307 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:43,307 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:43,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 16:45:43,308 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:43,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:43,308 INFO L85 PathProgramCache]: Analyzing trace with hash -129687532, now seen corresponding path program 1 times [2024-10-11 16:45:43,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:43,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215650244] [2024-10-11 16:45:43,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:43,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:43,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:43,409 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:43,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:43,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215650244] [2024-10-11 16:45:43,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215650244] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 16:45:43,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432789167] [2024-10-11 16:45:43,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:43,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 16:45:43,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 16:45:43,412 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 16:45:43,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 16:45:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:43,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 16:45:43,505 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 16:45:43,696 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:43,699 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 16:45:43,801 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:43,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432789167] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 16:45:43,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 16:45:43,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-10-11 16:45:43,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536257104] [2024-10-11 16:45:43,804 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 16:45:43,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 16:45:43,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:43,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 16:45:43,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-10-11 16:45:44,244 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 271 [2024-10-11 16:45:44,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 215 transitions, 552 flow. Second operand has 13 states, 13 states have (on average 212.15384615384616) internal successors, (2758), 13 states have internal predecessors, (2758), 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) [2024-10-11 16:45:44,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:44,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 271 [2024-10-11 16:45:44,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:46,178 INFO L124 PetriNetUnfolderBase]: 4735/17470 cut-off events. [2024-10-11 16:45:46,178 INFO L125 PetriNetUnfolderBase]: For 3262/3806 co-relation queries the response was YES. [2024-10-11 16:45:46,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28045 conditions, 17470 events. 4735/17470 cut-off events. For 3262/3806 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 185214 event pairs, 2101 based on Foata normal form. 12/15416 useless extension candidates. Maximal degree in co-relation 28034. Up to 5348 conditions per place. [2024-10-11 16:45:46,330 INFO L140 encePairwiseOnDemand]: 261/271 looper letters, 68 selfloop transitions, 13 changer transitions 0/248 dead transitions. [2024-10-11 16:45:46,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 248 transitions, 762 flow [2024-10-11 16:45:46,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 16:45:46,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-11 16:45:46,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2393 transitions. [2024-10-11 16:45:46,334 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.802750754780275 [2024-10-11 16:45:46,334 INFO L175 Difference]: Start difference. First operand has 217 places, 215 transitions, 552 flow. Second operand 11 states and 2393 transitions. [2024-10-11 16:45:46,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 248 transitions, 762 flow [2024-10-11 16:45:46,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 248 transitions, 744 flow, removed 8 selfloop flow, removed 1 redundant places. [2024-10-11 16:45:46,546 INFO L231 Difference]: Finished difference. Result has 229 places, 214 transitions, 551 flow [2024-10-11 16:45:46,546 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=492, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=551, PETRI_PLACES=229, PETRI_TRANSITIONS=214} [2024-10-11 16:45:46,546 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, -29 predicate places. [2024-10-11 16:45:46,546 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 214 transitions, 551 flow [2024-10-11 16:45:46,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 212.15384615384616) internal successors, (2758), 13 states have internal predecessors, (2758), 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) [2024-10-11 16:45:46,547 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:46,547 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:46,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 16:45:46,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-10-11 16:45:46,748 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:46,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:46,749 INFO L85 PathProgramCache]: Analyzing trace with hash -237320425, now seen corresponding path program 1 times [2024-10-11 16:45:46,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:46,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728748971] [2024-10-11 16:45:46,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:46,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:46,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:46,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:46,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:46,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728748971] [2024-10-11 16:45:46,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728748971] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:46,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:46,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:46,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503658346] [2024-10-11 16:45:46,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:46,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 16:45:46,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:46,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 16:45:46,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-11 16:45:47,090 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 271 [2024-10-11 16:45:47,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 214 transitions, 551 flow. Second operand has 6 states, 6 states have (on average 195.83333333333334) internal successors, (1175), 6 states have internal predecessors, (1175), 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) [2024-10-11 16:45:47,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:47,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 271 [2024-10-11 16:45:47,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:49,949 INFO L124 PetriNetUnfolderBase]: 11802/27297 cut-off events. [2024-10-11 16:45:49,949 INFO L125 PetriNetUnfolderBase]: For 1771/1771 co-relation queries the response was YES. [2024-10-11 16:45:50,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46243 conditions, 27297 events. 11802/27297 cut-off events. For 1771/1771 co-relation queries the response was YES. Maximal size of possible extension queue 448. Compared 248745 event pairs, 5149 based on Foata normal form. 0/25591 useless extension candidates. Maximal degree in co-relation 46230. Up to 14184 conditions per place. [2024-10-11 16:45:50,213 INFO L140 encePairwiseOnDemand]: 264/271 looper letters, 83 selfloop transitions, 6 changer transitions 0/245 dead transitions. [2024-10-11 16:45:50,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 245 transitions, 791 flow [2024-10-11 16:45:50,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 16:45:50,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 16:45:50,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1251 transitions. [2024-10-11 16:45:50,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7693726937269373 [2024-10-11 16:45:50,216 INFO L175 Difference]: Start difference. First operand has 229 places, 214 transitions, 551 flow. Second operand 6 states and 1251 transitions. [2024-10-11 16:45:50,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 245 transitions, 791 flow [2024-10-11 16:45:50,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 245 transitions, 781 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-10-11 16:45:50,224 INFO L231 Difference]: Finished difference. Result has 231 places, 213 transitions, 551 flow [2024-10-11 16:45:50,224 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=551, PETRI_PLACES=231, PETRI_TRANSITIONS=213} [2024-10-11 16:45:50,225 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, -27 predicate places. [2024-10-11 16:45:50,225 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 213 transitions, 551 flow [2024-10-11 16:45:50,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 195.83333333333334) internal successors, (1175), 6 states have internal predecessors, (1175), 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) [2024-10-11 16:45:50,226 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:50,226 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:50,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-11 16:45:50,227 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:50,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:50,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1969723891, now seen corresponding path program 1 times [2024-10-11 16:45:50,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:50,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008838250] [2024-10-11 16:45:50,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:50,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:50,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:50,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:50,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008838250] [2024-10-11 16:45:50,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008838250] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:50,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:50,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:50,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532254153] [2024-10-11 16:45:50,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:50,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 16:45:50,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:50,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 16:45:50,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 16:45:50,448 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 271 [2024-10-11 16:45:50,449 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 213 transitions, 551 flow. Second operand has 5 states, 5 states have (on average 213.8) internal successors, (1069), 5 states have internal predecessors, (1069), 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) [2024-10-11 16:45:50,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:50,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 271 [2024-10-11 16:45:50,450 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 16:45:53,177 INFO L124 PetriNetUnfolderBase]: 6048/25635 cut-off events. [2024-10-11 16:45:53,177 INFO L125 PetriNetUnfolderBase]: For 3893/4765 co-relation queries the response was YES. [2024-10-11 16:45:53,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38766 conditions, 25635 events. 6048/25635 cut-off events. For 3893/4765 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 304558 event pairs, 2142 based on Foata normal form. 16/22605 useless extension candidates. Maximal degree in co-relation 38752. Up to 3393 conditions per place. [2024-10-11 16:45:53,339 INFO L140 encePairwiseOnDemand]: 259/271 looper letters, 88 selfloop transitions, 17 changer transitions 0/277 dead transitions. [2024-10-11 16:45:53,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 277 transitions, 965 flow [2024-10-11 16:45:53,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 16:45:53,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 16:45:53,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1161 transitions. [2024-10-11 16:45:53,342 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8568265682656827 [2024-10-11 16:45:53,342 INFO L175 Difference]: Start difference. First operand has 231 places, 213 transitions, 551 flow. Second operand 5 states and 1161 transitions. [2024-10-11 16:45:53,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 277 transitions, 965 flow [2024-10-11 16:45:53,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 277 transitions, 953 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 16:45:53,350 INFO L231 Difference]: Finished difference. Result has 234 places, 227 transitions, 677 flow [2024-10-11 16:45:53,350 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=271, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=677, PETRI_PLACES=234, PETRI_TRANSITIONS=227} [2024-10-11 16:45:53,351 INFO L277 CegarLoopForPetriNet]: 258 programPoint places, -24 predicate places. [2024-10-11 16:45:53,351 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 227 transitions, 677 flow [2024-10-11 16:45:53,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 213.8) internal successors, (1069), 5 states have internal predecessors, (1069), 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) [2024-10-11 16:45:53,351 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 16:45:53,351 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 16:45:53,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-11 16:45:53,351 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [setThreadErr0ASSERT_VIOLATIONDATA_RACE, setThreadErr1ASSERT_VIOLATIONDATA_RACE, checkThreadErr0ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2024-10-11 16:45:53,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 16:45:53,352 INFO L85 PathProgramCache]: Analyzing trace with hash -830215144, now seen corresponding path program 1 times [2024-10-11 16:45:53,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 16:45:53,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204332517] [2024-10-11 16:45:53,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 16:45:53,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 16:45:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 16:45:53,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 16:45:53,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 16:45:53,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204332517] [2024-10-11 16:45:53,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204332517] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 16:45:53,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 16:45:53,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 16:45:53,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819221984] [2024-10-11 16:45:53,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 16:45:53,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 16:45:53,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 16:45:53,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 16:45:53,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 16:45:53,556 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 271 [2024-10-11 16:45:53,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 227 transitions, 677 flow. Second operand has 5 states, 5 states have (on average 214.0) internal successors, (1070), 5 states have internal predecessors, (1070), 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) [2024-10-11 16:45:53,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 16:45:53,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 271 [2024-10-11 16:45:53,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand