./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/goblint-regression/09-regions_18-nested_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf117fc0bf8ae8b9ef4bb89156c7168763fcd2ba3d8567cd686924f85ad04dca --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:51:03,952 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:51:04,023 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:51:04,027 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:51:04,027 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:51:04,050 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:51:04,052 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:51:04,052 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:51:04,053 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:51:04,054 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:51:04,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:51:04,055 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:51:04,055 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:51:04,055 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:51:04,057 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:51:04,057 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:51:04,057 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:51:04,057 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:51:04,058 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:51:04,058 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:51:04,058 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:51:04,059 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:51:04,059 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:51:04,061 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:51:04,061 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:51:04,061 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:51:04,062 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:51:04,062 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:51:04,062 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:51:04,062 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:51:04,062 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:51:04,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:51:04,063 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:51:04,063 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:51:04,063 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:51:04,063 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:51:04,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:51:04,063 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:51:04,064 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:51:04,064 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:51:04,064 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:51:04,065 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf117fc0bf8ae8b9ef4bb89156c7168763fcd2ba3d8567cd686924f85ad04dca [2024-10-13 09:51:04,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:51:04,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:51:04,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:51:04,297 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:51:04,297 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:51:04,298 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i [2024-10-13 09:51:05,670 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:51:05,910 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:51:05,911 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i [2024-10-13 09:51:05,935 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/259faedc6/838c32f043634381bab202d7a258f4ad/FLAGd94d9d014 [2024-10-13 09:51:05,951 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/259faedc6/838c32f043634381bab202d7a258f4ad [2024-10-13 09:51:05,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:51:05,956 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:51:05,958 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:51:05,958 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:51:05,964 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:51:05,965 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:51:05" (1/1) ... [2024-10-13 09:51:05,965 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41dfe5b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:05, skipping insertion in model container [2024-10-13 09:51:05,966 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:51:05" (1/1) ... [2024-10-13 09:51:06,011 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:51:06,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:51:06,518 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:51:06,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:51:06,608 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:51:06,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:06 WrapperNode [2024-10-13 09:51:06,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:51:06,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:51:06,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:51:06,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:51:06,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:06" (1/1) ... [2024-10-13 09:51:06,630 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:06" (1/1) ... [2024-10-13 09:51:06,655 INFO L138 Inliner]: procedures = 370, calls = 27, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 231 [2024-10-13 09:51:06,656 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:51:06,656 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:51:06,656 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:51:06,656 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:51:06,663 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:06" (1/1) ... [2024-10-13 09:51:06,664 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:06" (1/1) ... [2024-10-13 09:51:06,668 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:06" (1/1) ... [2024-10-13 09:51:06,669 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:06" (1/1) ... [2024-10-13 09:51:06,681 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:06" (1/1) ... [2024-10-13 09:51:06,685 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:06" (1/1) ... [2024-10-13 09:51:06,687 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:06" (1/1) ... [2024-10-13 09:51:06,688 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:06" (1/1) ... [2024-10-13 09:51:06,692 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:51:06,693 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:51:06,693 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:51:06,693 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:51:06,698 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:06" (1/1) ... [2024-10-13 09:51:06,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:51:06,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:06,742 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 09:51:06,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 09:51:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-13 09:51:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 09:51:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-13 09:51:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-13 09:51:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 09:51:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 09:51:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:51:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-13 09:51:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-13 09:51:06,781 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-13 09:51:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:51:06,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:51:06,782 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:51:06,892 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:51:06,894 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:51:07,265 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:51:07,266 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:51:07,299 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:51:07,299 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 09:51:07,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:51:07 BoogieIcfgContainer [2024-10-13 09:51:07,300 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:51:07,301 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:51:07,302 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:51:07,304 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:51:07,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:51:05" (1/3) ... [2024-10-13 09:51:07,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738f88ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:51:07, skipping insertion in model container [2024-10-13 09:51:07,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:06" (2/3) ... [2024-10-13 09:51:07,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@738f88ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:51:07, skipping insertion in model container [2024-10-13 09:51:07,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:51:07" (3/3) ... [2024-10-13 09:51:07,307 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_18-nested_rc.i [2024-10-13 09:51:07,321 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:51:07,321 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-10-13 09:51:07,322 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:51:07,422 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:51:07,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 273 places, 273 transitions, 550 flow [2024-10-13 09:51:07,524 INFO L124 PetriNetUnfolderBase]: 4/272 cut-off events. [2024-10-13 09:51:07,525 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:51:07,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 272 events. 4/272 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 113 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 144. Up to 2 conditions per place. [2024-10-13 09:51:07,533 INFO L82 GeneralOperation]: Start removeDead. Operand has 273 places, 273 transitions, 550 flow [2024-10-13 09:51:07,540 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 272 places, 272 transitions, 547 flow [2024-10-13 09:51:07,552 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:51:07,559 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;@6f042628, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:51:07,559 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-10-13 09:51:07,567 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:51:07,567 INFO L124 PetriNetUnfolderBase]: 3/44 cut-off events. [2024-10-13 09:51:07,567 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:51:07,568 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:07,570 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] [2024-10-13 09:51:07,572 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:07,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:07,577 INFO L85 PathProgramCache]: Analyzing trace with hash 598431586, now seen corresponding path program 1 times [2024-10-13 09:51:07,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:07,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855330260] [2024-10-13 09:51:07,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:07,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:07,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:07,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:07,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:07,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855330260] [2024-10-13 09:51:07,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855330260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:07,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:07,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:51:07,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589224236] [2024-10-13 09:51:07,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:07,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:51:07,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:07,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:51:07,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:51:07,910 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 259 out of 273 [2024-10-13 09:51:07,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 272 transitions, 547 flow. Second operand has 3 states, 3 states have (on average 260.3333333333333) internal successors, (781), 3 states have internal predecessors, (781), 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) [2024-10-13 09:51:07,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:07,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 259 of 273 [2024-10-13 09:51:07,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:07,989 INFO L124 PetriNetUnfolderBase]: 7/349 cut-off events. [2024-10-13 09:51:07,989 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:51:07,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 349 events. 7/349 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 403 event pairs, 6 based on Foata normal form. 5/324 useless extension candidates. Maximal degree in co-relation 219. Up to 24 conditions per place. [2024-10-13 09:51:07,992 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 10 selfloop transitions, 2 changer transitions 1/270 dead transitions. [2024-10-13 09:51:07,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 270 transitions, 567 flow [2024-10-13 09:51:07,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:51:07,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:51:08,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 794 transitions. [2024-10-13 09:51:08,012 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9694749694749695 [2024-10-13 09:51:08,014 INFO L175 Difference]: Start difference. First operand has 272 places, 272 transitions, 547 flow. Second operand 3 states and 794 transitions. [2024-10-13 09:51:08,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 270 transitions, 567 flow [2024-10-13 09:51:08,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 270 transitions, 566 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:51:08,025 INFO L231 Difference]: Finished difference. Result has 274 places, 269 transitions, 550 flow [2024-10-13 09:51:08,027 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=267, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=550, PETRI_PLACES=274, PETRI_TRANSITIONS=269} [2024-10-13 09:51:08,031 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 2 predicate places. [2024-10-13 09:51:08,031 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 269 transitions, 550 flow [2024-10-13 09:51:08,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 260.3333333333333) internal successors, (781), 3 states have internal predecessors, (781), 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) [2024-10-13 09:51:08,032 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:08,032 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] [2024-10-13 09:51:08,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:51:08,033 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:08,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:08,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1023670055, now seen corresponding path program 1 times [2024-10-13 09:51:08,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:08,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813705001] [2024-10-13 09:51:08,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:08,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:08,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:08,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:08,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813705001] [2024-10-13 09:51:08,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813705001] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:08,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184277972] [2024-10-13 09:51:08,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:08,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:08,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:08,210 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:08,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 09:51:08,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:08,339 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 09:51:08,348 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:08,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:08,409 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:51:08,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:08,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184277972] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:51:08,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:51:08,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-13 09:51:08,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551745873] [2024-10-13 09:51:08,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:51:08,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:51:08,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:08,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:51:08,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-13 09:51:08,485 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 273 [2024-10-13 09:51:08,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 269 transitions, 550 flow. Second operand has 10 states, 10 states have (on average 257.8) internal successors, (2578), 10 states have internal predecessors, (2578), 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) [2024-10-13 09:51:08,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:08,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 273 [2024-10-13 09:51:08,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:08,597 INFO L124 PetriNetUnfolderBase]: 7/355 cut-off events. [2024-10-13 09:51:08,597 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:51:08,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 355 events. 7/355 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 397 event pairs, 6 based on Foata normal form. 2/328 useless extension candidates. Maximal degree in co-relation 377. Up to 24 conditions per place. [2024-10-13 09:51:08,599 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 14 selfloop transitions, 9 changer transitions 0/277 dead transitions. [2024-10-13 09:51:08,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 277 transitions, 614 flow [2024-10-13 09:51:08,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 09:51:08,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 09:51:08,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2329 transitions. [2024-10-13 09:51:08,604 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9479039479039479 [2024-10-13 09:51:08,604 INFO L175 Difference]: Start difference. First operand has 274 places, 269 transitions, 550 flow. Second operand 9 states and 2329 transitions. [2024-10-13 09:51:08,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 277 transitions, 614 flow [2024-10-13 09:51:08,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 277 transitions, 612 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:51:08,609 INFO L231 Difference]: Finished difference. Result has 283 places, 275 transitions, 598 flow [2024-10-13 09:51:08,609 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=598, PETRI_PLACES=283, PETRI_TRANSITIONS=275} [2024-10-13 09:51:08,610 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 11 predicate places. [2024-10-13 09:51:08,610 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 275 transitions, 598 flow [2024-10-13 09:51:08,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 257.8) internal successors, (2578), 10 states have internal predecessors, (2578), 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) [2024-10-13 09:51:08,611 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:08,611 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:08,625 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 09:51:08,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:08,817 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:08,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:08,820 INFO L85 PathProgramCache]: Analyzing trace with hash -943925241, now seen corresponding path program 2 times [2024-10-13 09:51:08,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:08,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166517720] [2024-10-13 09:51:08,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:08,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:08,973 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:08,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:08,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166517720] [2024-10-13 09:51:08,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166517720] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:08,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179829916] [2024-10-13 09:51:08,974 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:51:08,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:08,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:08,976 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:08,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 09:51:09,043 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:51:09,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:51:09,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-13 09:51:09,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:09,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-13 09:51:09,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-10-13 09:51:09,143 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:51:09,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-10-13 09:51:09,182 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:51:09,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-10-13 09:51:09,212 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-13 09:51:09,213 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:51:09,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179829916] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:09,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:51:09,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-10-13 09:51:09,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87781503] [2024-10-13 09:51:09,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:09,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:09,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:09,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:09,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:51:09,604 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 273 [2024-10-13 09:51:09,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 275 transitions, 598 flow. Second operand has 6 states, 6 states have (on average 188.33333333333334) internal successors, (1130), 6 states have internal predecessors, (1130), 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) [2024-10-13 09:51:09,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:09,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 273 [2024-10-13 09:51:09,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:10,102 INFO L124 PetriNetUnfolderBase]: 365/1639 cut-off events. [2024-10-13 09:51:10,102 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-13 09:51:10,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2481 conditions, 1639 events. 365/1639 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9287 event pairs, 364 based on Foata normal form. 0/1514 useless extension candidates. Maximal degree in co-relation 2428. Up to 800 conditions per place. [2024-10-13 09:51:10,112 INFO L140 encePairwiseOnDemand]: 261/273 looper letters, 71 selfloop transitions, 10 changer transitions 0/273 dead transitions. [2024-10-13 09:51:10,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 273 transitions, 756 flow [2024-10-13 09:51:10,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:10,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:10,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1205 transitions. [2024-10-13 09:51:10,116 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7356532356532357 [2024-10-13 09:51:10,116 INFO L175 Difference]: Start difference. First operand has 283 places, 275 transitions, 598 flow. Second operand 6 states and 1205 transitions. [2024-10-13 09:51:10,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 273 transitions, 756 flow [2024-10-13 09:51:10,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 273 transitions, 750 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-13 09:51:10,122 INFO L231 Difference]: Finished difference. Result has 285 places, 273 transitions, 608 flow [2024-10-13 09:51:10,122 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=608, PETRI_PLACES=285, PETRI_TRANSITIONS=273} [2024-10-13 09:51:10,123 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 13 predicate places. [2024-10-13 09:51:10,123 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 273 transitions, 608 flow [2024-10-13 09:51:10,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.33333333333334) internal successors, (1130), 6 states have internal predecessors, (1130), 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) [2024-10-13 09:51:10,123 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:10,124 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:10,137 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 09:51:10,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-13 09:51:10,324 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:10,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:10,325 INFO L85 PathProgramCache]: Analyzing trace with hash -359144855, now seen corresponding path program 1 times [2024-10-13 09:51:10,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:10,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500006149] [2024-10-13 09:51:10,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:10,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:10,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:10,431 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:10,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:10,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500006149] [2024-10-13 09:51:10,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500006149] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:10,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590876691] [2024-10-13 09:51:10,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:10,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:10,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:10,434 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:10,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 09:51:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:10,561 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 09:51:10,563 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:10,605 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:10,606 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:51:10,693 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:10,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590876691] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:51:10,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:51:10,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-13 09:51:10,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285424903] [2024-10-13 09:51:10,696 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:51:10,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-13 09:51:10,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:10,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-13 09:51:10,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-13 09:51:10,730 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 273 [2024-10-13 09:51:10,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 273 transitions, 608 flow. Second operand has 18 states, 18 states have (on average 257.8888888888889) internal successors, (4642), 18 states have internal predecessors, (4642), 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) [2024-10-13 09:51:10,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:10,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 273 [2024-10-13 09:51:10,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:10,937 INFO L124 PetriNetUnfolderBase]: 7/373 cut-off events. [2024-10-13 09:51:10,938 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-10-13 09:51:10,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 489 conditions, 373 events. 7/373 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 398 event pairs, 6 based on Foata normal form. 4/350 useless extension candidates. Maximal degree in co-relation 363. Up to 24 conditions per place. [2024-10-13 09:51:10,939 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 18 selfloop transitions, 21 changer transitions 0/291 dead transitions. [2024-10-13 09:51:10,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 291 transitions, 774 flow [2024-10-13 09:51:10,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-13 09:51:10,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-13 09:51:10,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5419 transitions. [2024-10-13 09:51:10,948 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9452293738008024 [2024-10-13 09:51:10,949 INFO L175 Difference]: Start difference. First operand has 285 places, 273 transitions, 608 flow. Second operand 21 states and 5419 transitions. [2024-10-13 09:51:10,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 291 transitions, 774 flow [2024-10-13 09:51:10,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 291 transitions, 754 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:10,954 INFO L231 Difference]: Finished difference. Result has 305 places, 286 transitions, 718 flow [2024-10-13 09:51:10,955 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=718, PETRI_PLACES=305, PETRI_TRANSITIONS=286} [2024-10-13 09:51:10,956 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 33 predicate places. [2024-10-13 09:51:10,956 INFO L471 AbstractCegarLoop]: Abstraction has has 305 places, 286 transitions, 718 flow [2024-10-13 09:51:10,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 257.8888888888889) internal successors, (4642), 18 states have internal predecessors, (4642), 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) [2024-10-13 09:51:10,959 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:10,959 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:10,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-13 09:51:11,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:11,161 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:11,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:11,162 INFO L85 PathProgramCache]: Analyzing trace with hash 377429033, now seen corresponding path program 2 times [2024-10-13 09:51:11,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:11,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021239691] [2024-10-13 09:51:11,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:11,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:11,415 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:11,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:11,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021239691] [2024-10-13 09:51:11,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021239691] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:11,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66446828] [2024-10-13 09:51:11,416 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:51:11,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:11,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:11,418 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:11,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 09:51:11,514 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:51:11,514 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:51:11,515 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-13 09:51:11,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:11,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-13 09:51:11,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-10-13 09:51:11,569 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:51:11,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2024-10-13 09:51:11,598 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:51:11,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2024-10-13 09:51:11,620 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-13 09:51:11,620 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:51:11,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66446828] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:11,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:51:11,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-13 09:51:11,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002988054] [2024-10-13 09:51:11,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:11,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:11,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:11,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:11,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-13 09:51:12,166 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 273 [2024-10-13 09:51:12,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 286 transitions, 718 flow. Second operand has 6 states, 6 states have (on average 188.33333333333334) internal successors, (1130), 6 states have internal predecessors, (1130), 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) [2024-10-13 09:51:12,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:12,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 273 [2024-10-13 09:51:12,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:12,552 INFO L124 PetriNetUnfolderBase]: 365/1657 cut-off events. [2024-10-13 09:51:12,552 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-10-13 09:51:12,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2562 conditions, 1657 events. 365/1657 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9243 event pairs, 364 based on Foata normal form. 0/1534 useless extension candidates. Maximal degree in co-relation 2430. Up to 800 conditions per place. [2024-10-13 09:51:12,559 INFO L140 encePairwiseOnDemand]: 261/273 looper letters, 71 selfloop transitions, 10 changer transitions 0/284 dead transitions. [2024-10-13 09:51:12,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 284 transitions, 876 flow [2024-10-13 09:51:12,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:12,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:12,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1205 transitions. [2024-10-13 09:51:12,561 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7356532356532357 [2024-10-13 09:51:12,562 INFO L175 Difference]: Start difference. First operand has 305 places, 286 transitions, 718 flow. Second operand 6 states and 1205 transitions. [2024-10-13 09:51:12,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 284 transitions, 876 flow [2024-10-13 09:51:12,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 284 transitions, 852 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-13 09:51:12,568 INFO L231 Difference]: Finished difference. Result has 302 places, 284 transitions, 710 flow [2024-10-13 09:51:12,568 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=710, PETRI_PLACES=302, PETRI_TRANSITIONS=284} [2024-10-13 09:51:12,569 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 30 predicate places. [2024-10-13 09:51:12,569 INFO L471 AbstractCegarLoop]: Abstraction has has 302 places, 284 transitions, 710 flow [2024-10-13 09:51:12,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 188.33333333333334) internal successors, (1130), 6 states have internal predecessors, (1130), 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) [2024-10-13 09:51:12,571 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:12,571 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:12,584 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 09:51:12,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:12,772 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:12,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:12,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1054632777, now seen corresponding path program 1 times [2024-10-13 09:51:12,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:12,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633185579] [2024-10-13 09:51:12,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:12,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:13,442 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:13,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:13,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633185579] [2024-10-13 09:51:13,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633185579] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:13,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435138766] [2024-10-13 09:51:13,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:13,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:13,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:13,445 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:13,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 09:51:13,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:13,538 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 09:51:13,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:13,648 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:13,648 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:51:13,926 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:13,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435138766] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:51:13,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:51:13,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-13 09:51:13,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612940592] [2024-10-13 09:51:13,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:51:13,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-13 09:51:13,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:13,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-13 09:51:13,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-13 09:51:13,969 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 273 [2024-10-13 09:51:13,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 284 transitions, 710 flow. Second operand has 23 states, 23 states have (on average 258.0) internal successors, (5934), 23 states have internal predecessors, (5934), 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) [2024-10-13 09:51:13,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:13,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 273 [2024-10-13 09:51:13,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:14,240 INFO L124 PetriNetUnfolderBase]: 7/386 cut-off events. [2024-10-13 09:51:14,241 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-10-13 09:51:14,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 577 conditions, 386 events. 7/386 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 399 event pairs, 6 based on Foata normal form. 3/364 useless extension candidates. Maximal degree in co-relation 368. Up to 24 conditions per place. [2024-10-13 09:51:14,242 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 21 selfloop transitions, 30 changer transitions 0/301 dead transitions. [2024-10-13 09:51:14,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 301 transitions, 934 flow [2024-10-13 09:51:14,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-13 09:51:14,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-13 09:51:14,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7734 transitions. [2024-10-13 09:51:14,253 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9443223443223443 [2024-10-13 09:51:14,253 INFO L175 Difference]: Start difference. First operand has 302 places, 284 transitions, 710 flow. Second operand 30 states and 7734 transitions. [2024-10-13 09:51:14,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 301 transitions, 934 flow [2024-10-13 09:51:14,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 301 transitions, 914 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:14,282 INFO L231 Difference]: Finished difference. Result has 330 places, 294 transitions, 842 flow [2024-10-13 09:51:14,283 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=842, PETRI_PLACES=330, PETRI_TRANSITIONS=294} [2024-10-13 09:51:14,283 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 58 predicate places. [2024-10-13 09:51:14,283 INFO L471 AbstractCegarLoop]: Abstraction has has 330 places, 294 transitions, 842 flow [2024-10-13 09:51:14,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 258.0) internal successors, (5934), 23 states have internal predecessors, (5934), 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) [2024-10-13 09:51:14,285 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:14,285 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:14,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 09:51:14,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:14,490 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:14,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:14,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1927391996, now seen corresponding path program 2 times [2024-10-13 09:51:14,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:14,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195711233] [2024-10-13 09:51:14,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:14,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:14,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:14,880 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:14,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:14,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195711233] [2024-10-13 09:51:14,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195711233] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:14,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:14,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:14,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214618830] [2024-10-13 09:51:14,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:14,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:14,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:14,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:14,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:15,172 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 273 [2024-10-13 09:51:15,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 294 transitions, 842 flow. Second operand has 6 states, 6 states have (on average 185.83333333333334) internal successors, (1115), 6 states have internal predecessors, (1115), 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) [2024-10-13 09:51:15,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:15,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 273 [2024-10-13 09:51:15,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:15,456 INFO L124 PetriNetUnfolderBase]: 417/1851 cut-off events. [2024-10-13 09:51:15,456 INFO L125 PetriNetUnfolderBase]: For 118/118 co-relation queries the response was YES. [2024-10-13 09:51:15,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2933 conditions, 1851 events. 417/1851 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10712 event pairs, 416 based on Foata normal form. 0/1719 useless extension candidates. Maximal degree in co-relation 2722. Up to 914 conditions per place. [2024-10-13 09:51:15,463 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 81 selfloop transitions, 5 changer transitions 0/293 dead transitions. [2024-10-13 09:51:15,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 293 transitions, 1012 flow [2024-10-13 09:51:15,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:15,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:15,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1185 transitions. [2024-10-13 09:51:15,465 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7234432234432234 [2024-10-13 09:51:15,465 INFO L175 Difference]: Start difference. First operand has 330 places, 294 transitions, 842 flow. Second operand 6 states and 1185 transitions. [2024-10-13 09:51:15,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 293 transitions, 1012 flow [2024-10-13 09:51:15,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 293 transitions, 966 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-10-13 09:51:15,470 INFO L231 Difference]: Finished difference. Result has 316 places, 293 transitions, 804 flow [2024-10-13 09:51:15,470 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=804, PETRI_PLACES=316, PETRI_TRANSITIONS=293} [2024-10-13 09:51:15,471 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 44 predicate places. [2024-10-13 09:51:15,471 INFO L471 AbstractCegarLoop]: Abstraction has has 316 places, 293 transitions, 804 flow [2024-10-13 09:51:15,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.83333333333334) internal successors, (1115), 6 states have internal predecessors, (1115), 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) [2024-10-13 09:51:15,472 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:15,472 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:15,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 09:51:15,472 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:15,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:15,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1099792604, now seen corresponding path program 1 times [2024-10-13 09:51:15,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:15,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613043970] [2024-10-13 09:51:15,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:15,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:15,987 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:15,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:15,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613043970] [2024-10-13 09:51:15,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613043970] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:15,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:15,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:15,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592376363] [2024-10-13 09:51:15,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:15,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:15,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:15,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:15,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:16,352 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 273 [2024-10-13 09:51:16,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 293 transitions, 804 flow. Second operand has 6 states, 6 states have (on average 208.83333333333334) internal successors, (1253), 6 states have internal predecessors, (1253), 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) [2024-10-13 09:51:16,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:16,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 273 [2024-10-13 09:51:16,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:16,712 INFO L124 PetriNetUnfolderBase]: 257/1701 cut-off events. [2024-10-13 09:51:16,713 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2024-10-13 09:51:16,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2431 conditions, 1701 events. 257/1701 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10124 event pairs, 34 based on Foata normal form. 0/1572 useless extension candidates. Maximal degree in co-relation 2241. Up to 436 conditions per place. [2024-10-13 09:51:16,723 INFO L140 encePairwiseOnDemand]: 244/273 looper letters, 68 selfloop transitions, 75 changer transitions 0/370 dead transitions. [2024-10-13 09:51:16,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 370 transitions, 1244 flow [2024-10-13 09:51:16,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:16,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:16,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1369 transitions. [2024-10-13 09:51:16,726 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8357753357753358 [2024-10-13 09:51:16,726 INFO L175 Difference]: Start difference. First operand has 316 places, 293 transitions, 804 flow. Second operand 6 states and 1369 transitions. [2024-10-13 09:51:16,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 370 transitions, 1244 flow [2024-10-13 09:51:16,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 370 transitions, 1234 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:16,732 INFO L231 Difference]: Finished difference. Result has 320 places, 361 transitions, 1274 flow [2024-10-13 09:51:16,733 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1274, PETRI_PLACES=320, PETRI_TRANSITIONS=361} [2024-10-13 09:51:16,734 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 48 predicate places. [2024-10-13 09:51:16,734 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 361 transitions, 1274 flow [2024-10-13 09:51:16,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 208.83333333333334) internal successors, (1253), 6 states have internal predecessors, (1253), 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) [2024-10-13 09:51:16,734 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:16,735 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:16,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 09:51:16,735 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:16,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:16,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1613199059, now seen corresponding path program 1 times [2024-10-13 09:51:16,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:16,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261798427] [2024-10-13 09:51:16,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:16,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:16,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:17,112 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:17,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:17,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261798427] [2024-10-13 09:51:17,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261798427] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:17,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:17,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:17,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599956702] [2024-10-13 09:51:17,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:17,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:17,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:17,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:17,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:17,531 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 273 [2024-10-13 09:51:17,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 361 transitions, 1274 flow. Second operand has 6 states, 6 states have (on average 215.5) internal successors, (1293), 6 states have internal predecessors, (1293), 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) [2024-10-13 09:51:17,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:17,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 273 [2024-10-13 09:51:17,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:17,713 INFO L124 PetriNetUnfolderBase]: 209/1566 cut-off events. [2024-10-13 09:51:17,713 INFO L125 PetriNetUnfolderBase]: For 477/499 co-relation queries the response was YES. [2024-10-13 09:51:17,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2687 conditions, 1566 events. 209/1566 cut-off events. For 477/499 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 8679 event pairs, 53 based on Foata normal form. 0/1451 useless extension candidates. Maximal degree in co-relation 2495. Up to 336 conditions per place. [2024-10-13 09:51:17,721 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 117 selfloop transitions, 5 changer transitions 0/360 dead transitions. [2024-10-13 09:51:17,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 360 transitions, 1516 flow [2024-10-13 09:51:17,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:17,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:17,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1325 transitions. [2024-10-13 09:51:17,724 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8089133089133089 [2024-10-13 09:51:17,724 INFO L175 Difference]: Start difference. First operand has 320 places, 361 transitions, 1274 flow. Second operand 6 states and 1325 transitions. [2024-10-13 09:51:17,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 360 transitions, 1516 flow [2024-10-13 09:51:17,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 360 transitions, 1516 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:51:17,731 INFO L231 Difference]: Finished difference. Result has 324 places, 360 transitions, 1282 flow [2024-10-13 09:51:17,732 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1272, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1282, PETRI_PLACES=324, PETRI_TRANSITIONS=360} [2024-10-13 09:51:17,732 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 52 predicate places. [2024-10-13 09:51:17,733 INFO L471 AbstractCegarLoop]: Abstraction has has 324 places, 360 transitions, 1282 flow [2024-10-13 09:51:17,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 215.5) internal successors, (1293), 6 states have internal predecessors, (1293), 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) [2024-10-13 09:51:17,734 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:17,734 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:17,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 09:51:17,734 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:17,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:17,734 INFO L85 PathProgramCache]: Analyzing trace with hash 233424060, now seen corresponding path program 1 times [2024-10-13 09:51:17,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:17,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390194712] [2024-10-13 09:51:17,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:17,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:17,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:18,102 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:18,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:18,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390194712] [2024-10-13 09:51:18,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390194712] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:18,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:18,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:18,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71309272] [2024-10-13 09:51:18,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:18,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:18,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:18,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:18,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:18,339 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 273 [2024-10-13 09:51:18,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 360 transitions, 1282 flow. Second operand has 6 states, 6 states have (on average 191.16666666666666) internal successors, (1147), 6 states have internal predecessors, (1147), 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) [2024-10-13 09:51:18,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:18,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 273 [2024-10-13 09:51:18,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:18,821 INFO L124 PetriNetUnfolderBase]: 717/2926 cut-off events. [2024-10-13 09:51:18,822 INFO L125 PetriNetUnfolderBase]: For 950/1011 co-relation queries the response was YES. [2024-10-13 09:51:18,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5698 conditions, 2926 events. 717/2926 cut-off events. For 950/1011 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 20053 event pairs, 399 based on Foata normal form. 0/2705 useless extension candidates. Maximal degree in co-relation 5505. Up to 1485 conditions per place. [2024-10-13 09:51:18,834 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 146 selfloop transitions, 5 changer transitions 0/359 dead transitions. [2024-10-13 09:51:18,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 359 transitions, 1582 flow [2024-10-13 09:51:18,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:18,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:18,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1195 transitions. [2024-10-13 09:51:18,837 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7295482295482295 [2024-10-13 09:51:18,837 INFO L175 Difference]: Start difference. First operand has 324 places, 360 transitions, 1282 flow. Second operand 6 states and 1195 transitions. [2024-10-13 09:51:18,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 359 transitions, 1582 flow [2024-10-13 09:51:18,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 359 transitions, 1572 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:18,844 INFO L231 Difference]: Finished difference. Result has 323 places, 359 transitions, 1280 flow [2024-10-13 09:51:18,845 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1270, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1280, PETRI_PLACES=323, PETRI_TRANSITIONS=359} [2024-10-13 09:51:18,846 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 51 predicate places. [2024-10-13 09:51:18,846 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 359 transitions, 1280 flow [2024-10-13 09:51:18,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 191.16666666666666) internal successors, (1147), 6 states have internal predecessors, (1147), 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) [2024-10-13 09:51:18,847 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:18,847 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:18,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 09:51:18,847 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:18,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:18,848 INFO L85 PathProgramCache]: Analyzing trace with hash -108867941, now seen corresponding path program 1 times [2024-10-13 09:51:18,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:18,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394766996] [2024-10-13 09:51:18,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:18,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:19,385 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:19,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:19,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394766996] [2024-10-13 09:51:19,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394766996] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:19,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:19,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:19,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661318499] [2024-10-13 09:51:19,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:19,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:19,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:19,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:19,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:19,785 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 273 [2024-10-13 09:51:19,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 359 transitions, 1280 flow. Second operand has 6 states, 6 states have (on average 192.66666666666666) internal successors, (1156), 6 states have internal predecessors, (1156), 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) [2024-10-13 09:51:19,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:19,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 273 [2024-10-13 09:51:19,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:20,139 INFO L124 PetriNetUnfolderBase]: 717/2925 cut-off events. [2024-10-13 09:51:20,139 INFO L125 PetriNetUnfolderBase]: For 952/1013 co-relation queries the response was YES. [2024-10-13 09:51:20,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5696 conditions, 2925 events. 717/2925 cut-off events. For 952/1013 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 19973 event pairs, 399 based on Foata normal form. 0/2705 useless extension candidates. Maximal degree in co-relation 5503. Up to 1484 conditions per place. [2024-10-13 09:51:20,154 INFO L140 encePairwiseOnDemand]: 267/273 looper letters, 145 selfloop transitions, 5 changer transitions 0/358 dead transitions. [2024-10-13 09:51:20,154 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 358 transitions, 1578 flow [2024-10-13 09:51:20,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:20,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:20,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1200 transitions. [2024-10-13 09:51:20,156 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7326007326007326 [2024-10-13 09:51:20,156 INFO L175 Difference]: Start difference. First operand has 323 places, 359 transitions, 1280 flow. Second operand 6 states and 1200 transitions. [2024-10-13 09:51:20,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 358 transitions, 1578 flow [2024-10-13 09:51:20,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 358 transitions, 1568 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:20,164 INFO L231 Difference]: Finished difference. Result has 322 places, 358 transitions, 1278 flow [2024-10-13 09:51:20,165 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1268, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1278, PETRI_PLACES=322, PETRI_TRANSITIONS=358} [2024-10-13 09:51:20,165 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 50 predicate places. [2024-10-13 09:51:20,166 INFO L471 AbstractCegarLoop]: Abstraction has has 322 places, 358 transitions, 1278 flow [2024-10-13 09:51:20,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.66666666666666) internal successors, (1156), 6 states have internal predecessors, (1156), 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) [2024-10-13 09:51:20,167 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:20,167 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:20,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 09:51:20,168 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:20,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:20,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1812992791, now seen corresponding path program 1 times [2024-10-13 09:51:20,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:20,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249857522] [2024-10-13 09:51:20,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:20,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:20,754 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:20,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:20,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249857522] [2024-10-13 09:51:20,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249857522] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:20,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:20,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:20,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961901734] [2024-10-13 09:51:20,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:20,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:20,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:20,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:20,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:21,122 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 273 [2024-10-13 09:51:21,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 358 transitions, 1278 flow. Second operand has 6 states, 6 states have (on average 217.16666666666666) internal successors, (1303), 6 states have internal predecessors, (1303), 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) [2024-10-13 09:51:21,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:21,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 273 [2024-10-13 09:51:21,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:21,595 INFO L124 PetriNetUnfolderBase]: 530/2482 cut-off events. [2024-10-13 09:51:21,596 INFO L125 PetriNetUnfolderBase]: For 952/1054 co-relation queries the response was YES. [2024-10-13 09:51:21,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4684 conditions, 2482 events. 530/2482 cut-off events. For 952/1054 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 16120 event pairs, 93 based on Foata normal form. 16/2333 useless extension candidates. Maximal degree in co-relation 4490. Up to 813 conditions per place. [2024-10-13 09:51:21,609 INFO L140 encePairwiseOnDemand]: 250/273 looper letters, 131 selfloop transitions, 130 changer transitions 0/495 dead transitions. [2024-10-13 09:51:21,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 495 transitions, 2450 flow [2024-10-13 09:51:21,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:21,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:21,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1403 transitions. [2024-10-13 09:51:21,612 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8565323565323565 [2024-10-13 09:51:21,612 INFO L175 Difference]: Start difference. First operand has 322 places, 358 transitions, 1278 flow. Second operand 6 states and 1403 transitions. [2024-10-13 09:51:21,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 495 transitions, 2450 flow [2024-10-13 09:51:21,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 495 transitions, 2440 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:21,623 INFO L231 Difference]: Finished difference. Result has 327 places, 487 transitions, 2496 flow [2024-10-13 09:51:21,624 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=1268, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2496, PETRI_PLACES=327, PETRI_TRANSITIONS=487} [2024-10-13 09:51:21,625 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 55 predicate places. [2024-10-13 09:51:21,626 INFO L471 AbstractCegarLoop]: Abstraction has has 327 places, 487 transitions, 2496 flow [2024-10-13 09:51:21,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 217.16666666666666) internal successors, (1303), 6 states have internal predecessors, (1303), 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) [2024-10-13 09:51:21,627 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:21,627 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:21,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 09:51:21,627 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:21,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:21,627 INFO L85 PathProgramCache]: Analyzing trace with hash -151152579, now seen corresponding path program 1 times [2024-10-13 09:51:21,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:21,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613448394] [2024-10-13 09:51:21,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:21,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:22,076 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:22,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:22,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613448394] [2024-10-13 09:51:22,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613448394] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:22,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:22,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:22,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324727975] [2024-10-13 09:51:22,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:22,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:22,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:22,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:22,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:22,638 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 273 [2024-10-13 09:51:22,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 487 transitions, 2496 flow. Second operand has 6 states, 6 states have (on average 217.33333333333334) internal successors, (1304), 6 states have internal predecessors, (1304), 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) [2024-10-13 09:51:22,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:22,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 273 [2024-10-13 09:51:22,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:23,220 INFO L124 PetriNetUnfolderBase]: 806/3224 cut-off events. [2024-10-13 09:51:23,220 INFO L125 PetriNetUnfolderBase]: For 3385/3601 co-relation queries the response was YES. [2024-10-13 09:51:23,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7519 conditions, 3224 events. 806/3224 cut-off events. For 3385/3601 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 22190 event pairs, 65 based on Foata normal form. 52/3111 useless extension candidates. Maximal degree in co-relation 7321. Up to 1071 conditions per place. [2024-10-13 09:51:23,243 INFO L140 encePairwiseOnDemand]: 250/273 looper letters, 251 selfloop transitions, 131 changer transitions 5/625 dead transitions. [2024-10-13 09:51:23,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 625 transitions, 4170 flow [2024-10-13 09:51:23,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:23,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:23,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1404 transitions. [2024-10-13 09:51:23,245 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2024-10-13 09:51:23,245 INFO L175 Difference]: Start difference. First operand has 327 places, 487 transitions, 2496 flow. Second operand 6 states and 1404 transitions. [2024-10-13 09:51:23,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 625 transitions, 4170 flow [2024-10-13 09:51:23,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 625 transitions, 4170 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:51:23,259 INFO L231 Difference]: Finished difference. Result has 337 places, 615 transitions, 3976 flow [2024-10-13 09:51:23,260 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=2496, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=487, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=449, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3976, PETRI_PLACES=337, PETRI_TRANSITIONS=615} [2024-10-13 09:51:23,260 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 65 predicate places. [2024-10-13 09:51:23,260 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 615 transitions, 3976 flow [2024-10-13 09:51:23,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 217.33333333333334) internal successors, (1304), 6 states have internal predecessors, (1304), 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) [2024-10-13 09:51:23,261 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:23,261 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:23,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 09:51:23,261 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:23,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:23,262 INFO L85 PathProgramCache]: Analyzing trace with hash 976951538, now seen corresponding path program 1 times [2024-10-13 09:51:23,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:23,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569333255] [2024-10-13 09:51:23,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:23,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:23,743 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:23,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:23,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569333255] [2024-10-13 09:51:23,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569333255] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:23,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:23,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:23,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766481198] [2024-10-13 09:51:23,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:23,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:23,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:23,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:23,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:24,037 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-13 09:51:24,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 615 transitions, 3976 flow. Second operand has 6 states, 6 states have (on average 197.66666666666666) internal successors, (1186), 6 states have internal predecessors, (1186), 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) [2024-10-13 09:51:24,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:24,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-13 09:51:24,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:24,806 INFO L124 PetriNetUnfolderBase]: 1308/4592 cut-off events. [2024-10-13 09:51:24,806 INFO L125 PetriNetUnfolderBase]: For 4865/4922 co-relation queries the response was YES. [2024-10-13 09:51:24,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12157 conditions, 4592 events. 1308/4592 cut-off events. For 4865/4922 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 33815 event pairs, 369 based on Foata normal form. 11/4358 useless extension candidates. Maximal degree in co-relation 11955. Up to 2225 conditions per place. [2024-10-13 09:51:24,834 INFO L140 encePairwiseOnDemand]: 254/273 looper letters, 316 selfloop transitions, 84 changer transitions 0/694 dead transitions. [2024-10-13 09:51:24,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 694 transitions, 5174 flow [2024-10-13 09:51:24,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:24,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:24,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1282 transitions. [2024-10-13 09:51:24,836 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7826617826617827 [2024-10-13 09:51:24,836 INFO L175 Difference]: Start difference. First operand has 337 places, 615 transitions, 3976 flow. Second operand 6 states and 1282 transitions. [2024-10-13 09:51:24,836 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 694 transitions, 5174 flow [2024-10-13 09:51:24,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 694 transitions, 4920 flow, removed 127 selfloop flow, removed 0 redundant places. [2024-10-13 09:51:24,993 INFO L231 Difference]: Finished difference. Result has 346 places, 686 transitions, 4512 flow [2024-10-13 09:51:24,993 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=3728, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=615, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=567, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4512, PETRI_PLACES=346, PETRI_TRANSITIONS=686} [2024-10-13 09:51:24,994 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 74 predicate places. [2024-10-13 09:51:24,994 INFO L471 AbstractCegarLoop]: Abstraction has has 346 places, 686 transitions, 4512 flow [2024-10-13 09:51:24,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 197.66666666666666) internal successors, (1186), 6 states have internal predecessors, (1186), 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) [2024-10-13 09:51:24,995 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:24,995 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:24,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 09:51:24,996 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:24,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:24,996 INFO L85 PathProgramCache]: Analyzing trace with hash 691822610, now seen corresponding path program 1 times [2024-10-13 09:51:24,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:24,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425709642] [2024-10-13 09:51:24,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:24,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:26,082 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:26,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:26,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425709642] [2024-10-13 09:51:26,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425709642] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:26,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:26,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 09:51:26,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422715480] [2024-10-13 09:51:26,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:26,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 09:51:26,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:26,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 09:51:26,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:51:27,291 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-13 09:51:27,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 686 transitions, 4512 flow. Second operand has 13 states, 13 states have (on average 194.6153846153846) internal successors, (2530), 13 states have internal predecessors, (2530), 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) [2024-10-13 09:51:27,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:27,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-13 09:51:27,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:28,182 INFO L124 PetriNetUnfolderBase]: 1021/3854 cut-off events. [2024-10-13 09:51:28,183 INFO L125 PetriNetUnfolderBase]: For 6228/6457 co-relation queries the response was YES. [2024-10-13 09:51:28,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11416 conditions, 3854 events. 1021/3854 cut-off events. For 6228/6457 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 27647 event pairs, 69 based on Foata normal form. 32/3739 useless extension candidates. Maximal degree in co-relation 11206. Up to 892 conditions per place. [2024-10-13 09:51:28,209 INFO L140 encePairwiseOnDemand]: 246/273 looper letters, 405 selfloop transitions, 147 changer transitions 1/811 dead transitions. [2024-10-13 09:51:28,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 811 transitions, 6552 flow [2024-10-13 09:51:28,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-13 09:51:28,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-10-13 09:51:28,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3590 transitions. [2024-10-13 09:51:28,215 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7305657305657306 [2024-10-13 09:51:28,215 INFO L175 Difference]: Start difference. First operand has 346 places, 686 transitions, 4512 flow. Second operand 18 states and 3590 transitions. [2024-10-13 09:51:28,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 811 transitions, 6552 flow [2024-10-13 09:51:28,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 811 transitions, 6480 flow, removed 36 selfloop flow, removed 0 redundant places. [2024-10-13 09:51:28,246 INFO L231 Difference]: Finished difference. Result has 374 places, 743 transitions, 5470 flow [2024-10-13 09:51:28,247 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=4458, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=686, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=562, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5470, PETRI_PLACES=374, PETRI_TRANSITIONS=743} [2024-10-13 09:51:28,247 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 102 predicate places. [2024-10-13 09:51:28,247 INFO L471 AbstractCegarLoop]: Abstraction has has 374 places, 743 transitions, 5470 flow [2024-10-13 09:51:28,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 194.6153846153846) internal successors, (2530), 13 states have internal predecessors, (2530), 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) [2024-10-13 09:51:28,257 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:28,258 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:28,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-13 09:51:28,258 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:28,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:28,258 INFO L85 PathProgramCache]: Analyzing trace with hash -64026824, now seen corresponding path program 2 times [2024-10-13 09:51:28,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:28,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098718345] [2024-10-13 09:51:28,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:28,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:28,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:29,218 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:29,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:29,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098718345] [2024-10-13 09:51:29,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098718345] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:29,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:29,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 09:51:29,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357277320] [2024-10-13 09:51:29,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:29,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 09:51:29,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:29,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 09:51:29,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:51:30,530 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-13 09:51:30,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 743 transitions, 5470 flow. Second operand has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-13 09:51:30,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:30,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-13 09:51:30,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:32,278 INFO L124 PetriNetUnfolderBase]: 1465/5597 cut-off events. [2024-10-13 09:51:32,279 INFO L125 PetriNetUnfolderBase]: For 13237/13579 co-relation queries the response was YES. [2024-10-13 09:51:32,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17599 conditions, 5597 events. 1465/5597 cut-off events. For 13237/13579 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 45671 event pairs, 94 based on Foata normal form. 167/5574 useless extension candidates. Maximal degree in co-relation 17375. Up to 1307 conditions per place. [2024-10-13 09:51:32,323 INFO L140 encePairwiseOnDemand]: 235/273 looper letters, 423 selfloop transitions, 265 changer transitions 4/950 dead transitions. [2024-10-13 09:51:32,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 950 transitions, 8682 flow [2024-10-13 09:51:32,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 09:51:32,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-13 09:51:32,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2479 transitions. [2024-10-13 09:51:32,325 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7567155067155067 [2024-10-13 09:51:32,325 INFO L175 Difference]: Start difference. First operand has 374 places, 743 transitions, 5470 flow. Second operand 12 states and 2479 transitions. [2024-10-13 09:51:32,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 950 transitions, 8682 flow [2024-10-13 09:51:32,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 950 transitions, 8632 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:32,375 INFO L231 Difference]: Finished difference. Result has 385 places, 844 transitions, 7669 flow [2024-10-13 09:51:32,375 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=5442, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=743, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=164, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=481, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=7669, PETRI_PLACES=385, PETRI_TRANSITIONS=844} [2024-10-13 09:51:32,376 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 113 predicate places. [2024-10-13 09:51:32,376 INFO L471 AbstractCegarLoop]: Abstraction has has 385 places, 844 transitions, 7669 flow [2024-10-13 09:51:32,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-13 09:51:32,380 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:32,381 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:32,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-13 09:51:32,381 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:32,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:32,381 INFO L85 PathProgramCache]: Analyzing trace with hash 720592500, now seen corresponding path program 3 times [2024-10-13 09:51:32,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:32,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967878606] [2024-10-13 09:51:32,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:32,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:33,227 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:33,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:33,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967878606] [2024-10-13 09:51:33,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967878606] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:33,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:33,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 09:51:33,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960018025] [2024-10-13 09:51:33,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:33,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 09:51:33,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:33,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 09:51:33,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:51:34,830 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-13 09:51:34,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 844 transitions, 7669 flow. Second operand has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-13 09:51:34,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:34,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-13 09:51:34,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:36,849 INFO L124 PetriNetUnfolderBase]: 2060/7662 cut-off events. [2024-10-13 09:51:36,849 INFO L125 PetriNetUnfolderBase]: For 26239/26769 co-relation queries the response was YES. [2024-10-13 09:51:36,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25759 conditions, 7662 events. 2060/7662 cut-off events. For 26239/26769 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 68177 event pairs, 142 based on Foata normal form. 247/7636 useless extension candidates. Maximal degree in co-relation 25529. Up to 1697 conditions per place. [2024-10-13 09:51:36,939 INFO L140 encePairwiseOnDemand]: 237/273 looper letters, 552 selfloop transitions, 326 changer transitions 2/1138 dead transitions. [2024-10-13 09:51:36,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 1138 transitions, 12647 flow [2024-10-13 09:51:36,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-13 09:51:36,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-10-13 09:51:36,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 3432 transitions. [2024-10-13 09:51:36,945 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7394957983193278 [2024-10-13 09:51:36,945 INFO L175 Difference]: Start difference. First operand has 385 places, 844 transitions, 7669 flow. Second operand 17 states and 3432 transitions. [2024-10-13 09:51:36,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 1138 transitions, 12647 flow [2024-10-13 09:51:37,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 1138 transitions, 12533 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-13 09:51:37,045 INFO L231 Difference]: Finished difference. Result has 407 places, 993 transitions, 10789 flow [2024-10-13 09:51:37,046 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=7581, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=844, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=192, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=10789, PETRI_PLACES=407, PETRI_TRANSITIONS=993} [2024-10-13 09:51:37,046 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 135 predicate places. [2024-10-13 09:51:37,046 INFO L471 AbstractCegarLoop]: Abstraction has has 407 places, 993 transitions, 10789 flow [2024-10-13 09:51:37,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-13 09:51:37,048 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:37,048 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:37,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-13 09:51:37,048 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:37,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:37,048 INFO L85 PathProgramCache]: Analyzing trace with hash 164644886, now seen corresponding path program 4 times [2024-10-13 09:51:37,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:37,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082055617] [2024-10-13 09:51:37,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:37,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:37,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:37,947 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:37,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:37,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082055617] [2024-10-13 09:51:37,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082055617] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:37,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:37,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-13 09:51:37,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037713006] [2024-10-13 09:51:37,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:37,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-13 09:51:37,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:37,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-13 09:51:37,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-13 09:51:39,238 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 273 [2024-10-13 09:51:39,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 993 transitions, 10789 flow. Second operand has 15 states, 15 states have (on average 192.13333333333333) internal successors, (2882), 15 states have internal predecessors, (2882), 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) [2024-10-13 09:51:39,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:39,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 273 [2024-10-13 09:51:39,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:41,761 INFO L124 PetriNetUnfolderBase]: 3051/11570 cut-off events. [2024-10-13 09:51:41,761 INFO L125 PetriNetUnfolderBase]: For 47845/48511 co-relation queries the response was YES. [2024-10-13 09:51:41,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40082 conditions, 11570 events. 3051/11570 cut-off events. For 47845/48511 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 117387 event pairs, 184 based on Foata normal form. 167/11312 useless extension candidates. Maximal degree in co-relation 39839. Up to 2574 conditions per place. [2024-10-13 09:51:41,919 INFO L140 encePairwiseOnDemand]: 238/273 looper letters, 570 selfloop transitions, 420 changer transitions 1/1247 dead transitions. [2024-10-13 09:51:41,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 1247 transitions, 16325 flow [2024-10-13 09:51:41,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 09:51:41,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-13 09:51:41,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2587 transitions. [2024-10-13 09:51:41,922 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7289377289377289 [2024-10-13 09:51:41,922 INFO L175 Difference]: Start difference. First operand has 407 places, 993 transitions, 10789 flow. Second operand 13 states and 2587 transitions. [2024-10-13 09:51:41,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 1247 transitions, 16325 flow [2024-10-13 09:51:42,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 1247 transitions, 16154 flow, removed 82 selfloop flow, removed 3 redundant places. [2024-10-13 09:51:42,083 INFO L231 Difference]: Finished difference. Result has 424 places, 1153 transitions, 15301 flow [2024-10-13 09:51:42,084 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=10626, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=993, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=260, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=15301, PETRI_PLACES=424, PETRI_TRANSITIONS=1153} [2024-10-13 09:51:42,085 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 152 predicate places. [2024-10-13 09:51:42,085 INFO L471 AbstractCegarLoop]: Abstraction has has 424 places, 1153 transitions, 15301 flow [2024-10-13 09:51:42,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 192.13333333333333) internal successors, (2882), 15 states have internal predecessors, (2882), 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) [2024-10-13 09:51:42,086 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:42,086 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:42,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-13 09:51:42,086 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:42,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:42,086 INFO L85 PathProgramCache]: Analyzing trace with hash 787107828, now seen corresponding path program 5 times [2024-10-13 09:51:42,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:42,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137659460] [2024-10-13 09:51:42,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:42,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:42,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:43,040 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:43,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:43,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137659460] [2024-10-13 09:51:43,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137659460] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:43,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:43,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 09:51:43,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199951975] [2024-10-13 09:51:43,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:43,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 09:51:43,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:43,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 09:51:43,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:51:44,554 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-13 09:51:44,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 1153 transitions, 15301 flow. Second operand has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-13 09:51:44,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:44,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-13 09:51:44,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:48,604 INFO L124 PetriNetUnfolderBase]: 3907/14562 cut-off events. [2024-10-13 09:51:48,604 INFO L125 PetriNetUnfolderBase]: For 81892/83152 co-relation queries the response was YES. [2024-10-13 09:51:48,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52573 conditions, 14562 events. 3907/14562 cut-off events. For 81892/83152 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 155196 event pairs, 247 based on Foata normal form. 804/14827 useless extension candidates. Maximal degree in co-relation 52321. Up to 3188 conditions per place. [2024-10-13 09:51:48,778 INFO L140 encePairwiseOnDemand]: 235/273 looper letters, 615 selfloop transitions, 531 changer transitions 4/1408 dead transitions. [2024-10-13 09:51:48,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 1408 transitions, 21287 flow [2024-10-13 09:51:48,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 09:51:48,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-13 09:51:48,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3063 transitions. [2024-10-13 09:51:48,781 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.747985347985348 [2024-10-13 09:51:48,781 INFO L175 Difference]: Start difference. First operand has 424 places, 1153 transitions, 15301 flow. Second operand 15 states and 3063 transitions. [2024-10-13 09:51:48,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 1408 transitions, 21287 flow [2024-10-13 09:51:48,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 1408 transitions, 21226 flow, removed 27 selfloop flow, removed 3 redundant places. [2024-10-13 09:51:48,971 INFO L231 Difference]: Finished difference. Result has 444 places, 1294 transitions, 20298 flow [2024-10-13 09:51:48,972 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=15246, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=393, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=635, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=20298, PETRI_PLACES=444, PETRI_TRANSITIONS=1294} [2024-10-13 09:51:48,972 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 172 predicate places. [2024-10-13 09:51:48,972 INFO L471 AbstractCegarLoop]: Abstraction has has 444 places, 1294 transitions, 20298 flow [2024-10-13 09:51:48,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-13 09:51:48,973 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:48,973 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:48,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-13 09:51:48,976 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:48,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:48,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1626531754, now seen corresponding path program 6 times [2024-10-13 09:51:48,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:48,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343414689] [2024-10-13 09:51:48,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:48,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:49,823 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:49,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:49,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343414689] [2024-10-13 09:51:49,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343414689] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:49,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:49,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 09:51:49,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638616554] [2024-10-13 09:51:49,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:49,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 09:51:49,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:49,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 09:51:49,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:51:51,374 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-13 09:51:51,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 1294 transitions, 20298 flow. Second operand has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-13 09:51:51,375 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:51,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-13 09:51:51,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:56,081 INFO L124 PetriNetUnfolderBase]: 4361/16505 cut-off events. [2024-10-13 09:51:56,081 INFO L125 PetriNetUnfolderBase]: For 119798/120846 co-relation queries the response was YES. [2024-10-13 09:51:56,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62565 conditions, 16505 events. 4361/16505 cut-off events. For 119798/120846 co-relation queries the response was YES. Maximal size of possible extension queue 442. Compared 182193 event pairs, 262 based on Foata normal form. 433/16320 useless extension candidates. Maximal degree in co-relation 62303. Up to 3607 conditions per place. [2024-10-13 09:51:56,280 INFO L140 encePairwiseOnDemand]: 237/273 looper letters, 600 selfloop transitions, 694 changer transitions 2/1554 dead transitions. [2024-10-13 09:51:56,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 1554 transitions, 27018 flow [2024-10-13 09:51:56,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-13 09:51:56,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-10-13 09:51:56,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3235 transitions. [2024-10-13 09:51:56,285 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7406135531135531 [2024-10-13 09:51:56,285 INFO L175 Difference]: Start difference. First operand has 444 places, 1294 transitions, 20298 flow. Second operand 16 states and 3235 transitions. [2024-10-13 09:51:56,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 1554 transitions, 27018 flow [2024-10-13 09:51:56,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 1554 transitions, 26877 flow, removed 30 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:56,631 INFO L231 Difference]: Finished difference. Result has 463 places, 1424 transitions, 25355 flow [2024-10-13 09:51:56,632 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=20164, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=570, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=25355, PETRI_PLACES=463, PETRI_TRANSITIONS=1424} [2024-10-13 09:51:56,633 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 191 predicate places. [2024-10-13 09:51:56,633 INFO L471 AbstractCegarLoop]: Abstraction has has 463 places, 1424 transitions, 25355 flow [2024-10-13 09:51:56,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-13 09:51:56,634 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:56,634 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:56,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-13 09:51:56,634 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:56,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:56,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1419745818, now seen corresponding path program 7 times [2024-10-13 09:51:56,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:56,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36458359] [2024-10-13 09:51:56,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:56,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:56,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:57,781 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:51:57,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:57,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36458359] [2024-10-13 09:51:57,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36458359] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:57,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:57,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 09:51:57,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602416218] [2024-10-13 09:51:57,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:57,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 09:51:57,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:57,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 09:51:57,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:51:59,726 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-13 09:51:59,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 1424 transitions, 25355 flow. Second operand has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-13 09:51:59,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:59,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-13 09:51:59,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:52:05,329 INFO L124 PetriNetUnfolderBase]: 5132/19376 cut-off events. [2024-10-13 09:52:05,330 INFO L125 PetriNetUnfolderBase]: For 165734/167235 co-relation queries the response was YES. [2024-10-13 09:52:05,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76595 conditions, 19376 events. 5132/19376 cut-off events. For 165734/167235 co-relation queries the response was YES. Maximal size of possible extension queue 535. Compared 221090 event pairs, 312 based on Foata normal form. 857/19510 useless extension candidates. Maximal degree in co-relation 76323. Up to 4238 conditions per place. [2024-10-13 09:52:05,743 INFO L140 encePairwiseOnDemand]: 236/273 looper letters, 770 selfloop transitions, 677 changer transitions 3/1708 dead transitions. [2024-10-13 09:52:05,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 1708 transitions, 33365 flow [2024-10-13 09:52:05,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-13 09:52:05,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-10-13 09:52:05,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3250 transitions. [2024-10-13 09:52:05,747 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7440476190476191 [2024-10-13 09:52:05,747 INFO L175 Difference]: Start difference. First operand has 463 places, 1424 transitions, 25355 flow. Second operand 16 states and 3250 transitions. [2024-10-13 09:52:05,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 1708 transitions, 33365 flow [2024-10-13 09:52:06,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 1708 transitions, 33226 flow, removed 66 selfloop flow, removed 3 redundant places. [2024-10-13 09:52:06,246 INFO L231 Difference]: Finished difference. Result has 485 places, 1577 transitions, 31408 flow [2024-10-13 09:52:06,248 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=25224, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=529, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=761, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=31408, PETRI_PLACES=485, PETRI_TRANSITIONS=1577} [2024-10-13 09:52:06,248 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 213 predicate places. [2024-10-13 09:52:06,249 INFO L471 AbstractCegarLoop]: Abstraction has has 485 places, 1577 transitions, 31408 flow [2024-10-13 09:52:06,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-13 09:52:06,249 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:52:06,249 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:52:06,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-13 09:52:06,250 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:52:06,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:52:06,252 INFO L85 PathProgramCache]: Analyzing trace with hash 967687616, now seen corresponding path program 8 times [2024-10-13 09:52:06,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:52:06,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811478279] [2024-10-13 09:52:06,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:52:06,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:52:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:52:07,493 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:52:07,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:52:07,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811478279] [2024-10-13 09:52:07,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811478279] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:52:07,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:52:07,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 09:52:07,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867942489] [2024-10-13 09:52:07,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:52:07,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 09:52:07,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:52:07,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 09:52:07,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:52:08,916 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-13 09:52:08,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 485 places, 1577 transitions, 31408 flow. Second operand has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-13 09:52:08,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:52:08,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-13 09:52:08,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:52:15,583 INFO L124 PetriNetUnfolderBase]: 5592/21063 cut-off events. [2024-10-13 09:52:15,583 INFO L125 PetriNetUnfolderBase]: For 209254/211300 co-relation queries the response was YES. [2024-10-13 09:52:15,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86673 conditions, 21063 events. 5592/21063 cut-off events. For 209254/211300 co-relation queries the response was YES. Maximal size of possible extension queue 579. Compared 244330 event pairs, 319 based on Foata normal form. 1359/21643 useless extension candidates. Maximal degree in co-relation 86390. Up to 4716 conditions per place. [2024-10-13 09:52:16,053 INFO L140 encePairwiseOnDemand]: 236/273 looper letters, 658 selfloop transitions, 868 changer transitions 3/1787 dead transitions. [2024-10-13 09:52:16,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 497 places, 1787 transitions, 38460 flow [2024-10-13 09:52:16,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 09:52:16,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-13 09:52:16,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2656 transitions. [2024-10-13 09:52:16,056 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7483798253029023 [2024-10-13 09:52:16,056 INFO L175 Difference]: Start difference. First operand has 485 places, 1577 transitions, 31408 flow. Second operand 13 states and 2656 transitions. [2024-10-13 09:52:16,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 497 places, 1787 transitions, 38460 flow [2024-10-13 09:52:16,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 493 places, 1787 transitions, 38270 flow, removed 74 selfloop flow, removed 4 redundant places. [2024-10-13 09:52:16,930 INFO L231 Difference]: Finished difference. Result has 500 places, 1685 transitions, 37924 flow [2024-10-13 09:52:16,932 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=31222, PETRI_DIFFERENCE_MINUEND_PLACES=481, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1577, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=761, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=716, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=37924, PETRI_PLACES=500, PETRI_TRANSITIONS=1685} [2024-10-13 09:52:16,933 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 228 predicate places. [2024-10-13 09:52:16,933 INFO L471 AbstractCegarLoop]: Abstraction has has 500 places, 1685 transitions, 37924 flow [2024-10-13 09:52:16,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-13 09:52:16,934 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:52:16,934 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:52:16,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-13 09:52:16,934 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:52:16,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:52:16,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1034859882, now seen corresponding path program 9 times [2024-10-13 09:52:16,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:52:16,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261491437] [2024-10-13 09:52:16,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:52:16,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:52:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:52:18,101 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:52:18,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:52:18,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261491437] [2024-10-13 09:52:18,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261491437] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:52:18,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:52:18,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 09:52:18,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551967925] [2024-10-13 09:52:18,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:52:18,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 09:52:18,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:52:18,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 09:52:18,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:52:19,650 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-13 09:52:19,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 500 places, 1685 transitions, 37924 flow. Second operand has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-13 09:52:19,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:52:19,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-13 09:52:19,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:52:27,000 INFO L124 PetriNetUnfolderBase]: 5994/22620 cut-off events. [2024-10-13 09:52:27,000 INFO L125 PetriNetUnfolderBase]: For 273687/275545 co-relation queries the response was YES. [2024-10-13 09:52:27,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96710 conditions, 22620 events. 5994/22620 cut-off events. For 273687/275545 co-relation queries the response was YES. Maximal size of possible extension queue 642. Compared 266667 event pairs, 340 based on Foata normal form. 1132/22914 useless extension candidates. Maximal degree in co-relation 96419. Up to 4950 conditions per place. [2024-10-13 09:52:27,792 INFO L140 encePairwiseOnDemand]: 236/273 looper letters, 745 selfloop transitions, 897 changer transitions 3/1903 dead transitions. [2024-10-13 09:52:27,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 514 places, 1903 transitions, 45650 flow [2024-10-13 09:52:27,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 09:52:27,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-13 09:52:27,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3049 transitions. [2024-10-13 09:52:27,795 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7445665445665446 [2024-10-13 09:52:27,795 INFO L175 Difference]: Start difference. First operand has 500 places, 1685 transitions, 37924 flow. Second operand 15 states and 3049 transitions. [2024-10-13 09:52:27,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 514 places, 1903 transitions, 45650 flow [2024-10-13 09:52:28,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 510 places, 1903 transitions, 45502 flow, removed 53 selfloop flow, removed 4 redundant places. [2024-10-13 09:52:28,506 INFO L231 Difference]: Finished difference. Result has 515 places, 1795 transitions, 44126 flow [2024-10-13 09:52:28,507 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=273, PETRI_DIFFERENCE_MINUEND_FLOW=37798, PETRI_DIFFERENCE_MINUEND_PLACES=496, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1685, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=790, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=795, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=44126, PETRI_PLACES=515, PETRI_TRANSITIONS=1795} [2024-10-13 09:52:28,507 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 243 predicate places. [2024-10-13 09:52:28,507 INFO L471 AbstractCegarLoop]: Abstraction has has 515 places, 1795 transitions, 44126 flow [2024-10-13 09:52:28,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 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) [2024-10-13 09:52:28,508 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:52:28,508 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:52:28,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-13 09:52:28,508 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:52:28,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:52:28,509 INFO L85 PathProgramCache]: Analyzing trace with hash -2131137002, now seen corresponding path program 10 times [2024-10-13 09:52:28,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:52:28,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796899252] [2024-10-13 09:52:28,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:52:28,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:52:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:52:29,353 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-13 09:52:29,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:52:29,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796899252] [2024-10-13 09:52:29,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796899252] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:52:29,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:52:29,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-13 09:52:29,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935965160] [2024-10-13 09:52:29,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:52:29,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 09:52:29,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:52:29,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 09:52:29,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-10-13 09:52:30,521 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 273 [2024-10-13 09:52:30,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 1795 transitions, 44126 flow. Second operand has 12 states, 12 states have (on average 195.08333333333334) internal successors, (2341), 12 states have internal predecessors, (2341), 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) [2024-10-13 09:52:30,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:52:30,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 273 [2024-10-13 09:52:30,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand