./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_02-list_nr.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_02-list_nr.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 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:49:50,813 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:49:50,886 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:49:50,893 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:49:50,894 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:49:50,932 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:49:50,935 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:49:50,936 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:49:50,936 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:49:50,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:49:50,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:49:50,938 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:49:50,939 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:49:50,939 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:49:50,939 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:49:50,940 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:49:50,940 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:49:50,940 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:49:50,941 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:49:50,941 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:49:50,941 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:49:50,948 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:49:50,948 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:49:50,948 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:49:50,948 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:49:50,949 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:49:50,949 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:49:50,949 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:49:50,949 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:49:50,949 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:49:50,950 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:49:50,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:49:50,950 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:49:50,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:49:50,950 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:49:50,951 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:49:50,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:49:50,951 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:49:50,953 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:49:50,953 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:49:50,953 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:49:50,954 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c [2024-10-13 09:49:51,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:49:51,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:49:51,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:49:51,224 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:49:51,225 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:49:51,226 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2024-10-13 09:49:52,724 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:49:52,988 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:49:52,990 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2024-10-13 09:49:53,016 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d5cd8466/117dc7886a3f48578235c526da2a7d5e/FLAG8e8eaf603 [2024-10-13 09:49:53,047 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d5cd8466/117dc7886a3f48578235c526da2a7d5e [2024-10-13 09:49:53,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:49:53,051 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:49:53,054 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:49:53,054 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:49:53,058 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:49:53,058 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:49:53" (1/1) ... [2024-10-13 09:49:53,059 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f8bc66a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:53, skipping insertion in model container [2024-10-13 09:49:53,059 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:49:53" (1/1) ... [2024-10-13 09:49:53,104 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:49:53,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:49:53,648 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:49:53,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:49:53,809 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:49:53,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:53 WrapperNode [2024-10-13 09:49:53,811 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:49:53,812 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:49:53,812 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:49:53,813 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:49:53,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:53" (1/1) ... [2024-10-13 09:49:53,853 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:53" (1/1) ... [2024-10-13 09:49:53,895 INFO L138 Inliner]: procedures = 368, calls = 27, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 174 [2024-10-13 09:49:53,899 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:49:53,901 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:49:53,902 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:49:53,902 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:49:53,910 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:53" (1/1) ... [2024-10-13 09:49:53,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:53" (1/1) ... [2024-10-13 09:49:53,920 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:53" (1/1) ... [2024-10-13 09:49:53,920 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:53" (1/1) ... [2024-10-13 09:49:53,942 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:53" (1/1) ... [2024-10-13 09:49:53,944 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:53" (1/1) ... [2024-10-13 09:49:53,947 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:53" (1/1) ... [2024-10-13 09:49:53,949 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:53" (1/1) ... [2024-10-13 09:49:53,959 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:49:53,960 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:49:53,960 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:49:53,961 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:49:53,965 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:53" (1/1) ... [2024-10-13 09:49:53,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:49:53,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:49:53,999 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 09:49:54,001 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 09:49:54,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-13 09:49:54,036 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 09:49:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-13 09:49:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-13 09:49:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 09:49:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 09:49:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:49:54,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-13 09:49:54,038 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-13 09:49:54,038 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-13 09:49:54,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 09:49:54,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:49:54,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:49:54,040 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 09:49:54,188 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:49:54,190 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:49:54,607 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:49:54,608 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:49:54,632 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:49:54,633 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 09:49:54,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:49:54 BoogieIcfgContainer [2024-10-13 09:49:54,633 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:49:54,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:49:54,636 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:49:54,639 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:49:54,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:49:53" (1/3) ... [2024-10-13 09:49:54,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dad114c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:49:54, skipping insertion in model container [2024-10-13 09:49:54,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:49:53" (2/3) ... [2024-10-13 09:49:54,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dad114c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:49:54, skipping insertion in model container [2024-10-13 09:49:54,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:49:54" (3/3) ... [2024-10-13 09:49:54,642 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_02-list_nr.i [2024-10-13 09:49:54,659 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:49:54,660 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-10-13 09:49:54,660 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:49:54,751 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:49:54,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 206 places, 202 transitions, 408 flow [2024-10-13 09:49:54,898 INFO L124 PetriNetUnfolderBase]: 0/201 cut-off events. [2024-10-13 09:49:54,901 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:49:54,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 201 events. 0/201 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 85 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-10-13 09:49:54,906 INFO L82 GeneralOperation]: Start removeDead. Operand has 206 places, 202 transitions, 408 flow [2024-10-13 09:49:54,912 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 205 places, 201 transitions, 405 flow [2024-10-13 09:49:54,926 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:49:54,935 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;@10e1ecc9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:49:54,936 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-10-13 09:49:54,947 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:49:54,947 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2024-10-13 09:49:54,947 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:49:54,947 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:54,948 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 09:49:54,949 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-13 09:49:54,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:54,954 INFO L85 PathProgramCache]: Analyzing trace with hash -470290010, now seen corresponding path program 1 times [2024-10-13 09:49:54,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:54,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342035015] [2024-10-13 09:49:54,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:54,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:55,768 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 09:49:55,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:55,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342035015] [2024-10-13 09:49:55,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342035015] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:55,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:49:55,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:49:55,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597738995] [2024-10-13 09:49:55,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:55,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:49:55,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:55,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:49:55,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:49:56,336 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 202 [2024-10-13 09:49:56,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 201 transitions, 405 flow. Second operand has 6 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 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 09:49:56,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:56,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 202 [2024-10-13 09:49:56,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:56,563 INFO L124 PetriNetUnfolderBase]: 220/1025 cut-off events. [2024-10-13 09:49:56,563 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:49:56,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1527 conditions, 1025 events. 220/1025 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5369 event pairs, 220 based on Foata normal form. 0/920 useless extension candidates. Maximal degree in co-relation 1398. Up to 488 conditions per place. [2024-10-13 09:49:56,578 INFO L140 encePairwiseOnDemand]: 190/202 looper letters, 47 selfloop transitions, 10 changer transitions 0/199 dead transitions. [2024-10-13 09:49:56,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 199 transitions, 515 flow [2024-10-13 09:49:56,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:49:56,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:49:56,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 917 transitions. [2024-10-13 09:49:56,600 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7566006600660066 [2024-10-13 09:49:56,605 INFO L175 Difference]: Start difference. First operand has 205 places, 201 transitions, 405 flow. Second operand 6 states and 917 transitions. [2024-10-13 09:49:56,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 199 transitions, 515 flow [2024-10-13 09:49:56,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 199 transitions, 514 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:49:56,615 INFO L231 Difference]: Finished difference. Result has 207 places, 199 transitions, 420 flow [2024-10-13 09:49:56,618 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=420, PETRI_PLACES=207, PETRI_TRANSITIONS=199} [2024-10-13 09:49:56,624 INFO L277 CegarLoopForPetriNet]: 205 programPoint places, 2 predicate places. [2024-10-13 09:49:56,625 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 199 transitions, 420 flow [2024-10-13 09:49:56,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 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 09:49:56,625 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:56,626 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:49:56,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:49:56,626 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-13 09:49:56,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:56,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1010860236, now seen corresponding path program 1 times [2024-10-13 09:49:56,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:56,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088099067] [2024-10-13 09:49:56,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:56,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:57,024 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 09:49:57,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:57,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088099067] [2024-10-13 09:49:57,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088099067] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:57,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:49:57,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:49:57,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569101412] [2024-10-13 09:49:57,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:57,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:49:57,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:57,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:49:57,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:49:57,411 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 202 [2024-10-13 09:49:57,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 199 transitions, 420 flow. Second operand has 6 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 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 09:49:57,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:57,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 202 [2024-10-13 09:49:57,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:57,633 INFO L124 PetriNetUnfolderBase]: 220/1023 cut-off events. [2024-10-13 09:49:57,633 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:49:57,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1535 conditions, 1023 events. 220/1023 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5371 event pairs, 220 based on Foata normal form. 0/920 useless extension candidates. Maximal degree in co-relation 1439. Up to 488 conditions per place. [2024-10-13 09:49:57,639 INFO L140 encePairwiseOnDemand]: 190/202 looper letters, 47 selfloop transitions, 10 changer transitions 0/197 dead transitions. [2024-10-13 09:49:57,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 197 transitions, 530 flow [2024-10-13 09:49:57,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:49:57,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:49:57,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 917 transitions. [2024-10-13 09:49:57,641 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7566006600660066 [2024-10-13 09:49:57,642 INFO L175 Difference]: Start difference. First operand has 207 places, 199 transitions, 420 flow. Second operand 6 states and 917 transitions. [2024-10-13 09:49:57,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 197 transitions, 530 flow [2024-10-13 09:49:57,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 197 transitions, 510 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:49:57,646 INFO L231 Difference]: Finished difference. Result has 205 places, 197 transitions, 416 flow [2024-10-13 09:49:57,647 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=416, PETRI_PLACES=205, PETRI_TRANSITIONS=197} [2024-10-13 09:49:57,647 INFO L277 CegarLoopForPetriNet]: 205 programPoint places, 0 predicate places. [2024-10-13 09:49:57,648 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 197 transitions, 416 flow [2024-10-13 09:49:57,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 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 09:49:57,649 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:57,649 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:49:57,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 09:49:57,650 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-13 09:49:57,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:57,651 INFO L85 PathProgramCache]: Analyzing trace with hash 2075346678, now seen corresponding path program 1 times [2024-10-13 09:49:57,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:57,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923418227] [2024-10-13 09:49:57,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:57,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:57,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:57,693 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 09:49:57,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:57,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923418227] [2024-10-13 09:49:57,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923418227] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:57,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:49:57,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:49:57,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487124989] [2024-10-13 09:49:57,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:57,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:49:57,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:57,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:49:57,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:49:57,728 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 202 [2024-10-13 09:49:57,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 197 transitions, 416 flow. Second operand has 3 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 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 09:49:57,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:57,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 202 [2024-10-13 09:49:57,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:57,785 INFO L124 PetriNetUnfolderBase]: 16/332 cut-off events. [2024-10-13 09:49:57,787 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:49:57,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 332 events. 16/332 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 758 event pairs, 16 based on Foata normal form. 0/300 useless extension candidates. Maximal degree in co-relation 298. Up to 47 conditions per place. [2024-10-13 09:49:57,790 INFO L140 encePairwiseOnDemand]: 199/202 looper letters, 14 selfloop transitions, 2 changer transitions 0/196 dead transitions. [2024-10-13 09:49:57,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 196 transitions, 446 flow [2024-10-13 09:49:57,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:49:57,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:49:57,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 572 transitions. [2024-10-13 09:49:57,792 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9438943894389439 [2024-10-13 09:49:57,792 INFO L175 Difference]: Start difference. First operand has 205 places, 197 transitions, 416 flow. Second operand 3 states and 572 transitions. [2024-10-13 09:49:57,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 196 transitions, 446 flow [2024-10-13 09:49:57,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 196 transitions, 426 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:49:57,812 INFO L231 Difference]: Finished difference. Result has 201 places, 196 transitions, 398 flow [2024-10-13 09:49:57,813 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=398, PETRI_PLACES=201, PETRI_TRANSITIONS=196} [2024-10-13 09:49:57,814 INFO L277 CegarLoopForPetriNet]: 205 programPoint places, -4 predicate places. [2024-10-13 09:49:57,814 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 196 transitions, 398 flow [2024-10-13 09:49:57,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 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 09:49:57,815 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:57,816 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:49:57,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 09:49:57,816 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-13 09:49:57,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:57,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1388712241, now seen corresponding path program 1 times [2024-10-13 09:49:57,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:57,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251278246] [2024-10-13 09:49:57,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:57,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:57,862 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 09:49:57,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:57,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251278246] [2024-10-13 09:49:57,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251278246] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:57,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:49:57,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 09:49:57,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874910468] [2024-10-13 09:49:57,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:57,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:49:57,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:57,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:49:57,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:49:57,885 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 202 [2024-10-13 09:49:57,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 196 transitions, 398 flow. Second operand has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 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 09:49:57,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:57,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 202 [2024-10-13 09:49:57,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:57,948 INFO L124 PetriNetUnfolderBase]: 24/409 cut-off events. [2024-10-13 09:49:57,948 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:49:57,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 480 conditions, 409 events. 24/409 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1210 event pairs, 24 based on Foata normal form. 0/378 useless extension candidates. Maximal degree in co-relation 419. Up to 63 conditions per place. [2024-10-13 09:49:57,952 INFO L140 encePairwiseOnDemand]: 196/202 looper letters, 15 selfloop transitions, 1 changer transitions 0/191 dead transitions. [2024-10-13 09:49:57,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 191 transitions, 420 flow [2024-10-13 09:49:57,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:49:57,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:49:57,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 564 transitions. [2024-10-13 09:49:57,954 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9306930693069307 [2024-10-13 09:49:57,955 INFO L175 Difference]: Start difference. First operand has 201 places, 196 transitions, 398 flow. Second operand 3 states and 564 transitions. [2024-10-13 09:49:57,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 191 transitions, 420 flow [2024-10-13 09:49:57,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 191 transitions, 416 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:49:57,959 INFO L231 Difference]: Finished difference. Result has 196 places, 191 transitions, 386 flow [2024-10-13 09:49:57,959 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=386, PETRI_PLACES=196, PETRI_TRANSITIONS=191} [2024-10-13 09:49:57,961 INFO L277 CegarLoopForPetriNet]: 205 programPoint places, -9 predicate places. [2024-10-13 09:49:57,961 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 191 transitions, 386 flow [2024-10-13 09:49:57,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 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 09:49:57,962 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:57,962 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:49:57,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 09:49:57,964 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-13 09:49:57,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:57,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1639247793, now seen corresponding path program 1 times [2024-10-13 09:49:57,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:57,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274830348] [2024-10-13 09:49:57,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:57,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:58,472 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 09:49:58,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:58,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274830348] [2024-10-13 09:49:58,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274830348] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:58,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:49:58,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:49:58,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662915763] [2024-10-13 09:49:58,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:58,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:49:58,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:58,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:49:58,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:49:58,807 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 202 [2024-10-13 09:49:58,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 191 transitions, 386 flow. Second operand has 6 states, 6 states have (on average 142.16666666666666) internal successors, (853), 6 states have internal predecessors, (853), 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 09:49:58,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:58,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 202 [2024-10-13 09:49:58,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:49:58,946 INFO L124 PetriNetUnfolderBase]: 288/1162 cut-off events. [2024-10-13 09:49:58,946 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:49:58,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1807 conditions, 1162 events. 288/1162 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 6259 event pairs, 288 based on Foata normal form. 0/1103 useless extension candidates. Maximal degree in co-relation 1736. Up to 635 conditions per place. [2024-10-13 09:49:58,952 INFO L140 encePairwiseOnDemand]: 196/202 looper letters, 58 selfloop transitions, 5 changer transitions 0/190 dead transitions. [2024-10-13 09:49:58,953 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 190 transitions, 510 flow [2024-10-13 09:49:58,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:49:58,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:49:58,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 892 transitions. [2024-10-13 09:49:58,955 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.735973597359736 [2024-10-13 09:49:58,955 INFO L175 Difference]: Start difference. First operand has 196 places, 191 transitions, 386 flow. Second operand 6 states and 892 transitions. [2024-10-13 09:49:58,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 190 transitions, 510 flow [2024-10-13 09:49:58,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 190 transitions, 509 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:49:58,959 INFO L231 Difference]: Finished difference. Result has 199 places, 190 transitions, 393 flow [2024-10-13 09:49:58,960 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=383, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=393, PETRI_PLACES=199, PETRI_TRANSITIONS=190} [2024-10-13 09:49:58,960 INFO L277 CegarLoopForPetriNet]: 205 programPoint places, -6 predicate places. [2024-10-13 09:49:58,961 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 190 transitions, 393 flow [2024-10-13 09:49:58,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 142.16666666666666) internal successors, (853), 6 states have internal predecessors, (853), 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 09:49:58,961 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:49:58,962 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:49:58,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 09:49:58,962 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-13 09:49:58,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:49:58,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1462967909, now seen corresponding path program 1 times [2024-10-13 09:49:58,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:49:58,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240395908] [2024-10-13 09:49:58,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:49:58,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:49:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:49:59,534 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 09:49:59,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:49:59,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240395908] [2024-10-13 09:49:59,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240395908] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:49:59,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:49:59,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:49:59,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150826015] [2024-10-13 09:49:59,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:49:59,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:49:59,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:49:59,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:49:59,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:49:59,798 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 202 [2024-10-13 09:49:59,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 190 transitions, 393 flow. Second operand has 6 states, 6 states have (on average 150.0) internal successors, (900), 6 states have internal predecessors, (900), 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 09:49:59,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:49:59,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 202 [2024-10-13 09:49:59,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:50:00,145 INFO L124 PetriNetUnfolderBase]: 316/1488 cut-off events. [2024-10-13 09:50:00,145 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:50:00,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2224 conditions, 1488 events. 316/1488 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 9206 event pairs, 36 based on Foata normal form. 0/1398 useless extension candidates. Maximal degree in co-relation 2154. Up to 380 conditions per place. [2024-10-13 09:50:00,154 INFO L140 encePairwiseOnDemand]: 174/202 looper letters, 99 selfloop transitions, 70 changer transitions 0/302 dead transitions. [2024-10-13 09:50:00,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 302 transitions, 955 flow [2024-10-13 09:50:00,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:50:00,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:50:00,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1041 transitions. [2024-10-13 09:50:00,157 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8589108910891089 [2024-10-13 09:50:00,157 INFO L175 Difference]: Start difference. First operand has 199 places, 190 transitions, 393 flow. Second operand 6 states and 1041 transitions. [2024-10-13 09:50:00,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 302 transitions, 955 flow [2024-10-13 09:50:00,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 302 transitions, 945 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:50:00,166 INFO L231 Difference]: Finished difference. Result has 203 places, 260 transitions, 861 flow [2024-10-13 09:50:00,167 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=381, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=861, PETRI_PLACES=203, PETRI_TRANSITIONS=260} [2024-10-13 09:50:00,168 INFO L277 CegarLoopForPetriNet]: 205 programPoint places, -2 predicate places. [2024-10-13 09:50:00,169 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 260 transitions, 861 flow [2024-10-13 09:50:00,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.0) internal successors, (900), 6 states have internal predecessors, (900), 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 09:50:00,170 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:50:00,170 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:50:00,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 09:50:00,171 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-13 09:50:00,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:50:00,171 INFO L85 PathProgramCache]: Analyzing trace with hash -8155335, now seen corresponding path program 1 times [2024-10-13 09:50:00,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:50:00,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362135995] [2024-10-13 09:50:00,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:50:00,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:50:00,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:50:00,620 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 09:50:00,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:50:00,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362135995] [2024-10-13 09:50:00,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362135995] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:50:00,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:50:00,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:50:00,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422563232] [2024-10-13 09:50:00,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:50:00,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:50:00,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:50:00,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:50:00,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:50:00,866 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 202 [2024-10-13 09:50:00,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 260 transitions, 861 flow. Second operand has 6 states, 6 states have (on average 150.83333333333334) internal successors, (905), 6 states have internal predecessors, (905), 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 09:50:00,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:50:00,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 202 [2024-10-13 09:50:00,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:50:01,372 INFO L124 PetriNetUnfolderBase]: 588/2259 cut-off events. [2024-10-13 09:50:01,372 INFO L125 PetriNetUnfolderBase]: For 603/609 co-relation queries the response was YES. [2024-10-13 09:50:01,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4648 conditions, 2259 events. 588/2259 cut-off events. For 603/609 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 15125 event pairs, 222 based on Foata normal form. 0/2148 useless extension candidates. Maximal degree in co-relation 4576. Up to 1082 conditions per place. [2024-10-13 09:50:01,389 INFO L140 encePairwiseOnDemand]: 187/202 looper letters, 106 selfloop transitions, 48 changer transitions 0/311 dead transitions. [2024-10-13 09:50:01,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 311 transitions, 1341 flow [2024-10-13 09:50:01,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:50:01,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:50:01,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 978 transitions. [2024-10-13 09:50:01,392 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.806930693069307 [2024-10-13 09:50:01,392 INFO L175 Difference]: Start difference. First operand has 203 places, 260 transitions, 861 flow. Second operand 6 states and 978 transitions. [2024-10-13 09:50:01,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 311 transitions, 1341 flow [2024-10-13 09:50:01,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 311 transitions, 1341 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:50:01,402 INFO L231 Difference]: Finished difference. Result has 213 places, 303 transitions, 1249 flow [2024-10-13 09:50:01,403 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=861, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1249, PETRI_PLACES=213, PETRI_TRANSITIONS=303} [2024-10-13 09:50:01,403 INFO L277 CegarLoopForPetriNet]: 205 programPoint places, 8 predicate places. [2024-10-13 09:50:01,404 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 303 transitions, 1249 flow [2024-10-13 09:50:01,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 150.83333333333334) internal successors, (905), 6 states have internal predecessors, (905), 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 09:50:01,405 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:50:01,405 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:50:01,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 09:50:01,405 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-13 09:50:01,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:50:01,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1141257245, now seen corresponding path program 1 times [2024-10-13 09:50:01,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:50:01,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943204933] [2024-10-13 09:50:01,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:50:01,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:50:01,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:50:01,848 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 09:50:01,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:50:01,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943204933] [2024-10-13 09:50:01,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943204933] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:50:01,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:50:01,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:50:01,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400842570] [2024-10-13 09:50:01,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:50:01,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:50:01,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:50:01,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:50:01,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:50:02,166 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 202 [2024-10-13 09:50:02,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 303 transitions, 1249 flow. Second operand has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 states have internal predecessors, (936), 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 09:50:02,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:50:02,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 202 [2024-10-13 09:50:02,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:50:02,692 INFO L124 PetriNetUnfolderBase]: 734/2827 cut-off events. [2024-10-13 09:50:02,693 INFO L125 PetriNetUnfolderBase]: For 1684/1747 co-relation queries the response was YES. [2024-10-13 09:50:02,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6603 conditions, 2827 events. 734/2827 cut-off events. For 1684/1747 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 20497 event pairs, 86 based on Foata normal form. 0/2731 useless extension candidates. Maximal degree in co-relation 6524. Up to 1024 conditions per place. [2024-10-13 09:50:02,714 INFO L140 encePairwiseOnDemand]: 179/202 looper letters, 128 selfloop transitions, 136 changer transitions 4/443 dead transitions. [2024-10-13 09:50:02,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 443 transitions, 2541 flow [2024-10-13 09:50:02,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:50:02,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:50:02,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1036 transitions. [2024-10-13 09:50:02,717 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8547854785478548 [2024-10-13 09:50:02,717 INFO L175 Difference]: Start difference. First operand has 213 places, 303 transitions, 1249 flow. Second operand 6 states and 1036 transitions. [2024-10-13 09:50:02,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 443 transitions, 2541 flow [2024-10-13 09:50:02,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 443 transitions, 2523 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-13 09:50:02,737 INFO L231 Difference]: Finished difference. Result has 223 places, 434 transitions, 2597 flow [2024-10-13 09:50:02,738 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=1231, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2597, PETRI_PLACES=223, PETRI_TRANSITIONS=434} [2024-10-13 09:50:02,739 INFO L277 CegarLoopForPetriNet]: 205 programPoint places, 18 predicate places. [2024-10-13 09:50:02,739 INFO L471 AbstractCegarLoop]: Abstraction has has 223 places, 434 transitions, 2597 flow [2024-10-13 09:50:02,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 156.0) internal successors, (936), 6 states have internal predecessors, (936), 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 09:50:02,740 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:50:02,740 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:50:02,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 09:50:02,740 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-13 09:50:02,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:50:02,741 INFO L85 PathProgramCache]: Analyzing trace with hash 413221397, now seen corresponding path program 1 times [2024-10-13 09:50:02,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:50:02,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220678054] [2024-10-13 09:50:02,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:50:02,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:50:02,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:50:03,541 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 09:50:03,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:50:03,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220678054] [2024-10-13 09:50:03,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220678054] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:50:03,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:50:03,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 09:50:03,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051353713] [2024-10-13 09:50:03,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:50:03,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 09:50:03,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:50:03,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 09:50:03,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:50:04,784 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 202 [2024-10-13 09:50:04,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 434 transitions, 2597 flow. Second operand has 13 states, 13 states have (on average 136.07692307692307) internal successors, (1769), 13 states have internal predecessors, (1769), 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 09:50:04,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:50:04,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 202 [2024-10-13 09:50:04,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:50:06,078 INFO L124 PetriNetUnfolderBase]: 1151/4142 cut-off events. [2024-10-13 09:50:06,078 INFO L125 PetriNetUnfolderBase]: For 5407/5510 co-relation queries the response was YES. [2024-10-13 09:50:06,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11908 conditions, 4142 events. 1151/4142 cut-off events. For 5407/5510 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 33151 event pairs, 87 based on Foata normal form. 35/4078 useless extension candidates. Maximal degree in co-relation 11821. Up to 880 conditions per place. [2024-10-13 09:50:06,108 INFO L140 encePairwiseOnDemand]: 165/202 looper letters, 349 selfloop transitions, 159 changer transitions 4/658 dead transitions. [2024-10-13 09:50:06,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 658 transitions, 5037 flow [2024-10-13 09:50:06,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 09:50:06,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-13 09:50:06,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2119 transitions. [2024-10-13 09:50:06,114 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7492927864214993 [2024-10-13 09:50:06,114 INFO L175 Difference]: Start difference. First operand has 223 places, 434 transitions, 2597 flow. Second operand 14 states and 2119 transitions. [2024-10-13 09:50:06,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 658 transitions, 5037 flow [2024-10-13 09:50:06,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 658 transitions, 4965 flow, removed 36 selfloop flow, removed 0 redundant places. [2024-10-13 09:50:06,150 INFO L231 Difference]: Finished difference. Result has 246 places, 497 transitions, 3870 flow [2024-10-13 09:50:06,150 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=2561, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3870, PETRI_PLACES=246, PETRI_TRANSITIONS=497} [2024-10-13 09:50:06,151 INFO L277 CegarLoopForPetriNet]: 205 programPoint places, 41 predicate places. [2024-10-13 09:50:06,151 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 497 transitions, 3870 flow [2024-10-13 09:50:06,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 136.07692307692307) internal successors, (1769), 13 states have internal predecessors, (1769), 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 09:50:06,153 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:50:06,153 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:50:06,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 09:50:06,153 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-13 09:50:06,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:50:06,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1311324693, now seen corresponding path program 2 times [2024-10-13 09:50:06,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:50:06,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193821230] [2024-10-13 09:50:06,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:50:06,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:50:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:50:06,792 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 09:50:06,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:50:06,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193821230] [2024-10-13 09:50:06,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193821230] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:50:06,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:50:06,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 09:50:06,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450485042] [2024-10-13 09:50:06,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:50:06,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 09:50:06,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:50:06,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 09:50:06,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:50:07,932 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 202 [2024-10-13 09:50:07,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 497 transitions, 3870 flow. Second operand has 13 states, 13 states have (on average 136.07692307692307) internal successors, (1769), 13 states have internal predecessors, (1769), 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 09:50:07,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:50:07,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 202 [2024-10-13 09:50:07,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:50:09,385 INFO L124 PetriNetUnfolderBase]: 1262/4600 cut-off events. [2024-10-13 09:50:09,385 INFO L125 PetriNetUnfolderBase]: For 9508/9606 co-relation queries the response was YES. [2024-10-13 09:50:09,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14581 conditions, 4600 events. 1262/4600 cut-off events. For 9508/9606 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 37356 event pairs, 132 based on Foata normal form. 39/4520 useless extension candidates. Maximal degree in co-relation 14480. Up to 891 conditions per place. [2024-10-13 09:50:09,433 INFO L140 encePairwiseOnDemand]: 181/202 looper letters, 440 selfloop transitions, 103 changer transitions 0/689 dead transitions. [2024-10-13 09:50:09,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 689 transitions, 6414 flow [2024-10-13 09:50:09,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-13 09:50:09,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-13 09:50:09,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2711 transitions. [2024-10-13 09:50:09,440 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7063574778530485 [2024-10-13 09:50:09,440 INFO L175 Difference]: Start difference. First operand has 246 places, 497 transitions, 3870 flow. Second operand 19 states and 2711 transitions. [2024-10-13 09:50:09,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 689 transitions, 6414 flow [2024-10-13 09:50:09,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 689 transitions, 6409 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 09:50:09,496 INFO L231 Difference]: Finished difference. Result has 270 places, 552 transitions, 4685 flow [2024-10-13 09:50:09,497 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=3865, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=497, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4685, PETRI_PLACES=270, PETRI_TRANSITIONS=552} [2024-10-13 09:50:09,498 INFO L277 CegarLoopForPetriNet]: 205 programPoint places, 65 predicate places. [2024-10-13 09:50:09,498 INFO L471 AbstractCegarLoop]: Abstraction has has 270 places, 552 transitions, 4685 flow [2024-10-13 09:50:09,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 136.07692307692307) internal successors, (1769), 13 states have internal predecessors, (1769), 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 09:50:09,499 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:50:09,499 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:50:09,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 09:50:09,499 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-13 09:50:09,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:50:09,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1465490831, now seen corresponding path program 3 times [2024-10-13 09:50:09,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:50:09,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382760167] [2024-10-13 09:50:09,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:50:09,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:50:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:50:10,149 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 09:50:10,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:50:10,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382760167] [2024-10-13 09:50:10,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382760167] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:50:10,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:50:10,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 09:50:10,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119459959] [2024-10-13 09:50:10,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:50:10,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 09:50:10,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:50:10,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 09:50:10,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:50:11,078 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 202 [2024-10-13 09:50:11,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 552 transitions, 4685 flow. Second operand has 13 states, 13 states have (on average 136.07692307692307) internal successors, (1769), 13 states have internal predecessors, (1769), 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 09:50:11,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:50:11,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 202 [2024-10-13 09:50:11,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:50:12,642 INFO L124 PetriNetUnfolderBase]: 1719/6060 cut-off events. [2024-10-13 09:50:12,642 INFO L125 PetriNetUnfolderBase]: For 17015/17177 co-relation queries the response was YES. [2024-10-13 09:50:12,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20739 conditions, 6060 events. 1719/6060 cut-off events. For 17015/17177 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 53937 event pairs, 108 based on Foata normal form. 49/5954 useless extension candidates. Maximal degree in co-relation 20628. Up to 1224 conditions per place. [2024-10-13 09:50:12,709 INFO L140 encePairwiseOnDemand]: 173/202 looper letters, 414 selfloop transitions, 210 changer transitions 0/770 dead transitions. [2024-10-13 09:50:12,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 770 transitions, 8081 flow [2024-10-13 09:50:12,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-13 09:50:12,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-10-13 09:50:12,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2591 transitions. [2024-10-13 09:50:12,717 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7125962596259626 [2024-10-13 09:50:12,717 INFO L175 Difference]: Start difference. First operand has 270 places, 552 transitions, 4685 flow. Second operand 18 states and 2591 transitions. [2024-10-13 09:50:12,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 770 transitions, 8081 flow [2024-10-13 09:50:12,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 770 transitions, 8049 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-10-13 09:50:12,803 INFO L231 Difference]: Finished difference. Result has 290 places, 630 transitions, 6635 flow [2024-10-13 09:50:12,804 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=4659, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=552, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6635, PETRI_PLACES=290, PETRI_TRANSITIONS=630} [2024-10-13 09:50:12,806 INFO L277 CegarLoopForPetriNet]: 205 programPoint places, 85 predicate places. [2024-10-13 09:50:12,806 INFO L471 AbstractCegarLoop]: Abstraction has has 290 places, 630 transitions, 6635 flow [2024-10-13 09:50:12,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 136.07692307692307) internal successors, (1769), 13 states have internal predecessors, (1769), 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 09:50:12,807 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:50:12,807 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:50:12,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 09:50:12,808 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-13 09:50:12,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:50:12,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1587284471, now seen corresponding path program 4 times [2024-10-13 09:50:12,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:50:12,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896835385] [2024-10-13 09:50:12,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:50:12,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:50:12,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:50:13,707 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 09:50:13,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:50:13,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896835385] [2024-10-13 09:50:13,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896835385] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:50:13,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:50:13,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 09:50:13,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992817590] [2024-10-13 09:50:13,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:50:13,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 09:50:13,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:50:13,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 09:50:13,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:50:14,497 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 202 [2024-10-13 09:50:14,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 630 transitions, 6635 flow. Second operand has 13 states, 13 states have (on average 136.07692307692307) internal successors, (1769), 13 states have internal predecessors, (1769), 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 09:50:14,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:50:14,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 202 [2024-10-13 09:50:14,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:50:16,378 INFO L124 PetriNetUnfolderBase]: 2381/8468 cut-off events. [2024-10-13 09:50:16,378 INFO L125 PetriNetUnfolderBase]: For 33171/33521 co-relation queries the response was YES. [2024-10-13 09:50:16,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30432 conditions, 8468 events. 2381/8468 cut-off events. For 33171/33521 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 84006 event pairs, 231 based on Foata normal form. 77/8339 useless extension candidates. Maximal degree in co-relation 30312. Up to 2526 conditions per place. [2024-10-13 09:50:16,456 INFO L140 encePairwiseOnDemand]: 169/202 looper letters, 442 selfloop transitions, 267 changer transitions 1/856 dead transitions. [2024-10-13 09:50:16,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 856 transitions, 10784 flow [2024-10-13 09:50:16,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 09:50:16,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-13 09:50:16,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2156 transitions. [2024-10-13 09:50:16,464 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7115511551155116 [2024-10-13 09:50:16,464 INFO L175 Difference]: Start difference. First operand has 290 places, 630 transitions, 6635 flow. Second operand 15 states and 2156 transitions. [2024-10-13 09:50:16,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 856 transitions, 10784 flow [2024-10-13 09:50:16,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 856 transitions, 10729 flow, removed 2 selfloop flow, removed 9 redundant places. [2024-10-13 09:50:16,613 INFO L231 Difference]: Finished difference. Result has 305 places, 742 transitions, 9634 flow [2024-10-13 09:50:16,614 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=6601, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=630, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=155, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=9634, PETRI_PLACES=305, PETRI_TRANSITIONS=742} [2024-10-13 09:50:16,615 INFO L277 CegarLoopForPetriNet]: 205 programPoint places, 100 predicate places. [2024-10-13 09:50:16,616 INFO L471 AbstractCegarLoop]: Abstraction has has 305 places, 742 transitions, 9634 flow [2024-10-13 09:50:16,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 136.07692307692307) internal successors, (1769), 13 states have internal predecessors, (1769), 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 09:50:16,617 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:50:16,618 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:50:16,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 09:50:16,618 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-13 09:50:16,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:50:16,618 INFO L85 PathProgramCache]: Analyzing trace with hash 492375229, now seen corresponding path program 5 times [2024-10-13 09:50:16,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:50:16,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642894823] [2024-10-13 09:50:16,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:50:16,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:50:16,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:50:17,438 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 09:50:17,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:50:17,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642894823] [2024-10-13 09:50:17,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642894823] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:50:17,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:50:17,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 09:50:17,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782998319] [2024-10-13 09:50:17,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:50:17,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 09:50:17,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:50:17,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 09:50:17,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:50:18,695 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 202 [2024-10-13 09:50:18,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 742 transitions, 9634 flow. Second operand has 13 states, 13 states have (on average 136.07692307692307) internal successors, (1769), 13 states have internal predecessors, (1769), 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 09:50:18,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:50:18,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 202 [2024-10-13 09:50:18,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:50:21,750 INFO L124 PetriNetUnfolderBase]: 3373/11942 cut-off events. [2024-10-13 09:50:21,751 INFO L125 PetriNetUnfolderBase]: For 63044/63637 co-relation queries the response was YES. [2024-10-13 09:50:21,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44888 conditions, 11942 events. 3373/11942 cut-off events. For 63044/63637 co-relation queries the response was YES. Maximal size of possible extension queue 458. Compared 128259 event pairs, 268 based on Foata normal form. 172/11795 useless extension candidates. Maximal degree in co-relation 44758. Up to 2457 conditions per place. [2024-10-13 09:50:21,861 INFO L140 encePairwiseOnDemand]: 171/202 looper letters, 545 selfloop transitions, 398 changer transitions 0/1089 dead transitions. [2024-10-13 09:50:21,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 1089 transitions, 15922 flow [2024-10-13 09:50:21,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-13 09:50:21,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-10-13 09:50:21,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2892 transitions. [2024-10-13 09:50:21,866 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7158415841584158 [2024-10-13 09:50:21,866 INFO L175 Difference]: Start difference. First operand has 305 places, 742 transitions, 9634 flow. Second operand 20 states and 2892 transitions. [2024-10-13 09:50:21,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 1089 transitions, 15922 flow [2024-10-13 09:50:22,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 1089 transitions, 15839 flow, removed 39 selfloop flow, removed 3 redundant places. [2024-10-13 09:50:22,146 INFO L231 Difference]: Finished difference. Result has 331 places, 877 transitions, 13761 flow [2024-10-13 09:50:22,146 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=9599, PETRI_DIFFERENCE_MINUEND_PLACES=302, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=742, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=270, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=13761, PETRI_PLACES=331, PETRI_TRANSITIONS=877} [2024-10-13 09:50:22,147 INFO L277 CegarLoopForPetriNet]: 205 programPoint places, 126 predicate places. [2024-10-13 09:50:22,147 INFO L471 AbstractCegarLoop]: Abstraction has has 331 places, 877 transitions, 13761 flow [2024-10-13 09:50:22,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 136.07692307692307) internal successors, (1769), 13 states have internal predecessors, (1769), 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 09:50:22,148 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:50:22,148 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:50:22,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 09:50:22,148 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-13 09:50:22,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:50:22,148 INFO L85 PathProgramCache]: Analyzing trace with hash 952720691, now seen corresponding path program 6 times [2024-10-13 09:50:22,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:50:22,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486026198] [2024-10-13 09:50:22,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:50:22,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:50:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:50:22,821 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 09:50:22,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:50:22,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486026198] [2024-10-13 09:50:22,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486026198] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:50:22,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:50:22,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 09:50:22,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356539259] [2024-10-13 09:50:22,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:50:22,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 09:50:22,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:50:22,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 09:50:22,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:50:23,942 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 202 [2024-10-13 09:50:23,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 877 transitions, 13761 flow. Second operand has 13 states, 13 states have (on average 136.07692307692307) internal successors, (1769), 13 states have internal predecessors, (1769), 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 09:50:23,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:50:23,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 202 [2024-10-13 09:50:23,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:50:28,149 INFO L124 PetriNetUnfolderBase]: 4271/15159 cut-off events. [2024-10-13 09:50:28,149 INFO L125 PetriNetUnfolderBase]: For 103872/104758 co-relation queries the response was YES. [2024-10-13 09:50:28,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59328 conditions, 15159 events. 4271/15159 cut-off events. For 103872/104758 co-relation queries the response was YES. Maximal size of possible extension queue 604. Compared 172332 event pairs, 462 based on Foata normal form. 265/15013 useless extension candidates. Maximal degree in co-relation 59187. Up to 3093 conditions per place. [2024-10-13 09:50:28,283 INFO L140 encePairwiseOnDemand]: 165/202 looper letters, 572 selfloop transitions, 436 changer transitions 4/1158 dead transitions. [2024-10-13 09:50:28,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 1158 transitions, 19799 flow [2024-10-13 09:50:28,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 09:50:28,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-13 09:50:28,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2256 transitions. [2024-10-13 09:50:28,287 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7445544554455445 [2024-10-13 09:50:28,287 INFO L175 Difference]: Start difference. First operand has 331 places, 877 transitions, 13761 flow. Second operand 15 states and 2256 transitions. [2024-10-13 09:50:28,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 1158 transitions, 19799 flow [2024-10-13 09:50:28,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 1158 transitions, 19644 flow, removed 35 selfloop flow, removed 9 redundant places. [2024-10-13 09:50:28,759 INFO L231 Difference]: Finished difference. Result has 347 places, 983 transitions, 18022 flow [2024-10-13 09:50:28,761 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=13642, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=877, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=331, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=18022, PETRI_PLACES=347, PETRI_TRANSITIONS=983} [2024-10-13 09:50:28,762 INFO L277 CegarLoopForPetriNet]: 205 programPoint places, 142 predicate places. [2024-10-13 09:50:28,762 INFO L471 AbstractCegarLoop]: Abstraction has has 347 places, 983 transitions, 18022 flow [2024-10-13 09:50:28,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 136.07692307692307) internal successors, (1769), 13 states have internal predecessors, (1769), 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 09:50:28,763 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:50:28,763 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:50:28,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 09:50:28,763 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-13 09:50:28,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:50:28,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1844654844, now seen corresponding path program 1 times [2024-10-13 09:50:28,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:50:28,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342752958] [2024-10-13 09:50:28,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:50:28,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:50:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:50:29,391 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 09:50:29,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:50:29,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342752958] [2024-10-13 09:50:29,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342752958] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:50:29,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:50:29,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 09:50:29,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39466130] [2024-10-13 09:50:29,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:50:29,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 09:50:29,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:50:29,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 09:50:29,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:50:30,226 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 202 [2024-10-13 09:50:30,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 983 transitions, 18022 flow. Second operand has 13 states, 13 states have (on average 138.07692307692307) internal successors, (1795), 13 states have internal predecessors, (1795), 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 09:50:30,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:50:30,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 202 [2024-10-13 09:50:30,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:50:35,123 INFO L124 PetriNetUnfolderBase]: 5532/18021 cut-off events. [2024-10-13 09:50:35,123 INFO L125 PetriNetUnfolderBase]: For 127823/128355 co-relation queries the response was YES. [2024-10-13 09:50:35,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74592 conditions, 18021 events. 5532/18021 cut-off events. For 127823/128355 co-relation queries the response was YES. Maximal size of possible extension queue 644. Compared 202854 event pairs, 1013 based on Foata normal form. 105/17695 useless extension candidates. Maximal degree in co-relation 74440. Up to 3939 conditions per place. [2024-10-13 09:50:35,485 INFO L140 encePairwiseOnDemand]: 181/202 looper letters, 494 selfloop transitions, 269 changer transitions 0/1124 dead transitions. [2024-10-13 09:50:35,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 1124 transitions, 21220 flow [2024-10-13 09:50:35,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-13 09:50:35,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-10-13 09:50:35,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2062 transitions. [2024-10-13 09:50:35,490 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7291371994342292 [2024-10-13 09:50:35,490 INFO L175 Difference]: Start difference. First operand has 347 places, 983 transitions, 18022 flow. Second operand 14 states and 2062 transitions. [2024-10-13 09:50:35,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 1124 transitions, 21220 flow [2024-10-13 09:50:36,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 1124 transitions, 21185 flow, removed 15 selfloop flow, removed 3 redundant places. [2024-10-13 09:50:36,064 INFO L231 Difference]: Finished difference. Result has 362 places, 998 transitions, 19160 flow [2024-10-13 09:50:36,065 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=17997, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=983, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=254, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=717, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=19160, PETRI_PLACES=362, PETRI_TRANSITIONS=998} [2024-10-13 09:50:36,065 INFO L277 CegarLoopForPetriNet]: 205 programPoint places, 157 predicate places. [2024-10-13 09:50:36,066 INFO L471 AbstractCegarLoop]: Abstraction has has 362 places, 998 transitions, 19160 flow [2024-10-13 09:50:36,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 138.07692307692307) internal successors, (1795), 13 states have internal predecessors, (1795), 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 09:50:36,066 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:50:36,067 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:50:36,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-13 09:50:36,067 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-13 09:50:36,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:50:36,067 INFO L85 PathProgramCache]: Analyzing trace with hash -968028325, now seen corresponding path program 7 times [2024-10-13 09:50:36,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:50:36,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570604205] [2024-10-13 09:50:36,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:50:36,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:50:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:50:36,967 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 09:50:36,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:50:36,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570604205] [2024-10-13 09:50:36,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570604205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:50:36,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:50:36,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 09:50:36,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894942300] [2024-10-13 09:50:36,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:50:36,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 09:50:36,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:50:36,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 09:50:36,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:50:37,918 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 202 [2024-10-13 09:50:37,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 998 transitions, 19160 flow. Second operand has 13 states, 13 states have (on average 136.07692307692307) internal successors, (1769), 13 states have internal predecessors, (1769), 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 09:50:37,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:50:37,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 202 [2024-10-13 09:50:37,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:50:42,787 INFO L124 PetriNetUnfolderBase]: 5061/18141 cut-off events. [2024-10-13 09:50:42,787 INFO L125 PetriNetUnfolderBase]: For 169197/170324 co-relation queries the response was YES. [2024-10-13 09:50:42,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80770 conditions, 18141 events. 5061/18141 cut-off events. For 169197/170324 co-relation queries the response was YES. Maximal size of possible extension queue 759. Compared 216520 event pairs, 399 based on Foata normal form. 289/17960 useless extension candidates. Maximal degree in co-relation 80612. Up to 4494 conditions per place. [2024-10-13 09:50:43,015 INFO L140 encePairwiseOnDemand]: 166/202 looper letters, 525 selfloop transitions, 605 changer transitions 3/1285 dead transitions. [2024-10-13 09:50:43,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 1285 transitions, 26371 flow [2024-10-13 09:50:43,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 09:50:43,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-13 09:50:43,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2224 transitions. [2024-10-13 09:50:43,019 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.733993399339934 [2024-10-13 09:50:43,019 INFO L175 Difference]: Start difference. First operand has 362 places, 998 transitions, 19160 flow. Second operand 15 states and 2224 transitions. [2024-10-13 09:50:43,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 1285 transitions, 26371 flow [2024-10-13 09:50:43,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 1285 transitions, 26091 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-10-13 09:50:43,816 INFO L231 Difference]: Finished difference. Result has 379 places, 1129 transitions, 25016 flow [2024-10-13 09:50:43,817 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=18975, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=998, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=481, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=25016, PETRI_PLACES=379, PETRI_TRANSITIONS=1129} [2024-10-13 09:50:43,818 INFO L277 CegarLoopForPetriNet]: 205 programPoint places, 174 predicate places. [2024-10-13 09:50:43,818 INFO L471 AbstractCegarLoop]: Abstraction has has 379 places, 1129 transitions, 25016 flow [2024-10-13 09:50:43,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 136.07692307692307) internal successors, (1769), 13 states have internal predecessors, (1769), 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 09:50:43,819 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:50:43,819 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:50:43,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-13 09:50:43,819 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-13 09:50:43,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:50:43,820 INFO L85 PathProgramCache]: Analyzing trace with hash -779533913, now seen corresponding path program 8 times [2024-10-13 09:50:43,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:50:43,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305190730] [2024-10-13 09:50:43,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:50:43,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:50:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:50:44,306 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 09:50:44,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:50:44,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305190730] [2024-10-13 09:50:44,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305190730] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:50:44,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:50:44,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 09:50:44,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125812582] [2024-10-13 09:50:44,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:50:44,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 09:50:44,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:50:44,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 09:50:44,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:50:45,195 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 202 [2024-10-13 09:50:45,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 1129 transitions, 25016 flow. Second operand has 13 states, 13 states have (on average 136.07692307692307) internal successors, (1769), 13 states have internal predecessors, (1769), 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 09:50:45,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:50:45,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 202 [2024-10-13 09:50:45,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:50:51,115 INFO L124 PetriNetUnfolderBase]: 5478/19442 cut-off events. [2024-10-13 09:50:51,115 INFO L125 PetriNetUnfolderBase]: For 233927/235243 co-relation queries the response was YES. [2024-10-13 09:50:51,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90984 conditions, 19442 events. 5478/19442 cut-off events. For 233927/235243 co-relation queries the response was YES. Maximal size of possible extension queue 805. Compared 233236 event pairs, 545 based on Foata normal form. 448/19391 useless extension candidates. Maximal degree in co-relation 90815. Up to 3984 conditions per place. [2024-10-13 09:50:51,341 INFO L140 encePairwiseOnDemand]: 173/202 looper letters, 659 selfloop transitions, 602 changer transitions 0/1413 dead transitions. [2024-10-13 09:50:51,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 1413 transitions, 32436 flow [2024-10-13 09:50:51,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-13 09:50:51,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-13 09:50:51,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2736 transitions. [2024-10-13 09:50:51,345 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7128712871287128 [2024-10-13 09:50:51,345 INFO L175 Difference]: Start difference. First operand has 379 places, 1129 transitions, 25016 flow. Second operand 19 states and 2736 transitions. [2024-10-13 09:50:51,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 1413 transitions, 32436 flow [2024-10-13 09:50:52,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 1413 transitions, 32361 flow, removed 35 selfloop flow, removed 3 redundant places. [2024-10-13 09:50:52,083 INFO L231 Difference]: Finished difference. Result has 402 places, 1220 transitions, 29680 flow [2024-10-13 09:50:52,085 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=24961, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=514, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=536, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=29680, PETRI_PLACES=402, PETRI_TRANSITIONS=1220} [2024-10-13 09:50:52,085 INFO L277 CegarLoopForPetriNet]: 205 programPoint places, 197 predicate places. [2024-10-13 09:50:52,085 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 1220 transitions, 29680 flow [2024-10-13 09:50:52,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 136.07692307692307) internal successors, (1769), 13 states have internal predecessors, (1769), 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 09:50:52,086 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:50:52,086 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:50:52,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-13 09:50:52,087 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-13 09:50:52,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:50:52,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1125404263, now seen corresponding path program 9 times [2024-10-13 09:50:52,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:50:52,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804041924] [2024-10-13 09:50:52,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:50:52,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:50:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:50:52,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:50:52,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:50:52,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804041924] [2024-10-13 09:50:52,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804041924] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:50:52,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:50:52,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 09:50:52,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107315051] [2024-10-13 09:50:52,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:50:52,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 09:50:52,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:50:52,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 09:50:52,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:50:53,813 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 202 [2024-10-13 09:50:53,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 1220 transitions, 29680 flow. Second operand has 13 states, 13 states have (on average 136.07692307692307) internal successors, (1769), 13 states have internal predecessors, (1769), 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 09:50:53,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:50:53,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 202 [2024-10-13 09:50:53,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:00,454 INFO L124 PetriNetUnfolderBase]: 5757/20401 cut-off events. [2024-10-13 09:51:00,454 INFO L125 PetriNetUnfolderBase]: For 287616/289001 co-relation queries the response was YES. [2024-10-13 09:51:00,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99367 conditions, 20401 events. 5757/20401 cut-off events. For 287616/289001 co-relation queries the response was YES. Maximal size of possible extension queue 850. Compared 246999 event pairs, 584 based on Foata normal form. 454/20327 useless extension candidates. Maximal degree in co-relation 99189. Up to 4194 conditions per place. [2024-10-13 09:51:00,723 INFO L140 encePairwiseOnDemand]: 173/202 looper letters, 644 selfloop transitions, 649 changer transitions 0/1445 dead transitions. [2024-10-13 09:51:00,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 1445 transitions, 36400 flow [2024-10-13 09:51:00,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-13 09:51:00,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-10-13 09:51:00,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2734 transitions. [2024-10-13 09:51:00,725 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7123501823866597 [2024-10-13 09:51:00,725 INFO L175 Difference]: Start difference. First operand has 402 places, 1220 transitions, 29680 flow. Second operand 19 states and 2734 transitions. [2024-10-13 09:51:00,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 1445 transitions, 36400 flow [2024-10-13 09:51:02,057 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 1445 transitions, 36192 flow, removed 62 selfloop flow, removed 9 redundant places. [2024-10-13 09:51:02,094 INFO L231 Difference]: Finished difference. Result has 418 places, 1291 transitions, 34454 flow [2024-10-13 09:51:02,095 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=29476, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=579, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=577, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=34454, PETRI_PLACES=418, PETRI_TRANSITIONS=1291} [2024-10-13 09:51:02,096 INFO L277 CegarLoopForPetriNet]: 205 programPoint places, 213 predicate places. [2024-10-13 09:51:02,096 INFO L471 AbstractCegarLoop]: Abstraction has has 418 places, 1291 transitions, 34454 flow [2024-10-13 09:51:02,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 136.07692307692307) internal successors, (1769), 13 states have internal predecessors, (1769), 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 09:51:02,097 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:02,097 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:51:02,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-13 09:51:02,097 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-10-13 09:51:02,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:02,097 INFO L85 PathProgramCache]: Analyzing trace with hash -205405937, now seen corresponding path program 10 times [2024-10-13 09:51:02,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:02,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335470565] [2024-10-13 09:51:02,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:02,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:02,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:02,704 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 09:51:02,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:02,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335470565] [2024-10-13 09:51:02,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335470565] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:02,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:02,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-13 09:51:02,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628172796] [2024-10-13 09:51:02,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:02,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-13 09:51:02,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:02,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-13 09:51:02,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-10-13 09:51:04,012 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 202 [2024-10-13 09:51:04,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 1291 transitions, 34454 flow. Second operand has 13 states, 13 states have (on average 136.07692307692307) internal successors, (1769), 13 states have internal predecessors, (1769), 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 09:51:04,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:04,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 202 [2024-10-13 09:51:04,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand