./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_24-evilcollapse_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_24-evilcollapse_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 085e9170c725dbfce47ad23ff96af1e2e4188372955794675158fde45968fe8a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:51:34,912 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:51:34,973 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:51:34,980 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:51:34,980 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:51:35,004 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:51:35,005 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:51:35,006 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:51:35,006 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:51:35,007 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:51:35,008 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:51:35,008 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:51:35,009 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:51:35,009 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:51:35,010 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:51:35,011 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:51:35,011 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:51:35,011 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:51:35,011 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:51:35,011 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:51:35,011 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:51:35,012 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:51:35,012 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:51:35,012 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:51:35,012 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:51:35,013 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:51:35,013 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:51:35,013 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:51:35,013 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:51:35,013 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:51:35,014 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:51:35,014 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:51:35,014 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:51:35,014 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:51:35,014 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:51:35,015 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:51:35,015 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:51:35,015 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:51:35,015 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:51:35,015 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:51:35,016 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:51:35,018 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 085e9170c725dbfce47ad23ff96af1e2e4188372955794675158fde45968fe8a [2024-10-13 09:51:35,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:51:35,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:51:35,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:51:35,300 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:51:35,301 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:51:35,302 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i [2024-10-13 09:51:36,549 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:51:36,759 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:51:36,761 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_24-evilcollapse_nr.i [2024-10-13 09:51:36,777 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53b64e749/b67019d821f84733a62d07f327554247/FLAGba1b00413 [2024-10-13 09:51:36,790 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53b64e749/b67019d821f84733a62d07f327554247 [2024-10-13 09:51:36,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:51:36,793 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:51:36,794 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:51:36,794 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:51:36,800 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:51:36,801 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:51:36" (1/1) ... [2024-10-13 09:51:36,801 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@feac48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:36, skipping insertion in model container [2024-10-13 09:51:36,801 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:51:36" (1/1) ... [2024-10-13 09:51:36,837 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:51:37,188 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 09:51:37,189 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 09:51:37,191 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 09:51:37,193 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 09:51:37,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:51:37,241 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:51:37,274 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 09:51:37,275 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 09:51:37,275 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 09:51:37,276 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-13 09:51:37,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:51:37,336 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:51:37,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:37 WrapperNode [2024-10-13 09:51:37,337 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:51:37,338 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:51:37,338 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:51:37,338 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:51:37,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:37" (1/1) ... [2024-10-13 09:51:37,357 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:37" (1/1) ... [2024-10-13 09:51:37,391 INFO L138 Inliner]: procedures = 273, calls = 31, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 253 [2024-10-13 09:51:37,391 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:51:37,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:51:37,392 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:51:37,392 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:51:37,399 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:37" (1/1) ... [2024-10-13 09:51:37,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:37" (1/1) ... [2024-10-13 09:51:37,408 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:37" (1/1) ... [2024-10-13 09:51:37,408 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:37" (1/1) ... [2024-10-13 09:51:37,427 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:37" (1/1) ... [2024-10-13 09:51:37,435 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:37" (1/1) ... [2024-10-13 09:51:37,437 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:37" (1/1) ... [2024-10-13 09:51:37,443 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:37" (1/1) ... [2024-10-13 09:51:37,449 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:51:37,450 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:51:37,451 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:51:37,451 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:51:37,452 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:37" (1/1) ... [2024-10-13 09:51:37,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:51:37,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:37,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 09:51:37,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 09:51:37,552 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-10-13 09:51:37,554 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-10-13 09:51:37,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-13 09:51:37,554 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 09:51:37,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-13 09:51:37,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-13 09:51:37,554 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 09:51:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 09:51:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:51:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-13 09:51:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:51:37,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:51:37,560 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 09:51:37,752 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:51:37,754 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:51:38,217 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:51:38,217 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:51:38,248 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:51:38,248 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-13 09:51:38,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:51:38 BoogieIcfgContainer [2024-10-13 09:51:38,249 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:51:38,252 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:51:38,253 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:51:38,256 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:51:38,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:51:36" (1/3) ... [2024-10-13 09:51:38,256 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e968404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:51:38, skipping insertion in model container [2024-10-13 09:51:38,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:51:37" (2/3) ... [2024-10-13 09:51:38,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e968404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:51:38, skipping insertion in model container [2024-10-13 09:51:38,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:51:38" (3/3) ... [2024-10-13 09:51:38,258 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_24-evilcollapse_nr.i [2024-10-13 09:51:38,274 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:51:38,274 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-10-13 09:51:38,274 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:51:38,371 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-13 09:51:38,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 361 places, 371 transitions, 750 flow [2024-10-13 09:51:38,515 INFO L124 PetriNetUnfolderBase]: 17/369 cut-off events. [2024-10-13 09:51:38,517 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:51:38,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 369 events. 17/369 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 793 event pairs, 0 based on Foata normal form. 0/332 useless extension candidates. Maximal degree in co-relation 294. Up to 2 conditions per place. [2024-10-13 09:51:38,530 INFO L82 GeneralOperation]: Start removeDead. Operand has 361 places, 371 transitions, 750 flow [2024-10-13 09:51:38,542 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 359 places, 369 transitions, 744 flow [2024-10-13 09:51:38,554 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:51:38,561 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;@50a20ea7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:51:38,561 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-10-13 09:51:38,570 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:51:38,571 INFO L124 PetriNetUnfolderBase]: 1/45 cut-off events. [2024-10-13 09:51:38,571 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:51:38,571 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:38,571 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] [2024-10-13 09:51:38,572 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:38,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:38,578 INFO L85 PathProgramCache]: Analyzing trace with hash 213288283, now seen corresponding path program 1 times [2024-10-13 09:51:38,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:38,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122852111] [2024-10-13 09:51:38,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:38,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:38,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:39,252 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 09:51:39,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:39,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122852111] [2024-10-13 09:51:39,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122852111] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:39,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:39,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:39,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505762602] [2024-10-13 09:51:39,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:39,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:39,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:39,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:39,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:39,787 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 371 [2024-10-13 09:51:39,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 369 transitions, 744 flow. Second operand has 6 states, 6 states have (on average 270.3333333333333) internal successors, (1622), 6 states have internal predecessors, (1622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:39,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:39,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 371 [2024-10-13 09:51:39,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:40,293 INFO L124 PetriNetUnfolderBase]: 450/1840 cut-off events. [2024-10-13 09:51:40,294 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-10-13 09:51:40,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2747 conditions, 1840 events. 450/1840 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 11559 event pairs, 342 based on Foata normal form. 154/1782 useless extension candidates. Maximal degree in co-relation 2477. Up to 854 conditions per place. [2024-10-13 09:51:40,310 INFO L140 encePairwiseOnDemand]: 349/371 looper letters, 80 selfloop transitions, 10 changer transitions 2/357 dead transitions. [2024-10-13 09:51:40,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 357 transitions, 900 flow [2024-10-13 09:51:40,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:40,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:40,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1716 transitions. [2024-10-13 09:51:40,332 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.77088948787062 [2024-10-13 09:51:40,334 INFO L175 Difference]: Start difference. First operand has 359 places, 369 transitions, 744 flow. Second operand 6 states and 1716 transitions. [2024-10-13 09:51:40,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 357 transitions, 900 flow [2024-10-13 09:51:40,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 357 transitions, 898 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:51:40,347 INFO L231 Difference]: Finished difference. Result has 360 places, 355 transitions, 734 flow [2024-10-13 09:51:40,349 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=734, PETRI_PLACES=360, PETRI_TRANSITIONS=355} [2024-10-13 09:51:40,352 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, 1 predicate places. [2024-10-13 09:51:40,354 INFO L471 AbstractCegarLoop]: Abstraction has has 360 places, 355 transitions, 734 flow [2024-10-13 09:51:40,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 270.3333333333333) internal successors, (1622), 6 states have internal predecessors, (1622), 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 09:51:40,356 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:40,356 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:40,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:51:40,357 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:40,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:40,358 INFO L85 PathProgramCache]: Analyzing trace with hash 94145668, now seen corresponding path program 1 times [2024-10-13 09:51:40,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:40,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582079759] [2024-10-13 09:51:40,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:40,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:40,646 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 09:51:40,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:40,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582079759] [2024-10-13 09:51:40,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582079759] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:40,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:40,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:40,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000510487] [2024-10-13 09:51:40,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:40,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:40,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:40,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:40,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:41,150 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 371 [2024-10-13 09:51:41,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 355 transitions, 734 flow. Second operand has 6 states, 6 states have (on average 270.3333333333333) internal successors, (1622), 6 states have internal predecessors, (1622), 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 09:51:41,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:41,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 371 [2024-10-13 09:51:41,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:41,358 INFO L124 PetriNetUnfolderBase]: 450/1836 cut-off events. [2024-10-13 09:51:41,358 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:51:41,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2752 conditions, 1836 events. 450/1836 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 11492 event pairs, 342 based on Foata normal form. 0/1628 useless extension candidates. Maximal degree in co-relation 2578. Up to 854 conditions per place. [2024-10-13 09:51:41,368 INFO L140 encePairwiseOnDemand]: 359/371 looper letters, 80 selfloop transitions, 10 changer transitions 0/353 dead transitions. [2024-10-13 09:51:41,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 353 transitions, 910 flow [2024-10-13 09:51:41,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:41,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:41,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1706 transitions. [2024-10-13 09:51:41,371 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.766397124887691 [2024-10-13 09:51:41,371 INFO L175 Difference]: Start difference. First operand has 360 places, 355 transitions, 734 flow. Second operand 6 states and 1706 transitions. [2024-10-13 09:51:41,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 353 transitions, 910 flow [2024-10-13 09:51:41,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 353 transitions, 890 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:41,377 INFO L231 Difference]: Finished difference. Result has 356 places, 353 transitions, 730 flow [2024-10-13 09:51:41,377 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=730, PETRI_PLACES=356, PETRI_TRANSITIONS=353} [2024-10-13 09:51:41,378 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, -3 predicate places. [2024-10-13 09:51:41,378 INFO L471 AbstractCegarLoop]: Abstraction has has 356 places, 353 transitions, 730 flow [2024-10-13 09:51:41,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 270.3333333333333) internal successors, (1622), 6 states have internal predecessors, (1622), 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 09:51:41,379 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:41,379 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] [2024-10-13 09:51:41,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 09:51:41,380 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:41,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:41,380 INFO L85 PathProgramCache]: Analyzing trace with hash 868605457, now seen corresponding path program 1 times [2024-10-13 09:51:41,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:41,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865155954] [2024-10-13 09:51:41,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:41,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:41,409 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 09:51:41,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:41,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865155954] [2024-10-13 09:51:41,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865155954] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:41,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:41,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:51:41,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554929622] [2024-10-13 09:51:41,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:41,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:51:41,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:41,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:51:41,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:51:41,423 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 371 [2024-10-13 09:51:41,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 353 transitions, 730 flow. Second operand has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 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 09:51:41,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:41,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 371 [2024-10-13 09:51:41,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:41,482 INFO L124 PetriNetUnfolderBase]: 30/655 cut-off events. [2024-10-13 09:51:41,482 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:51:41,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 731 conditions, 655 events. 30/655 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2575 event pairs, 18 based on Foata normal form. 1/601 useless extension candidates. Maximal degree in co-relation 493. Up to 45 conditions per place. [2024-10-13 09:51:41,485 INFO L140 encePairwiseOnDemand]: 368/371 looper letters, 11 selfloop transitions, 2 changer transitions 0/354 dead transitions. [2024-10-13 09:51:41,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 354 transitions, 758 flow [2024-10-13 09:51:41,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:51:41,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:51:41,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1061 transitions. [2024-10-13 09:51:41,487 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9532794249775381 [2024-10-13 09:51:41,487 INFO L175 Difference]: Start difference. First operand has 356 places, 353 transitions, 730 flow. Second operand 3 states and 1061 transitions. [2024-10-13 09:51:41,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 354 transitions, 758 flow [2024-10-13 09:51:41,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 354 transitions, 738 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:41,494 INFO L231 Difference]: Finished difference. Result has 354 places, 354 transitions, 722 flow [2024-10-13 09:51:41,494 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=722, PETRI_PLACES=354, PETRI_TRANSITIONS=354} [2024-10-13 09:51:41,495 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, -5 predicate places. [2024-10-13 09:51:41,495 INFO L471 AbstractCegarLoop]: Abstraction has has 354 places, 354 transitions, 722 flow [2024-10-13 09:51:41,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 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 09:51:41,496 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:41,496 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:41,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 09:51:41,496 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:41,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:41,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1288224689, now seen corresponding path program 1 times [2024-10-13 09:51:41,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:41,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492979433] [2024-10-13 09:51:41,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:41,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:41,798 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 09:51:41,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:41,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492979433] [2024-10-13 09:51:41,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492979433] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:41,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:41,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:41,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402471202] [2024-10-13 09:51:41,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:41,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:41,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:41,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:41,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:42,089 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 371 [2024-10-13 09:51:42,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 354 transitions, 722 flow. Second operand has 6 states, 6 states have (on average 270.6666666666667) internal successors, (1624), 6 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:42,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:42,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 371 [2024-10-13 09:51:42,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:42,291 INFO L124 PetriNetUnfolderBase]: 451/1958 cut-off events. [2024-10-13 09:51:42,291 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:51:42,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2918 conditions, 1958 events. 451/1958 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12160 event pairs, 342 based on Foata normal form. 0/1746 useless extension candidates. Maximal degree in co-relation 2726. Up to 902 conditions per place. [2024-10-13 09:51:42,302 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 87 selfloop transitions, 5 changer transitions 0/353 dead transitions. [2024-10-13 09:51:42,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 353 transitions, 904 flow [2024-10-13 09:51:42,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:42,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:42,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1701 transitions. [2024-10-13 09:51:42,306 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7641509433962265 [2024-10-13 09:51:42,306 INFO L175 Difference]: Start difference. First operand has 354 places, 354 transitions, 722 flow. Second operand 6 states and 1701 transitions. [2024-10-13 09:51:42,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 353 transitions, 904 flow [2024-10-13 09:51:42,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 353 transitions, 902 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:51:42,311 INFO L231 Difference]: Finished difference. Result has 357 places, 353 transitions, 728 flow [2024-10-13 09:51:42,311 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=728, PETRI_PLACES=357, PETRI_TRANSITIONS=353} [2024-10-13 09:51:42,312 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, -2 predicate places. [2024-10-13 09:51:42,312 INFO L471 AbstractCegarLoop]: Abstraction has has 357 places, 353 transitions, 728 flow [2024-10-13 09:51:42,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 270.6666666666667) internal successors, (1624), 6 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:42,313 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:42,313 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] [2024-10-13 09:51:42,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 09:51:42,314 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:42,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:42,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1482197880, now seen corresponding path program 1 times [2024-10-13 09:51:42,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:42,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407285618] [2024-10-13 09:51:42,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:42,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:42,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:42,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:42,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407285618] [2024-10-13 09:51:42,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407285618] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:42,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:42,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:51:42,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545034738] [2024-10-13 09:51:42,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:42,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:51:42,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:42,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:51:42,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:51:42,375 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 371 [2024-10-13 09:51:42,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 353 transitions, 728 flow. Second operand has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:42,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:42,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 371 [2024-10-13 09:51:42,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:42,457 INFO L124 PetriNetUnfolderBase]: 30/841 cut-off events. [2024-10-13 09:51:42,457 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:51:42,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 927 conditions, 841 events. 30/841 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2581 event pairs, 18 based on Foata normal form. 2/782 useless extension candidates. Maximal degree in co-relation 571. Up to 49 conditions per place. [2024-10-13 09:51:42,461 INFO L140 encePairwiseOnDemand]: 368/371 looper letters, 11 selfloop transitions, 2 changer transitions 0/354 dead transitions. [2024-10-13 09:51:42,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 354 transitions, 756 flow [2024-10-13 09:51:42,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:51:42,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:51:42,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1061 transitions. [2024-10-13 09:51:42,463 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9532794249775381 [2024-10-13 09:51:42,463 INFO L175 Difference]: Start difference. First operand has 357 places, 353 transitions, 728 flow. Second operand 3 states and 1061 transitions. [2024-10-13 09:51:42,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 354 transitions, 756 flow [2024-10-13 09:51:42,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 354 transitions, 746 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:42,468 INFO L231 Difference]: Finished difference. Result has 355 places, 354 transitions, 730 flow [2024-10-13 09:51:42,468 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=730, PETRI_PLACES=355, PETRI_TRANSITIONS=354} [2024-10-13 09:51:42,469 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, -4 predicate places. [2024-10-13 09:51:42,469 INFO L471 AbstractCegarLoop]: Abstraction has has 355 places, 354 transitions, 730 flow [2024-10-13 09:51:42,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:42,470 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:42,470 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] [2024-10-13 09:51:42,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 09:51:42,470 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:42,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:42,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1947466662, now seen corresponding path program 1 times [2024-10-13 09:51:42,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:42,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455816594] [2024-10-13 09:51:42,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:42,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:42,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:42,834 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 09:51:42,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:42,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455816594] [2024-10-13 09:51:42,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455816594] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:42,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:42,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:42,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427757136] [2024-10-13 09:51:42,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:42,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:42,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:42,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:42,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:43,361 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 371 [2024-10-13 09:51:43,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 354 transitions, 730 flow. Second operand has 6 states, 6 states have (on average 305.5) internal successors, (1833), 6 states have internal predecessors, (1833), 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 09:51:43,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:43,364 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 371 [2024-10-13 09:51:43,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:43,574 INFO L124 PetriNetUnfolderBase]: 76/1153 cut-off events. [2024-10-13 09:51:43,575 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-13 09:51:43,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1470 conditions, 1153 events. 76/1153 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4688 event pairs, 42 based on Foata normal form. 0/1057 useless extension candidates. Maximal degree in co-relation 1011. Up to 263 conditions per place. [2024-10-13 09:51:43,579 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 54 selfloop transitions, 5 changer transitions 0/353 dead transitions. [2024-10-13 09:51:43,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 353 transitions, 846 flow [2024-10-13 09:51:43,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:43,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:43,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1866 transitions. [2024-10-13 09:51:43,583 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8382749326145552 [2024-10-13 09:51:43,583 INFO L175 Difference]: Start difference. First operand has 355 places, 354 transitions, 730 flow. Second operand 6 states and 1866 transitions. [2024-10-13 09:51:43,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 353 transitions, 846 flow [2024-10-13 09:51:43,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 353 transitions, 844 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:51:43,588 INFO L231 Difference]: Finished difference. Result has 358 places, 353 transitions, 736 flow [2024-10-13 09:51:43,589 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=726, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=736, PETRI_PLACES=358, PETRI_TRANSITIONS=353} [2024-10-13 09:51:43,590 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, -1 predicate places. [2024-10-13 09:51:43,590 INFO L471 AbstractCegarLoop]: Abstraction has has 358 places, 353 transitions, 736 flow [2024-10-13 09:51:43,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 305.5) internal successors, (1833), 6 states have internal predecessors, (1833), 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 09:51:43,591 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:43,591 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] [2024-10-13 09:51:43,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 09:51:43,591 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:43,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:43,592 INFO L85 PathProgramCache]: Analyzing trace with hash 2124639414, now seen corresponding path program 1 times [2024-10-13 09:51:43,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:43,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172202130] [2024-10-13 09:51:43,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:43,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:43,989 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 09:51:43,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:43,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172202130] [2024-10-13 09:51:43,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172202130] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:43,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:43,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:43,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155451233] [2024-10-13 09:51:43,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:43,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:43,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:43,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:43,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:44,389 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 371 [2024-10-13 09:51:44,391 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 353 transitions, 736 flow. Second operand has 6 states, 6 states have (on average 273.3333333333333) internal successors, (1640), 6 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:44,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:44,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 371 [2024-10-13 09:51:44,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:44,618 INFO L124 PetriNetUnfolderBase]: 451/2138 cut-off events. [2024-10-13 09:51:44,618 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-13 09:51:44,623 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3202 conditions, 2138 events. 451/2138 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12393 event pairs, 342 based on Foata normal form. 0/1926 useless extension candidates. Maximal degree in co-relation 2769. Up to 968 conditions per place. [2024-10-13 09:51:44,660 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 87 selfloop transitions, 5 changer transitions 0/352 dead transitions. [2024-10-13 09:51:44,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 352 transitions, 918 flow [2024-10-13 09:51:44,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:44,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:44,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1701 transitions. [2024-10-13 09:51:44,665 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7641509433962265 [2024-10-13 09:51:44,665 INFO L175 Difference]: Start difference. First operand has 358 places, 353 transitions, 736 flow. Second operand 6 states and 1701 transitions. [2024-10-13 09:51:44,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 352 transitions, 918 flow [2024-10-13 09:51:44,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 352 transitions, 908 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:44,670 INFO L231 Difference]: Finished difference. Result has 357 places, 352 transitions, 734 flow [2024-10-13 09:51:44,671 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=734, PETRI_PLACES=357, PETRI_TRANSITIONS=352} [2024-10-13 09:51:44,672 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, -2 predicate places. [2024-10-13 09:51:44,672 INFO L471 AbstractCegarLoop]: Abstraction has has 357 places, 352 transitions, 734 flow [2024-10-13 09:51:44,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 273.3333333333333) internal successors, (1640), 6 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:44,673 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:44,673 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] [2024-10-13 09:51:44,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 09:51:44,673 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:44,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:44,674 INFO L85 PathProgramCache]: Analyzing trace with hash -740298437, now seen corresponding path program 1 times [2024-10-13 09:51:44,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:44,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259988260] [2024-10-13 09:51:44,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:44,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:45,068 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 09:51:45,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:45,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259988260] [2024-10-13 09:51:45,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259988260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:45,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:45,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:45,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661201726] [2024-10-13 09:51:45,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:45,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:45,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:45,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:45,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:45,383 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 371 [2024-10-13 09:51:45,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 352 transitions, 734 flow. Second operand has 6 states, 6 states have (on average 278.0) internal successors, (1668), 6 states have internal predecessors, (1668), 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 09:51:45,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:45,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 371 [2024-10-13 09:51:45,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:45,688 INFO L124 PetriNetUnfolderBase]: 451/2134 cut-off events. [2024-10-13 09:51:45,689 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-13 09:51:45,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3182 conditions, 2134 events. 451/2134 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12332 event pairs, 342 based on Foata normal form. 0/1926 useless extension candidates. Maximal degree in co-relation 2785. Up to 952 conditions per place. [2024-10-13 09:51:45,698 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 83 selfloop transitions, 5 changer transitions 0/351 dead transitions. [2024-10-13 09:51:45,699 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 351 transitions, 908 flow [2024-10-13 09:51:45,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:45,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:45,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1721 transitions. [2024-10-13 09:51:45,703 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7731356693620844 [2024-10-13 09:51:45,703 INFO L175 Difference]: Start difference. First operand has 357 places, 352 transitions, 734 flow. Second operand 6 states and 1721 transitions. [2024-10-13 09:51:45,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 351 transitions, 908 flow [2024-10-13 09:51:45,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 351 transitions, 898 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:45,708 INFO L231 Difference]: Finished difference. Result has 356 places, 351 transitions, 732 flow [2024-10-13 09:51:45,709 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=732, PETRI_PLACES=356, PETRI_TRANSITIONS=351} [2024-10-13 09:51:45,709 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, -3 predicate places. [2024-10-13 09:51:45,709 INFO L471 AbstractCegarLoop]: Abstraction has has 356 places, 351 transitions, 732 flow [2024-10-13 09:51:45,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 278.0) internal successors, (1668), 6 states have internal predecessors, (1668), 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 09:51:45,711 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:45,711 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] [2024-10-13 09:51:45,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 09:51:45,711 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:45,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:45,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1998976421, now seen corresponding path program 1 times [2024-10-13 09:51:45,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:45,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456269814] [2024-10-13 09:51:45,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:45,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:46,125 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 09:51:46,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:46,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456269814] [2024-10-13 09:51:46,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456269814] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:46,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:46,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:46,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464002066] [2024-10-13 09:51:46,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:46,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:46,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:46,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:46,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:46,510 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 371 [2024-10-13 09:51:46,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 351 transitions, 732 flow. Second operand has 6 states, 6 states have (on average 278.0) internal successors, (1668), 6 states have internal predecessors, (1668), 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 09:51:46,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:46,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 371 [2024-10-13 09:51:46,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:46,710 INFO L124 PetriNetUnfolderBase]: 451/2130 cut-off events. [2024-10-13 09:51:46,710 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:51:46,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3178 conditions, 2130 events. 451/2130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12276 event pairs, 342 based on Foata normal form. 0/1926 useless extension candidates. Maximal degree in co-relation 2800. Up to 952 conditions per place. [2024-10-13 09:51:46,723 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 83 selfloop transitions, 5 changer transitions 0/350 dead transitions. [2024-10-13 09:51:46,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 350 transitions, 906 flow [2024-10-13 09:51:46,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:46,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:46,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1721 transitions. [2024-10-13 09:51:46,728 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7731356693620844 [2024-10-13 09:51:46,728 INFO L175 Difference]: Start difference. First operand has 356 places, 351 transitions, 732 flow. Second operand 6 states and 1721 transitions. [2024-10-13 09:51:46,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 350 transitions, 906 flow [2024-10-13 09:51:46,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 350 transitions, 896 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:46,733 INFO L231 Difference]: Finished difference. Result has 355 places, 350 transitions, 730 flow [2024-10-13 09:51:46,733 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=730, PETRI_PLACES=355, PETRI_TRANSITIONS=350} [2024-10-13 09:51:46,734 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, -4 predicate places. [2024-10-13 09:51:46,735 INFO L471 AbstractCegarLoop]: Abstraction has has 355 places, 350 transitions, 730 flow [2024-10-13 09:51:46,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 278.0) internal successors, (1668), 6 states have internal predecessors, (1668), 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 09:51:46,736 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:46,736 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:46,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 09:51:46,736 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:46,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:46,737 INFO L85 PathProgramCache]: Analyzing trace with hash -362237043, now seen corresponding path program 1 times [2024-10-13 09:51:46,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:46,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070624872] [2024-10-13 09:51:46,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:46,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:47,087 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 09:51:47,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:47,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070624872] [2024-10-13 09:51:47,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070624872] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:47,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:51:47,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:51:47,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930425986] [2024-10-13 09:51:47,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:47,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:47,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:47,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:47,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:51:47,359 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 371 [2024-10-13 09:51:47,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 350 transitions, 730 flow. Second operand has 6 states, 6 states have (on average 274.5) internal successors, (1647), 6 states have internal predecessors, (1647), 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 09:51:47,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:47,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 371 [2024-10-13 09:51:47,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:47,671 INFO L124 PetriNetUnfolderBase]: 451/2126 cut-off events. [2024-10-13 09:51:47,672 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-13 09:51:47,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3194 conditions, 2126 events. 451/2126 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 12266 event pairs, 342 based on Foata normal form. 0/1926 useless extension candidates. Maximal degree in co-relation 2813. Up to 972 conditions per place. [2024-10-13 09:51:47,684 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 88 selfloop transitions, 5 changer transitions 0/349 dead transitions. [2024-10-13 09:51:47,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 349 transitions, 914 flow [2024-10-13 09:51:47,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:47,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:47,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1696 transitions. [2024-10-13 09:51:47,688 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7619047619047619 [2024-10-13 09:51:47,688 INFO L175 Difference]: Start difference. First operand has 355 places, 350 transitions, 730 flow. Second operand 6 states and 1696 transitions. [2024-10-13 09:51:47,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 349 transitions, 914 flow [2024-10-13 09:51:47,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 349 transitions, 904 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:47,694 INFO L231 Difference]: Finished difference. Result has 354 places, 349 transitions, 728 flow [2024-10-13 09:51:47,695 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=728, PETRI_PLACES=354, PETRI_TRANSITIONS=349} [2024-10-13 09:51:47,696 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, -5 predicate places. [2024-10-13 09:51:47,697 INFO L471 AbstractCegarLoop]: Abstraction has has 354 places, 349 transitions, 728 flow [2024-10-13 09:51:47,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 274.5) internal successors, (1647), 6 states have internal predecessors, (1647), 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 09:51:47,698 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:47,698 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:51:47,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 09:51:47,698 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:47,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:47,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1335879777, now seen corresponding path program 1 times [2024-10-13 09:51:47,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:47,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808083584] [2024-10-13 09:51:47,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:47,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:47,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:47,865 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:47,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:47,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808083584] [2024-10-13 09:51:47,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808083584] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:47,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418662061] [2024-10-13 09:51:47,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:47,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:47,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:47,868 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:47,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 09:51:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:48,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 09:51:48,051 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:48,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:48,202 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:51:48,327 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:48,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418662061] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:51:48,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:51:48,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-13 09:51:48,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311129470] [2024-10-13 09:51:48,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:51:48,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:51:48,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:48,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:51:48,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-13 09:51:48,358 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 371 [2024-10-13 09:51:48,361 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 349 transitions, 728 flow. Second operand has 10 states, 10 states have (on average 347.8) internal successors, (3478), 10 states have internal predecessors, (3478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:48,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:48,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 371 [2024-10-13 09:51:48,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:48,522 INFO L124 PetriNetUnfolderBase]: 30/1005 cut-off events. [2024-10-13 09:51:48,523 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-13 09:51:48,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 1005 events. 30/1005 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1997 event pairs, 18 based on Foata normal form. 4/968 useless extension candidates. Maximal degree in co-relation 564. Up to 49 conditions per place. [2024-10-13 09:51:48,526 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 15 selfloop transitions, 9 changer transitions 0/357 dead transitions. [2024-10-13 09:51:48,526 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 357 transitions, 794 flow [2024-10-13 09:51:48,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 09:51:48,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 09:51:48,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3140 transitions. [2024-10-13 09:51:48,531 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9404013177598083 [2024-10-13 09:51:48,531 INFO L175 Difference]: Start difference. First operand has 354 places, 349 transitions, 728 flow. Second operand 9 states and 3140 transitions. [2024-10-13 09:51:48,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 357 transitions, 794 flow [2024-10-13 09:51:48,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 357 transitions, 784 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:48,535 INFO L231 Difference]: Finished difference. Result has 360 places, 355 transitions, 768 flow [2024-10-13 09:51:48,536 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=768, PETRI_PLACES=360, PETRI_TRANSITIONS=355} [2024-10-13 09:51:48,536 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, 1 predicate places. [2024-10-13 09:51:48,536 INFO L471 AbstractCegarLoop]: Abstraction has has 360 places, 355 transitions, 768 flow [2024-10-13 09:51:48,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 347.8) internal successors, (3478), 10 states have internal predecessors, (3478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:48,538 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:48,539 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:48,555 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 09:51:48,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-13 09:51:48,742 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:48,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:48,742 INFO L85 PathProgramCache]: Analyzing trace with hash -2078138507, now seen corresponding path program 2 times [2024-10-13 09:51:48,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:48,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025429523] [2024-10-13 09:51:48,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:48,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:49,102 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-10-13 09:51:49,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:49,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025429523] [2024-10-13 09:51:49,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025429523] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:49,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681472013] [2024-10-13 09:51:49,105 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:51:49,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:49,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:49,109 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:49,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 09:51:49,312 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:51:49,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:51:49,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-13 09:51:49,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:49,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-13 09:51:49,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-13 09:51:49,405 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:51:49,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 09:51:49,438 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:51:49,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 09:51:49,463 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-10-13 09:51:49,463 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:51:49,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681472013] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:49,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:51:49,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-10-13 09:51:49,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684819301] [2024-10-13 09:51:49,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:49,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:49,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:49,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:49,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-13 09:51:50,068 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 371 [2024-10-13 09:51:50,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 355 transitions, 768 flow. Second operand has 6 states, 6 states have (on average 308.3333333333333) internal successors, (1850), 6 states have internal predecessors, (1850), 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 09:51:50,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:50,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 371 [2024-10-13 09:51:50,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:50,261 INFO L124 PetriNetUnfolderBase]: 76/1320 cut-off events. [2024-10-13 09:51:50,261 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-10-13 09:51:50,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1708 conditions, 1320 events. 76/1320 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4049 event pairs, 42 based on Foata normal form. 0/1237 useless extension candidates. Maximal degree in co-relation 1133. Up to 307 conditions per place. [2024-10-13 09:51:50,273 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 54 selfloop transitions, 5 changer transitions 0/354 dead transitions. [2024-10-13 09:51:50,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 354 transitions, 884 flow [2024-10-13 09:51:50,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:50,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:50,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1866 transitions. [2024-10-13 09:51:50,276 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8382749326145552 [2024-10-13 09:51:50,276 INFO L175 Difference]: Start difference. First operand has 360 places, 355 transitions, 768 flow. Second operand 6 states and 1866 transitions. [2024-10-13 09:51:50,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 354 transitions, 884 flow [2024-10-13 09:51:50,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 354 transitions, 878 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-13 09:51:50,282 INFO L231 Difference]: Finished difference. Result has 363 places, 354 transitions, 770 flow [2024-10-13 09:51:50,283 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=770, PETRI_PLACES=363, PETRI_TRANSITIONS=354} [2024-10-13 09:51:50,284 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, 4 predicate places. [2024-10-13 09:51:50,284 INFO L471 AbstractCegarLoop]: Abstraction has has 363 places, 354 transitions, 770 flow [2024-10-13 09:51:50,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 308.3333333333333) internal successors, (1850), 6 states have internal predecessors, (1850), 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 09:51:50,285 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:50,286 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:51:50,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 09:51:50,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-13 09:51:50,491 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:50,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:50,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1040596266, now seen corresponding path program 1 times [2024-10-13 09:51:50,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:50,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014253500] [2024-10-13 09:51:50,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:50,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:50,765 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-10-13 09:51:50,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:50,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014253500] [2024-10-13 09:51:50,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014253500] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:50,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531341212] [2024-10-13 09:51:50,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:50,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:50,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:50,769 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:50,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 09:51:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:51,090 INFO L255 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 09:51:51,096 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:51,376 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 1 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:51,376 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:51:51,681 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 1 proven. 273 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:51:51,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531341212] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:51:51,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:51:51,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-10-13 09:51:51,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355530232] [2024-10-13 09:51:51,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:51:51,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-13 09:51:51,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:51,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-13 09:51:51,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-10-13 09:51:51,743 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 371 [2024-10-13 09:51:51,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 354 transitions, 770 flow. Second operand has 19 states, 19 states have (on average 342.5263157894737) internal successors, (6508), 19 states have internal predecessors, (6508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:51,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:51,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 371 [2024-10-13 09:51:51,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:52,745 INFO L124 PetriNetUnfolderBase]: 31/2384 cut-off events. [2024-10-13 09:51:52,745 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-10-13 09:51:52,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2695 conditions, 2384 events. 31/2384 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1981 event pairs, 18 based on Foata normal form. 13/2357 useless extension candidates. Maximal degree in co-relation 2295. Up to 51 conditions per place. [2024-10-13 09:51:52,750 INFO L140 encePairwiseOnDemand]: 360/371 looper letters, 47 selfloop transitions, 68 changer transitions 0/440 dead transitions. [2024-10-13 09:51:52,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 440 transitions, 1410 flow [2024-10-13 09:51:52,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-10-13 09:51:52,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2024-10-13 09:51:52,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 21548 transitions. [2024-10-13 09:51:52,771 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9219184529157575 [2024-10-13 09:51:52,772 INFO L175 Difference]: Start difference. First operand has 363 places, 354 transitions, 770 flow. Second operand 63 states and 21548 transitions. [2024-10-13 09:51:52,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 440 transitions, 1410 flow [2024-10-13 09:51:52,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 440 transitions, 1400 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:51:52,778 INFO L231 Difference]: Finished difference. Result has 436 places, 416 transitions, 1280 flow [2024-10-13 09:51:52,778 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=1280, PETRI_PLACES=436, PETRI_TRANSITIONS=416} [2024-10-13 09:51:52,779 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, 77 predicate places. [2024-10-13 09:51:52,779 INFO L471 AbstractCegarLoop]: Abstraction has has 436 places, 416 transitions, 1280 flow [2024-10-13 09:51:52,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 342.5263157894737) internal successors, (6508), 19 states have internal predecessors, (6508), 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 09:51:52,781 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:52,782 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:51:52,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-13 09:51:52,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:52,983 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:52,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:52,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1632036081, now seen corresponding path program 2 times [2024-10-13 09:51:52,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:52,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738336767] [2024-10-13 09:51:52,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:52,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:53,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:51:55,607 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-13 09:51:55,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:51:55,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738336767] [2024-10-13 09:51:55,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738336767] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:51:55,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270447545] [2024-10-13 09:51:55,608 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:51:55,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:55,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:51:55,609 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:51:55,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 09:51:56,128 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:51:56,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:51:56,131 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-13 09:51:56,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:51:56,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-13 09:51:56,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-13 09:51:56,224 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:51:56,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 09:51:56,261 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:51:56,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 09:51:56,289 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8249 trivial. 0 not checked. [2024-10-13 09:51:56,289 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:51:56,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270447545] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:51:56,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:51:56,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-13 09:51:56,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205849362] [2024-10-13 09:51:56,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:51:56,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:51:56,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:51:56,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:51:56,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-13 09:51:56,754 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 371 [2024-10-13 09:51:56,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 416 transitions, 1280 flow. Second operand has 6 states, 6 states have (on average 308.3333333333333) internal successors, (1850), 6 states have internal predecessors, (1850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:51:56,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:51:56,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 371 [2024-10-13 09:51:56,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:51:57,583 INFO L124 PetriNetUnfolderBase]: 77/2699 cut-off events. [2024-10-13 09:51:57,583 INFO L125 PetriNetUnfolderBase]: For 432/432 co-relation queries the response was YES. [2024-10-13 09:51:57,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3793 conditions, 2699 events. 77/2699 cut-off events. For 432/432 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4040 event pairs, 42 based on Foata normal form. 0/2617 useless extension candidates. Maximal degree in co-relation 1813. Up to 735 conditions per place. [2024-10-13 09:51:57,591 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 54 selfloop transitions, 5 changer transitions 0/415 dead transitions. [2024-10-13 09:51:57,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 415 transitions, 1396 flow [2024-10-13 09:51:57,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:51:57,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:51:57,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1866 transitions. [2024-10-13 09:51:57,594 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8382749326145552 [2024-10-13 09:51:57,594 INFO L175 Difference]: Start difference. First operand has 436 places, 416 transitions, 1280 flow. Second operand 6 states and 1866 transitions. [2024-10-13 09:51:57,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 415 transitions, 1396 flow [2024-10-13 09:51:57,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 415 transitions, 1320 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-10-13 09:51:57,603 INFO L231 Difference]: Finished difference. Result has 433 places, 415 transitions, 1212 flow [2024-10-13 09:51:57,603 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=1202, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1212, PETRI_PLACES=433, PETRI_TRANSITIONS=415} [2024-10-13 09:51:57,604 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, 74 predicate places. [2024-10-13 09:51:57,604 INFO L471 AbstractCegarLoop]: Abstraction has has 433 places, 415 transitions, 1212 flow [2024-10-13 09:51:57,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 308.3333333333333) internal successors, (1850), 6 states have internal predecessors, (1850), 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 09:51:57,604 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:51:57,605 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:51:57,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-13 09:51:57,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:51:57,806 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:51:57,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:51:57,807 INFO L85 PathProgramCache]: Analyzing trace with hash -199872005, now seen corresponding path program 1 times [2024-10-13 09:51:57,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:51:57,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777128303] [2024-10-13 09:51:57,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:51:57,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:51:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:52:00,052 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-13 09:52:00,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:52:00,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777128303] [2024-10-13 09:52:00,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777128303] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:52:00,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186781458] [2024-10-13 09:52:00,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:52:00,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:52:00,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:52:00,054 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:52:00,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 09:52:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:52:01,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 5523 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 09:52:01,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:52:01,609 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-13 09:52:01,610 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:52:02,245 INFO L134 CoverageAnalysis]: Checked inductivity of 8249 backedges. 4450 proven. 1897 refuted. 0 times theorem prover too weak. 1902 trivial. 0 not checked. [2024-10-13 09:52:02,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186781458] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:52:02,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:52:02,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-10-13 09:52:02,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507269757] [2024-10-13 09:52:02,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:52:02,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-13 09:52:02,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:52:02,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-13 09:52:02,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-10-13 09:52:02,284 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 371 [2024-10-13 09:52:02,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 415 transitions, 1212 flow. Second operand has 34 states, 34 states have (on average 348.1764705882353) internal successors, (11838), 34 states have internal predecessors, (11838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:52:02,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:52:02,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 371 [2024-10-13 09:52:02,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:52:04,421 INFO L124 PetriNetUnfolderBase]: 31/4543 cut-off events. [2024-10-13 09:52:04,421 INFO L125 PetriNetUnfolderBase]: For 3207/3207 co-relation queries the response was YES. [2024-10-13 09:52:04,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5354 conditions, 4543 events. 31/4543 cut-off events. For 3207/3207 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1979 event pairs, 18 based on Foata normal form. 24/4528 useless extension candidates. Maximal degree in co-relation 4938. Up to 78 conditions per place. [2024-10-13 09:52:04,428 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 47 selfloop transitions, 135 changer transitions 0/516 dead transitions. [2024-10-13 09:52:04,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 516 transitions, 2340 flow [2024-10-13 09:52:04,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-13 09:52:04,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-10-13 09:52:04,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 15650 transitions. [2024-10-13 09:52:04,445 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9374064091045223 [2024-10-13 09:52:04,446 INFO L175 Difference]: Start difference. First operand has 433 places, 415 transitions, 1212 flow. Second operand 45 states and 15650 transitions. [2024-10-13 09:52:04,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 516 transitions, 2340 flow [2024-10-13 09:52:04,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 516 transitions, 2330 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:52:04,460 INFO L231 Difference]: Finished difference. Result has 481 places, 490 transitions, 2076 flow [2024-10-13 09:52:04,461 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=1202, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=2076, PETRI_PLACES=481, PETRI_TRANSITIONS=490} [2024-10-13 09:52:04,461 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, 122 predicate places. [2024-10-13 09:52:04,461 INFO L471 AbstractCegarLoop]: Abstraction has has 481 places, 490 transitions, 2076 flow [2024-10-13 09:52:04,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 348.1764705882353) internal successors, (11838), 34 states have internal predecessors, (11838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:52:04,465 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:52:04,466 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:52:04,494 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 09:52:04,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-13 09:52:04,667 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:52:04,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:52:04,668 INFO L85 PathProgramCache]: Analyzing trace with hash -857406981, now seen corresponding path program 2 times [2024-10-13 09:52:04,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:52:04,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809203934] [2024-10-13 09:52:04,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:52:04,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:52:05,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:52:13,130 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-10-13 09:52:13,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:52:13,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809203934] [2024-10-13 09:52:13,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809203934] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:52:13,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36182794] [2024-10-13 09:52:13,130 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:52:13,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:52:13,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:52:13,132 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:52:13,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 09:52:14,145 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:52:14,145 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:52:14,152 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-13 09:52:14,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:52:14,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-13 09:52:14,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-13 09:52:14,271 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:52:14,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 09:52:14,309 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:52:14,310 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 09:52:14,347 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39241 trivial. 0 not checked. [2024-10-13 09:52:14,348 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:52:14,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36182794] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:52:14,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:52:14,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 37 [2024-10-13 09:52:14,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940588863] [2024-10-13 09:52:14,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:52:14,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:52:14,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:52:14,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:52:14,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1030, Unknown=0, NotChecked=0, Total=1332 [2024-10-13 09:52:14,812 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 371 [2024-10-13 09:52:14,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 490 transitions, 2076 flow. Second operand has 6 states, 6 states have (on average 309.5) internal successors, (1857), 6 states have internal predecessors, (1857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:52:14,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:52:14,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 371 [2024-10-13 09:52:14,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:52:18,194 INFO L124 PetriNetUnfolderBase]: 201/5444 cut-off events. [2024-10-13 09:52:18,194 INFO L125 PetriNetUnfolderBase]: For 1218/1218 co-relation queries the response was YES. [2024-10-13 09:52:18,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7894 conditions, 5444 events. 201/5444 cut-off events. For 1218/1218 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8982 event pairs, 54 based on Foata normal form. 0/5300 useless extension candidates. Maximal degree in co-relation 4118. Up to 1548 conditions per place. [2024-10-13 09:52:18,215 INFO L140 encePairwiseOnDemand]: 359/371 looper letters, 71 selfloop transitions, 23 changer transitions 0/525 dead transitions. [2024-10-13 09:52:18,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 486 places, 525 transitions, 2342 flow [2024-10-13 09:52:18,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:52:18,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:52:18,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1907 transitions. [2024-10-13 09:52:18,218 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8566936208445642 [2024-10-13 09:52:18,218 INFO L175 Difference]: Start difference. First operand has 481 places, 490 transitions, 2076 flow. Second operand 6 states and 1907 transitions. [2024-10-13 09:52:18,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 486 places, 525 transitions, 2342 flow [2024-10-13 09:52:18,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 525 transitions, 2234 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-10-13 09:52:18,237 INFO L231 Difference]: Finished difference. Result has 473 places, 512 transitions, 2126 flow [2024-10-13 09:52:18,237 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=1968, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=479, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2126, PETRI_PLACES=473, PETRI_TRANSITIONS=512} [2024-10-13 09:52:18,238 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, 114 predicate places. [2024-10-13 09:52:18,238 INFO L471 AbstractCegarLoop]: Abstraction has has 473 places, 512 transitions, 2126 flow [2024-10-13 09:52:18,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 309.5) internal successors, (1857), 6 states have internal predecessors, (1857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:52:18,238 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:52:18,239 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:52:18,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-13 09:52:18,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-13 09:52:18,441 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:52:18,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:52:18,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1900335364, now seen corresponding path program 1 times [2024-10-13 09:52:18,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:52:18,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607516286] [2024-10-13 09:52:18,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:52:18,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:52:19,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:52:26,599 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-10-13 09:52:26,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:52:26,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607516286] [2024-10-13 09:52:26,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607516286] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:52:26,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277802659] [2024-10-13 09:52:26,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:52:26,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:52:26,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:52:26,602 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:52:26,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 09:52:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:52:28,745 INFO L255 TraceCheckSpWp]: Trace formula consists of 11429 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-13 09:52:28,883 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:52:29,828 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-10-13 09:52:29,828 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:52:31,363 INFO L134 CoverageAnalysis]: Checked inductivity of 39241 backedges. 20306 proven. 9465 refuted. 0 times theorem prover too weak. 9470 trivial. 0 not checked. [2024-10-13 09:52:31,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277802659] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:52:31,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:52:31,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-10-13 09:52:31,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321416180] [2024-10-13 09:52:31,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:52:31,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-10-13 09:52:31,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:52:31,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-10-13 09:52:31,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-10-13 09:52:31,423 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 371 [2024-10-13 09:52:31,434 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 512 transitions, 2126 flow. Second operand has 63 states, 63 states have (on average 348.14285714285717) internal successors, (21933), 63 states have internal predecessors, (21933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:52:31,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:52:31,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 371 [2024-10-13 09:52:31,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:52:41,345 INFO L124 PetriNetUnfolderBase]: 187/9652 cut-off events. [2024-10-13 09:52:41,345 INFO L125 PetriNetUnfolderBase]: For 13429/13433 co-relation queries the response was YES. [2024-10-13 09:52:41,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11995 conditions, 9652 events. 187/9652 cut-off events. For 13429/13433 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 9690 event pairs, 55 based on Foata normal form. 45/9527 useless extension candidates. Maximal degree in co-relation 10654. Up to 168 conditions per place. [2024-10-13 09:52:41,371 INFO L140 encePairwiseOnDemand]: 365/371 looper letters, 92 selfloop transitions, 270 changer transitions 0/718 dead transitions. [2024-10-13 09:52:41,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 562 places, 718 transitions, 5036 flow [2024-10-13 09:52:41,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2024-10-13 09:52:41,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2024-10-13 09:52:41,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 31287 transitions. [2024-10-13 09:52:41,389 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9370170709793352 [2024-10-13 09:52:41,390 INFO L175 Difference]: Start difference. First operand has 473 places, 512 transitions, 2126 flow. Second operand 90 states and 31287 transitions. [2024-10-13 09:52:41,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 562 places, 718 transitions, 5036 flow [2024-10-13 09:52:41,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 562 places, 718 transitions, 5036 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:52:41,415 INFO L231 Difference]: Finished difference. Result has 578 places, 650 transitions, 4118 flow [2024-10-13 09:52:41,416 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=371, PETRI_DIFFERENCE_MINUEND_FLOW=2126, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=512, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=138, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=90, PETRI_FLOW=4118, PETRI_PLACES=578, PETRI_TRANSITIONS=650} [2024-10-13 09:52:41,416 INFO L277 CegarLoopForPetriNet]: 359 programPoint places, 219 predicate places. [2024-10-13 09:52:41,416 INFO L471 AbstractCegarLoop]: Abstraction has has 578 places, 650 transitions, 4118 flow [2024-10-13 09:52:41,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 348.14285714285717) internal successors, (21933), 63 states have internal predecessors, (21933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:52:41,422 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:52:41,424 INFO L204 CegarLoopForPetriNet]: trace histogram [60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:52:41,471 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-13 09:52:41,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:52:41,625 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-10-13 09:52:41,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:52:41,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1805437308, now seen corresponding path program 2 times [2024-10-13 09:52:41,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:52:41,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199804210] [2024-10-13 09:52:41,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:52:41,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:52:42,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:52:53,902 INFO L134 CoverageAnalysis]: Checked inductivity of 159451 backedges. 0 proven. 81091 refuted. 0 times theorem prover too weak. 78360 trivial. 0 not checked. [2024-10-13 09:52:53,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:52:53,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199804210] [2024-10-13 09:52:53,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199804210] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:52:53,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805578361] [2024-10-13 09:52:53,903 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:52:53,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:52:53,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:52:53,904 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:52:53,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-13 09:52:56,095 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:52:56,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:52:56,108 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-13 09:52:56,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:52:56,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-13 09:52:56,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-13 09:52:56,243 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:52:56,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 09:52:56,261 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:52:56,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 09:52:56,283 INFO L134 CoverageAnalysis]: Checked inductivity of 159451 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159451 trivial. 0 not checked. [2024-10-13 09:52:56,283 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:52:56,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805578361] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:52:56,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:52:56,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2024-10-13 09:52:56,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312329754] [2024-10-13 09:52:56,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:52:56,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:52:56,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:52:56,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:52:56,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-13 09:52:56,755 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 302 out of 371 [2024-10-13 09:52:56,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 578 places, 650 transitions, 4118 flow. Second operand has 6 states, 6 states have (on average 309.6666666666667) internal successors, (1858), 6 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 09:52:56,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:52:56,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 302 of 371 [2024-10-13 09:52:56,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand