./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/28-race_reach_87-lists_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 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/28-race_reach_87-lists_racefree.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 7be9b237ca4111a24c77c67cce26f31a788af03984af96dee7353f79c789c2c1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:29:13,946 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:29:14,021 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:29:14,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:29:14,027 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:29:14,048 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:29:14,049 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:29:14,049 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:29:14,050 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:29:14,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:29:14,050 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:29:14,051 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:29:14,051 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:29:14,051 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:29:14,051 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:29:14,052 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:29:14,052 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:29:14,052 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:29:14,052 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:29:14,053 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:29:14,053 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:29:14,053 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:29:14,054 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:29:14,054 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:29:14,054 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:29:14,054 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:29:14,055 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:29:14,055 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:29:14,055 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:29:14,055 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:29:14,056 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:29:14,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:29:14,056 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:29:14,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:29:14,057 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:29:14,057 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:29:14,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:29:14,057 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:29:14,058 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:29:14,058 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:29:14,058 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:29:14,059 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7be9b237ca4111a24c77c67cce26f31a788af03984af96dee7353f79c789c2c1 [2024-10-24 15:29:14,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:29:14,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:29:14,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:29:14,270 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:29:14,271 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:29:14,272 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i [2024-10-24 15:29:15,581 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:29:15,804 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:29:15,804 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i [2024-10-24 15:29:15,820 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e37029d8/7a2388711cd34d36a3aa1fe91b05c8a3/FLAG6db015ed2 [2024-10-24 15:29:15,834 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e37029d8/7a2388711cd34d36a3aa1fe91b05c8a3 [2024-10-24 15:29:15,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:29:15,837 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:29:15,838 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:29:15,839 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:29:15,843 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:29:15,843 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:29:15" (1/1) ... [2024-10-24 15:29:15,844 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cdbce44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:15, skipping insertion in model container [2024-10-24 15:29:15,844 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:29:15" (1/1) ... [2024-10-24 15:29:15,891 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:29:16,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:29:16,408 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:29:16,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:29:16,500 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:29:16,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:16 WrapperNode [2024-10-24 15:29:16,501 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:29:16,502 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:29:16,502 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:29:16,502 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:29:16,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:16" (1/1) ... [2024-10-24 15:29:16,526 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:16" (1/1) ... [2024-10-24 15:29:16,563 INFO L138 Inliner]: procedures = 279, calls = 69, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 379 [2024-10-24 15:29:16,567 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:29:16,568 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:29:16,568 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:29:16,568 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:29:16,582 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:16" (1/1) ... [2024-10-24 15:29:16,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:16" (1/1) ... [2024-10-24 15:29:16,589 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:16" (1/1) ... [2024-10-24 15:29:16,589 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:16" (1/1) ... [2024-10-24 15:29:16,604 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:16" (1/1) ... [2024-10-24 15:29:16,613 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:16" (1/1) ... [2024-10-24 15:29:16,620 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:16" (1/1) ... [2024-10-24 15:29:16,622 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:16" (1/1) ... [2024-10-24 15:29:16,629 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:29:16,634 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:29:16,634 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:29:16,634 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:29:16,635 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:16" (1/1) ... [2024-10-24 15:29:16,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:29:16,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:29:16,678 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) [2024-10-24 15:29:16,680 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 [2024-10-24 15:29:16,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 15:29:16,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-24 15:29:16,717 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-10-24 15:29:16,718 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-10-24 15:29:16,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 15:29:16,718 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-24 15:29:16,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-24 15:29:16,718 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-10-24 15:29:16,718 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-10-24 15:29:16,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-24 15:29:16,718 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-24 15:29:16,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-24 15:29:16,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:29:16,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-24 15:29:16,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:29:16,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:29:16,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:29:16,721 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:29:16,866 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:29:16,867 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:29:17,375 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:29:17,376 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:29:17,446 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:29:17,446 INFO L314 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-24 15:29:17,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:29:17 BoogieIcfgContainer [2024-10-24 15:29:17,447 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:29:17,448 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:29:17,451 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:29:17,453 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:29:17,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:29:15" (1/3) ... [2024-10-24 15:29:17,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51dd55a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:29:17, skipping insertion in model container [2024-10-24 15:29:17,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:29:16" (2/3) ... [2024-10-24 15:29:17,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51dd55a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:29:17, skipping insertion in model container [2024-10-24 15:29:17,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:29:17" (3/3) ... [2024-10-24 15:29:17,456 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_87-lists_racefree.i [2024-10-24 15:29:17,469 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:29:17,469 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2024-10-24 15:29:17,469 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:29:17,577 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-24 15:29:17,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 385 places, 408 transitions, 836 flow [2024-10-24 15:29:17,835 INFO L124 PetriNetUnfolderBase]: 59/748 cut-off events. [2024-10-24 15:29:17,836 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-24 15:29:17,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 765 conditions, 748 events. 59/748 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3412 event pairs, 0 based on Foata normal form. 0/642 useless extension candidates. Maximal degree in co-relation 379. Up to 8 conditions per place. [2024-10-24 15:29:17,859 INFO L82 GeneralOperation]: Start removeDead. Operand has 385 places, 408 transitions, 836 flow [2024-10-24 15:29:17,870 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 385 places, 408 transitions, 836 flow [2024-10-24 15:29:17,880 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:29:17,887 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;@6f0a7c85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:29:17,888 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-10-24 15:29:17,897 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:29:17,897 INFO L124 PetriNetUnfolderBase]: 4/76 cut-off events. [2024-10-24 15:29:17,898 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:29:17,932 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:29:17,933 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:29:17,933 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-10-24 15:29:17,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:29:17,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1814579736, now seen corresponding path program 1 times [2024-10-24 15:29:17,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:29:17,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504832762] [2024-10-24 15:29:17,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:29:17,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:29:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:29:18,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:29:18,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:29:18,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504832762] [2024-10-24 15:29:18,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504832762] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:29:18,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:29:18,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 15:29:18,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394617511] [2024-10-24 15:29:18,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:29:18,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:29:18,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:29:18,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:29:18,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:29:18,357 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 363 out of 408 [2024-10-24 15:29:18,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 408 transitions, 836 flow. Second operand has 3 states, 3 states have (on average 364.3333333333333) internal successors, (1093), 3 states have internal predecessors, (1093), 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) [2024-10-24 15:29:18,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:29:18,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 363 of 408 [2024-10-24 15:29:18,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:29:18,789 INFO L124 PetriNetUnfolderBase]: 159/1764 cut-off events. [2024-10-24 15:29:18,789 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-10-24 15:29:18,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2073 conditions, 1764 events. 159/1764 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 11030 event pairs, 110 based on Foata normal form. 307/1899 useless extension candidates. Maximal degree in co-relation 1132. Up to 259 conditions per place. [2024-10-24 15:29:18,807 INFO L140 encePairwiseOnDemand]: 385/408 looper letters, 23 selfloop transitions, 2 changer transitions 0/387 dead transitions. [2024-10-24 15:29:18,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 387 transitions, 844 flow [2024-10-24 15:29:18,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 15:29:18,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 15:29:18,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1136 transitions. [2024-10-24 15:29:18,825 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9281045751633987 [2024-10-24 15:29:18,828 INFO L175 Difference]: Start difference. First operand has 385 places, 408 transitions, 836 flow. Second operand 3 states and 1136 transitions. [2024-10-24 15:29:18,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 387 transitions, 844 flow [2024-10-24 15:29:18,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 387 transitions, 844 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-24 15:29:18,843 INFO L231 Difference]: Finished difference. Result has 386 places, 387 transitions, 804 flow [2024-10-24 15:29:18,846 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=804, PETRI_PLACES=386, PETRI_TRANSITIONS=387} [2024-10-24 15:29:18,851 INFO L277 CegarLoopForPetriNet]: 385 programPoint places, 1 predicate places. [2024-10-24 15:29:18,851 INFO L471 AbstractCegarLoop]: Abstraction has has 386 places, 387 transitions, 804 flow [2024-10-24 15:29:18,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 364.3333333333333) internal successors, (1093), 3 states have internal predecessors, (1093), 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) [2024-10-24 15:29:18,852 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:29:18,852 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] [2024-10-24 15:29:18,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:29:18,853 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-10-24 15:29:18,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:29:18,854 INFO L85 PathProgramCache]: Analyzing trace with hash -320203003, now seen corresponding path program 1 times [2024-10-24 15:29:18,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:29:18,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743310875] [2024-10-24 15:29:18,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:29:18,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:29:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:29:19,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:29:19,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:29:19,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743310875] [2024-10-24 15:29:19,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743310875] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:29:19,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:29:19,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:29:19,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292735284] [2024-10-24 15:29:19,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:29:19,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:29:19,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:29:19,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:29:19,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:29:19,638 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 408 [2024-10-24 15:29:19,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 387 transitions, 804 flow. Second operand has 6 states, 6 states have (on average 283.3333333333333) internal successors, (1700), 6 states have internal predecessors, (1700), 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) [2024-10-24 15:29:19,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:29:19,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 408 [2024-10-24 15:29:19,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:29:30,854 INFO L124 PetriNetUnfolderBase]: 30268/80370 cut-off events. [2024-10-24 15:29:30,854 INFO L125 PetriNetUnfolderBase]: For 462/462 co-relation queries the response was YES. [2024-10-24 15:29:31,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126519 conditions, 80370 events. 30268/80370 cut-off events. For 462/462 co-relation queries the response was YES. Maximal size of possible extension queue 1206. Compared 956498 event pairs, 29198 based on Foata normal form. 0/74885 useless extension candidates. Maximal degree in co-relation 126428. Up to 45927 conditions per place. [2024-10-24 15:29:31,323 INFO L140 encePairwiseOnDemand]: 402/408 looper letters, 99 selfloop transitions, 5 changer transitions 0/386 dead transitions. [2024-10-24 15:29:31,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 386 transitions, 1010 flow [2024-10-24 15:29:31,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:29:31,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:29:31,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1797 transitions. [2024-10-24 15:29:31,326 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7340686274509803 [2024-10-24 15:29:31,326 INFO L175 Difference]: Start difference. First operand has 386 places, 387 transitions, 804 flow. Second operand 6 states and 1797 transitions. [2024-10-24 15:29:31,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 386 transitions, 1010 flow [2024-10-24 15:29:31,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 386 transitions, 1008 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 15:29:31,335 INFO L231 Difference]: Finished difference. Result has 389 places, 386 transitions, 810 flow [2024-10-24 15:29:31,335 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=800, PETRI_DIFFERENCE_MINUEND_PLACES=384, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=810, PETRI_PLACES=389, PETRI_TRANSITIONS=386} [2024-10-24 15:29:31,336 INFO L277 CegarLoopForPetriNet]: 385 programPoint places, 4 predicate places. [2024-10-24 15:29:31,336 INFO L471 AbstractCegarLoop]: Abstraction has has 389 places, 386 transitions, 810 flow [2024-10-24 15:29:31,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 283.3333333333333) internal successors, (1700), 6 states have internal predecessors, (1700), 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) [2024-10-24 15:29:31,337 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:29:31,338 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] [2024-10-24 15:29:31,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 15:29:31,338 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-10-24 15:29:31,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:29:31,340 INFO L85 PathProgramCache]: Analyzing trace with hash 2042469316, now seen corresponding path program 1 times [2024-10-24 15:29:31,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:29:31,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522243734] [2024-10-24 15:29:31,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:29:31,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:29:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:29:31,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:29:31,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:29:31,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522243734] [2024-10-24 15:29:31,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522243734] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:29:31,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:29:31,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:29:31,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786345331] [2024-10-24 15:29:31,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:29:31,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:29:31,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:29:31,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:29:31,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:29:31,951 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 408 [2024-10-24 15:29:31,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 386 transitions, 810 flow. Second operand has 6 states, 6 states have (on average 283.3333333333333) internal successors, (1700), 6 states have internal predecessors, (1700), 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) [2024-10-24 15:29:31,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:29:31,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 408 [2024-10-24 15:29:31,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:29:42,413 INFO L124 PetriNetUnfolderBase]: 30268/80368 cut-off events. [2024-10-24 15:29:42,413 INFO L125 PetriNetUnfolderBase]: For 461/461 co-relation queries the response was YES. [2024-10-24 15:29:42,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126526 conditions, 80368 events. 30268/80368 cut-off events. For 461/461 co-relation queries the response was YES. Maximal size of possible extension queue 1206. Compared 957230 event pairs, 29198 based on Foata normal form. 0/74885 useless extension candidates. Maximal degree in co-relation 126421. Up to 45927 conditions per place. [2024-10-24 15:29:42,885 INFO L140 encePairwiseOnDemand]: 402/408 looper letters, 99 selfloop transitions, 5 changer transitions 0/385 dead transitions. [2024-10-24 15:29:42,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 385 transitions, 1016 flow [2024-10-24 15:29:42,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:29:42,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:29:42,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1797 transitions. [2024-10-24 15:29:42,889 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7340686274509803 [2024-10-24 15:29:42,889 INFO L175 Difference]: Start difference. First operand has 389 places, 386 transitions, 810 flow. Second operand 6 states and 1797 transitions. [2024-10-24 15:29:42,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 385 transitions, 1016 flow [2024-10-24 15:29:42,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 385 transitions, 1006 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:29:42,896 INFO L231 Difference]: Finished difference. Result has 388 places, 385 transitions, 808 flow [2024-10-24 15:29:42,897 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=798, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=808, PETRI_PLACES=388, PETRI_TRANSITIONS=385} [2024-10-24 15:29:42,898 INFO L277 CegarLoopForPetriNet]: 385 programPoint places, 3 predicate places. [2024-10-24 15:29:42,898 INFO L471 AbstractCegarLoop]: Abstraction has has 388 places, 385 transitions, 808 flow [2024-10-24 15:29:42,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 283.3333333333333) internal successors, (1700), 6 states have internal predecessors, (1700), 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) [2024-10-24 15:29:42,899 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:29:42,899 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] [2024-10-24 15:29:42,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 15:29:42,900 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-10-24 15:29:42,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:29:42,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1075580683, now seen corresponding path program 1 times [2024-10-24 15:29:42,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:29:42,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520237051] [2024-10-24 15:29:42,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:29:42,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:29:42,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:29:43,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:29:43,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:29:43,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520237051] [2024-10-24 15:29:43,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520237051] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:29:43,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:29:43,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 15:29:43,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130976298] [2024-10-24 15:29:43,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:29:43,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 15:29:43,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:29:43,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 15:29:43,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 15:29:43,581 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 275 out of 408 [2024-10-24 15:29:43,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 385 transitions, 808 flow. Second operand has 6 states, 6 states have (on average 277.8333333333333) internal successors, (1667), 6 states have internal predecessors, (1667), 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) [2024-10-24 15:29:43,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:29:43,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 275 of 408 [2024-10-24 15:29:43,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:29:54,000 INFO L124 PetriNetUnfolderBase]: 32723/86416 cut-off events. [2024-10-24 15:29:54,000 INFO L125 PetriNetUnfolderBase]: For 465/465 co-relation queries the response was YES. [2024-10-24 15:29:54,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136225 conditions, 86416 events. 32723/86416 cut-off events. For 465/465 co-relation queries the response was YES. Maximal size of possible extension queue 1463. Compared 1058365 event pairs, 31518 based on Foata normal form. 0/80507 useless extension candidates. Maximal degree in co-relation 136112. Up to 49578 conditions per place. [2024-10-24 15:29:54,473 INFO L140 encePairwiseOnDemand]: 402/408 looper letters, 107 selfloop transitions, 5 changer transitions 0/384 dead transitions. [2024-10-24 15:29:54,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 384 transitions, 1030 flow [2024-10-24 15:29:54,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 15:29:54,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 15:29:54,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1762 transitions. [2024-10-24 15:29:54,478 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7197712418300654 [2024-10-24 15:29:54,478 INFO L175 Difference]: Start difference. First operand has 388 places, 385 transitions, 808 flow. Second operand 6 states and 1762 transitions. [2024-10-24 15:29:54,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 384 transitions, 1030 flow [2024-10-24 15:29:54,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 384 transitions, 1020 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:29:54,490 INFO L231 Difference]: Finished difference. Result has 387 places, 384 transitions, 806 flow [2024-10-24 15:29:54,491 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=379, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=806, PETRI_PLACES=387, PETRI_TRANSITIONS=384} [2024-10-24 15:29:54,492 INFO L277 CegarLoopForPetriNet]: 385 programPoint places, 2 predicate places. [2024-10-24 15:29:54,492 INFO L471 AbstractCegarLoop]: Abstraction has has 387 places, 384 transitions, 806 flow [2024-10-24 15:29:54,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 277.8333333333333) internal successors, (1667), 6 states have internal predecessors, (1667), 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) [2024-10-24 15:29:54,493 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:29:54,493 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] [2024-10-24 15:29:54,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 15:29:54,494 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-10-24 15:29:54,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:29:54,494 INFO L85 PathProgramCache]: Analyzing trace with hash -500903681, now seen corresponding path program 1 times [2024-10-24 15:29:54,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:29:54,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637695219] [2024-10-24 15:29:54,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:29:54,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:29:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:29:54,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:29:54,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:29:54,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637695219] [2024-10-24 15:29:54,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637695219] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:29:54,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115533132] [2024-10-24 15:29:54,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:29:54,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:29:54,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:29:54,607 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) [2024-10-24 15:29:54,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 15:29:54,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:29:54,720 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 15:29:54,725 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:29:54,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:29:54,812 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 15:29:54,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:29:54,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115533132] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 15:29:54,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 15:29:54,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-24 15:29:54,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352312642] [2024-10-24 15:29:54,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 15:29:54,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 15:29:54,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:29:54,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 15:29:54,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 15:29:54,956 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 360 out of 408 [2024-10-24 15:29:54,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 384 transitions, 806 flow. Second operand has 10 states, 10 states have (on average 361.8) internal successors, (3618), 10 states have internal predecessors, (3618), 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) [2024-10-24 15:29:54,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:29:54,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 360 of 408 [2024-10-24 15:29:54,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:29:55,254 INFO L124 PetriNetUnfolderBase]: 159/1798 cut-off events. [2024-10-24 15:29:55,254 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-10-24 15:29:55,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2140 conditions, 1798 events. 159/1798 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 10781 event pairs, 110 based on Foata normal form. 2/1634 useless extension candidates. Maximal degree in co-relation 1965. Up to 259 conditions per place. [2024-10-24 15:29:55,270 INFO L140 encePairwiseOnDemand]: 402/408 looper letters, 27 selfloop transitions, 9 changer transitions 0/392 dead transitions. [2024-10-24 15:29:55,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 395 places, 392 transitions, 896 flow [2024-10-24 15:29:55,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 15:29:55,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 15:29:55,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3278 transitions. [2024-10-24 15:29:55,276 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8927015250544662 [2024-10-24 15:29:55,276 INFO L175 Difference]: Start difference. First operand has 387 places, 384 transitions, 806 flow. Second operand 9 states and 3278 transitions. [2024-10-24 15:29:55,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 395 places, 392 transitions, 896 flow [2024-10-24 15:29:55,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 392 transitions, 886 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-24 15:29:55,282 INFO L231 Difference]: Finished difference. Result has 393 places, 390 transitions, 846 flow [2024-10-24 15:29:55,283 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=408, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=846, PETRI_PLACES=393, PETRI_TRANSITIONS=390} [2024-10-24 15:29:55,283 INFO L277 CegarLoopForPetriNet]: 385 programPoint places, 8 predicate places. [2024-10-24 15:29:55,283 INFO L471 AbstractCegarLoop]: Abstraction has has 393 places, 390 transitions, 846 flow [2024-10-24 15:29:55,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 361.8) internal successors, (3618), 10 states have internal predecessors, (3618), 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) [2024-10-24 15:29:55,285 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:29:55,285 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:29:55,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-24 15:29:55,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:29:55,487 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2024-10-24 15:29:55,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:29:55,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1821236077, now seen corresponding path program 2 times [2024-10-24 15:29:55,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:29:55,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926551031] [2024-10-24 15:29:55,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:29:55,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:29:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:29:55,728 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:29:55,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:29:55,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926551031] [2024-10-24 15:29:55,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926551031] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 15:29:55,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006927293] [2024-10-24 15:29:55,729 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 15:29:55,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 15:29:55,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:29:55,732 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) [2024-10-24 15:29:55,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 15:29:55,855 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-24 15:29:55,855 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 15:29:55,856 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-24 15:29:55,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 15:29:55,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-24 15:29:55,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-10-24 15:29:55,995 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:29:55,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2024-10-24 15:29:56,034 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 15:29:56,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2024-10-24 15:29:56,067 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-10-24 15:29:56,067 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 15:29:56,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006927293] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:29:56,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 15:29:56,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-24 15:29:56,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728447797] [2024-10-24 15:29:56,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:29:56,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 15:29:56,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:29:56,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 15:29:56,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-24 15:29:56,452 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 408 [2024-10-24 15:29:56,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 390 transitions, 846 flow. Second operand has 8 states, 8 states have (on average 276.625) internal successors, (2213), 8 states have internal predecessors, (2213), 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) [2024-10-24 15:29:56,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:29:56,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 408 [2024-10-24 15:29:56,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand