./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 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/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-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:55:30,473 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:55:30,513 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:55:30,517 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:55:30,517 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:55:30,532 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:55:30,533 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:55:30,533 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:55:30,534 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:55:30,534 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:55:30,534 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:55:30,535 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:55:30,535 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:55:30,535 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:55:30,535 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:55:30,536 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:55:30,536 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:55:30,536 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:55:30,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:55:30,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:55:30,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:55:30,541 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:55:30,542 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:55:30,542 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:55:30,543 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:55:30,543 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:55:30,543 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:55:30,543 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:55:30,546 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:55:30,547 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:55:30,547 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:55:30,547 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:55:30,547 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:55:30,548 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:55:30,548 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:55:30,548 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:55:30,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:55:30,548 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:55:30,548 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:55:30,549 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:55:30,549 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:55:30,550 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7be9b237ca4111a24c77c67cce26f31a788af03984af96dee7353f79c789c2c1 [2024-10-13 09:55:30,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:55:30,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:55:30,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:55:30,788 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:55:30,788 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:55:30,789 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i [2024-10-13 09:55:32,287 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:55:32,581 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:55:32,582 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i [2024-10-13 09:55:32,610 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c764d982/e07f53c536f9415c8237f412ba2f6dbf/FLAG360e838cf [2024-10-13 09:55:32,638 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c764d982/e07f53c536f9415c8237f412ba2f6dbf [2024-10-13 09:55:32,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:55:32,645 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:55:32,646 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:55:32,649 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:55:32,654 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:55:32,659 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:55:32" (1/1) ... [2024-10-13 09:55:32,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@117cacb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:32, skipping insertion in model container [2024-10-13 09:55:32,668 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:55:32" (1/1) ... [2024-10-13 09:55:32,742 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:55:33,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:55:33,253 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:55:33,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:55:33,417 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:55:33,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:33 WrapperNode [2024-10-13 09:55:33,418 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:55:33,419 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:55:33,420 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:55:33,420 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:55:33,430 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:33" (1/1) ... [2024-10-13 09:55:33,449 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:33" (1/1) ... [2024-10-13 09:55:33,486 INFO L138 Inliner]: procedures = 279, calls = 69, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 379 [2024-10-13 09:55:33,486 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:55:33,487 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:55:33,487 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:55:33,487 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:55:33,495 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:33" (1/1) ... [2024-10-13 09:55:33,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:33" (1/1) ... [2024-10-13 09:55:33,502 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:33" (1/1) ... [2024-10-13 09:55:33,502 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:33" (1/1) ... [2024-10-13 09:55:33,518 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:33" (1/1) ... [2024-10-13 09:55:33,523 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:33" (1/1) ... [2024-10-13 09:55:33,530 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:33" (1/1) ... [2024-10-13 09:55:33,533 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:33" (1/1) ... [2024-10-13 09:55:33,541 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:55:33,542 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:55:33,542 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:55:33,542 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:55:33,543 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:33" (1/1) ... [2024-10-13 09:55:33,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:55:33,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:55:33,574 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 09:55:33,580 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 09:55:33,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 09:55:33,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-10-13 09:55:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-10-13 09:55:33,634 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-10-13 09:55:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 09:55:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 09:55:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-13 09:55:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-10-13 09:55:33,634 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-10-13 09:55:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-13 09:55:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 09:55:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 09:55:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:55:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-10-13 09:55:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 09:55:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:55:33,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:55:33,637 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 09:55:33,802 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:55:33,804 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:55:34,396 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:55:34,397 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:55:34,440 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:55:34,440 INFO L314 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-13 09:55:34,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:55:34 BoogieIcfgContainer [2024-10-13 09:55:34,445 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:55:34,446 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:55:34,446 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:55:34,454 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:55:34,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:55:32" (1/3) ... [2024-10-13 09:55:34,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3429c83d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:55:34, skipping insertion in model container [2024-10-13 09:55:34,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:33" (2/3) ... [2024-10-13 09:55:34,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3429c83d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:55:34, skipping insertion in model container [2024-10-13 09:55:34,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:55:34" (3/3) ... [2024-10-13 09:55:34,456 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_87-lists_racefree.i [2024-10-13 09:55:34,471 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:55:34,471 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2024-10-13 09:55:34,471 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:55:34,599 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-13 09:55:34,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 385 places, 408 transitions, 836 flow [2024-10-13 09:55:34,912 INFO L124 PetriNetUnfolderBase]: 59/748 cut-off events. [2024-10-13 09:55:34,913 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-13 09:55:34,936 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. [2024-10-13 09:55:34,937 INFO L82 GeneralOperation]: Start removeDead. Operand has 385 places, 408 transitions, 836 flow [2024-10-13 09:55:34,950 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 385 places, 408 transitions, 836 flow [2024-10-13 09:55:34,960 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:55:34,968 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;@525d5036, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:55:34,968 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2024-10-13 09:55:34,980 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:55:34,981 INFO L124 PetriNetUnfolderBase]: 4/76 cut-off events. [2024-10-13 09:55:34,984 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:55:34,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:55:34,985 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] [2024-10-13 09:55:34,985 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)] === [2024-10-13 09:55:34,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:55:34,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1814579736, now seen corresponding path program 1 times [2024-10-13 09:55:35,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:55:35,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61138263] [2024-10-13 09:55:35,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:55:35,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:55:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:55:35,328 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 09:55:35,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:55:35,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61138263] [2024-10-13 09:55:35,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61138263] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:55:35,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:55:35,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:55:35,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108358217] [2024-10-13 09:55:35,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:55:35,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:55:35,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:55:35,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:55:35,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:55:35,414 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 363 out of 408 [2024-10-13 09:55:35,422 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) [2024-10-13 09:55:35,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:55:35,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 363 of 408 [2024-10-13 09:55:35,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:55:35,799 INFO L124 PetriNetUnfolderBase]: 159/1764 cut-off events. [2024-10-13 09:55:35,800 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-10-13 09:55:35,812 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. [2024-10-13 09:55:35,821 INFO L140 encePairwiseOnDemand]: 385/408 looper letters, 23 selfloop transitions, 2 changer transitions 0/387 dead transitions. [2024-10-13 09:55:35,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 385 places, 387 transitions, 844 flow [2024-10-13 09:55:35,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:55:35,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:55:35,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1136 transitions. [2024-10-13 09:55:35,838 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9281045751633987 [2024-10-13 09:55:35,863 INFO L175 Difference]: Start difference. First operand has 385 places, 408 transitions, 836 flow. Second operand 3 states and 1136 transitions. [2024-10-13 09:55:35,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 385 places, 387 transitions, 844 flow [2024-10-13 09:55:35,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 387 transitions, 844 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:55:35,881 INFO L231 Difference]: Finished difference. Result has 386 places, 387 transitions, 804 flow [2024-10-13 09:55:35,886 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} [2024-10-13 09:55:35,890 INFO L277 CegarLoopForPetriNet]: 385 programPoint places, 1 predicate places. [2024-10-13 09:55:35,890 INFO L471 AbstractCegarLoop]: Abstraction has has 386 places, 387 transitions, 804 flow [2024-10-13 09:55:35,891 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) [2024-10-13 09:55:35,891 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:55:35,891 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] [2024-10-13 09:55:35,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:55:35,891 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)] === [2024-10-13 09:55:35,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:55:35,894 INFO L85 PathProgramCache]: Analyzing trace with hash -320203003, now seen corresponding path program 1 times [2024-10-13 09:55:35,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:55:35,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125386798] [2024-10-13 09:55:35,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:55:35,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:55:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:55:36,407 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 09:55:36,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:55:36,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125386798] [2024-10-13 09:55:36,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125386798] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:55:36,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:55:36,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:55:36,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771542109] [2024-10-13 09:55:36,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:55:36,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:55:36,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:55:36,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:55:36,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:55:36,717 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 408 [2024-10-13 09:55:36,719 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) [2024-10-13 09:55:36,719 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:55:36,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 408 [2024-10-13 09:55:36,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:55:48,765 INFO L124 PetriNetUnfolderBase]: 30268/80370 cut-off events. [2024-10-13 09:55:48,765 INFO L125 PetriNetUnfolderBase]: For 462/462 co-relation queries the response was YES. [2024-10-13 09:55:49,017 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. [2024-10-13 09:55:49,538 INFO L140 encePairwiseOnDemand]: 402/408 looper letters, 99 selfloop transitions, 5 changer transitions 0/386 dead transitions. [2024-10-13 09:55:49,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 390 places, 386 transitions, 1010 flow [2024-10-13 09:55:49,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:55:49,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:55:49,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1797 transitions. [2024-10-13 09:55:49,542 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7340686274509803 [2024-10-13 09:55:49,542 INFO L175 Difference]: Start difference. First operand has 386 places, 387 transitions, 804 flow. Second operand 6 states and 1797 transitions. [2024-10-13 09:55:49,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 390 places, 386 transitions, 1010 flow [2024-10-13 09:55:49,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 386 transitions, 1008 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:55:49,553 INFO L231 Difference]: Finished difference. Result has 389 places, 386 transitions, 810 flow [2024-10-13 09:55:49,554 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} [2024-10-13 09:55:49,554 INFO L277 CegarLoopForPetriNet]: 385 programPoint places, 4 predicate places. [2024-10-13 09:55:49,555 INFO L471 AbstractCegarLoop]: Abstraction has has 389 places, 386 transitions, 810 flow [2024-10-13 09:55:49,556 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) [2024-10-13 09:55:49,556 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:55:49,556 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] [2024-10-13 09:55:49,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 09:55:49,556 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)] === [2024-10-13 09:55:49,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:55:49,558 INFO L85 PathProgramCache]: Analyzing trace with hash 2042469316, now seen corresponding path program 1 times [2024-10-13 09:55:49,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:55:49,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069497231] [2024-10-13 09:55:49,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:55:49,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:55:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:55:49,888 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 09:55:49,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:55:49,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069497231] [2024-10-13 09:55:49,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069497231] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:55:49,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:55:49,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:55:49,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075264883] [2024-10-13 09:55:49,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:55:49,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:55:49,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:55:49,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:55:49,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:55:50,217 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 408 [2024-10-13 09:55:50,219 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) [2024-10-13 09:55:50,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:55:50,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 408 [2024-10-13 09:55:50,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:56:01,170 INFO L124 PetriNetUnfolderBase]: 30268/80368 cut-off events. [2024-10-13 09:56:01,171 INFO L125 PetriNetUnfolderBase]: For 461/461 co-relation queries the response was YES. [2024-10-13 09:56:01,401 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. [2024-10-13 09:56:01,638 INFO L140 encePairwiseOnDemand]: 402/408 looper letters, 99 selfloop transitions, 5 changer transitions 0/385 dead transitions. [2024-10-13 09:56:01,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 385 transitions, 1016 flow [2024-10-13 09:56:01,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:56:01,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:56:01,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1797 transitions. [2024-10-13 09:56:01,650 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7340686274509803 [2024-10-13 09:56:01,651 INFO L175 Difference]: Start difference. First operand has 389 places, 386 transitions, 810 flow. Second operand 6 states and 1797 transitions. [2024-10-13 09:56:01,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 385 transitions, 1016 flow [2024-10-13 09:56:01,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 385 transitions, 1006 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:56:01,658 INFO L231 Difference]: Finished difference. Result has 388 places, 385 transitions, 808 flow [2024-10-13 09:56:01,659 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} [2024-10-13 09:56:01,663 INFO L277 CegarLoopForPetriNet]: 385 programPoint places, 3 predicate places. [2024-10-13 09:56:01,663 INFO L471 AbstractCegarLoop]: Abstraction has has 388 places, 385 transitions, 808 flow [2024-10-13 09:56:01,664 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) [2024-10-13 09:56:01,665 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:56:01,665 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] [2024-10-13 09:56:01,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 09:56:01,665 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)] === [2024-10-13 09:56:01,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:56:01,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1075580683, now seen corresponding path program 1 times [2024-10-13 09:56:01,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:56:01,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163340557] [2024-10-13 09:56:01,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:56:01,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:56:01,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:56:01,961 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 09:56:01,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:56:01,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163340557] [2024-10-13 09:56:01,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163340557] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:56:01,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:56:01,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 09:56:01,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724403186] [2024-10-13 09:56:01,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:56:01,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:56:01,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:56:01,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:56:01,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-13 09:56:02,325 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 275 out of 408 [2024-10-13 09:56:02,327 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) [2024-10-13 09:56:02,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:56:02,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 275 of 408 [2024-10-13 09:56:02,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:56:13,182 INFO L124 PetriNetUnfolderBase]: 32723/86416 cut-off events. [2024-10-13 09:56:13,182 INFO L125 PetriNetUnfolderBase]: For 465/465 co-relation queries the response was YES. [2024-10-13 09:56:13,415 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. [2024-10-13 09:56:13,680 INFO L140 encePairwiseOnDemand]: 402/408 looper letters, 107 selfloop transitions, 5 changer transitions 0/384 dead transitions. [2024-10-13 09:56:13,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 384 transitions, 1030 flow [2024-10-13 09:56:13,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:56:13,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:56:13,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1762 transitions. [2024-10-13 09:56:13,684 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7197712418300654 [2024-10-13 09:56:13,684 INFO L175 Difference]: Start difference. First operand has 388 places, 385 transitions, 808 flow. Second operand 6 states and 1762 transitions. [2024-10-13 09:56:13,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 384 transitions, 1030 flow [2024-10-13 09:56:13,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 384 transitions, 1020 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-13 09:56:13,694 INFO L231 Difference]: Finished difference. Result has 387 places, 384 transitions, 806 flow [2024-10-13 09:56:13,695 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} [2024-10-13 09:56:13,695 INFO L277 CegarLoopForPetriNet]: 385 programPoint places, 2 predicate places. [2024-10-13 09:56:13,695 INFO L471 AbstractCegarLoop]: Abstraction has has 387 places, 384 transitions, 806 flow [2024-10-13 09:56:13,696 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) [2024-10-13 09:56:13,697 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:56:13,697 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] [2024-10-13 09:56:13,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 09:56:13,697 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)] === [2024-10-13 09:56:13,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:56:13,697 INFO L85 PathProgramCache]: Analyzing trace with hash -500903681, now seen corresponding path program 1 times [2024-10-13 09:56:13,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:56:13,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038093760] [2024-10-13 09:56:13,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:56:13,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:56:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:56:13,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:56:13,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:56:13,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038093760] [2024-10-13 09:56:13,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038093760] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:56:13,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914204123] [2024-10-13 09:56:13,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:56:13,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:56:13,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:56:13,802 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 09:56:13,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process