./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_77-tricky_address4_racing.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_77-tricky_address4_racing.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 dce9d71ca8bbe247a74e6b2653e5cdb882c6b8b5d902edf534df70d90ee806fe --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 09:55:09,527 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 09:55:09,618 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-13 09:55:09,622 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 09:55:09,623 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 09:55:09,642 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 09:55:09,643 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 09:55:09,644 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 09:55:09,644 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 09:55:09,645 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 09:55:09,645 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 09:55:09,645 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 09:55:09,646 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 09:55:09,646 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 09:55:09,647 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 09:55:09,647 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 09:55:09,647 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 09:55:09,648 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 09:55:09,648 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 09:55:09,649 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 09:55:09,649 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 09:55:09,650 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 09:55:09,650 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-13 09:55:09,650 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 09:55:09,651 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 09:55:09,651 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 09:55:09,652 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 09:55:09,652 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 09:55:09,652 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 09:55:09,653 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 09:55:09,653 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 09:55:09,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:55:09,654 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 09:55:09,654 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 09:55:09,655 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 09:55:09,655 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 09:55:09,655 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 09:55:09,656 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 09:55:09,656 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 09:55:09,656 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 09:55:09,657 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 09:55:09,657 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dce9d71ca8bbe247a74e6b2653e5cdb882c6b8b5d902edf534df70d90ee806fe [2024-10-13 09:55:09,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 09:55:09,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 09:55:09,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 09:55:09,952 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 09:55:09,953 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 09:55:09,954 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i [2024-10-13 09:55:11,462 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 09:55:11,715 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 09:55:11,716 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_77-tricky_address4_racing.i [2024-10-13 09:55:11,744 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98611c8d9/7d6e2407f0934c62a35da4f8bf292029/FLAG833732035 [2024-10-13 09:55:11,758 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98611c8d9/7d6e2407f0934c62a35da4f8bf292029 [2024-10-13 09:55:11,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 09:55:11,761 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 09:55:11,763 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 09:55:11,763 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 09:55:11,767 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 09:55:11,767 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:55:11" (1/1) ... [2024-10-13 09:55:11,768 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f3388cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:11, skipping insertion in model container [2024-10-13 09:55:11,768 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:55:11" (1/1) ... [2024-10-13 09:55:11,813 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 09:55:12,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:55:12,337 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 09:55:12,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 09:55:12,480 INFO L204 MainTranslator]: Completed translation [2024-10-13 09:55:12,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:12 WrapperNode [2024-10-13 09:55:12,481 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 09:55:12,482 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 09:55:12,482 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 09:55:12,482 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 09:55:12,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:12" (1/1) ... [2024-10-13 09:55:12,518 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:12" (1/1) ... [2024-10-13 09:55:12,564 INFO L138 Inliner]: procedures = 271, calls = 50, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 289 [2024-10-13 09:55:12,564 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 09:55:12,565 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 09:55:12,565 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 09:55:12,565 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 09:55:12,575 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:12" (1/1) ... [2024-10-13 09:55:12,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:12" (1/1) ... [2024-10-13 09:55:12,581 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:12" (1/1) ... [2024-10-13 09:55:12,582 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:12" (1/1) ... [2024-10-13 09:55:12,597 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:12" (1/1) ... [2024-10-13 09:55:12,604 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:12" (1/1) ... [2024-10-13 09:55:12,607 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:12" (1/1) ... [2024-10-13 09:55:12,608 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:12" (1/1) ... [2024-10-13 09:55:12,621 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 09:55:12,626 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 09:55:12,627 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 09:55:12,627 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 09:55:12,628 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:12" (1/1) ... [2024-10-13 09:55:12,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 09:55:12,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:55:12,663 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 09:55:12,666 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 09:55:12,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 09:55:12,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 09:55:12,715 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-13 09:55:12,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-13 09:55:12,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-13 09:55:12,715 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-13 09:55:12,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 09:55:12,717 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-13 09:55:12,717 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-13 09:55:12,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-13 09:55:12,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 09:55:12,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 09:55:12,719 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 09:55:12,889 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 09:55:12,893 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 09:55:13,533 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 09:55:13,534 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 09:55:13,596 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 09:55:13,597 INFO L314 CfgBuilder]: Removed 23 assume(true) statements. [2024-10-13 09:55:13,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:55:13 BoogieIcfgContainer [2024-10-13 09:55:13,598 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 09:55:13,601 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 09:55:13,601 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 09:55:13,605 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 09:55:13,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:55:11" (1/3) ... [2024-10-13 09:55:13,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0793ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:55:13, skipping insertion in model container [2024-10-13 09:55:13,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:55:12" (2/3) ... [2024-10-13 09:55:13,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0793ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:55:13, skipping insertion in model container [2024-10-13 09:55:13,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:55:13" (3/3) ... [2024-10-13 09:55:13,610 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_77-tricky_address4_racing.i [2024-10-13 09:55:13,626 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 09:55:13,626 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-10-13 09:55:13,627 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 09:55:13,726 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-13 09:55:13,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 265 places, 295 transitions, 597 flow [2024-10-13 09:55:13,921 INFO L124 PetriNetUnfolderBase]: 48/424 cut-off events. [2024-10-13 09:55:13,921 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-13 09:55:13,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 429 conditions, 424 events. 48/424 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1671 event pairs, 0 based on Foata normal form. 0/354 useless extension candidates. Maximal degree in co-relation 248. Up to 8 conditions per place. [2024-10-13 09:55:13,932 INFO L82 GeneralOperation]: Start removeDead. Operand has 265 places, 295 transitions, 597 flow [2024-10-13 09:55:13,940 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 265 places, 295 transitions, 597 flow [2024-10-13 09:55:13,950 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:55:13,957 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;@1d901673, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:55:13,957 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-10-13 09:55:13,968 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:55:13,969 INFO L124 PetriNetUnfolderBase]: 8/74 cut-off events. [2024-10-13 09:55:13,969 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:55:13,969 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:55:13,970 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 09:55:13,970 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-13 09:55:13,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:55:13,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1287411917, now seen corresponding path program 1 times [2024-10-13 09:55:13,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:55:13,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657871290] [2024-10-13 09:55:13,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:55:13,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:55:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:55:14,343 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 09:55:14,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:55:14,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657871290] [2024-10-13 09:55:14,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657871290] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:55:14,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:55:14,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:55:14,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783709577] [2024-10-13 09:55:14,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:55:14,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:55:14,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:55:14,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:55:14,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:55:14,437 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 295 [2024-10-13 09:55:14,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 295 transitions, 597 flow. Second operand has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 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 09:55:14,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:55:14,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 295 [2024-10-13 09:55:14,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:55:14,725 INFO L124 PetriNetUnfolderBase]: 85/1251 cut-off events. [2024-10-13 09:55:14,725 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-13 09:55:14,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1435 conditions, 1251 events. 85/1251 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8287 event pairs, 72 based on Foata normal form. 205/1340 useless extension candidates. Maximal degree in co-relation 1250. Up to 178 conditions per place. [2024-10-13 09:55:14,740 INFO L140 encePairwiseOnDemand]: 263/295 looper letters, 23 selfloop transitions, 2 changer transitions 1/263 dead transitions. [2024-10-13 09:55:14,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 263 transitions, 583 flow [2024-10-13 09:55:14,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:55:14,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:55:14,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 776 transitions. [2024-10-13 09:55:14,760 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8768361581920904 [2024-10-13 09:55:14,765 INFO L175 Difference]: Start difference. First operand has 265 places, 295 transitions, 597 flow. Second operand 3 states and 776 transitions. [2024-10-13 09:55:14,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 263 transitions, 583 flow [2024-10-13 09:55:14,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 263 transitions, 583 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:55:14,778 INFO L231 Difference]: Finished difference. Result has 264 places, 262 transitions, 541 flow [2024-10-13 09:55:14,781 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=541, PETRI_PLACES=264, PETRI_TRANSITIONS=262} [2024-10-13 09:55:14,786 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, -1 predicate places. [2024-10-13 09:55:14,786 INFO L471 AbstractCegarLoop]: Abstraction has has 264 places, 262 transitions, 541 flow [2024-10-13 09:55:14,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 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 09:55:14,787 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:55:14,788 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] [2024-10-13 09:55:14,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 09:55:14,789 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-13 09:55:14,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:55:14,790 INFO L85 PathProgramCache]: Analyzing trace with hash -330683134, now seen corresponding path program 1 times [2024-10-13 09:55:14,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:55:14,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069420435] [2024-10-13 09:55:14,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:55:14,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:55:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:55:15,013 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 09:55:15,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:55:15,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069420435] [2024-10-13 09:55:15,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069420435] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:55:15,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539240054] [2024-10-13 09:55:15,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:55:15,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:55:15,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:55:15,017 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 09:55:15,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 09:55:15,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:55:15,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 09:55:15,125 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:55:15,205 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 09:55:15,206 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:55:15,256 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 09:55:15,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539240054] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:55:15,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:55:15,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-13 09:55:15,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349968234] [2024-10-13 09:55:15,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:55:15,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:55:15,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:55:15,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:55:15,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-13 09:55:15,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 295 [2024-10-13 09:55:15,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 262 transitions, 541 flow. Second operand has 10 states, 10 states have (on average 238.8) internal successors, (2388), 10 states have internal predecessors, (2388), 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 09:55:15,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:55:15,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 295 [2024-10-13 09:55:15,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:55:15,640 INFO L124 PetriNetUnfolderBase]: 85/1257 cut-off events. [2024-10-13 09:55:15,641 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-10-13 09:55:15,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1460 conditions, 1257 events. 85/1257 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8330 event pairs, 72 based on Foata normal form. 2/1144 useless extension candidates. Maximal degree in co-relation 1424. Up to 178 conditions per place. [2024-10-13 09:55:15,650 INFO L140 encePairwiseOnDemand]: 289/295 looper letters, 27 selfloop transitions, 9 changer transitions 0/270 dead transitions. [2024-10-13 09:55:15,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 270 transitions, 631 flow [2024-10-13 09:55:15,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 09:55:15,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 09:55:15,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2171 transitions. [2024-10-13 09:55:15,656 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8177024482109227 [2024-10-13 09:55:15,656 INFO L175 Difference]: Start difference. First operand has 264 places, 262 transitions, 541 flow. Second operand 9 states and 2171 transitions. [2024-10-13 09:55:15,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 270 transitions, 631 flow [2024-10-13 09:55:15,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 270 transitions, 629 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:55:15,664 INFO L231 Difference]: Finished difference. Result has 273 places, 268 transitions, 589 flow [2024-10-13 09:55:15,665 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=539, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=589, PETRI_PLACES=273, PETRI_TRANSITIONS=268} [2024-10-13 09:55:15,666 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, 8 predicate places. [2024-10-13 09:55:15,666 INFO L471 AbstractCegarLoop]: Abstraction has has 273 places, 268 transitions, 589 flow [2024-10-13 09:55:15,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 238.8) internal successors, (2388), 10 states have internal predecessors, (2388), 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 09:55:15,668 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:55:15,669 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:55:15,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-13 09:55:15,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:55:15,874 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-13 09:55:15,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:55:15,875 INFO L85 PathProgramCache]: Analyzing trace with hash 471515042, now seen corresponding path program 2 times [2024-10-13 09:55:15,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:55:15,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989958926] [2024-10-13 09:55:15,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:55:15,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:55:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:55:16,101 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:55:16,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:55:16,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989958926] [2024-10-13 09:55:16,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989958926] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:55:16,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507383118] [2024-10-13 09:55:16,103 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:55:16,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:55:16,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:55:16,105 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:55:16,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 09:55:16,198 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:55:16,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:55:16,200 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-13 09:55:16,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:55:16,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-13 09:55:16,332 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 [2024-10-13 09:55:16,383 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:55:16,384 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 [2024-10-13 09:55:16,445 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:55:16,446 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 [2024-10-13 09:55:16,495 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-13 09:55:16,497 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:55:16,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507383118] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:55:16,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:55:16,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-13 09:55:16,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277167969] [2024-10-13 09:55:16,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:55:16,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 09:55:16,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:55:16,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 09:55:16,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-13 09:55:16,894 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 295 [2024-10-13 09:55:16,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 268 transitions, 589 flow. Second operand has 8 states, 8 states have (on average 188.125) internal successors, (1505), 8 states have internal predecessors, (1505), 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 09:55:16,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:55:16,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 295 [2024-10-13 09:55:16,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:55:17,676 INFO L124 PetriNetUnfolderBase]: 1305/4921 cut-off events. [2024-10-13 09:55:17,677 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-13 09:55:17,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7545 conditions, 4921 events. 1305/4921 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 43609 event pairs, 1025 based on Foata normal form. 1/4478 useless extension candidates. Maximal degree in co-relation 7480. Up to 2436 conditions per place. [2024-10-13 09:55:17,705 INFO L140 encePairwiseOnDemand]: 283/295 looper letters, 127 selfloop transitions, 11 changer transitions 2/331 dead transitions. [2024-10-13 09:55:17,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 331 transitions, 995 flow [2024-10-13 09:55:17,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 09:55:17,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 09:55:17,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1638 transitions. [2024-10-13 09:55:17,710 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6940677966101695 [2024-10-13 09:55:17,710 INFO L175 Difference]: Start difference. First operand has 273 places, 268 transitions, 589 flow. Second operand 8 states and 1638 transitions. [2024-10-13 09:55:17,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 331 transitions, 995 flow [2024-10-13 09:55:17,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 331 transitions, 989 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-13 09:55:17,719 INFO L231 Difference]: Finished difference. Result has 284 places, 275 transitions, 650 flow [2024-10-13 09:55:17,720 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=650, PETRI_PLACES=284, PETRI_TRANSITIONS=275} [2024-10-13 09:55:17,720 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, 19 predicate places. [2024-10-13 09:55:17,721 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 275 transitions, 650 flow [2024-10-13 09:55:17,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 188.125) internal successors, (1505), 8 states have internal predecessors, (1505), 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 09:55:17,723 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:55:17,723 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:55:17,740 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 09:55:17,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-13 09:55:17,924 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-13 09:55:17,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:55:17,924 INFO L85 PathProgramCache]: Analyzing trace with hash 802124064, now seen corresponding path program 1 times [2024-10-13 09:55:17,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:55:17,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633549966] [2024-10-13 09:55:17,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:55:18,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:55:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:55:18,258 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-13 09:55:18,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:55:18,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633549966] [2024-10-13 09:55:18,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633549966] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:55:18,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950496456] [2024-10-13 09:55:18,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:55:18,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:55:18,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:55:18,261 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:55:18,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 09:55:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:55:18,357 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 09:55:18,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:55:18,415 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-13 09:55:18,415 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:55:18,517 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-13 09:55:18,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950496456] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:55:18,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:55:18,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-13 09:55:18,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045428773] [2024-10-13 09:55:18,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:55:18,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-13 09:55:18,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:55:18,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-13 09:55:18,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-13 09:55:18,559 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 295 [2024-10-13 09:55:18,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 275 transitions, 650 flow. Second operand has 18 states, 18 states have (on average 238.94444444444446) internal successors, (4301), 18 states have internal predecessors, (4301), 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 09:55:18,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:55:18,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 295 [2024-10-13 09:55:18,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:55:19,020 INFO L124 PetriNetUnfolderBase]: 88/1266 cut-off events. [2024-10-13 09:55:19,021 INFO L125 PetriNetUnfolderBase]: For 30/34 co-relation queries the response was YES. [2024-10-13 09:55:19,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1572 conditions, 1266 events. 88/1266 cut-off events. For 30/34 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8500 event pairs, 74 based on Foata normal form. 4/1158 useless extension candidates. Maximal degree in co-relation 1430. Up to 175 conditions per place. [2024-10-13 09:55:19,031 INFO L140 encePairwiseOnDemand]: 289/295 looper letters, 31 selfloop transitions, 21 changer transitions 0/293 dead transitions. [2024-10-13 09:55:19,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 293 transitions, 842 flow [2024-10-13 09:55:19,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-13 09:55:19,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-13 09:55:19,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5033 transitions. [2024-10-13 09:55:19,043 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8124293785310734 [2024-10-13 09:55:19,043 INFO L175 Difference]: Start difference. First operand has 284 places, 275 transitions, 650 flow. Second operand 21 states and 5033 transitions. [2024-10-13 09:55:19,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 293 transitions, 842 flow [2024-10-13 09:55:19,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 293 transitions, 835 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 09:55:19,051 INFO L231 Difference]: Finished difference. Result has 307 places, 288 transitions, 773 flow [2024-10-13 09:55:19,052 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=275, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=773, PETRI_PLACES=307, PETRI_TRANSITIONS=288} [2024-10-13 09:55:19,053 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, 42 predicate places. [2024-10-13 09:55:19,053 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 288 transitions, 773 flow [2024-10-13 09:55:19,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 238.94444444444446) internal successors, (4301), 18 states have internal predecessors, (4301), 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 09:55:19,056 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:55:19,056 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:55:19,075 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 09:55:19,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:55:19,258 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-13 09:55:19,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:55:19,258 INFO L85 PathProgramCache]: Analyzing trace with hash 979242592, now seen corresponding path program 2 times [2024-10-13 09:55:19,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:55:19,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4538163] [2024-10-13 09:55:19,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:55:19,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:55:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:55:19,613 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-13 09:55:19,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:55:19,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4538163] [2024-10-13 09:55:19,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4538163] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:55:19,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400372412] [2024-10-13 09:55:19,615 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:55:19,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:55:19,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:55:19,621 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:55:19,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 09:55:19,716 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:55:19,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:55:19,718 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-13 09:55:19,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:55:19,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-13 09:55:19,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-13 09:55:19,787 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:55:19,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 09:55:19,830 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:55:19,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 09:55:19,864 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-13 09:55:19,865 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:55:19,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400372412] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:55:19,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:55:19,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-13 09:55:19,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598296791] [2024-10-13 09:55:19,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:55:19,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:55:19,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:55:19,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:55:19,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-13 09:55:20,147 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 295 [2024-10-13 09:55:20,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 288 transitions, 773 flow. Second operand has 6 states, 6 states have (on average 190.66666666666666) internal successors, (1144), 6 states have internal predecessors, (1144), 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 09:55:20,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:55:20,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 295 [2024-10-13 09:55:20,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:55:21,125 INFO L124 PetriNetUnfolderBase]: 1363/5180 cut-off events. [2024-10-13 09:55:21,125 INFO L125 PetriNetUnfolderBase]: For 284/284 co-relation queries the response was YES. [2024-10-13 09:55:21,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8363 conditions, 5180 events. 1363/5180 cut-off events. For 284/284 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 46223 event pairs, 1033 based on Foata normal form. 29/4764 useless extension candidates. Maximal degree in co-relation 8214. Up to 2519 conditions per place. [2024-10-13 09:55:21,155 INFO L140 encePairwiseOnDemand]: 268/295 looper letters, 107 selfloop transitions, 92 changer transitions 0/404 dead transitions. [2024-10-13 09:55:21,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 404 transitions, 1425 flow [2024-10-13 09:55:21,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 09:55:21,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 09:55:21,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1322 transitions. [2024-10-13 09:55:21,159 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7468926553672316 [2024-10-13 09:55:21,159 INFO L175 Difference]: Start difference. First operand has 307 places, 288 transitions, 773 flow. Second operand 6 states and 1322 transitions. [2024-10-13 09:55:21,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 404 transitions, 1425 flow [2024-10-13 09:55:21,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 404 transitions, 1401 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-13 09:55:21,168 INFO L231 Difference]: Finished difference. Result has 311 places, 372 transitions, 1357 flow [2024-10-13 09:55:21,169 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=749, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1357, PETRI_PLACES=311, PETRI_TRANSITIONS=372} [2024-10-13 09:55:21,170 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, 46 predicate places. [2024-10-13 09:55:21,170 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 372 transitions, 1357 flow [2024-10-13 09:55:21,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 190.66666666666666) internal successors, (1144), 6 states have internal predecessors, (1144), 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 09:55:21,171 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:55:21,171 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:55:21,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 09:55:21,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:55:21,373 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-13 09:55:21,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:55:21,373 INFO L85 PathProgramCache]: Analyzing trace with hash 291750212, now seen corresponding path program 1 times [2024-10-13 09:55:21,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:55:21,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272314968] [2024-10-13 09:55:21,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:55:21,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:55:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:55:21,807 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-13 09:55:21,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:55:21,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272314968] [2024-10-13 09:55:21,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272314968] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:55:21,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525220951] [2024-10-13 09:55:21,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:55:21,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:55:21,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:55:21,810 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:55:21,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 09:55:21,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:55:21,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-13 09:55:21,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:55:22,014 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-13 09:55:22,014 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:55:22,233 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-13 09:55:22,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525220951] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:55:22,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:55:22,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-10-13 09:55:22,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987962715] [2024-10-13 09:55:22,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:55:22,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-13 09:55:22,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:55:22,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-13 09:55:22,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-10-13 09:55:22,268 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 295 [2024-10-13 09:55:22,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 372 transitions, 1357 flow. Second operand has 23 states, 23 states have (on average 239.04347826086956) internal successors, (5498), 23 states have internal predecessors, (5498), 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 09:55:22,275 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:55:22,275 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 295 [2024-10-13 09:55:22,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:55:22,942 INFO L124 PetriNetUnfolderBase]: 258/1933 cut-off events. [2024-10-13 09:55:22,943 INFO L125 PetriNetUnfolderBase]: For 480/536 co-relation queries the response was YES. [2024-10-13 09:55:22,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3140 conditions, 1933 events. 258/1933 cut-off events. For 480/536 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 14519 event pairs, 72 based on Foata normal form. 3/1794 useless extension candidates. Maximal degree in co-relation 2911. Up to 232 conditions per place. [2024-10-13 09:55:22,957 INFO L140 encePairwiseOnDemand]: 289/295 looper letters, 34 selfloop transitions, 30 changer transitions 0/389 dead transitions. [2024-10-13 09:55:22,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 389 transitions, 1607 flow [2024-10-13 09:55:22,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-13 09:55:22,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-10-13 09:55:22,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7177 transitions. [2024-10-13 09:55:22,973 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8109604519774011 [2024-10-13 09:55:22,973 INFO L175 Difference]: Start difference. First operand has 311 places, 372 transitions, 1357 flow. Second operand 30 states and 7177 transitions. [2024-10-13 09:55:22,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 389 transitions, 1607 flow [2024-10-13 09:55:22,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 389 transitions, 1589 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-10-13 09:55:22,987 INFO L231 Difference]: Finished difference. Result has 344 places, 382 transitions, 1491 flow [2024-10-13 09:55:22,987 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=1339, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1491, PETRI_PLACES=344, PETRI_TRANSITIONS=382} [2024-10-13 09:55:22,989 INFO L277 CegarLoopForPetriNet]: 265 programPoint places, 79 predicate places. [2024-10-13 09:55:22,989 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 382 transitions, 1491 flow [2024-10-13 09:55:22,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 239.04347826086956) internal successors, (5498), 23 states have internal predecessors, (5498), 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 09:55:22,992 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:55:22,992 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:55:23,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-13 09:55:23,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:55:23,197 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-10-13 09:55:23,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:55:23,197 INFO L85 PathProgramCache]: Analyzing trace with hash -896090125, now seen corresponding path program 2 times [2024-10-13 09:55:23,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:55:23,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689555778] [2024-10-13 09:55:23,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:55:23,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:55:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:55:23,254 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 09:55:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 09:55:23,318 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 09:55:23,318 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-13 09:55:23,319 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-10-13 09:55:23,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-10-13 09:55:23,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-10-13 09:55:23,322 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-10-13 09:55:23,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-10-13 09:55:23,323 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-10-13 09:55:23,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-10-13 09:55:23,324 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-10-13 09:55:23,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-10-13 09:55:23,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-10-13 09:55:23,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-10-13 09:55:23,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-10-13 09:55:23,325 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-10-13 09:55:23,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-10-13 09:55:23,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-10-13 09:55:23,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-10-13 09:55:23,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-10-13 09:55:23,326 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-10-13 09:55:23,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 09:55:23,328 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1] [2024-10-13 09:55:23,332 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-13 09:55:23,332 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-13 09:55:23,384 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-13 09:55:23,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 370 places, 413 transitions, 842 flow [2024-10-13 09:55:23,517 INFO L124 PetriNetUnfolderBase]: 80/699 cut-off events. [2024-10-13 09:55:23,517 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-10-13 09:55:23,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 711 conditions, 699 events. 80/699 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3358 event pairs, 0 based on Foata normal form. 0/583 useless extension candidates. Maximal degree in co-relation 426. Up to 12 conditions per place. [2024-10-13 09:55:23,524 INFO L82 GeneralOperation]: Start removeDead. Operand has 370 places, 413 transitions, 842 flow [2024-10-13 09:55:23,535 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 370 places, 413 transitions, 842 flow [2024-10-13 09:55:23,538 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 09:55:23,539 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;@1d901673, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 09:55:23,540 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-10-13 09:55:23,546 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 09:55:23,546 INFO L124 PetriNetUnfolderBase]: 8/74 cut-off events. [2024-10-13 09:55:23,546 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 09:55:23,547 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:55:23,547 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 09:55:23,547 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-13 09:55:23,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:55:23,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1929003184, now seen corresponding path program 1 times [2024-10-13 09:55:23,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:55:23,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14038163] [2024-10-13 09:55:23,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:55:23,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:55:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:55:23,586 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 09:55:23,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:55:23,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14038163] [2024-10-13 09:55:23,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14038163] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:55:23,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 09:55:23,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 09:55:23,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387728236] [2024-10-13 09:55:23,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:55:23,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 09:55:23,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:55:23,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 09:55:23,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 09:55:23,605 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 413 [2024-10-13 09:55:23,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 413 transitions, 842 flow. Second operand has 3 states, 3 states have (on average 335.3333333333333) internal successors, (1006), 3 states have internal predecessors, (1006), 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 09:55:23,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:55:23,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 413 [2024-10-13 09:55:23,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:55:25,409 INFO L124 PetriNetUnfolderBase]: 1580/11854 cut-off events. [2024-10-13 09:55:25,409 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-10-13 09:55:25,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14315 conditions, 11854 events. 1580/11854 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 142667 event pairs, 1464 based on Foata normal form. 2927/13876 useless extension candidates. Maximal degree in co-relation 12718. Up to 2408 conditions per place. [2024-10-13 09:55:25,510 INFO L140 encePairwiseOnDemand]: 368/413 looper letters, 33 selfloop transitions, 2 changer transitions 1/366 dead transitions. [2024-10-13 09:55:25,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 366 transitions, 818 flow [2024-10-13 09:55:25,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 09:55:25,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 09:55:25,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1081 transitions. [2024-10-13 09:55:25,514 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8724778046811945 [2024-10-13 09:55:25,514 INFO L175 Difference]: Start difference. First operand has 370 places, 413 transitions, 842 flow. Second operand 3 states and 1081 transitions. [2024-10-13 09:55:25,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 366 transitions, 818 flow [2024-10-13 09:55:25,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 366 transitions, 818 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 09:55:25,521 INFO L231 Difference]: Finished difference. Result has 367 places, 365 transitions, 756 flow [2024-10-13 09:55:25,522 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=756, PETRI_PLACES=367, PETRI_TRANSITIONS=365} [2024-10-13 09:55:25,523 INFO L277 CegarLoopForPetriNet]: 370 programPoint places, -3 predicate places. [2024-10-13 09:55:25,523 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 365 transitions, 756 flow [2024-10-13 09:55:25,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 335.3333333333333) internal successors, (1006), 3 states have internal predecessors, (1006), 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 09:55:25,523 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:55:25,524 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] [2024-10-13 09:55:25,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 09:55:25,524 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-13 09:55:25,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:55:25,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1869159422, now seen corresponding path program 1 times [2024-10-13 09:55:25,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:55:25,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122696067] [2024-10-13 09:55:25,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:55:25,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:55:25,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:55:25,582 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 09:55:25,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:55:25,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122696067] [2024-10-13 09:55:25,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122696067] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:55:25,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468502208] [2024-10-13 09:55:25,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:55:25,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:55:25,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:55:25,585 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:55:25,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 09:55:25,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:55:25,676 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 09:55:25,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:55:25,706 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 09:55:25,707 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:55:25,737 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 09:55:25,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468502208] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:55:25,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:55:25,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-13 09:55:25,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838915167] [2024-10-13 09:55:25,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:55:25,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-13 09:55:25,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:55:25,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-13 09:55:25,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-13 09:55:25,769 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 413 [2024-10-13 09:55:25,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 365 transitions, 756 flow. Second operand has 10 states, 10 states have (on average 332.8) internal successors, (3328), 10 states have internal predecessors, (3328), 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 09:55:25,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:55:25,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 413 [2024-10-13 09:55:25,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:55:27,705 INFO L124 PetriNetUnfolderBase]: 1580/11860 cut-off events. [2024-10-13 09:55:27,705 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-10-13 09:55:27,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14340 conditions, 11860 events. 1580/11860 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 142561 event pairs, 1464 based on Foata normal form. 2/10958 useless extension candidates. Maximal degree in co-relation 14303. Up to 2408 conditions per place. [2024-10-13 09:55:27,782 INFO L140 encePairwiseOnDemand]: 407/413 looper letters, 37 selfloop transitions, 9 changer transitions 0/373 dead transitions. [2024-10-13 09:55:27,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 373 transitions, 866 flow [2024-10-13 09:55:27,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 09:55:27,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 09:55:27,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3027 transitions. [2024-10-13 09:55:27,788 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.814366424535916 [2024-10-13 09:55:27,788 INFO L175 Difference]: Start difference. First operand has 367 places, 365 transitions, 756 flow. Second operand 9 states and 3027 transitions. [2024-10-13 09:55:27,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 373 transitions, 866 flow [2024-10-13 09:55:27,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 373 transitions, 864 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:55:27,794 INFO L231 Difference]: Finished difference. Result has 376 places, 371 transitions, 804 flow [2024-10-13 09:55:27,795 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=804, PETRI_PLACES=376, PETRI_TRANSITIONS=371} [2024-10-13 09:55:27,797 INFO L277 CegarLoopForPetriNet]: 370 programPoint places, 6 predicate places. [2024-10-13 09:55:27,798 INFO L471 AbstractCegarLoop]: Abstraction has has 376 places, 371 transitions, 804 flow [2024-10-13 09:55:27,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 332.8) internal successors, (3328), 10 states have internal predecessors, (3328), 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 09:55:27,799 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:55:27,799 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:55:27,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-13 09:55:28,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:55:28,001 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-13 09:55:28,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:55:28,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1610852546, now seen corresponding path program 2 times [2024-10-13 09:55:28,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:55:28,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225512291] [2024-10-13 09:55:28,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:55:28,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:55:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:55:28,114 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 09:55:28,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:55:28,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225512291] [2024-10-13 09:55:28,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225512291] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:55:28,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417015850] [2024-10-13 09:55:28,115 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:55:28,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:55:28,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:55:28,117 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:55:28,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 09:55:28,211 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:55:28,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:55:28,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-13 09:55:28,215 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:55:28,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-13 09:55:28,285 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 [2024-10-13 09:55:28,318 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:55:28,318 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 [2024-10-13 09:55:28,360 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:55:28,361 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 [2024-10-13 09:55:28,392 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-13 09:55:28,393 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:55:28,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417015850] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:55:28,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:55:28,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2024-10-13 09:55:28,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688101117] [2024-10-13 09:55:28,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:55:28,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 09:55:28,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:55:28,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 09:55:28,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-13 09:55:28,863 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 413 [2024-10-13 09:55:28,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 376 places, 371 transitions, 804 flow. Second operand has 8 states, 8 states have (on average 262.125) internal successors, (2097), 8 states have internal predecessors, (2097), 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 09:55:28,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:55:28,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 413 [2024-10-13 09:55:28,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:55:54,069 INFO L124 PetriNetUnfolderBase]: 77253/188802 cut-off events. [2024-10-13 09:55:54,069 INFO L125 PetriNetUnfolderBase]: For 296/296 co-relation queries the response was YES. [2024-10-13 09:55:54,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304538 conditions, 188802 events. 77253/188802 cut-off events. For 296/296 co-relation queries the response was YES. Maximal size of possible extension queue 3719. Compared 2541365 event pairs, 70336 based on Foata normal form. 1/174105 useless extension candidates. Maximal degree in co-relation 304472. Up to 110272 conditions per place. [2024-10-13 09:55:55,402 INFO L140 encePairwiseOnDemand]: 401/413 looper letters, 188 selfloop transitions, 11 changer transitions 0/463 dead transitions. [2024-10-13 09:55:55,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 383 places, 463 transitions, 1386 flow [2024-10-13 09:55:55,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 09:55:55,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 09:55:55,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2289 transitions. [2024-10-13 09:55:55,408 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6927966101694916 [2024-10-13 09:55:55,408 INFO L175 Difference]: Start difference. First operand has 376 places, 371 transitions, 804 flow. Second operand 8 states and 2289 transitions. [2024-10-13 09:55:55,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 383 places, 463 transitions, 1386 flow [2024-10-13 09:55:55,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 382 places, 463 transitions, 1380 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-13 09:55:55,416 INFO L231 Difference]: Finished difference. Result has 387 places, 379 transitions, 869 flow [2024-10-13 09:55:55,417 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=798, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=869, PETRI_PLACES=387, PETRI_TRANSITIONS=379} [2024-10-13 09:55:55,417 INFO L277 CegarLoopForPetriNet]: 370 programPoint places, 17 predicate places. [2024-10-13 09:55:55,418 INFO L471 AbstractCegarLoop]: Abstraction has has 387 places, 379 transitions, 869 flow [2024-10-13 09:55:55,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 262.125) internal successors, (2097), 8 states have internal predecessors, (2097), 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 09:55:55,419 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:55:55,419 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:55:55,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-13 09:55:55,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:55:55,624 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-13 09:55:55,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:55:55,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1561714772, now seen corresponding path program 1 times [2024-10-13 09:55:55,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:55:55,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701310606] [2024-10-13 09:55:55,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:55:55,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:55:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:55:55,765 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-13 09:55:55,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:55:55,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701310606] [2024-10-13 09:55:55,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701310606] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:55:55,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550852051] [2024-10-13 09:55:55,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:55:55,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:55:55,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:55:55,769 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:55:55,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-13 09:55:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:55:55,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 09:55:55,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:55:55,929 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-13 09:55:55,929 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 09:55:56,015 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-13 09:55:56,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550852051] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 09:55:56,015 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 09:55:56,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-13 09:55:56,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456625919] [2024-10-13 09:55:56,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 09:55:56,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-13 09:55:56,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:55:56,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-13 09:55:56,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-13 09:55:56,048 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 413 [2024-10-13 09:55:56,053 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 379 transitions, 869 flow. Second operand has 18 states, 18 states have (on average 332.94444444444446) internal successors, (5993), 18 states have internal predecessors, (5993), 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 09:55:56,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:55:56,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 413 [2024-10-13 09:55:56,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 09:55:57,808 INFO L124 PetriNetUnfolderBase]: 1611/12112 cut-off events. [2024-10-13 09:55:57,808 INFO L125 PetriNetUnfolderBase]: For 115/119 co-relation queries the response was YES. [2024-10-13 09:55:57,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14964 conditions, 12112 events. 1611/12112 cut-off events. For 115/119 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 146952 event pairs, 1492 based on Foata normal form. 4/11183 useless extension candidates. Maximal degree in co-relation 14821. Up to 2431 conditions per place. [2024-10-13 09:55:57,915 INFO L140 encePairwiseOnDemand]: 407/413 looper letters, 41 selfloop transitions, 21 changer transitions 0/397 dead transitions. [2024-10-13 09:55:57,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 397 transitions, 1081 flow [2024-10-13 09:55:57,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-13 09:55:57,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-10-13 09:55:57,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 7017 transitions. [2024-10-13 09:55:57,927 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8090626080940851 [2024-10-13 09:55:57,927 INFO L175 Difference]: Start difference. First operand has 387 places, 379 transitions, 869 flow. Second operand 21 states and 7017 transitions. [2024-10-13 09:55:57,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 397 transitions, 1081 flow [2024-10-13 09:55:57,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 397 transitions, 1079 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 09:55:58,185 INFO L231 Difference]: Finished difference. Result has 411 places, 392 transitions, 997 flow [2024-10-13 09:55:58,186 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=867, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=997, PETRI_PLACES=411, PETRI_TRANSITIONS=392} [2024-10-13 09:55:58,187 INFO L277 CegarLoopForPetriNet]: 370 programPoint places, 41 predicate places. [2024-10-13 09:55:58,187 INFO L471 AbstractCegarLoop]: Abstraction has has 411 places, 392 transitions, 997 flow [2024-10-13 09:55:58,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 332.94444444444446) internal successors, (5993), 18 states have internal predecessors, (5993), 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 09:55:58,190 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 09:55:58,191 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 09:55:58,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-13 09:55:58,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-13 09:55:58,392 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-10-13 09:55:58,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 09:55:58,393 INFO L85 PathProgramCache]: Analyzing trace with hash 391133484, now seen corresponding path program 2 times [2024-10-13 09:55:58,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 09:55:58,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690207150] [2024-10-13 09:55:58,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 09:55:58,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 09:55:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 09:55:58,717 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-13 09:55:58,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 09:55:58,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690207150] [2024-10-13 09:55:58,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690207150] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 09:55:58,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073117956] [2024-10-13 09:55:58,718 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 09:55:58,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 09:55:58,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 09:55:58,720 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 09:55:58,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-13 09:55:58,835 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 09:55:58,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 09:55:58,836 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-13 09:55:58,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 09:55:58,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-10-13 09:55:58,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2024-10-13 09:55:58,898 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:55:58,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2024-10-13 09:55:58,941 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-13 09:55:58,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 57 [2024-10-13 09:55:58,976 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-13 09:55:58,976 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 09:55:58,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073117956] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 09:55:58,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 09:55:58,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-10-13 09:55:58,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682897846] [2024-10-13 09:55:58,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 09:55:58,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 09:55:58,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 09:55:58,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 09:55:58,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-10-13 09:55:59,335 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 413 [2024-10-13 09:55:59,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 392 transitions, 997 flow. Second operand has 6 states, 6 states have (on average 264.6666666666667) internal successors, (1588), 6 states have internal predecessors, (1588), 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 09:55:59,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 09:55:59,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 413 [2024-10-13 09:55:59,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand