./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:31:25,531 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:31:25,606 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:31:25,612 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:31:25,616 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:31:25,644 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:31:25,645 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:31:25,645 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:31:25,646 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:31:25,646 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:31:25,647 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:31:25,647 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:31:25,648 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:31:25,648 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:31:25,648 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:31:25,648 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:31:25,649 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:31:25,649 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:31:25,649 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:31:25,649 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:31:25,649 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:31:25,649 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:31:25,649 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:31:25,649 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:31:25,649 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:31:25,650 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:31:25,650 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:31:25,650 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:31:25,650 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:31:25,650 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:31:25,650 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:31:25,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:31:25,650 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:31:25,650 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:31:25,650 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:31:25,650 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:31:25,651 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:31:25,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:31:25,651 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:31:25,651 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:31:25,651 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:31:25,651 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:31:25,651 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 9205365dcda04af07212d180b1c6367c5de79b6e0d2e09ec11b949fed58626f5 [2025-02-08 05:31:25,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:31:25,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:31:25,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:31:25,918 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:31:25,918 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:31:25,919 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2025-02-08 05:31:27,211 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/04f8b26a4/e5084be595e0401da732db3a8484e861/FLAGca4331589 [2025-02-08 05:31:27,570 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:31:27,573 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2025-02-08 05:31:27,590 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/04f8b26a4/e5084be595e0401da732db3a8484e861/FLAGca4331589 [2025-02-08 05:31:27,774 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/04f8b26a4/e5084be595e0401da732db3a8484e861 [2025-02-08 05:31:27,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:31:27,778 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:31:27,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:31:27,779 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:31:27,784 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:31:27,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:31:27" (1/1) ... [2025-02-08 05:31:27,788 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36f42733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:27, skipping insertion in model container [2025-02-08 05:31:27,788 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:31:27" (1/1) ... [2025-02-08 05:31:27,824 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:31:28,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:31:28,100 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:31:28,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:31:28,179 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:31:28,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:28 WrapperNode [2025-02-08 05:31:28,180 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:31:28,181 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:31:28,181 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:31:28,181 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:31:28,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:28" (1/1) ... [2025-02-08 05:31:28,203 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:28" (1/1) ... [2025-02-08 05:31:28,232 INFO L138 Inliner]: procedures = 162, calls = 77, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 130 [2025-02-08 05:31:28,232 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:31:28,233 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:31:28,233 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:31:28,233 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:31:28,239 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:28" (1/1) ... [2025-02-08 05:31:28,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:28" (1/1) ... [2025-02-08 05:31:28,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:28" (1/1) ... [2025-02-08 05:31:28,244 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:28" (1/1) ... [2025-02-08 05:31:28,252 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:28" (1/1) ... [2025-02-08 05:31:28,254 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:28" (1/1) ... [2025-02-08 05:31:28,255 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:28" (1/1) ... [2025-02-08 05:31:28,256 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:28" (1/1) ... [2025-02-08 05:31:28,262 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:31:28,263 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:31:28,263 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:31:28,263 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:31:28,264 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:28" (1/1) ... [2025-02-08 05:31:28,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:31:28,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:31:28,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 05:31:28,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 05:31:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-08 05:31:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-08 05:31:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 05:31:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:31:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-08 05:31:28,329 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-08 05:31:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:31:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 05:31:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:31:28,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:31:28,331 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 05:31:28,454 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:31:28,456 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:31:28,795 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:31:28,796 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:31:28,823 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:31:28,824 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:31:28,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:31:28 BoogieIcfgContainer [2025-02-08 05:31:28,827 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:31:28,829 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:31:28,830 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:31:28,834 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:31:28,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:31:27" (1/3) ... [2025-02-08 05:31:28,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c8b10d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:31:28, skipping insertion in model container [2025-02-08 05:31:28,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:31:28" (2/3) ... [2025-02-08 05:31:28,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c8b10d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:31:28, skipping insertion in model container [2025-02-08 05:31:28,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:31:28" (3/3) ... [2025-02-08 05:31:28,837 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_23-idxsense_nr.i [2025-02-08 05:31:28,851 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:31:28,853 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_23-idxsense_nr.i that has 2 procedures, 160 locations, 1 initial locations, 1 loop locations, and 6 error locations. [2025-02-08 05:31:28,853 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:31:28,926 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 05:31:28,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 160 transitions, 324 flow [2025-02-08 05:31:29,043 INFO L124 PetriNetUnfolderBase]: 1/159 cut-off events. [2025-02-08 05:31:29,046 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:31:29,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 159 events. 1/159 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 80. Up to 2 conditions per place. [2025-02-08 05:31:29,050 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 160 transitions, 324 flow [2025-02-08 05:31:29,055 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 159 transitions, 321 flow [2025-02-08 05:31:29,070 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:31:29,082 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;@73a5a3e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:31:29,082 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-02-08 05:31:29,106 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:31:29,107 INFO L124 PetriNetUnfolderBase]: 1/98 cut-off events. [2025-02-08 05:31:29,107 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:31:29,107 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:29,108 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:29,108 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-02-08 05:31:29,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:29,113 INFO L85 PathProgramCache]: Analyzing trace with hash -2139884639, now seen corresponding path program 1 times [2025-02-08 05:31:29,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:29,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711611538] [2025-02-08 05:31:29,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:29,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:29,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-02-08 05:31:29,264 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-02-08 05:31:29,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:29,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:29,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:29,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:29,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711611538] [2025-02-08 05:31:29,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711611538] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:29,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:29,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 05:31:29,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113355731] [2025-02-08 05:31:29,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:29,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:31:29,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:29,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:31:29,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:31:29,601 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 160 [2025-02-08 05:31:29,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 159 transitions, 321 flow. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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) [2025-02-08 05:31:29,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:29,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 160 [2025-02-08 05:31:29,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:29,753 INFO L124 PetriNetUnfolderBase]: 11/298 cut-off events. [2025-02-08 05:31:29,756 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:31:29,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337 conditions, 298 events. 11/298 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 607 event pairs, 10 based on Foata normal form. 1/280 useless extension candidates. Maximal degree in co-relation 240. Up to 34 conditions per place. [2025-02-08 05:31:29,764 INFO L140 encePairwiseOnDemand]: 157/160 looper letters, 12 selfloop transitions, 2 changer transitions 0/160 dead transitions. [2025-02-08 05:31:29,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 160 transitions, 351 flow [2025-02-08 05:31:29,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:31:29,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:31:29,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 456 transitions. [2025-02-08 05:31:29,782 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.95 [2025-02-08 05:31:29,784 INFO L175 Difference]: Start difference. First operand has 162 places, 159 transitions, 321 flow. Second operand 3 states and 456 transitions. [2025-02-08 05:31:29,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 160 transitions, 351 flow [2025-02-08 05:31:29,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 160 transitions, 350 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 05:31:29,796 INFO L231 Difference]: Finished difference. Result has 164 places, 160 transitions, 332 flow [2025-02-08 05:31:29,799 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=164, PETRI_TRANSITIONS=160} [2025-02-08 05:31:29,806 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 2 predicate places. [2025-02-08 05:31:29,806 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 160 transitions, 332 flow [2025-02-08 05:31:29,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 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) [2025-02-08 05:31:29,807 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:29,807 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:29,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 05:31:29,807 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-02-08 05:31:29,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:29,810 INFO L85 PathProgramCache]: Analyzing trace with hash -546061459, now seen corresponding path program 1 times [2025-02-08 05:31:29,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:29,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336248353] [2025-02-08 05:31:29,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:29,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:29,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-02-08 05:31:29,868 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-02-08 05:31:29,868 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:29,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:30,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:30,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:30,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336248353] [2025-02-08 05:31:30,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336248353] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 05:31:30,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25366856] [2025-02-08 05:31:30,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:30,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:31:30,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:31:30,075 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:31:30,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 05:31:30,159 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-02-08 05:31:30,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-02-08 05:31:30,210 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:30,210 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:30,212 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 05:31:30,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:31:30,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:30,295 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:31:30,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:30,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25366856] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:31:30,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 05:31:30,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-02-08 05:31:30,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675218508] [2025-02-08 05:31:30,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 05:31:30,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 05:31:30,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:30,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 05:31:30,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-08 05:31:30,399 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-02-08 05:31:30,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 160 transitions, 332 flow. Second operand has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 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) [2025-02-08 05:31:30,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:30,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-02-08 05:31:30,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:30,566 INFO L124 PetriNetUnfolderBase]: 11/305 cut-off events. [2025-02-08 05:31:30,566 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:31:30,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 305 events. 11/305 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 602 event pairs, 10 based on Foata normal form. 2/288 useless extension candidates. Maximal degree in co-relation 277. Up to 34 conditions per place. [2025-02-08 05:31:30,570 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 16 selfloop transitions, 9 changer transitions 0/168 dead transitions. [2025-02-08 05:31:30,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 168 transitions, 400 flow [2025-02-08 05:31:30,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 05:31:30,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 05:31:30,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1323 transitions. [2025-02-08 05:31:30,579 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.91875 [2025-02-08 05:31:30,579 INFO L175 Difference]: Start difference. First operand has 164 places, 160 transitions, 332 flow. Second operand 9 states and 1323 transitions. [2025-02-08 05:31:30,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 168 transitions, 400 flow [2025-02-08 05:31:30,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 168 transitions, 398 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 05:31:30,584 INFO L231 Difference]: Finished difference. Result has 174 places, 166 transitions, 380 flow [2025-02-08 05:31:30,586 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=380, PETRI_PLACES=174, PETRI_TRANSITIONS=166} [2025-02-08 05:31:30,588 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 12 predicate places. [2025-02-08 05:31:30,588 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 166 transitions, 380 flow [2025-02-08 05:31:30,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 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) [2025-02-08 05:31:30,589 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:30,590 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:30,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 05:31:30,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:31:30,794 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-02-08 05:31:30,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:30,796 INFO L85 PathProgramCache]: Analyzing trace with hash 505508845, now seen corresponding path program 2 times [2025-02-08 05:31:30,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:30,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684391945] [2025-02-08 05:31:30,797 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:31:30,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:30,812 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 100 statements into 2 equivalence classes. [2025-02-08 05:31:30,821 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 85 of 100 statements. [2025-02-08 05:31:30,822 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:31:30,822 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:31,404 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-08 05:31:31,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:31,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684391945] [2025-02-08 05:31:31,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684391945] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:31,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:31,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:31:31,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731394695] [2025-02-08 05:31:31,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:31,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:31:31,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:31,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:31:31,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:31:31,701 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 160 [2025-02-08 05:31:31,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 166 transitions, 380 flow. Second operand has 6 states, 6 states have (on average 131.33333333333334) internal successors, (788), 6 states have internal predecessors, (788), 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) [2025-02-08 05:31:31,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:31,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 160 [2025-02-08 05:31:31,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:32,072 INFO L124 PetriNetUnfolderBase]: 285/1081 cut-off events. [2025-02-08 05:31:32,072 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-08 05:31:32,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1734 conditions, 1081 events. 285/1081 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 6250 event pairs, 72 based on Foata normal form. 0/1038 useless extension candidates. Maximal degree in co-relation 1620. Up to 287 conditions per place. [2025-02-08 05:31:32,078 INFO L140 encePairwiseOnDemand]: 138/160 looper letters, 98 selfloop transitions, 42 changer transitions 0/276 dead transitions. [2025-02-08 05:31:32,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 276 transitions, 880 flow [2025-02-08 05:31:32,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:31:32,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:31:32,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 922 transitions. [2025-02-08 05:31:32,081 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9604166666666667 [2025-02-08 05:31:32,081 INFO L175 Difference]: Start difference. First operand has 174 places, 166 transitions, 380 flow. Second operand 6 states and 922 transitions. [2025-02-08 05:31:32,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 276 transitions, 880 flow [2025-02-08 05:31:32,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 276 transitions, 874 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-02-08 05:31:32,090 INFO L231 Difference]: Finished difference. Result has 183 places, 212 transitions, 690 flow [2025-02-08 05:31:32,091 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=690, PETRI_PLACES=183, PETRI_TRANSITIONS=212} [2025-02-08 05:31:32,092 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 21 predicate places. [2025-02-08 05:31:32,092 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 212 transitions, 690 flow [2025-02-08 05:31:32,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 131.33333333333334) internal successors, (788), 6 states have internal predecessors, (788), 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) [2025-02-08 05:31:32,093 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:32,094 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:32,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 05:31:32,094 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-02-08 05:31:32,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:32,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1612737143, now seen corresponding path program 1 times [2025-02-08 05:31:32,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:32,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861218282] [2025-02-08 05:31:32,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:32,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:32,115 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-02-08 05:31:32,125 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-02-08 05:31:32,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:32,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:32,313 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:32,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:32,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861218282] [2025-02-08 05:31:32,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861218282] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 05:31:32,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146744704] [2025-02-08 05:31:32,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:32,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:31:32,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:31:32,316 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:31:32,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 05:31:32,382 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-02-08 05:31:32,415 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-02-08 05:31:32,416 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:32,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:32,418 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 05:31:32,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:31:32,484 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:32,484 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:31:32,592 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:32,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146744704] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:31:32,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 05:31:32,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-02-08 05:31:32,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169222259] [2025-02-08 05:31:32,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 05:31:32,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-08 05:31:32,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:32,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-08 05:31:32,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-02-08 05:31:32,624 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-02-08 05:31:32,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 212 transitions, 690 flow. Second operand has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 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) [2025-02-08 05:31:32,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:32,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-02-08 05:31:32,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:32,945 INFO L124 PetriNetUnfolderBase]: 127/838 cut-off events. [2025-02-08 05:31:32,945 INFO L125 PetriNetUnfolderBase]: For 135/150 co-relation queries the response was YES. [2025-02-08 05:31:32,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1549 conditions, 838 events. 127/838 cut-off events. For 135/150 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4682 event pairs, 45 based on Foata normal form. 4/823 useless extension candidates. Maximal degree in co-relation 1359. Up to 132 conditions per place. [2025-02-08 05:31:32,950 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 20 selfloop transitions, 21 changer transitions 0/230 dead transitions. [2025-02-08 05:31:32,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 230 transitions, 860 flow [2025-02-08 05:31:32,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-08 05:31:32,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-08 05:31:32,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3069 transitions. [2025-02-08 05:31:32,958 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9133928571428571 [2025-02-08 05:31:32,958 INFO L175 Difference]: Start difference. First operand has 183 places, 212 transitions, 690 flow. Second operand 21 states and 3069 transitions. [2025-02-08 05:31:32,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 230 transitions, 860 flow [2025-02-08 05:31:32,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 230 transitions, 860 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:31:32,968 INFO L231 Difference]: Finished difference. Result has 208 places, 225 transitions, 820 flow [2025-02-08 05:31:32,969 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=820, PETRI_PLACES=208, PETRI_TRANSITIONS=225} [2025-02-08 05:31:32,971 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 46 predicate places. [2025-02-08 05:31:32,971 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 225 transitions, 820 flow [2025-02-08 05:31:32,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 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) [2025-02-08 05:31:32,973 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:32,973 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:32,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-08 05:31:33,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:31:33,174 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-02-08 05:31:33,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:33,175 INFO L85 PathProgramCache]: Analyzing trace with hash -260765321, now seen corresponding path program 2 times [2025-02-08 05:31:33,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:33,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320090275] [2025-02-08 05:31:33,175 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:31:33,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:33,192 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 121 statements into 2 equivalence classes. [2025-02-08 05:31:33,203 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 86 of 121 statements. [2025-02-08 05:31:33,203 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:31:33,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:33,592 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-02-08 05:31:33,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:33,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320090275] [2025-02-08 05:31:33,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320090275] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:33,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:33,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:31:33,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936402136] [2025-02-08 05:31:33,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:33,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:31:33,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:33,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:31:33,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:31:33,940 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 160 [2025-02-08 05:31:33,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 225 transitions, 820 flow. Second operand has 6 states, 6 states have (on average 142.33333333333334) internal successors, (854), 6 states have internal predecessors, (854), 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) [2025-02-08 05:31:33,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:33,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 160 [2025-02-08 05:31:33,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:34,117 INFO L124 PetriNetUnfolderBase]: 141/900 cut-off events. [2025-02-08 05:31:34,118 INFO L125 PetriNetUnfolderBase]: For 146/168 co-relation queries the response was YES. [2025-02-08 05:31:34,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1642 conditions, 900 events. 141/900 cut-off events. For 146/168 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5147 event pairs, 49 based on Foata normal form. 3/881 useless extension candidates. Maximal degree in co-relation 1444. Up to 129 conditions per place. [2025-02-08 05:31:34,123 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 21 selfloop transitions, 5 changer transitions 0/232 dead transitions. [2025-02-08 05:31:34,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 232 transitions, 886 flow [2025-02-08 05:31:34,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:31:34,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:31:34,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 873 transitions. [2025-02-08 05:31:34,126 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.909375 [2025-02-08 05:31:34,126 INFO L175 Difference]: Start difference. First operand has 208 places, 225 transitions, 820 flow. Second operand 6 states and 873 transitions. [2025-02-08 05:31:34,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 232 transitions, 886 flow [2025-02-08 05:31:34,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 232 transitions, 862 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-02-08 05:31:34,134 INFO L231 Difference]: Finished difference. Result has 206 places, 224 transitions, 804 flow [2025-02-08 05:31:34,134 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=804, PETRI_PLACES=206, PETRI_TRANSITIONS=224} [2025-02-08 05:31:34,135 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 44 predicate places. [2025-02-08 05:31:34,135 INFO L471 AbstractCegarLoop]: Abstraction has has 206 places, 224 transitions, 804 flow [2025-02-08 05:31:34,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 142.33333333333334) internal successors, (854), 6 states have internal predecessors, (854), 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) [2025-02-08 05:31:34,136 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:34,136 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:34,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 05:31:34,137 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-02-08 05:31:34,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:34,138 INFO L85 PathProgramCache]: Analyzing trace with hash 360321265, now seen corresponding path program 1 times [2025-02-08 05:31:34,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:34,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452006144] [2025-02-08 05:31:34,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:34,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:34,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-02-08 05:31:34,166 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-02-08 05:31:34,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:34,166 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:34,517 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:34,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:34,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452006144] [2025-02-08 05:31:34,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452006144] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 05:31:34,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426952773] [2025-02-08 05:31:34,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:34,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:31:34,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:31:34,520 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:31:34,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 05:31:34,579 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-02-08 05:31:34,616 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-02-08 05:31:34,616 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:34,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:34,618 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-08 05:31:34,621 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:31:34,729 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:34,730 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:31:34,952 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:31:34,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426952773] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:31:34,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 05:31:34,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-02-08 05:31:34,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627482871] [2025-02-08 05:31:34,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 05:31:34,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 05:31:34,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:34,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 05:31:34,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-02-08 05:31:34,994 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-02-08 05:31:34,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 224 transitions, 804 flow. Second operand has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 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) [2025-02-08 05:31:34,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:34,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-02-08 05:31:34,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:35,445 INFO L124 PetriNetUnfolderBase]: 127/852 cut-off events. [2025-02-08 05:31:35,446 INFO L125 PetriNetUnfolderBase]: For 252/267 co-relation queries the response was YES. [2025-02-08 05:31:35,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1644 conditions, 852 events. 127/852 cut-off events. For 252/267 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4677 event pairs, 45 based on Foata normal form. 3/837 useless extension candidates. Maximal degree in co-relation 1370. Up to 132 conditions per place. [2025-02-08 05:31:35,453 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 23 selfloop transitions, 30 changer transitions 0/241 dead transitions. [2025-02-08 05:31:35,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 241 transitions, 1032 flow [2025-02-08 05:31:35,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-02-08 05:31:35,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-02-08 05:31:35,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4376 transitions. [2025-02-08 05:31:35,464 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9116666666666666 [2025-02-08 05:31:35,464 INFO L175 Difference]: Start difference. First operand has 206 places, 224 transitions, 804 flow. Second operand 30 states and 4376 transitions. [2025-02-08 05:31:35,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 241 transitions, 1032 flow [2025-02-08 05:31:35,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 241 transitions, 1022 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 05:31:35,474 INFO L231 Difference]: Finished difference. Result has 234 places, 234 transitions, 946 flow [2025-02-08 05:31:35,475 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=946, PETRI_PLACES=234, PETRI_TRANSITIONS=234} [2025-02-08 05:31:35,476 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 72 predicate places. [2025-02-08 05:31:35,476 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 234 transitions, 946 flow [2025-02-08 05:31:35,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 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) [2025-02-08 05:31:35,479 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:35,480 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:35,488 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 05:31:35,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:31:35,684 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-02-08 05:31:35,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:35,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1601447643, now seen corresponding path program 2 times [2025-02-08 05:31:35,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:35,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128502615] [2025-02-08 05:31:35,685 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:31:35,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:35,704 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 143 statements into 2 equivalence classes. [2025-02-08 05:31:35,710 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 93 of 143 statements. [2025-02-08 05:31:35,712 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:31:35,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:36,074 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-08 05:31:36,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:36,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128502615] [2025-02-08 05:31:36,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128502615] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:36,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:36,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:31:36,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381378484] [2025-02-08 05:31:36,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:36,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:31:36,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:36,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:31:36,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:31:36,337 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 160 [2025-02-08 05:31:36,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 234 transitions, 946 flow. Second operand has 6 states, 6 states have (on average 131.33333333333334) internal successors, (788), 6 states have internal predecessors, (788), 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) [2025-02-08 05:31:36,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:36,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 160 [2025-02-08 05:31:36,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:36,663 INFO L124 PetriNetUnfolderBase]: 445/1510 cut-off events. [2025-02-08 05:31:36,663 INFO L125 PetriNetUnfolderBase]: For 726/760 co-relation queries the response was YES. [2025-02-08 05:31:36,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3673 conditions, 1510 events. 445/1510 cut-off events. For 726/760 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9420 event pairs, 117 based on Foata normal form. 24/1511 useless extension candidates. Maximal degree in co-relation 3398. Up to 640 conditions per place. [2025-02-08 05:31:36,672 INFO L140 encePairwiseOnDemand]: 143/160 looper letters, 109 selfloop transitions, 53 changer transitions 6/325 dead transitions. [2025-02-08 05:31:36,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 325 transitions, 1650 flow [2025-02-08 05:31:36,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:31:36,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:31:36,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 882 transitions. [2025-02-08 05:31:36,675 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.91875 [2025-02-08 05:31:36,675 INFO L175 Difference]: Start difference. First operand has 234 places, 234 transitions, 946 flow. Second operand 6 states and 882 transitions. [2025-02-08 05:31:36,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 325 transitions, 1650 flow [2025-02-08 05:31:36,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 325 transitions, 1604 flow, removed 5 selfloop flow, removed 18 redundant places. [2025-02-08 05:31:36,689 INFO L231 Difference]: Finished difference. Result has 226 places, 285 transitions, 1406 flow [2025-02-08 05:31:36,689 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=900, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1406, PETRI_PLACES=226, PETRI_TRANSITIONS=285} [2025-02-08 05:31:36,691 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 64 predicate places. [2025-02-08 05:31:36,691 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 285 transitions, 1406 flow [2025-02-08 05:31:36,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 131.33333333333334) internal successors, (788), 6 states have internal predecessors, (788), 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) [2025-02-08 05:31:36,691 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:36,691 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:36,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 05:31:36,692 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-02-08 05:31:36,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:36,693 INFO L85 PathProgramCache]: Analyzing trace with hash -422587631, now seen corresponding path program 1 times [2025-02-08 05:31:36,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:36,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707574072] [2025-02-08 05:31:36,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:36,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:36,707 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-08 05:31:36,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-08 05:31:36,726 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:36,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:37,183 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-08 05:31:37,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:37,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707574072] [2025-02-08 05:31:37,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707574072] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:37,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:37,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:31:37,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622457977] [2025-02-08 05:31:37,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:37,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:31:37,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:37,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:31:37,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:31:37,540 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 160 [2025-02-08 05:31:37,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 285 transitions, 1406 flow. Second operand has 6 states, 6 states have (on average 139.5) internal successors, (837), 6 states have internal predecessors, (837), 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) [2025-02-08 05:31:37,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:37,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 160 [2025-02-08 05:31:37,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:37,762 INFO L124 PetriNetUnfolderBase]: 255/1247 cut-off events. [2025-02-08 05:31:37,762 INFO L125 PetriNetUnfolderBase]: For 1041/1114 co-relation queries the response was YES. [2025-02-08 05:31:37,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3042 conditions, 1247 events. 255/1247 cut-off events. For 1041/1114 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7956 event pairs, 57 based on Foata normal form. 9/1236 useless extension candidates. Maximal degree in co-relation 2783. Up to 215 conditions per place. [2025-02-08 05:31:37,771 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 25 selfloop transitions, 5 changer transitions 0/292 dead transitions. [2025-02-08 05:31:37,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 292 transitions, 1480 flow [2025-02-08 05:31:37,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:31:37,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:31:37,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 853 transitions. [2025-02-08 05:31:37,775 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8885416666666667 [2025-02-08 05:31:37,775 INFO L175 Difference]: Start difference. First operand has 226 places, 285 transitions, 1406 flow. Second operand 6 states and 853 transitions. [2025-02-08 05:31:37,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 292 transitions, 1480 flow [2025-02-08 05:31:37,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 292 transitions, 1472 flow, removed 4 selfloop flow, removed 0 redundant places. [2025-02-08 05:31:37,788 INFO L231 Difference]: Finished difference. Result has 230 places, 284 transitions, 1406 flow [2025-02-08 05:31:37,789 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=1396, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1406, PETRI_PLACES=230, PETRI_TRANSITIONS=284} [2025-02-08 05:31:37,790 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 68 predicate places. [2025-02-08 05:31:37,790 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 284 transitions, 1406 flow [2025-02-08 05:31:37,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.5) internal successors, (837), 6 states have internal predecessors, (837), 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) [2025-02-08 05:31:37,790 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:37,790 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:37,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 05:31:37,791 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-02-08 05:31:37,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:37,792 INFO L85 PathProgramCache]: Analyzing trace with hash 924197198, now seen corresponding path program 1 times [2025-02-08 05:31:37,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:37,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658119289] [2025-02-08 05:31:37,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:37,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:37,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-02-08 05:31:37,827 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-02-08 05:31:37,827 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:37,827 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:38,304 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-08 05:31:38,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:38,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658119289] [2025-02-08 05:31:38,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658119289] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:38,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:38,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:31:38,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711199823] [2025-02-08 05:31:38,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:38,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:31:38,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:38,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:31:38,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:31:38,591 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 160 [2025-02-08 05:31:38,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 284 transitions, 1406 flow. Second operand has 6 states, 6 states have (on average 129.83333333333334) internal successors, (779), 6 states have internal predecessors, (779), 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) [2025-02-08 05:31:38,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:38,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 160 [2025-02-08 05:31:38,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:38,959 INFO L124 PetriNetUnfolderBase]: 594/1878 cut-off events. [2025-02-08 05:31:38,959 INFO L125 PetriNetUnfolderBase]: For 2539/2584 co-relation queries the response was YES. [2025-02-08 05:31:38,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5684 conditions, 1878 events. 594/1878 cut-off events. For 2539/2584 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 12327 event pairs, 150 based on Foata normal form. 25/1871 useless extension candidates. Maximal degree in co-relation 5424. Up to 891 conditions per place. [2025-02-08 05:31:38,974 INFO L140 encePairwiseOnDemand]: 143/160 looper letters, 122 selfloop transitions, 58 changer transitions 39/376 dead transitions. [2025-02-08 05:31:38,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 376 transitions, 2368 flow [2025-02-08 05:31:38,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:31:38,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:31:38,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 864 transitions. [2025-02-08 05:31:38,978 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9 [2025-02-08 05:31:38,978 INFO L175 Difference]: Start difference. First operand has 230 places, 284 transitions, 1406 flow. Second operand 6 states and 864 transitions. [2025-02-08 05:31:38,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 376 transitions, 2368 flow [2025-02-08 05:31:38,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 376 transitions, 2358 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-08 05:31:38,995 INFO L231 Difference]: Finished difference. Result has 234 places, 311 transitions, 1804 flow [2025-02-08 05:31:38,995 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=1396, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1804, PETRI_PLACES=234, PETRI_TRANSITIONS=311} [2025-02-08 05:31:38,997 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 72 predicate places. [2025-02-08 05:31:38,997 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 311 transitions, 1804 flow [2025-02-08 05:31:38,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 129.83333333333334) internal successors, (779), 6 states have internal predecessors, (779), 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) [2025-02-08 05:31:38,997 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:31:38,998 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:31:38,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 05:31:38,998 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-02-08 05:31:38,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:31:38,999 INFO L85 PathProgramCache]: Analyzing trace with hash -2127953320, now seen corresponding path program 1 times [2025-02-08 05:31:38,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:31:38,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389538752] [2025-02-08 05:31:38,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:31:38,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:31:39,026 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-02-08 05:31:39,034 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-02-08 05:31:39,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:31:39,035 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:31:39,138 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-02-08 05:31:39,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:31:39,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389538752] [2025-02-08 05:31:39,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389538752] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:31:39,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:31:39,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 05:31:39,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141828313] [2025-02-08 05:31:39,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:31:39,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:31:39,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:31:39,139 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:31:39,139 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:31:39,221 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 160 [2025-02-08 05:31:39,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 311 transitions, 1804 flow. Second operand has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 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) [2025-02-08 05:31:39,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:31:39,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 160 [2025-02-08 05:31:39,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:31:39,263 INFO L124 PetriNetUnfolderBase]: 6/277 cut-off events. [2025-02-08 05:31:39,263 INFO L125 PetriNetUnfolderBase]: For 253/253 co-relation queries the response was YES. [2025-02-08 05:31:39,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 636 conditions, 277 events. 6/277 cut-off events. For 253/253 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 264 event pairs, 1 based on Foata normal form. 2/279 useless extension candidates. Maximal degree in co-relation 452. Up to 23 conditions per place. [2025-02-08 05:31:39,265 INFO L140 encePairwiseOnDemand]: 156/160 looper letters, 0 selfloop transitions, 0 changer transitions 185/185 dead transitions. [2025-02-08 05:31:39,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 185 transitions, 738 flow [2025-02-08 05:31:39,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:31:39,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:31:39,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2025-02-08 05:31:39,266 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9708333333333333 [2025-02-08 05:31:39,266 INFO L175 Difference]: Start difference. First operand has 234 places, 311 transitions, 1804 flow. Second operand 3 states and 466 transitions. [2025-02-08 05:31:39,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 185 transitions, 738 flow [2025-02-08 05:31:39,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 185 transitions, 600 flow, removed 30 selfloop flow, removed 29 redundant places. [2025-02-08 05:31:39,272 INFO L231 Difference]: Finished difference. Result has 203 places, 0 transitions, 0 flow [2025-02-08 05:31:39,272 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=203, PETRI_TRANSITIONS=0} [2025-02-08 05:31:39,272 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 41 predicate places. [2025-02-08 05:31:39,272 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 0 transitions, 0 flow [2025-02-08 05:31:39,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 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) [2025-02-08 05:31:39,275 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2025-02-08 05:31:39,275 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2025-02-08 05:31:39,275 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2025-02-08 05:31:39,275 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2025-02-08 05:31:39,276 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2025-02-08 05:31:39,276 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2025-02-08 05:31:39,276 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2025-02-08 05:31:39,276 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2025-02-08 05:31:39,276 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2025-02-08 05:31:39,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 05:31:39,277 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1] [2025-02-08 05:31:39,281 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 05:31:39,281 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 05:31:39,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 05:31:39 BasicIcfg [2025-02-08 05:31:39,288 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 05:31:39,288 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 05:31:39,289 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 05:31:39,289 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 05:31:39,289 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:31:28" (3/4) ... [2025-02-08 05:31:39,291 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 05:31:39,293 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-02-08 05:31:39,298 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-08 05:31:39,298 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-08 05:31:39,298 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-08 05:31:39,374 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 05:31:39,374 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 05:31:39,374 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 05:31:39,375 INFO L158 Benchmark]: Toolchain (without parser) took 11597.54ms. Allocated memory was 201.3MB in the beginning and 293.6MB in the end (delta: 92.3MB). Free memory was 157.4MB in the beginning and 160.2MB in the end (delta: -2.8MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB. [2025-02-08 05:31:39,376 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:31:39,376 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.58ms. Allocated memory is still 201.3MB. Free memory was 157.4MB in the beginning and 136.3MB in the end (delta: 21.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 05:31:39,376 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.54ms. Allocated memory is still 201.3MB. Free memory was 136.3MB in the beginning and 133.8MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:31:39,378 INFO L158 Benchmark]: Boogie Preprocessor took 29.28ms. Allocated memory is still 201.3MB. Free memory was 133.8MB in the beginning and 132.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:31:39,378 INFO L158 Benchmark]: IcfgBuilder took 563.98ms. Allocated memory is still 201.3MB. Free memory was 132.1MB in the beginning and 109.7MB in the end (delta: 22.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 05:31:39,379 INFO L158 Benchmark]: TraceAbstraction took 10458.59ms. Allocated memory was 201.3MB in the beginning and 293.6MB in the end (delta: 92.3MB). Free memory was 108.9MB in the beginning and 166.9MB in the end (delta: -58.1MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2025-02-08 05:31:39,379 INFO L158 Benchmark]: Witness Printer took 86.28ms. Allocated memory is still 293.6MB. Free memory was 166.9MB in the beginning and 160.2MB in the end (delta: 6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 05:31:39,381 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 116.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.58ms. Allocated memory is still 201.3MB. Free memory was 157.4MB in the beginning and 136.3MB in the end (delta: 21.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.54ms. Allocated memory is still 201.3MB. Free memory was 136.3MB in the beginning and 133.8MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.28ms. Allocated memory is still 201.3MB. Free memory was 133.8MB in the beginning and 132.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 563.98ms. Allocated memory is still 201.3MB. Free memory was 132.1MB in the beginning and 109.7MB in the end (delta: 22.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 10458.59ms. Allocated memory was 201.3MB in the beginning and 293.6MB in the end (delta: 92.3MB). Free memory was 108.9MB in the beginning and 166.9MB in the end (delta: -58.1MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * Witness Printer took 86.28ms. Allocated memory is still 293.6MB. Free memory was 166.9MB in the beginning and 160.2MB in the end (delta: 6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 696]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 683]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 188 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.3s, OverallIterations: 10, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1128 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 732 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 369 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2531 IncrementalHoareTripleChecker+Invalid, 2900 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 369 mSolverCounterUnsat, 16 mSDtfsCounter, 2531 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 733 GetRequests, 621 SyntacticMatches, 11 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1804occurred in iteration=9, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 1566 NumberOfCodeBlocks, 1466 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1869 ConstructedInterpolants, 0 QuantifiedInterpolants, 2680 SizeOfPredicates, 22 NumberOfNonLiveVariables, 721 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 1070/1463 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 05:31:39,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE