./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 551b0097 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-?-551b009-m [2025-01-09 21:22:53,643 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:22:53,700 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-01-09 21:22:53,704 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:22:53,704 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:22:53,719 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:22:53,720 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:22:53,720 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:22:53,720 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:22:53,720 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:22:53,721 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:22:53,721 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:22:53,721 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:22:53,721 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:22:53,721 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:22:53,721 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:22:53,721 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:22:53,721 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:22:53,721 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:22:53,722 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:22:53,722 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:22:53,722 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:22:53,722 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-01-09 21:22:53,722 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:22:53,722 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:22:53,722 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:22:53,722 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:22:53,722 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:22:53,722 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:22:53,722 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:22:53,722 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:22:53,723 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:22:53,723 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:22:53,723 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:22:53,723 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:22:53,723 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:22:53,723 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:22:53,723 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:22:53,723 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 21:22:53,723 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 21:22:53,723 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:22:53,723 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:22:53,723 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:22:53,723 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:22:53,724 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:22:53,724 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:22:53,724 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 [2025-01-09 21:22:53,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:22:54,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:22:54,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:22:54,006 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:22:54,006 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:22:54,008 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2025-01-09 21:22:55,153 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f5cd20054/ad7d213028234faf873ae6bc9a34489e/FLAG62408428d [2025-01-09 21:22:55,394 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:22:55,394 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_23-idxsense_nr.i [2025-01-09 21:22:55,405 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f5cd20054/ad7d213028234faf873ae6bc9a34489e/FLAG62408428d [2025-01-09 21:22:55,723 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f5cd20054/ad7d213028234faf873ae6bc9a34489e [2025-01-09 21:22:55,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:22:55,725 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:22:55,726 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:22:55,726 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:22:55,729 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:22:55,730 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:22:55" (1/1) ... [2025-01-09 21:22:55,730 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64bc7117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:55, skipping insertion in model container [2025-01-09 21:22:55,730 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:22:55" (1/1) ... [2025-01-09 21:22:55,750 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:22:55,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:22:55,961 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:22:55,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:22:56,025 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:22:56,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:56 WrapperNode [2025-01-09 21:22:56,027 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:22:56,028 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:22:56,028 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:22:56,028 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:22:56,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:56" (1/1) ... [2025-01-09 21:22:56,044 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:56" (1/1) ... [2025-01-09 21:22:56,060 INFO L138 Inliner]: procedures = 162, calls = 77, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 130 [2025-01-09 21:22:56,060 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:22:56,060 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:22:56,060 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:22:56,060 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:22:56,067 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:56" (1/1) ... [2025-01-09 21:22:56,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:56" (1/1) ... [2025-01-09 21:22:56,069 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:56" (1/1) ... [2025-01-09 21:22:56,069 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:56" (1/1) ... [2025-01-09 21:22:56,076 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:56" (1/1) ... [2025-01-09 21:22:56,077 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:56" (1/1) ... [2025-01-09 21:22:56,079 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:56" (1/1) ... [2025-01-09 21:22:56,080 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:56" (1/1) ... [2025-01-09 21:22:56,080 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:56" (1/1) ... [2025-01-09 21:22:56,082 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:22:56,082 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:22:56,082 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:22:56,082 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:22:56,083 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:56" (1/1) ... [2025-01-09 21:22:56,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:22:56,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:22:56,114 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) [2025-01-09 21:22:56,118 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 [2025-01-09 21:22:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-09 21:22:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-09 21:22:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-09 21:22:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:22:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-01-09 21:22:56,136 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-01-09 21:22:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 21:22:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-09 21:22:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:22:56,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:22:56,137 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-09 21:22:56,225 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:22:56,226 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:22:56,436 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 21:22:56,436 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:22:56,462 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:22:56,462 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 21:22:56,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:22:56 BoogieIcfgContainer [2025-01-09 21:22:56,462 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:22:56,464 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:22:56,464 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:22:56,467 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:22:56,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:22:55" (1/3) ... [2025-01-09 21:22:56,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42eff1bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:22:56, skipping insertion in model container [2025-01-09 21:22:56,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:56" (2/3) ... [2025-01-09 21:22:56,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42eff1bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:22:56, skipping insertion in model container [2025-01-09 21:22:56,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:22:56" (3/3) ... [2025-01-09 21:22:56,469 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_23-idxsense_nr.i [2025-01-09 21:22:56,481 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:22:56,483 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. [2025-01-09 21:22:56,484 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 21:22:56,550 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:22:56,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 160 transitions, 324 flow [2025-01-09 21:22:56,648 INFO L124 PetriNetUnfolderBase]: 1/159 cut-off events. [2025-01-09 21:22:56,651 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:22:56,654 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 72 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. [2025-01-09 21:22:56,657 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 160 transitions, 324 flow [2025-01-09 21:22:56,662 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 159 transitions, 321 flow [2025-01-09 21:22:56,668 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:22:56,678 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;@3ee2c290, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:22:56,679 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-01-09 21:22:56,704 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:22:56,704 INFO L124 PetriNetUnfolderBase]: 1/97 cut-off events. [2025-01-09 21:22:56,704 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:22:56,705 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:56,706 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] [2025-01-09 21:22:56,719 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:22:56,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:56,724 INFO L85 PathProgramCache]: Analyzing trace with hash -597789785, now seen corresponding path program 1 times [2025-01-09 21:22:56,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:56,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081121188] [2025-01-09 21:22:56,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:56,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:56,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-01-09 21:22:56,832 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-01-09 21:22:56,832 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:56,832 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:57,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:57,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:57,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081121188] [2025-01-09 21:22:57,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081121188] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:57,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:57,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 21:22:57,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633243406] [2025-01-09 21:22:57,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:57,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:22:57,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:57,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:22:57,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:22:57,073 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 160 [2025-01-09 21:22:57,076 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) [2025-01-09 21:22:57,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:57,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 160 [2025-01-09 21:22:57,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:57,133 INFO L124 PetriNetUnfolderBase]: 11/298 cut-off events. [2025-01-09 21:22:57,136 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:22:57,139 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 589 event pairs, 10 based on Foata normal form. 1/279 useless extension candidates. Maximal degree in co-relation 240. Up to 34 conditions per place. [2025-01-09 21:22:57,141 INFO L140 encePairwiseOnDemand]: 157/160 looper letters, 12 selfloop transitions, 2 changer transitions 0/160 dead transitions. [2025-01-09 21:22:57,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 160 transitions, 351 flow [2025-01-09 21:22:57,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:22:57,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:22:57,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 456 transitions. [2025-01-09 21:22:57,152 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.95 [2025-01-09 21:22:57,153 INFO L175 Difference]: Start difference. First operand has 162 places, 159 transitions, 321 flow. Second operand 3 states and 456 transitions. [2025-01-09 21:22:57,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 160 transitions, 351 flow [2025-01-09 21:22:57,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 160 transitions, 350 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-09 21:22:57,162 INFO L231 Difference]: Finished difference. Result has 164 places, 160 transitions, 332 flow [2025-01-09 21:22:57,163 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} [2025-01-09 21:22:57,165 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 2 predicate places. [2025-01-09 21:22:57,166 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 160 transitions, 332 flow [2025-01-09 21:22:57,166 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) [2025-01-09 21:22:57,166 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:57,166 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] [2025-01-09 21:22:57,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 21:22:57,166 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:22:57,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:57,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1790833500, now seen corresponding path program 1 times [2025-01-09 21:22:57,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:57,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118234256] [2025-01-09 21:22:57,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:57,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:57,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-01-09 21:22:57,200 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-01-09 21:22:57,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:57,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:57,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:57,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:57,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118234256] [2025-01-09 21:22:57,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118234256] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 21:22:57,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179747932] [2025-01-09 21:22:57,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:57,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:22:57,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:22:57,379 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) [2025-01-09 21:22:57,380 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 [2025-01-09 21:22:57,430 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-01-09 21:22:57,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-01-09 21:22:57,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:57,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:57,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 21:22:57,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:22:57,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:57,517 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 21:22:57,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:57,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179747932] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 21:22:57,559 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 21:22:57,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-01-09 21:22:57,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21060010] [2025-01-09 21:22:57,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 21:22:57,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 21:22:57,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:57,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 21:22:57,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-01-09 21:22:57,596 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-01-09 21:22:57,597 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) [2025-01-09 21:22:57,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:57,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-01-09 21:22:57,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:57,734 INFO L124 PetriNetUnfolderBase]: 11/305 cut-off events. [2025-01-09 21:22:57,734 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:22:57,736 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 583 event pairs, 10 based on Foata normal form. 2/287 useless extension candidates. Maximal degree in co-relation 277. Up to 34 conditions per place. [2025-01-09 21:22:57,738 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 16 selfloop transitions, 9 changer transitions 0/168 dead transitions. [2025-01-09 21:22:57,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 168 transitions, 400 flow [2025-01-09 21:22:57,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 21:22:57,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-09 21:22:57,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1323 transitions. [2025-01-09 21:22:57,744 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.91875 [2025-01-09 21:22:57,745 INFO L175 Difference]: Start difference. First operand has 164 places, 160 transitions, 332 flow. Second operand 9 states and 1323 transitions. [2025-01-09 21:22:57,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 168 transitions, 400 flow [2025-01-09 21:22:57,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 168 transitions, 398 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-09 21:22:57,749 INFO L231 Difference]: Finished difference. Result has 174 places, 166 transitions, 380 flow [2025-01-09 21:22:57,749 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} [2025-01-09 21:22:57,750 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 12 predicate places. [2025-01-09 21:22:57,750 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 166 transitions, 380 flow [2025-01-09 21:22:57,751 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) [2025-01-09 21:22:57,751 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:57,751 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] [2025-01-09 21:22:57,759 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 21:22:57,956 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 [2025-01-09 21:22:57,956 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:22:57,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:57,957 INFO L85 PathProgramCache]: Analyzing trace with hash 736217732, now seen corresponding path program 2 times [2025-01-09 21:22:57,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:57,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278135520] [2025-01-09 21:22:57,957 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:22:57,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:57,976 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 100 statements into 2 equivalence classes. [2025-01-09 21:22:57,984 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 85 of 100 statements. [2025-01-09 21:22:57,984 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:22:57,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:58,546 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-09 21:22:58,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:58,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278135520] [2025-01-09 21:22:58,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278135520] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:58,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:58,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:22:58,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971440204] [2025-01-09 21:22:58,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:58,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:22:58,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:58,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:22:58,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:22:58,783 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 160 [2025-01-09 21:22:58,784 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) [2025-01-09 21:22:58,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:58,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 160 [2025-01-09 21:22:58,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:59,102 INFO L124 PetriNetUnfolderBase]: 285/1089 cut-off events. [2025-01-09 21:22:59,102 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-01-09 21:22:59,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1742 conditions, 1089 events. 285/1089 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 6325 event pairs, 68 based on Foata normal form. 0/1043 useless extension candidates. Maximal degree in co-relation 1628. Up to 287 conditions per place. [2025-01-09 21:22:59,112 INFO L140 encePairwiseOnDemand]: 138/160 looper letters, 98 selfloop transitions, 42 changer transitions 0/276 dead transitions. [2025-01-09 21:22:59,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 276 transitions, 880 flow [2025-01-09 21:22:59,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:22:59,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:22:59,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 922 transitions. [2025-01-09 21:22:59,115 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9604166666666667 [2025-01-09 21:22:59,116 INFO L175 Difference]: Start difference. First operand has 174 places, 166 transitions, 380 flow. Second operand 6 states and 922 transitions. [2025-01-09 21:22:59,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 276 transitions, 880 flow [2025-01-09 21:22:59,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 276 transitions, 874 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-01-09 21:22:59,122 INFO L231 Difference]: Finished difference. Result has 183 places, 212 transitions, 690 flow [2025-01-09 21:22:59,123 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} [2025-01-09 21:22:59,123 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 21 predicate places. [2025-01-09 21:22:59,123 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 212 transitions, 690 flow [2025-01-09 21:22:59,124 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) [2025-01-09 21:22:59,124 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:59,124 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] [2025-01-09 21:22:59,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 21:22:59,124 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:22:59,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:59,125 INFO L85 PathProgramCache]: Analyzing trace with hash 811982214, now seen corresponding path program 1 times [2025-01-09 21:22:59,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:59,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138497544] [2025-01-09 21:22:59,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:59,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:59,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-01-09 21:22:59,154 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-01-09 21:22:59,155 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:59,155 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:59,300 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:59,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:59,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138497544] [2025-01-09 21:22:59,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138497544] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 21:22:59,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110372359] [2025-01-09 21:22:59,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:59,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:22:59,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:22:59,305 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) [2025-01-09 21:22:59,306 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 [2025-01-09 21:22:59,358 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-01-09 21:22:59,384 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-01-09 21:22:59,384 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:59,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:59,385 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 21:22:59,387 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:22:59,441 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:59,441 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 21:22:59,539 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:59,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110372359] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 21:22:59,539 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 21:22:59,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-01-09 21:22:59,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582295752] [2025-01-09 21:22:59,539 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 21:22:59,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-09 21:22:59,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:59,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-09 21:22:59,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-01-09 21:22:59,565 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-01-09 21:22:59,568 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) [2025-01-09 21:22:59,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:59,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-01-09 21:22:59,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:59,789 INFO L124 PetriNetUnfolderBase]: 127/838 cut-off events. [2025-01-09 21:22:59,789 INFO L125 PetriNetUnfolderBase]: For 135/150 co-relation queries the response was YES. [2025-01-09 21:22:59,791 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 4661 event pairs, 45 based on Foata normal form. 4/822 useless extension candidates. Maximal degree in co-relation 1359. Up to 132 conditions per place. [2025-01-09 21:22:59,793 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 20 selfloop transitions, 21 changer transitions 0/230 dead transitions. [2025-01-09 21:22:59,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 230 transitions, 860 flow [2025-01-09 21:22:59,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-09 21:22:59,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-01-09 21:22:59,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3069 transitions. [2025-01-09 21:22:59,797 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9133928571428571 [2025-01-09 21:22:59,797 INFO L175 Difference]: Start difference. First operand has 183 places, 212 transitions, 690 flow. Second operand 21 states and 3069 transitions. [2025-01-09 21:22:59,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 230 transitions, 860 flow [2025-01-09 21:22:59,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 230 transitions, 860 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:22:59,806 INFO L231 Difference]: Finished difference. Result has 208 places, 225 transitions, 820 flow [2025-01-09 21:22:59,806 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} [2025-01-09 21:22:59,807 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 46 predicate places. [2025-01-09 21:22:59,807 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 225 transitions, 820 flow [2025-01-09 21:22:59,809 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) [2025-01-09 21:22:59,809 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:59,809 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] [2025-01-09 21:22:59,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 21:23:00,009 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 [2025-01-09 21:23:00,010 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:23:00,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:00,010 INFO L85 PathProgramCache]: Analyzing trace with hash -176528954, now seen corresponding path program 2 times [2025-01-09 21:23:00,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:00,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468418941] [2025-01-09 21:23:00,011 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:23:00,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:00,025 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 121 statements into 2 equivalence classes. [2025-01-09 21:23:00,033 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 86 of 121 statements. [2025-01-09 21:23:00,033 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:23:00,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:00,303 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-01-09 21:23:00,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:00,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468418941] [2025-01-09 21:23:00,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468418941] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:00,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:00,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:23:00,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096465981] [2025-01-09 21:23:00,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:00,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:23:00,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:00,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:23:00,305 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:23:00,574 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 160 [2025-01-09 21:23:00,575 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) [2025-01-09 21:23:00,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:00,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 160 [2025-01-09 21:23:00,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:00,694 INFO L124 PetriNetUnfolderBase]: 141/900 cut-off events. [2025-01-09 21:23:00,695 INFO L125 PetriNetUnfolderBase]: For 146/168 co-relation queries the response was YES. [2025-01-09 21:23:00,697 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 5134 event pairs, 49 based on Foata normal form. 3/880 useless extension candidates. Maximal degree in co-relation 1444. Up to 129 conditions per place. [2025-01-09 21:23:00,701 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 21 selfloop transitions, 5 changer transitions 0/232 dead transitions. [2025-01-09 21:23:00,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 232 transitions, 886 flow [2025-01-09 21:23:00,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:23:00,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:23:00,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 873 transitions. [2025-01-09 21:23:00,703 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.909375 [2025-01-09 21:23:00,703 INFO L175 Difference]: Start difference. First operand has 208 places, 225 transitions, 820 flow. Second operand 6 states and 873 transitions. [2025-01-09 21:23:00,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 232 transitions, 886 flow [2025-01-09 21:23:00,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 232 transitions, 862 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-01-09 21:23:00,708 INFO L231 Difference]: Finished difference. Result has 206 places, 224 transitions, 804 flow [2025-01-09 21:23:00,709 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} [2025-01-09 21:23:00,710 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 44 predicate places. [2025-01-09 21:23:00,711 INFO L471 AbstractCegarLoop]: Abstraction has has 206 places, 224 transitions, 804 flow [2025-01-09 21:23:00,711 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) [2025-01-09 21:23:00,711 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:00,711 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] [2025-01-09 21:23:00,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 21:23:00,712 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:23:00,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:00,712 INFO L85 PathProgramCache]: Analyzing trace with hash -528788407, now seen corresponding path program 1 times [2025-01-09 21:23:00,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:00,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059367068] [2025-01-09 21:23:00,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:23:00,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:00,724 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-01-09 21:23:00,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-01-09 21:23:00,734 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:23:00,734 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:00,990 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:23:00,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:00,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059367068] [2025-01-09 21:23:00,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059367068] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 21:23:00,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629106065] [2025-01-09 21:23:00,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:23:00,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:23:00,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:23:00,992 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) [2025-01-09 21:23:00,994 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 [2025-01-09 21:23:01,036 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-01-09 21:23:01,064 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-01-09 21:23:01,064 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:23:01,064 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:01,065 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-09 21:23:01,067 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:23:01,136 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:23:01,137 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 21:23:01,308 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:23:01,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629106065] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 21:23:01,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 21:23:01,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-01-09 21:23:01,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965540383] [2025-01-09 21:23:01,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 21:23:01,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-01-09 21:23:01,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:01,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-01-09 21:23:01,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-01-09 21:23:01,339 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-01-09 21:23:01,342 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) [2025-01-09 21:23:01,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:01,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-01-09 21:23:01,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:01,662 INFO L124 PetriNetUnfolderBase]: 127/852 cut-off events. [2025-01-09 21:23:01,662 INFO L125 PetriNetUnfolderBase]: For 252/267 co-relation queries the response was YES. [2025-01-09 21:23:01,665 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 4651 event pairs, 45 based on Foata normal form. 3/836 useless extension candidates. Maximal degree in co-relation 1370. Up to 132 conditions per place. [2025-01-09 21:23:01,667 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 23 selfloop transitions, 30 changer transitions 0/241 dead transitions. [2025-01-09 21:23:01,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 241 transitions, 1032 flow [2025-01-09 21:23:01,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-01-09 21:23:01,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-01-09 21:23:01,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4376 transitions. [2025-01-09 21:23:01,673 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9116666666666666 [2025-01-09 21:23:01,673 INFO L175 Difference]: Start difference. First operand has 206 places, 224 transitions, 804 flow. Second operand 30 states and 4376 transitions. [2025-01-09 21:23:01,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 241 transitions, 1032 flow [2025-01-09 21:23:01,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 241 transitions, 1022 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-01-09 21:23:01,678 INFO L231 Difference]: Finished difference. Result has 234 places, 234 transitions, 946 flow [2025-01-09 21:23:01,678 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} [2025-01-09 21:23:01,679 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 72 predicate places. [2025-01-09 21:23:01,679 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 234 transitions, 946 flow [2025-01-09 21:23:01,680 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) [2025-01-09 21:23:01,680 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:01,680 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] [2025-01-09 21:23:01,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 21:23:01,885 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 [2025-01-09 21:23:01,885 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:23:01,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:01,886 INFO L85 PathProgramCache]: Analyzing trace with hash -829082292, now seen corresponding path program 2 times [2025-01-09 21:23:01,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:01,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477167041] [2025-01-09 21:23:01,886 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:23:01,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:01,896 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 143 statements into 2 equivalence classes. [2025-01-09 21:23:01,899 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 93 of 143 statements. [2025-01-09 21:23:01,899 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:23:01,899 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:02,127 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-01-09 21:23:02,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:02,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477167041] [2025-01-09 21:23:02,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477167041] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:02,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:02,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:23:02,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521443627] [2025-01-09 21:23:02,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:02,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:23:02,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:02,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:23:02,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:23:02,329 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 160 [2025-01-09 21:23:02,330 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) [2025-01-09 21:23:02,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:02,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 160 [2025-01-09 21:23:02,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:02,594 INFO L124 PetriNetUnfolderBase]: 445/1510 cut-off events. [2025-01-09 21:23:02,594 INFO L125 PetriNetUnfolderBase]: For 726/760 co-relation queries the response was YES. [2025-01-09 21:23:02,598 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 9445 event pairs, 117 based on Foata normal form. 24/1510 useless extension candidates. Maximal degree in co-relation 3398. Up to 640 conditions per place. [2025-01-09 21:23:02,604 INFO L140 encePairwiseOnDemand]: 143/160 looper letters, 109 selfloop transitions, 53 changer transitions 6/325 dead transitions. [2025-01-09 21:23:02,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 325 transitions, 1650 flow [2025-01-09 21:23:02,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:23:02,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:23:02,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 882 transitions. [2025-01-09 21:23:02,606 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.91875 [2025-01-09 21:23:02,606 INFO L175 Difference]: Start difference. First operand has 234 places, 234 transitions, 946 flow. Second operand 6 states and 882 transitions. [2025-01-09 21:23:02,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 325 transitions, 1650 flow [2025-01-09 21:23:02,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 325 transitions, 1604 flow, removed 5 selfloop flow, removed 18 redundant places. [2025-01-09 21:23:02,615 INFO L231 Difference]: Finished difference. Result has 226 places, 285 transitions, 1406 flow [2025-01-09 21:23:02,616 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} [2025-01-09 21:23:02,618 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 64 predicate places. [2025-01-09 21:23:02,618 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 285 transitions, 1406 flow [2025-01-09 21:23:02,618 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) [2025-01-09 21:23:02,618 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:02,619 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] [2025-01-09 21:23:02,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 21:23:02,619 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:23:02,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:02,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1653465511, now seen corresponding path program 1 times [2025-01-09 21:23:02,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:02,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480365431] [2025-01-09 21:23:02,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:23:02,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:02,634 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-01-09 21:23:02,650 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-01-09 21:23:02,650 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:23:02,650 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:02,961 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2025-01-09 21:23:02,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:02,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480365431] [2025-01-09 21:23:02,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480365431] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:02,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:02,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:23:02,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094522004] [2025-01-09 21:23:02,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:02,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:23:02,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:02,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:23:02,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:23:03,232 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 160 [2025-01-09 21:23:03,233 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) [2025-01-09 21:23:03,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:03,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 160 [2025-01-09 21:23:03,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:03,393 INFO L124 PetriNetUnfolderBase]: 255/1247 cut-off events. [2025-01-09 21:23:03,393 INFO L125 PetriNetUnfolderBase]: For 1032/1105 co-relation queries the response was YES. [2025-01-09 21:23:03,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3042 conditions, 1247 events. 255/1247 cut-off events. For 1032/1105 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7957 event pairs, 57 based on Foata normal form. 9/1235 useless extension candidates. Maximal degree in co-relation 2783. Up to 215 conditions per place. [2025-01-09 21:23:03,400 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 25 selfloop transitions, 5 changer transitions 0/292 dead transitions. [2025-01-09 21:23:03,400 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 292 transitions, 1480 flow [2025-01-09 21:23:03,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:23:03,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:23:03,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 853 transitions. [2025-01-09 21:23:03,402 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8885416666666667 [2025-01-09 21:23:03,402 INFO L175 Difference]: Start difference. First operand has 226 places, 285 transitions, 1406 flow. Second operand 6 states and 853 transitions. [2025-01-09 21:23:03,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 292 transitions, 1480 flow [2025-01-09 21:23:03,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 292 transitions, 1472 flow, removed 4 selfloop flow, removed 0 redundant places. [2025-01-09 21:23:03,411 INFO L231 Difference]: Finished difference. Result has 230 places, 284 transitions, 1406 flow [2025-01-09 21:23:03,411 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} [2025-01-09 21:23:03,412 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 68 predicate places. [2025-01-09 21:23:03,412 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 284 transitions, 1406 flow [2025-01-09 21:23:03,412 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) [2025-01-09 21:23:03,412 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:03,412 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] [2025-01-09 21:23:03,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 21:23:03,413 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:23:03,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:03,413 INFO L85 PathProgramCache]: Analyzing trace with hash 459282238, now seen corresponding path program 1 times [2025-01-09 21:23:03,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:03,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748025113] [2025-01-09 21:23:03,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:23:03,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:03,426 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-01-09 21:23:03,440 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-01-09 21:23:03,440 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:23:03,440 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:03,716 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2025-01-09 21:23:03,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:03,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748025113] [2025-01-09 21:23:03,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748025113] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:03,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:03,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:23:03,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445793550] [2025-01-09 21:23:03,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:03,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:23:03,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:03,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:23:03,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:23:03,929 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 160 [2025-01-09 21:23:03,929 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) [2025-01-09 21:23:03,929 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:03,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 160 [2025-01-09 21:23:03,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:04,208 INFO L124 PetriNetUnfolderBase]: 594/1878 cut-off events. [2025-01-09 21:23:04,208 INFO L125 PetriNetUnfolderBase]: For 2540/2585 co-relation queries the response was YES. [2025-01-09 21:23:04,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5684 conditions, 1878 events. 594/1878 cut-off events. For 2540/2585 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 12330 event pairs, 150 based on Foata normal form. 25/1870 useless extension candidates. Maximal degree in co-relation 5424. Up to 891 conditions per place. [2025-01-09 21:23:04,218 INFO L140 encePairwiseOnDemand]: 143/160 looper letters, 122 selfloop transitions, 58 changer transitions 39/376 dead transitions. [2025-01-09 21:23:04,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 376 transitions, 2368 flow [2025-01-09 21:23:04,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:23:04,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:23:04,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 864 transitions. [2025-01-09 21:23:04,221 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9 [2025-01-09 21:23:04,221 INFO L175 Difference]: Start difference. First operand has 230 places, 284 transitions, 1406 flow. Second operand 6 states and 864 transitions. [2025-01-09 21:23:04,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 376 transitions, 2368 flow [2025-01-09 21:23:04,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 376 transitions, 2358 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-01-09 21:23:04,233 INFO L231 Difference]: Finished difference. Result has 234 places, 311 transitions, 1804 flow [2025-01-09 21:23:04,233 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} [2025-01-09 21:23:04,234 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 72 predicate places. [2025-01-09 21:23:04,234 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 311 transitions, 1804 flow [2025-01-09 21:23:04,234 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) [2025-01-09 21:23:04,234 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:04,235 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] [2025-01-09 21:23:04,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 21:23:04,235 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:23:04,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:04,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1414433471, now seen corresponding path program 1 times [2025-01-09 21:23:04,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:04,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149625027] [2025-01-09 21:23:04,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:23:04,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:04,269 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-01-09 21:23:04,277 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-01-09 21:23:04,277 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:23:04,277 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:04,357 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2025-01-09 21:23:04,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:04,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149625027] [2025-01-09 21:23:04,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149625027] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:04,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:04,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 21:23:04,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513765395] [2025-01-09 21:23:04,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:04,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:23:04,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:04,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:23:04,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:23:04,426 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 160 [2025-01-09 21:23:04,427 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) [2025-01-09 21:23:04,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:04,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 160 [2025-01-09 21:23:04,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:04,457 INFO L124 PetriNetUnfolderBase]: 6/275 cut-off events. [2025-01-09 21:23:04,457 INFO L125 PetriNetUnfolderBase]: For 227/227 co-relation queries the response was YES. [2025-01-09 21:23:04,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 599 conditions, 275 events. 6/275 cut-off events. For 227/227 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 248 event pairs, 0 based on Foata normal form. 2/276 useless extension candidates. Maximal degree in co-relation 441. Up to 23 conditions per place. [2025-01-09 21:23:04,459 INFO L140 encePairwiseOnDemand]: 156/160 looper letters, 0 selfloop transitions, 0 changer transitions 185/185 dead transitions. [2025-01-09 21:23:04,459 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 185 transitions, 738 flow [2025-01-09 21:23:04,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:23:04,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:23:04,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2025-01-09 21:23:04,462 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9708333333333333 [2025-01-09 21:23:04,462 INFO L175 Difference]: Start difference. First operand has 234 places, 311 transitions, 1804 flow. Second operand 3 states and 466 transitions. [2025-01-09 21:23:04,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 185 transitions, 738 flow [2025-01-09 21:23:04,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 185 transitions, 600 flow, removed 30 selfloop flow, removed 29 redundant places. [2025-01-09 21:23:04,466 INFO L231 Difference]: Finished difference. Result has 203 places, 0 transitions, 0 flow [2025-01-09 21:23:04,466 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} [2025-01-09 21:23:04,467 INFO L279 CegarLoopForPetriNet]: 162 programPoint places, 41 predicate places. [2025-01-09 21:23:04,467 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 0 transitions, 0 flow [2025-01-09 21:23:04,468 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) [2025-01-09 21:23:04,469 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2025-01-09 21:23:04,471 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2025-01-09 21:23:04,471 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2025-01-09 21:23:04,471 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2025-01-09 21:23:04,471 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2025-01-09 21:23:04,472 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2025-01-09 21:23:04,472 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2025-01-09 21:23:04,472 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2025-01-09 21:23:04,472 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2025-01-09 21:23:04,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 21:23:04,472 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1] [2025-01-09 21:23:04,476 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-01-09 21:23:04,476 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 21:23:04,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 09:23:04 BasicIcfg [2025-01-09 21:23:04,482 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 21:23:04,483 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 21:23:04,483 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 21:23:04,483 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 21:23:04,484 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:22:56" (3/4) ... [2025-01-09 21:23:04,485 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 21:23:04,487 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-01-09 21:23:04,491 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-01-09 21:23:04,492 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-01-09 21:23:04,492 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-01-09 21:23:04,549 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 21:23:04,549 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 21:23:04,549 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 21:23:04,550 INFO L158 Benchmark]: Toolchain (without parser) took 8824.31ms. Allocated memory was 142.6MB in the beginning and 520.1MB in the end (delta: 377.5MB). Free memory was 110.9MB in the beginning and 391.6MB in the end (delta: -280.7MB). Peak memory consumption was 96.9MB. Max. memory is 16.1GB. [2025-01-09 21:23:04,550 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:23:04,550 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.50ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 89.7MB in the end (delta: 21.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 21:23:04,550 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.74ms. Allocated memory is still 142.6MB. Free memory was 89.2MB in the beginning and 86.9MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:23:04,550 INFO L158 Benchmark]: Boogie Preprocessor took 21.42ms. Allocated memory is still 142.6MB. Free memory was 86.9MB in the beginning and 85.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 21:23:04,550 INFO L158 Benchmark]: RCFGBuilder took 380.18ms. Allocated memory is still 142.6MB. Free memory was 85.1MB in the beginning and 63.6MB in the end (delta: 21.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 21:23:04,550 INFO L158 Benchmark]: TraceAbstraction took 8018.53ms. Allocated memory was 142.6MB in the beginning and 520.1MB in the end (delta: 377.5MB). Free memory was 63.1MB in the beginning and 395.9MB in the end (delta: -332.7MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2025-01-09 21:23:04,551 INFO L158 Benchmark]: Witness Printer took 66.26ms. Allocated memory is still 520.1MB. Free memory was 395.9MB in the beginning and 391.6MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 21:23:04,551 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory is still 123.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.50ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 89.7MB in the end (delta: 21.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.74ms. Allocated memory is still 142.6MB. Free memory was 89.2MB in the beginning and 86.9MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.42ms. Allocated memory is still 142.6MB. Free memory was 86.9MB in the beginning and 85.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 380.18ms. Allocated memory is still 142.6MB. Free memory was 85.1MB in the beginning and 63.6MB in the end (delta: 21.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 8018.53ms. Allocated memory was 142.6MB in the beginning and 520.1MB in the end (delta: 377.5MB). Free memory was 63.1MB in the beginning and 395.9MB in the end (delta: -332.7MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * Witness Printer took 66.26ms. Allocated memory is still 520.1MB. Free memory was 395.9MB in the beginning and 391.6MB in the end (delta: 4.3MB). 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: 7.9s, OverallIterations: 10, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1127 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 731 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 369 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2532 IncrementalHoareTripleChecker+Invalid, 2901 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 369 mSolverCounterUnsat, 16 mSDtfsCounter, 2532 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, 0.8s 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, 0.2s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 1566 NumberOfCodeBlocks, 1466 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1869 ConstructedInterpolants, 0 QuantifiedInterpolants, 2680 SizeOfPredicates, 22 NumberOfNonLiveVariables, 721 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 1073/1466 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! [2025-01-09 21:23:04,566 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