./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.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_03-funloop_simple.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 8259c4061eb15e4ed63bc06f98acbb6dc3f9862bbe262b5cabdd3ad4658d3239 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:22:33,874 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:22:33,910 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-01-09 21:22:33,914 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:22:33,914 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:22:33,929 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:22:33,929 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:22:33,929 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:22:33,930 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:22:33,930 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:22:33,930 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:22:33,930 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:22:33,930 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:22:33,930 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:22:33,930 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:22:33,930 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:22:33,930 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:22:33,930 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:22:33,931 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:22:33,931 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:22:33,931 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:22:33,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:22:33,931 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-01-09 21:22:33,931 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:22:33,931 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:22:33,931 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:22:33,931 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:22:33,931 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:22:33,931 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:22:33,932 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:22:33,932 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:22:33,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:22:33,932 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:22:33,932 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:22:33,932 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:22:33,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:22:33,932 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:22:33,932 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:22:33,932 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 21:22:33,932 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 21:22:33,933 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:22:33,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:22:33,933 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:22:33,933 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:22:33,933 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:22:33,933 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:22:33,933 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 -> 8259c4061eb15e4ed63bc06f98acbb6dc3f9862bbe262b5cabdd3ad4658d3239 [2025-01-09 21:22:34,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:22:34,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:22:34,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:22:34,135 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:22:34,135 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:22:34,136 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i [2025-01-09 21:22:35,329 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9c5e48499/781af7247e2c441cb400c97e5b5d42b8/FLAGde7d72f28 [2025-01-09 21:22:35,650 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:22:35,650 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_03-funloop_simple.i [2025-01-09 21:22:35,660 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9c5e48499/781af7247e2c441cb400c97e5b5d42b8/FLAGde7d72f28 [2025-01-09 21:22:35,895 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9c5e48499/781af7247e2c441cb400c97e5b5d42b8 [2025-01-09 21:22:35,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:22:35,899 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:22:35,900 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:22:35,901 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:22:35,904 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:22:35,904 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:22:35" (1/1) ... [2025-01-09 21:22:35,905 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38e614eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:35, skipping insertion in model container [2025-01-09 21:22:35,905 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:22:35" (1/1) ... [2025-01-09 21:22:35,936 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:22:36,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:22:36,250 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:22:36,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:22:36,406 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:22:36,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:36 WrapperNode [2025-01-09 21:22:36,409 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:22:36,410 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:22:36,410 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:22:36,410 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:22:36,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:36" (1/1) ... [2025-01-09 21:22:36,447 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:36" (1/1) ... [2025-01-09 21:22:36,496 INFO L138 Inliner]: procedures = 263, calls = 72, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 164 [2025-01-09 21:22:36,496 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:22:36,501 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:22:36,501 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:22:36,501 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:22:36,512 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:36" (1/1) ... [2025-01-09 21:22:36,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:36" (1/1) ... [2025-01-09 21:22:36,520 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:36" (1/1) ... [2025-01-09 21:22:36,527 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:36" (1/1) ... [2025-01-09 21:22:36,540 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:36" (1/1) ... [2025-01-09 21:22:36,541 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:36" (1/1) ... [2025-01-09 21:22:36,543 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:36" (1/1) ... [2025-01-09 21:22:36,544 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:36" (1/1) ... [2025-01-09 21:22:36,544 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:36" (1/1) ... [2025-01-09 21:22:36,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:22:36,546 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:22:36,546 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:22:36,546 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:22:36,547 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:36" (1/1) ... [2025-01-09 21:22:36,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:22:36,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:22:36,571 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 21:22:36,573 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 21:22:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-09 21:22:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-09 21:22:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-09 21:22:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-09 21:22:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:22:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-01-09 21:22:36,588 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-01-09 21:22:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 21:22:36,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:22:36,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:22:36,589 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 21:22:36,671 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:22:36,672 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:22:36,885 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 21:22:36,885 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:22:36,903 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:22:36,903 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 21:22:36,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:22:36 BoogieIcfgContainer [2025-01-09 21:22:36,903 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:22:36,908 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:22:36,908 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:22:36,911 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:22:36,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:22:35" (1/3) ... [2025-01-09 21:22:36,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d7fee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:22:36, skipping insertion in model container [2025-01-09 21:22:36,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:36" (2/3) ... [2025-01-09 21:22:36,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36d7fee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:22:36, skipping insertion in model container [2025-01-09 21:22:36,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:22:36" (3/3) ... [2025-01-09 21:22:36,913 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_03-funloop_simple.i [2025-01-09 21:22:36,922 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:22:36,924 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_03-funloop_simple.i that has 2 procedures, 176 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2025-01-09 21:22:36,924 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 21:22:36,964 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:22:36,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 178 transitions, 360 flow [2025-01-09 21:22:37,054 INFO L124 PetriNetUnfolderBase]: 3/177 cut-off events. [2025-01-09 21:22:37,056 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:22:37,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 177 events. 3/177 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 208 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2025-01-09 21:22:37,060 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 178 transitions, 360 flow [2025-01-09 21:22:37,062 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 178 places, 177 transitions, 357 flow [2025-01-09 21:22:37,067 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:22:37,074 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;@26accc27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:22:37,074 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-01-09 21:22:37,097 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:22:37,098 INFO L124 PetriNetUnfolderBase]: 1/108 cut-off events. [2025-01-09 21:22:37,098 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:22:37,098 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:37,098 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 21:22:37,099 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:22:37,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:37,103 INFO L85 PathProgramCache]: Analyzing trace with hash -53140344, now seen corresponding path program 1 times [2025-01-09 21:22:37,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:37,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961421627] [2025-01-09 21:22:37,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:37,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:37,169 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-01-09 21:22:37,189 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-01-09 21:22:37,189 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:37,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:37,372 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 21:22:37,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:37,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961421627] [2025-01-09 21:22:37,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961421627] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:37,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:37,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 21:22:37,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428704723] [2025-01-09 21:22:37,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:37,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:22:37,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:37,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:22:37,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:22:37,419 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 178 [2025-01-09 21:22:37,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 177 transitions, 357 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 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 21:22:37,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:37,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 178 [2025-01-09 21:22:37,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:37,521 INFO L124 PetriNetUnfolderBase]: 14/335 cut-off events. [2025-01-09 21:22:37,522 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:22:37,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 335 events. 14/335 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 777 event pairs, 6 based on Foata normal form. 1/313 useless extension candidates. Maximal degree in co-relation 273. Up to 29 conditions per place. [2025-01-09 21:22:37,527 INFO L140 encePairwiseOnDemand]: 175/178 looper letters, 10 selfloop transitions, 2 changer transitions 0/178 dead transitions. [2025-01-09 21:22:37,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 178 transitions, 383 flow [2025-01-09 21:22:37,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:22:37,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:22:37,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 514 transitions. [2025-01-09 21:22:37,541 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9625468164794008 [2025-01-09 21:22:37,543 INFO L175 Difference]: Start difference. First operand has 178 places, 177 transitions, 357 flow. Second operand 3 states and 514 transitions. [2025-01-09 21:22:37,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 178 transitions, 383 flow [2025-01-09 21:22:37,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 178 transitions, 382 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-09 21:22:37,558 INFO L231 Difference]: Finished difference. Result has 180 places, 178 transitions, 368 flow [2025-01-09 21:22:37,560 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=180, PETRI_TRANSITIONS=178} [2025-01-09 21:22:37,563 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 2 predicate places. [2025-01-09 21:22:37,565 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 178 transitions, 368 flow [2025-01-09 21:22:37,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 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 21:22:37,565 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:37,565 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 21:22:37,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 21:22:37,566 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:22:37,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:37,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1544334805, now seen corresponding path program 1 times [2025-01-09 21:22:37,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:37,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086128798] [2025-01-09 21:22:37,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:37,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:37,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-01-09 21:22:37,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-01-09 21:22:37,611 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:37,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:37,753 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 21:22:37,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:37,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086128798] [2025-01-09 21:22:37,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086128798] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 21:22:37,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367407066] [2025-01-09 21:22:37,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:37,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:22:37,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:22:37,756 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 21:22:37,763 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 21:22:37,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-01-09 21:22:37,834 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-01-09 21:22:37,834 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:37,834 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:37,835 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 21:22:37,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:22:37,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-09 21:22:37,855 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:22:37,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367407066] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:37,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 21:22:37,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-01-09 21:22:37,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48912489] [2025-01-09 21:22:37,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:37,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:22:37,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:37,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:22:37,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:22:37,867 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 178 [2025-01-09 21:22:37,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 178 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 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 21:22:37,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:37,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 178 [2025-01-09 21:22:37,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:37,930 INFO L124 PetriNetUnfolderBase]: 29/451 cut-off events. [2025-01-09 21:22:37,930 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:22:37,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 451 events. 29/451 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1510 event pairs, 8 based on Foata normal form. 3/426 useless extension candidates. Maximal degree in co-relation 439. Up to 39 conditions per place. [2025-01-09 21:22:37,933 INFO L140 encePairwiseOnDemand]: 175/178 looper letters, 14 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2025-01-09 21:22:37,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 183 transitions, 410 flow [2025-01-09 21:22:37,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:22:37,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:22:37,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2025-01-09 21:22:37,938 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9700374531835206 [2025-01-09 21:22:37,938 INFO L175 Difference]: Start difference. First operand has 180 places, 178 transitions, 368 flow. Second operand 3 states and 518 transitions. [2025-01-09 21:22:37,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 183 transitions, 410 flow [2025-01-09 21:22:37,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 183 transitions, 408 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-09 21:22:37,940 INFO L231 Difference]: Finished difference. Result has 182 places, 179 transitions, 378 flow [2025-01-09 21:22:37,942 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=182, PETRI_TRANSITIONS=179} [2025-01-09 21:22:37,942 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 4 predicate places. [2025-01-09 21:22:37,942 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 179 transitions, 378 flow [2025-01-09 21:22:37,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.66666666666666) internal successors, (506), 3 states have internal predecessors, (506), 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 21:22:37,943 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:37,944 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, 1, 1, 1, 1, 1] [2025-01-09 21:22:37,952 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 21:22:38,148 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 21:22:38,148 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:22:38,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:38,149 INFO L85 PathProgramCache]: Analyzing trace with hash -585553366, now seen corresponding path program 1 times [2025-01-09 21:22:38,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:38,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996404932] [2025-01-09 21:22:38,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:38,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:38,161 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-01-09 21:22:38,167 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-01-09 21:22:38,168 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:38,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:38,282 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 21:22:38,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:38,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996404932] [2025-01-09 21:22:38,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996404932] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 21:22:38,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133254552] [2025-01-09 21:22:38,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:38,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:22:38,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:22:38,285 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 21:22:38,286 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 21:22:38,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-01-09 21:22:38,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-01-09 21:22:38,352 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:38,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:38,353 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 21:22:38,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:22:38,405 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 21:22:38,408 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 21:22:38,443 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 21:22:38,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133254552] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 21:22:38,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 21:22:38,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-01-09 21:22:38,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309696506] [2025-01-09 21:22:38,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 21:22:38,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 21:22:38,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:38,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 21:22:38,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-01-09 21:22:38,495 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 178 [2025-01-09 21:22:38,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 179 transitions, 378 flow. Second operand has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 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 21:22:38,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:38,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 178 [2025-01-09 21:22:38,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:38,617 INFO L124 PetriNetUnfolderBase]: 15/395 cut-off events. [2025-01-09 21:22:38,617 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:22:38,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 465 conditions, 395 events. 15/395 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1102 event pairs, 10 based on Foata normal form. 2/375 useless extension candidates. Maximal degree in co-relation 355. Up to 34 conditions per place. [2025-01-09 21:22:38,620 INFO L140 encePairwiseOnDemand]: 172/178 looper letters, 14 selfloop transitions, 9 changer transitions 0/187 dead transitions. [2025-01-09 21:22:38,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 187 transitions, 442 flow [2025-01-09 21:22:38,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 21:22:38,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-09 21:22:38,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1501 transitions. [2025-01-09 21:22:38,625 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9369538077403246 [2025-01-09 21:22:38,626 INFO L175 Difference]: Start difference. First operand has 182 places, 179 transitions, 378 flow. Second operand 9 states and 1501 transitions. [2025-01-09 21:22:38,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 187 transitions, 442 flow [2025-01-09 21:22:38,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 187 transitions, 440 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-09 21:22:38,631 INFO L231 Difference]: Finished difference. Result has 192 places, 185 transitions, 426 flow [2025-01-09 21:22:38,632 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=426, PETRI_PLACES=192, PETRI_TRANSITIONS=185} [2025-01-09 21:22:38,632 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 14 predicate places. [2025-01-09 21:22:38,632 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 185 transitions, 426 flow [2025-01-09 21:22:38,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 166.0) internal successors, (1660), 10 states have internal predecessors, (1660), 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 21:22:38,635 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:38,635 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, 1, 1, 1, 1] [2025-01-09 21:22:38,643 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-09 21:22:38,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:22:38,836 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:22:38,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:38,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1958961162, now seen corresponding path program 2 times [2025-01-09 21:22:38,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:38,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892229490] [2025-01-09 21:22:38,838 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:22:38,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:38,849 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 105 statements into 2 equivalence classes. [2025-01-09 21:22:38,869 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 90 of 105 statements. [2025-01-09 21:22:38,869 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:22:38,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:39,327 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 21:22:39,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:39,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892229490] [2025-01-09 21:22:39,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892229490] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:39,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:39,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:22:39,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422248935] [2025-01-09 21:22:39,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:39,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:22:39,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:39,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:22:39,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:22:39,487 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-01-09 21:22:39,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 185 transitions, 426 flow. Second operand has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 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 21:22:39,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:39,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-01-09 21:22:39,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:39,759 INFO L124 PetriNetUnfolderBase]: 355/1812 cut-off events. [2025-01-09 21:22:39,759 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-01-09 21:22:39,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2588 conditions, 1812 events. 355/1812 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 12626 event pairs, 172 based on Foata normal form. 0/1684 useless extension candidates. Maximal degree in co-relation 2476. Up to 583 conditions per place. [2025-01-09 21:22:39,766 INFO L140 encePairwiseOnDemand]: 163/178 looper letters, 34 selfloop transitions, 38 changer transitions 0/230 dead transitions. [2025-01-09 21:22:39,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 230 transitions, 660 flow [2025-01-09 21:22:39,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:22:39,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:22:39,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 979 transitions. [2025-01-09 21:22:39,769 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2025-01-09 21:22:39,769 INFO L175 Difference]: Start difference. First operand has 192 places, 185 transitions, 426 flow. Second operand 6 states and 979 transitions. [2025-01-09 21:22:39,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 230 transitions, 660 flow [2025-01-09 21:22:39,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 230 transitions, 654 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-01-09 21:22:39,773 INFO L231 Difference]: Finished difference. Result has 201 places, 222 transitions, 674 flow [2025-01-09 21:22:39,773 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=674, PETRI_PLACES=201, PETRI_TRANSITIONS=222} [2025-01-09 21:22:39,774 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 23 predicate places. [2025-01-09 21:22:39,774 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 222 transitions, 674 flow [2025-01-09 21:22:39,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 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 21:22:39,775 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:39,775 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, 1, 1, 1, 1] [2025-01-09 21:22:39,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 21:22:39,775 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:22:39,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:39,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1426146911, now seen corresponding path program 1 times [2025-01-09 21:22:39,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:39,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993256087] [2025-01-09 21:22:39,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:39,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:39,784 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-01-09 21:22:39,794 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-01-09 21:22:39,799 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:39,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:39,951 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 21:22:39,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:39,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993256087] [2025-01-09 21:22:39,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993256087] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 21:22:39,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584820545] [2025-01-09 21:22:39,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:39,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:22:39,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:22:39,954 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 21:22:39,955 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 21:22:40,008 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-01-09 21:22:40,031 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-01-09 21:22:40,031 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:40,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:40,033 INFO L256 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 21:22:40,035 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:22:40,067 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 21:22:40,068 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 21:22:40,142 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 21:22:40,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584820545] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 21:22:40,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 21:22:40,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-01-09 21:22:40,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190529954] [2025-01-09 21:22:40,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 21:22:40,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-09 21:22:40,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:40,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-09 21:22:40,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-01-09 21:22:40,169 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 178 [2025-01-09 21:22:40,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 222 transitions, 674 flow. Second operand has 18 states, 18 states have (on average 166.0) internal successors, (2988), 18 states have internal predecessors, (2988), 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 21:22:40,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:40,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 178 [2025-01-09 21:22:40,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:40,419 INFO L124 PetriNetUnfolderBase]: 133/1064 cut-off events. [2025-01-09 21:22:40,419 INFO L125 PetriNetUnfolderBase]: For 104/117 co-relation queries the response was YES. [2025-01-09 21:22:40,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1668 conditions, 1064 events. 133/1064 cut-off events. For 104/117 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 5990 event pairs, 28 based on Foata normal form. 4/1012 useless extension candidates. Maximal degree in co-relation 1479. Up to 177 conditions per place. [2025-01-09 21:22:40,424 INFO L140 encePairwiseOnDemand]: 172/178 looper letters, 18 selfloop transitions, 21 changer transitions 0/240 dead transitions. [2025-01-09 21:22:40,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 240 transitions, 840 flow [2025-01-09 21:22:40,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-09 21:22:40,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-01-09 21:22:40,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3487 transitions. [2025-01-09 21:22:40,429 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9328517924023542 [2025-01-09 21:22:40,429 INFO L175 Difference]: Start difference. First operand has 201 places, 222 transitions, 674 flow. Second operand 21 states and 3487 transitions. [2025-01-09 21:22:40,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 240 transitions, 840 flow [2025-01-09 21:22:40,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 240 transitions, 840 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:22:40,434 INFO L231 Difference]: Finished difference. Result has 226 places, 235 transitions, 804 flow [2025-01-09 21:22:40,435 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=804, PETRI_PLACES=226, PETRI_TRANSITIONS=235} [2025-01-09 21:22:40,435 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 48 predicate places. [2025-01-09 21:22:40,435 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 235 transitions, 804 flow [2025-01-09 21:22:40,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 166.0) internal successors, (2988), 18 states have internal predecessors, (2988), 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 21:22:40,437 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:40,437 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] [2025-01-09 21:22:40,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-09 21:22:40,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:22:40,641 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:22:40,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:40,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1352542751, now seen corresponding path program 2 times [2025-01-09 21:22:40,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:40,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379557500] [2025-01-09 21:22:40,643 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:22:40,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:40,655 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 125 statements into 2 equivalence classes. [2025-01-09 21:22:40,659 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 90 of 125 statements. [2025-01-09 21:22:40,659 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:22:40,659 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:40,982 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 21:22:40,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:40,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379557500] [2025-01-09 21:22:40,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379557500] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:40,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:40,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:22:40,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512782483] [2025-01-09 21:22:40,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:40,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:22:40,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:40,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:22:40,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:22:41,121 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-01-09 21:22:41,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 235 transitions, 804 flow. Second operand has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 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 21:22:41,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:41,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-01-09 21:22:41,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:41,362 INFO L124 PetriNetUnfolderBase]: 451/2077 cut-off events. [2025-01-09 21:22:41,362 INFO L125 PetriNetUnfolderBase]: For 482/534 co-relation queries the response was YES. [2025-01-09 21:22:41,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3738 conditions, 2077 events. 451/2077 cut-off events. For 482/534 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 14678 event pairs, 153 based on Foata normal form. 13/1992 useless extension candidates. Maximal degree in co-relation 3542. Up to 712 conditions per place. [2025-01-09 21:22:41,369 INFO L140 encePairwiseOnDemand]: 167/178 looper letters, 67 selfloop transitions, 30 changer transitions 0/272 dead transitions. [2025-01-09 21:22:41,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 272 transitions, 1114 flow [2025-01-09 21:22:41,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:22:41,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:22:41,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 963 transitions. [2025-01-09 21:22:41,371 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.901685393258427 [2025-01-09 21:22:41,371 INFO L175 Difference]: Start difference. First operand has 226 places, 235 transitions, 804 flow. Second operand 6 states and 963 transitions. [2025-01-09 21:22:41,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 272 transitions, 1114 flow [2025-01-09 21:22:41,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 272 transitions, 1090 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-01-09 21:22:41,376 INFO L231 Difference]: Finished difference. Result has 230 places, 264 transitions, 1030 flow [2025-01-09 21:22:41,377 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=780, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1030, PETRI_PLACES=230, PETRI_TRANSITIONS=264} [2025-01-09 21:22:41,377 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 52 predicate places. [2025-01-09 21:22:41,377 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 264 transitions, 1030 flow [2025-01-09 21:22:41,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 152.5) internal successors, (915), 6 states have internal predecessors, (915), 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 21:22:41,378 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:41,378 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, 1, 1, 1, 1, 1] [2025-01-09 21:22:41,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 21:22:41,378 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:22:41,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:41,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1781974193, now seen corresponding path program 1 times [2025-01-09 21:22:41,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:41,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733700758] [2025-01-09 21:22:41,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:41,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:41,388 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-01-09 21:22:41,395 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-01-09 21:22:41,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:41,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:41,628 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 21:22:41,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:41,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733700758] [2025-01-09 21:22:41,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733700758] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 21:22:41,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476451632] [2025-01-09 21:22:41,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:41,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:22:41,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:22:41,631 INFO L229 MonitoredProcess]: Starting monitored process 5 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 21:22:41,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 21:22:41,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-01-09 21:22:41,709 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-01-09 21:22:41,709 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:41,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:41,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-09 21:22:41,713 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:22:41,852 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 21:22:41,853 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 21:22:42,038 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 21:22:42,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476451632] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 21:22:42,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 21:22:42,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-01-09 21:22:42,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978658493] [2025-01-09 21:22:42,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 21:22:42,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-01-09 21:22:42,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:42,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-01-09 21:22:42,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-01-09 21:22:42,102 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 178 [2025-01-09 21:22:42,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 264 transitions, 1030 flow. Second operand has 23 states, 23 states have (on average 166.08695652173913) internal successors, (3820), 23 states have internal predecessors, (3820), 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 21:22:42,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:42,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 178 [2025-01-09 21:22:42,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:42,532 INFO L124 PetriNetUnfolderBase]: 236/1582 cut-off events. [2025-01-09 21:22:42,532 INFO L125 PetriNetUnfolderBase]: For 548/581 co-relation queries the response was YES. [2025-01-09 21:22:42,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2913 conditions, 1582 events. 236/1582 cut-off events. For 548/581 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10156 event pairs, 35 based on Foata normal form. 13/1528 useless extension candidates. Maximal degree in co-relation 2636. Up to 221 conditions per place. [2025-01-09 21:22:42,541 INFO L140 encePairwiseOnDemand]: 172/178 looper letters, 21 selfloop transitions, 30 changer transitions 0/281 dead transitions. [2025-01-09 21:22:42,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 281 transitions, 1254 flow [2025-01-09 21:22:42,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-01-09 21:22:42,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-01-09 21:22:42,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4974 transitions. [2025-01-09 21:22:42,549 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9314606741573034 [2025-01-09 21:22:42,549 INFO L175 Difference]: Start difference. First operand has 230 places, 264 transitions, 1030 flow. Second operand 30 states and 4974 transitions. [2025-01-09 21:22:42,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 281 transitions, 1254 flow [2025-01-09 21:22:42,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 281 transitions, 1254 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:22:42,559 INFO L231 Difference]: Finished difference. Result has 263 places, 274 transitions, 1182 flow [2025-01-09 21:22:42,559 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1182, PETRI_PLACES=263, PETRI_TRANSITIONS=274} [2025-01-09 21:22:42,561 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 85 predicate places. [2025-01-09 21:22:42,561 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 274 transitions, 1182 flow [2025-01-09 21:22:42,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 166.08695652173913) internal successors, (3820), 23 states have internal predecessors, (3820), 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 21:22:42,562 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:42,563 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] [2025-01-09 21:22:42,569 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-09 21:22:42,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2025-01-09 21:22:42,767 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:22:42,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:42,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1336322798, now seen corresponding path program 2 times [2025-01-09 21:22:42,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:42,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296326692] [2025-01-09 21:22:42,768 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:22:42,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:42,810 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 148 statements into 2 equivalence classes. [2025-01-09 21:22:42,817 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 98 of 148 statements. [2025-01-09 21:22:42,817 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:22:42,817 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:43,096 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 21:22:43,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:43,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296326692] [2025-01-09 21:22:43,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296326692] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:43,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:43,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:22:43,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921236543] [2025-01-09 21:22:43,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:43,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:22:43,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:43,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:22:43,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:22:43,232 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 178 [2025-01-09 21:22:43,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 274 transitions, 1182 flow. Second operand has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 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 21:22:43,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:43,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 178 [2025-01-09 21:22:43,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:43,757 INFO L124 PetriNetUnfolderBase]: 1000/3561 cut-off events. [2025-01-09 21:22:43,757 INFO L125 PetriNetUnfolderBase]: For 1866/1935 co-relation queries the response was YES. [2025-01-09 21:22:43,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7941 conditions, 3561 events. 1000/3561 cut-off events. For 1866/1935 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 26708 event pairs, 304 based on Foata normal form. 18/3379 useless extension candidates. Maximal degree in co-relation 7663. Up to 1732 conditions per place. [2025-01-09 21:22:43,776 INFO L140 encePairwiseOnDemand]: 155/178 looper letters, 100 selfloop transitions, 89 changer transitions 0/361 dead transitions. [2025-01-09 21:22:43,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 361 transitions, 1900 flow [2025-01-09 21:22:43,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:22:43,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:22:43,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 961 transitions. [2025-01-09 21:22:43,778 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.899812734082397 [2025-01-09 21:22:43,778 INFO L175 Difference]: Start difference. First operand has 263 places, 274 transitions, 1182 flow. Second operand 6 states and 961 transitions. [2025-01-09 21:22:43,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 361 transitions, 1900 flow [2025-01-09 21:22:43,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 361 transitions, 1854 flow, removed 5 selfloop flow, removed 18 redundant places. [2025-01-09 21:22:43,791 INFO L231 Difference]: Finished difference. Result has 255 places, 353 transitions, 1874 flow [2025-01-09 21:22:43,792 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1874, PETRI_PLACES=255, PETRI_TRANSITIONS=353} [2025-01-09 21:22:43,793 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 77 predicate places. [2025-01-09 21:22:43,794 INFO L471 AbstractCegarLoop]: Abstraction has has 255 places, 353 transitions, 1874 flow [2025-01-09 21:22:43,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 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 21:22:43,794 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:43,795 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] [2025-01-09 21:22:43,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 21:22:43,795 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:22:43,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:43,796 INFO L85 PathProgramCache]: Analyzing trace with hash -677085184, now seen corresponding path program 1 times [2025-01-09 21:22:43,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:43,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648872001] [2025-01-09 21:22:43,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:43,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:43,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-01-09 21:22:43,830 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-01-09 21:22:43,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:43,831 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:44,208 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 21:22:44,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:44,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648872001] [2025-01-09 21:22:44,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648872001] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:44,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:44,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:22:44,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391911339] [2025-01-09 21:22:44,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:44,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:22:44,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:44,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:22:44,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:22:44,307 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 178 [2025-01-09 21:22:44,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 353 transitions, 1874 flow. Second operand has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 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 21:22:44,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:44,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 178 [2025-01-09 21:22:44,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:44,864 INFO L124 PetriNetUnfolderBase]: 1203/4090 cut-off events. [2025-01-09 21:22:44,864 INFO L125 PetriNetUnfolderBase]: For 4618/4742 co-relation queries the response was YES. [2025-01-09 21:22:44,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10932 conditions, 4090 events. 1203/4090 cut-off events. For 4618/4742 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 30754 event pairs, 276 based on Foata normal form. 21/3965 useless extension candidates. Maximal degree in co-relation 10671. Up to 1975 conditions per place. [2025-01-09 21:22:44,892 INFO L140 encePairwiseOnDemand]: 163/178 looper letters, 169 selfloop transitions, 71 changer transitions 0/414 dead transitions. [2025-01-09 21:22:44,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 414 transitions, 2708 flow [2025-01-09 21:22:44,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:22:44,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:22:44,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 929 transitions. [2025-01-09 21:22:44,896 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8698501872659176 [2025-01-09 21:22:44,896 INFO L175 Difference]: Start difference. First operand has 255 places, 353 transitions, 1874 flow. Second operand 6 states and 929 transitions. [2025-01-09 21:22:44,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 414 transitions, 2708 flow [2025-01-09 21:22:44,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 414 transitions, 2612 flow, removed 48 selfloop flow, removed 0 redundant places. [2025-01-09 21:22:44,924 INFO L231 Difference]: Finished difference. Result has 265 places, 406 transitions, 2454 flow [2025-01-09 21:22:44,924 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=1784, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2454, PETRI_PLACES=265, PETRI_TRANSITIONS=406} [2025-01-09 21:22:44,925 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 87 predicate places. [2025-01-09 21:22:44,925 INFO L471 AbstractCegarLoop]: Abstraction has has 265 places, 406 transitions, 2454 flow [2025-01-09 21:22:44,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 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 21:22:44,926 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:44,926 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] [2025-01-09 21:22:44,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 21:22:44,926 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:22:44,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:44,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1666443157, now seen corresponding path program 1 times [2025-01-09 21:22:44,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:44,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638402444] [2025-01-09 21:22:44,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:44,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:44,940 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-01-09 21:22:44,960 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-01-09 21:22:44,960 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:44,960 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:45,376 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 21:22:45,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:45,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638402444] [2025-01-09 21:22:45,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638402444] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:45,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:45,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 21:22:45,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101551016] [2025-01-09 21:22:45,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:45,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 21:22:45,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:45,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 21:22:45,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 21:22:46,600 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-01-09 21:22:46,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 406 transitions, 2454 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:22:46,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:46,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-01-09 21:22:46,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:47,765 INFO L124 PetriNetUnfolderBase]: 2157/8130 cut-off events. [2025-01-09 21:22:47,766 INFO L125 PetriNetUnfolderBase]: For 10319/10561 co-relation queries the response was YES. [2025-01-09 21:22:47,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22215 conditions, 8130 events. 2157/8130 cut-off events. For 10319/10561 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 74233 event pairs, 297 based on Foata normal form. 73/8074 useless extension candidates. Maximal degree in co-relation 21937. Up to 1356 conditions per place. [2025-01-09 21:22:47,816 INFO L140 encePairwiseOnDemand]: 164/178 looper letters, 74 selfloop transitions, 15 changer transitions 2/469 dead transitions. [2025-01-09 21:22:47,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 469 transitions, 2794 flow [2025-01-09 21:22:47,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 21:22:47,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-09 21:22:47,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1447 transitions. [2025-01-09 21:22:47,819 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9032459425717853 [2025-01-09 21:22:47,819 INFO L175 Difference]: Start difference. First operand has 265 places, 406 transitions, 2454 flow. Second operand 9 states and 1447 transitions. [2025-01-09 21:22:47,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 469 transitions, 2794 flow [2025-01-09 21:22:47,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 469 transitions, 2712 flow, removed 41 selfloop flow, removed 0 redundant places. [2025-01-09 21:22:47,865 INFO L231 Difference]: Finished difference. Result has 280 places, 421 transitions, 2490 flow [2025-01-09 21:22:47,865 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=2372, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2490, PETRI_PLACES=280, PETRI_TRANSITIONS=421} [2025-01-09 21:22:47,866 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 102 predicate places. [2025-01-09 21:22:47,866 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 421 transitions, 2490 flow [2025-01-09 21:22:47,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:22:47,866 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:47,867 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] [2025-01-09 21:22:47,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 21:22:47,867 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:22:47,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:47,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1280120291, now seen corresponding path program 2 times [2025-01-09 21:22:47,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:47,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586486342] [2025-01-09 21:22:47,868 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:22:47,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:47,879 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-01-09 21:22:47,886 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-01-09 21:22:47,886 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:22:47,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:48,209 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 21:22:48,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:48,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586486342] [2025-01-09 21:22:48,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586486342] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:48,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:48,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 21:22:48,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362748693] [2025-01-09 21:22:48,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:48,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 21:22:48,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:48,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 21:22:48,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 21:22:49,394 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-01-09 21:22:49,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 421 transitions, 2490 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:22:49,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:49,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-01-09 21:22:49,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:50,736 INFO L124 PetriNetUnfolderBase]: 2461/9026 cut-off events. [2025-01-09 21:22:50,736 INFO L125 PetriNetUnfolderBase]: For 12153/12463 co-relation queries the response was YES. [2025-01-09 21:22:50,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25977 conditions, 9026 events. 2461/9026 cut-off events. For 12153/12463 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 84760 event pairs, 299 based on Foata normal form. 80/8946 useless extension candidates. Maximal degree in co-relation 25691. Up to 1603 conditions per place. [2025-01-09 21:22:50,827 INFO L140 encePairwiseOnDemand]: 165/178 looper letters, 113 selfloop transitions, 20 changer transitions 0/511 dead transitions. [2025-01-09 21:22:50,828 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 511 transitions, 3154 flow [2025-01-09 21:22:50,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 21:22:50,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-09 21:22:50,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1446 transitions. [2025-01-09 21:22:50,832 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9026217228464419 [2025-01-09 21:22:50,832 INFO L175 Difference]: Start difference. First operand has 280 places, 421 transitions, 2490 flow. Second operand 9 states and 1446 transitions. [2025-01-09 21:22:50,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 511 transitions, 3154 flow [2025-01-09 21:22:50,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 511 transitions, 3154 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:22:51,007 INFO L231 Difference]: Finished difference. Result has 295 places, 437 transitions, 2664 flow [2025-01-09 21:22:51,007 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=2490, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2664, PETRI_PLACES=295, PETRI_TRANSITIONS=437} [2025-01-09 21:22:51,012 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 117 predicate places. [2025-01-09 21:22:51,012 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 437 transitions, 2664 flow [2025-01-09 21:22:51,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:22:51,013 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:51,013 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] [2025-01-09 21:22:51,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-09 21:22:51,013 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:22:51,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:51,014 INFO L85 PathProgramCache]: Analyzing trace with hash -474091963, now seen corresponding path program 3 times [2025-01-09 21:22:51,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:51,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254335097] [2025-01-09 21:22:51,014 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 21:22:51,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:51,043 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-01-09 21:22:51,059 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-01-09 21:22:51,064 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-09 21:22:51,065 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:51,550 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 21:22:51,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:51,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254335097] [2025-01-09 21:22:51,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254335097] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:51,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:51,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 21:22:51,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773614612] [2025-01-09 21:22:51,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:51,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 21:22:51,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:51,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 21:22:51,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 21:22:52,622 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-01-09 21:22:52,623 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 437 transitions, 2664 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:22:52,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:52,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-01-09 21:22:52,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:54,304 INFO L124 PetriNetUnfolderBase]: 2736/10058 cut-off events. [2025-01-09 21:22:54,304 INFO L125 PetriNetUnfolderBase]: For 16000/16410 co-relation queries the response was YES. [2025-01-09 21:22:54,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30201 conditions, 10058 events. 2736/10058 cut-off events. For 16000/16410 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 95455 event pairs, 315 based on Foata normal form. 104/10013 useless extension candidates. Maximal degree in co-relation 29907. Up to 1744 conditions per place. [2025-01-09 21:22:54,364 INFO L140 encePairwiseOnDemand]: 164/178 looper letters, 119 selfloop transitions, 22 changer transitions 2/521 dead transitions. [2025-01-09 21:22:54,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 521 transitions, 3458 flow [2025-01-09 21:22:54,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 21:22:54,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-09 21:22:54,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1452 transitions. [2025-01-09 21:22:54,366 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9063670411985019 [2025-01-09 21:22:54,366 INFO L175 Difference]: Start difference. First operand has 295 places, 437 transitions, 2664 flow. Second operand 9 states and 1452 transitions. [2025-01-09 21:22:54,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 521 transitions, 3458 flow [2025-01-09 21:22:54,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 521 transitions, 3417 flow, removed 15 selfloop flow, removed 1 redundant places. [2025-01-09 21:22:54,422 INFO L231 Difference]: Finished difference. Result has 307 places, 449 transitions, 2835 flow [2025-01-09 21:22:54,422 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=2649, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2835, PETRI_PLACES=307, PETRI_TRANSITIONS=449} [2025-01-09 21:22:54,423 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 129 predicate places. [2025-01-09 21:22:54,423 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 449 transitions, 2835 flow [2025-01-09 21:22:54,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:22:54,423 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:54,424 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] [2025-01-09 21:22:54,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-09 21:22:54,424 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:22:54,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:54,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1767573213, now seen corresponding path program 4 times [2025-01-09 21:22:54,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:54,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370798822] [2025-01-09 21:22:54,425 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-09 21:22:54,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:54,439 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-01-09 21:22:54,452 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-01-09 21:22:54,452 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-09 21:22:54,452 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:55,007 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 21:22:55,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:55,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370798822] [2025-01-09 21:22:55,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370798822] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:55,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:55,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-09 21:22:55,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231442692] [2025-01-09 21:22:55,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:55,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 21:22:55,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:55,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 21:22:55,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2025-01-09 21:22:56,270 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-01-09 21:22:56,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 449 transitions, 2835 flow. Second operand has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 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 21:22:56,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:56,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-01-09 21:22:56,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:58,078 INFO L124 PetriNetUnfolderBase]: 3055/11090 cut-off events. [2025-01-09 21:22:58,078 INFO L125 PetriNetUnfolderBase]: For 19745/20246 co-relation queries the response was YES. [2025-01-09 21:22:58,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34186 conditions, 11090 events. 3055/11090 cut-off events. For 19745/20246 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 106976 event pairs, 322 based on Foata normal form. 119/11034 useless extension candidates. Maximal degree in co-relation 33886. Up to 1981 conditions per place. [2025-01-09 21:22:58,152 INFO L140 encePairwiseOnDemand]: 163/178 looper letters, 133 selfloop transitions, 28 changer transitions 0/539 dead transitions. [2025-01-09 21:22:58,153 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 539 transitions, 3784 flow [2025-01-09 21:22:58,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 21:22:58,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-01-09 21:22:58,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1603 transitions. [2025-01-09 21:22:58,154 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.900561797752809 [2025-01-09 21:22:58,154 INFO L175 Difference]: Start difference. First operand has 307 places, 449 transitions, 2835 flow. Second operand 10 states and 1603 transitions. [2025-01-09 21:22:58,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 539 transitions, 3784 flow [2025-01-09 21:22:58,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 539 transitions, 3705 flow, removed 7 selfloop flow, removed 3 redundant places. [2025-01-09 21:22:58,237 INFO L231 Difference]: Finished difference. Result has 318 places, 461 transitions, 3013 flow [2025-01-09 21:22:58,238 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=2809, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3013, PETRI_PLACES=318, PETRI_TRANSITIONS=461} [2025-01-09 21:22:58,239 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 140 predicate places. [2025-01-09 21:22:58,240 INFO L471 AbstractCegarLoop]: Abstraction has has 318 places, 461 transitions, 3013 flow [2025-01-09 21:22:58,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 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 21:22:58,240 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:58,241 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] [2025-01-09 21:22:58,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-09 21:22:58,241 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:22:58,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:58,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1146058823, now seen corresponding path program 5 times [2025-01-09 21:22:58,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:58,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153022123] [2025-01-09 21:22:58,242 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-09 21:22:58,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:58,260 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-01-09 21:22:58,279 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-01-09 21:22:58,279 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-01-09 21:22:58,279 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:59,285 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-01-09 21:22:59,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:59,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153022123] [2025-01-09 21:22:59,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153022123] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 21:22:59,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392568760] [2025-01-09 21:22:59,286 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-09 21:22:59,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:22:59,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:22:59,290 INFO L229 MonitoredProcess]: Starting monitored process 6 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 21:22:59,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-09 21:22:59,359 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-01-09 21:22:59,412 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-01-09 21:22:59,412 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-01-09 21:22:59,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:59,413 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-01-09 21:22:59,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:22:59,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-01-09 21:22:59,762 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 21:22:59,762 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:22:59,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392568760] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:59,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 21:22:59,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2025-01-09 21:22:59,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679930410] [2025-01-09 21:22:59,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:59,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 21:22:59,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:59,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 21:22:59,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2025-01-09 21:23:00,711 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-01-09 21:23:00,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 461 transitions, 3013 flow. Second operand has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 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 21:23:00,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:00,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-01-09 21:23:00,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:02,804 INFO L124 PetriNetUnfolderBase]: 3363/12285 cut-off events. [2025-01-09 21:23:02,804 INFO L125 PetriNetUnfolderBase]: For 24785/25331 co-relation queries the response was YES. [2025-01-09 21:23:02,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38685 conditions, 12285 events. 3363/12285 cut-off events. For 24785/25331 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 120995 event pairs, 346 based on Foata normal form. 113/12227 useless extension candidates. Maximal degree in co-relation 38379. Up to 2138 conditions per place. [2025-01-09 21:23:02,907 INFO L140 encePairwiseOnDemand]: 163/178 looper letters, 133 selfloop transitions, 30 changer transitions 1/542 dead transitions. [2025-01-09 21:23:02,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 542 transitions, 3999 flow [2025-01-09 21:23:02,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 21:23:02,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-01-09 21:23:02,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1606 transitions. [2025-01-09 21:23:02,908 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.902247191011236 [2025-01-09 21:23:02,908 INFO L175 Difference]: Start difference. First operand has 318 places, 461 transitions, 3013 flow. Second operand 10 states and 1606 transitions. [2025-01-09 21:23:02,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 542 transitions, 3999 flow [2025-01-09 21:23:02,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 542 transitions, 3906 flow, removed 10 selfloop flow, removed 4 redundant places. [2025-01-09 21:23:03,003 INFO L231 Difference]: Finished difference. Result has 329 places, 476 transitions, 3255 flow [2025-01-09 21:23:03,004 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=2970, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3255, PETRI_PLACES=329, PETRI_TRANSITIONS=476} [2025-01-09 21:23:03,004 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 151 predicate places. [2025-01-09 21:23:03,004 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 476 transitions, 3255 flow [2025-01-09 21:23:03,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 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 21:23:03,005 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:03,005 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] [2025-01-09 21:23:03,012 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-09 21:23:03,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-01-09 21:23:03,205 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:23:03,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:03,206 INFO L85 PathProgramCache]: Analyzing trace with hash 388673383, now seen corresponding path program 6 times [2025-01-09 21:23:03,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:03,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868432888] [2025-01-09 21:23:03,206 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-09 21:23:03,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:03,219 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 159 statements into 11 equivalence classes. [2025-01-09 21:23:03,224 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-01-09 21:23:03,224 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-01-09 21:23:03,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:03,391 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 21:23:03,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:03,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868432888] [2025-01-09 21:23:03,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868432888] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:03,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:03,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 21:23:03,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507836081] [2025-01-09 21:23:03,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:03,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 21:23:03,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:03,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 21:23:03,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-01-09 21:23:04,473 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-01-09 21:23:04,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 476 transitions, 3255 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:23:04,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:04,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-01-09 21:23:04,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:06,250 INFO L124 PetriNetUnfolderBase]: 3707/13415 cut-off events. [2025-01-09 21:23:06,250 INFO L125 PetriNetUnfolderBase]: For 30873/31520 co-relation queries the response was YES. [2025-01-09 21:23:06,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43284 conditions, 13415 events. 3707/13415 cut-off events. For 30873/31520 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 134698 event pairs, 368 based on Foata normal form. 120/13341 useless extension candidates. Maximal degree in co-relation 42972. Up to 2363 conditions per place. [2025-01-09 21:23:06,382 INFO L140 encePairwiseOnDemand]: 164/178 looper letters, 150 selfloop transitions, 34 changer transitions 0/562 dead transitions. [2025-01-09 21:23:06,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 562 transitions, 4379 flow [2025-01-09 21:23:06,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 21:23:06,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-09 21:23:06,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1455 transitions. [2025-01-09 21:23:06,384 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9082397003745318 [2025-01-09 21:23:06,384 INFO L175 Difference]: Start difference. First operand has 329 places, 476 transitions, 3255 flow. Second operand 9 states and 1455 transitions. [2025-01-09 21:23:06,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 562 transitions, 4379 flow [2025-01-09 21:23:06,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 562 transitions, 4281 flow, removed 27 selfloop flow, removed 3 redundant places. [2025-01-09 21:23:06,516 INFO L231 Difference]: Finished difference. Result has 340 places, 491 transitions, 3496 flow [2025-01-09 21:23:06,517 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=3194, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=476, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3496, PETRI_PLACES=340, PETRI_TRANSITIONS=491} [2025-01-09 21:23:06,517 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 162 predicate places. [2025-01-09 21:23:06,517 INFO L471 AbstractCegarLoop]: Abstraction has has 340 places, 491 transitions, 3496 flow [2025-01-09 21:23:06,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:23:06,518 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:06,518 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] [2025-01-09 21:23:06,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-09 21:23:06,518 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:23:06,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:06,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1065665419, now seen corresponding path program 7 times [2025-01-09 21:23:06,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:06,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725616325] [2025-01-09 21:23:06,519 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-09 21:23:06,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:06,530 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-01-09 21:23:06,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-01-09 21:23:06,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:23:06,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:06,826 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 21:23:06,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:06,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725616325] [2025-01-09 21:23:06,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725616325] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:06,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:06,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 21:23:06,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918058906] [2025-01-09 21:23:06,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:06,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 21:23:06,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:06,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 21:23:06,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-01-09 21:23:07,764 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-01-09 21:23:07,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 491 transitions, 3496 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:23:07,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:07,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-01-09 21:23:07,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:10,429 INFO L124 PetriNetUnfolderBase]: 4051/14658 cut-off events. [2025-01-09 21:23:10,430 INFO L125 PetriNetUnfolderBase]: For 39394/40096 co-relation queries the response was YES. [2025-01-09 21:23:10,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48600 conditions, 14658 events. 4051/14658 cut-off events. For 39394/40096 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 150037 event pairs, 436 based on Foata normal form. 112/14565 useless extension candidates. Maximal degree in co-relation 48283. Up to 2511 conditions per place. [2025-01-09 21:23:10,595 INFO L140 encePairwiseOnDemand]: 164/178 looper letters, 148 selfloop transitions, 36 changer transitions 0/562 dead transitions. [2025-01-09 21:23:10,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 562 transitions, 4599 flow [2025-01-09 21:23:10,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 21:23:10,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-09 21:23:10,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1457 transitions. [2025-01-09 21:23:10,597 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9094881398252185 [2025-01-09 21:23:10,597 INFO L175 Difference]: Start difference. First operand has 340 places, 491 transitions, 3496 flow. Second operand 9 states and 1457 transitions. [2025-01-09 21:23:10,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 562 transitions, 4599 flow [2025-01-09 21:23:10,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 562 transitions, 4499 flow, removed 26 selfloop flow, removed 2 redundant places. [2025-01-09 21:23:10,755 INFO L231 Difference]: Finished difference. Result has 353 places, 510 transitions, 3852 flow [2025-01-09 21:23:10,755 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=3418, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=491, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3852, PETRI_PLACES=353, PETRI_TRANSITIONS=510} [2025-01-09 21:23:10,755 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 175 predicate places. [2025-01-09 21:23:10,756 INFO L471 AbstractCegarLoop]: Abstraction has has 353 places, 510 transitions, 3852 flow [2025-01-09 21:23:10,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:23:10,756 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:10,757 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] [2025-01-09 21:23:10,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-01-09 21:23:10,757 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:23:10,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:10,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1278785949, now seen corresponding path program 8 times [2025-01-09 21:23:10,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:10,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260353218] [2025-01-09 21:23:10,758 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:23:10,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:10,768 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-01-09 21:23:10,774 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-01-09 21:23:10,774 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:23:10,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:10,914 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 21:23:10,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:10,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260353218] [2025-01-09 21:23:10,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260353218] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:10,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:10,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 21:23:10,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257904147] [2025-01-09 21:23:10,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:10,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 21:23:10,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:10,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 21:23:10,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 21:23:11,484 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-01-09 21:23:11,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 510 transitions, 3852 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:23:11,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:11,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-01-09 21:23:11,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:13,796 INFO L124 PetriNetUnfolderBase]: 4625/16578 cut-off events. [2025-01-09 21:23:13,796 INFO L125 PetriNetUnfolderBase]: For 49938/50773 co-relation queries the response was YES. [2025-01-09 21:23:13,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56205 conditions, 16578 events. 4625/16578 cut-off events. For 49938/50773 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 174988 event pairs, 460 based on Foata normal form. 139/16509 useless extension candidates. Maximal degree in co-relation 55881. Up to 2910 conditions per place. [2025-01-09 21:23:14,049 INFO L140 encePairwiseOnDemand]: 163/178 looper letters, 169 selfloop transitions, 45 changer transitions 0/592 dead transitions. [2025-01-09 21:23:14,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 592 transitions, 5156 flow [2025-01-09 21:23:14,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 21:23:14,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-09 21:23:14,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1459 transitions. [2025-01-09 21:23:14,051 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9107365792759051 [2025-01-09 21:23:14,051 INFO L175 Difference]: Start difference. First operand has 353 places, 510 transitions, 3852 flow. Second operand 9 states and 1459 transitions. [2025-01-09 21:23:14,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 592 transitions, 5156 flow [2025-01-09 21:23:14,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 592 transitions, 5052 flow, removed 52 selfloop flow, removed 0 redundant places. [2025-01-09 21:23:14,278 INFO L231 Difference]: Finished difference. Result has 368 places, 528 transitions, 4205 flow [2025-01-09 21:23:14,278 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=3748, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=470, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4205, PETRI_PLACES=368, PETRI_TRANSITIONS=528} [2025-01-09 21:23:14,280 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 190 predicate places. [2025-01-09 21:23:14,281 INFO L471 AbstractCegarLoop]: Abstraction has has 368 places, 528 transitions, 4205 flow [2025-01-09 21:23:14,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:23:14,281 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:14,281 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] [2025-01-09 21:23:14,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-01-09 21:23:14,281 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:23:14,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:14,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1155857903, now seen corresponding path program 9 times [2025-01-09 21:23:14,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:14,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812933756] [2025-01-09 21:23:14,282 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 21:23:14,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:14,293 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-01-09 21:23:14,301 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-01-09 21:23:14,301 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-09 21:23:14,301 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:14,440 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 21:23:14,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:14,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812933756] [2025-01-09 21:23:14,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812933756] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:14,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:14,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 21:23:14,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758491922] [2025-01-09 21:23:14,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:14,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 21:23:14,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:14,441 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 21:23:14,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 21:23:14,941 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-01-09 21:23:14,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 528 transitions, 4205 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:23:14,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:14,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-01-09 21:23:14,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:17,540 INFO L124 PetriNetUnfolderBase]: 5214/18627 cut-off events. [2025-01-09 21:23:17,540 INFO L125 PetriNetUnfolderBase]: For 62033/62985 co-relation queries the response was YES. [2025-01-09 21:23:17,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64474 conditions, 18627 events. 5214/18627 cut-off events. For 62033/62985 co-relation queries the response was YES. Maximal size of possible extension queue 662. Compared 202497 event pairs, 499 based on Foata normal form. 152/18561 useless extension candidates. Maximal degree in co-relation 64142. Up to 3261 conditions per place. [2025-01-09 21:23:17,705 INFO L140 encePairwiseOnDemand]: 163/178 looper letters, 184 selfloop transitions, 46 changer transitions 0/608 dead transitions. [2025-01-09 21:23:17,705 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 608 transitions, 5463 flow [2025-01-09 21:23:17,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 21:23:17,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-09 21:23:17,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1459 transitions. [2025-01-09 21:23:17,706 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9107365792759051 [2025-01-09 21:23:17,707 INFO L175 Difference]: Start difference. First operand has 368 places, 528 transitions, 4205 flow. Second operand 9 states and 1459 transitions. [2025-01-09 21:23:17,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 608 transitions, 5463 flow [2025-01-09 21:23:17,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 608 transitions, 5377 flow, removed 43 selfloop flow, removed 0 redundant places. [2025-01-09 21:23:17,946 INFO L231 Difference]: Finished difference. Result has 382 places, 545 transitions, 4528 flow [2025-01-09 21:23:17,946 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=4119, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=528, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=487, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4528, PETRI_PLACES=382, PETRI_TRANSITIONS=545} [2025-01-09 21:23:17,947 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 204 predicate places. [2025-01-09 21:23:17,947 INFO L471 AbstractCegarLoop]: Abstraction has has 382 places, 545 transitions, 4528 flow [2025-01-09 21:23:17,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:23:17,948 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:17,948 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] [2025-01-09 21:23:17,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-01-09 21:23:17,948 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:23:17,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:17,949 INFO L85 PathProgramCache]: Analyzing trace with hash -287272811, now seen corresponding path program 10 times [2025-01-09 21:23:17,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:17,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240596372] [2025-01-09 21:23:17,949 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-09 21:23:17,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:17,958 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-01-09 21:23:17,966 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-01-09 21:23:17,966 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-09 21:23:17,966 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:18,319 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 21:23:18,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:18,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240596372] [2025-01-09 21:23:18,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240596372] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:18,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:18,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-09 21:23:18,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243484104] [2025-01-09 21:23:18,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:18,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 21:23:18,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:18,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 21:23:18,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-01-09 21:23:19,266 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-01-09 21:23:19,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 382 places, 545 transitions, 4528 flow. Second operand has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 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 21:23:19,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:19,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-01-09 21:23:19,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:22,052 INFO L124 PetriNetUnfolderBase]: 5502/19572 cut-off events. [2025-01-09 21:23:22,052 INFO L125 PetriNetUnfolderBase]: For 70286/71294 co-relation queries the response was YES. [2025-01-09 21:23:22,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68719 conditions, 19572 events. 5502/19572 cut-off events. For 70286/71294 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 215370 event pairs, 533 based on Foata normal form. 173/19523 useless extension candidates. Maximal degree in co-relation 68380. Up to 3435 conditions per place. [2025-01-09 21:23:22,278 INFO L140 encePairwiseOnDemand]: 161/178 looper letters, 182 selfloop transitions, 54 changer transitions 0/614 dead transitions. [2025-01-09 21:23:22,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 614 transitions, 5830 flow [2025-01-09 21:23:22,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 21:23:22,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-01-09 21:23:22,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1612 transitions. [2025-01-09 21:23:22,280 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9056179775280899 [2025-01-09 21:23:22,280 INFO L175 Difference]: Start difference. First operand has 382 places, 545 transitions, 4528 flow. Second operand 10 states and 1612 transitions. [2025-01-09 21:23:22,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 614 transitions, 5830 flow [2025-01-09 21:23:22,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 614 transitions, 5677 flow, removed 57 selfloop flow, removed 2 redundant places. [2025-01-09 21:23:22,604 INFO L231 Difference]: Finished difference. Result has 393 places, 559 transitions, 4809 flow [2025-01-09 21:23:22,605 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=4431, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4809, PETRI_PLACES=393, PETRI_TRANSITIONS=559} [2025-01-09 21:23:22,605 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 215 predicate places. [2025-01-09 21:23:22,605 INFO L471 AbstractCegarLoop]: Abstraction has has 393 places, 559 transitions, 4809 flow [2025-01-09 21:23:22,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 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 21:23:22,606 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:22,606 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] [2025-01-09 21:23:22,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-01-09 21:23:22,606 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:23:22,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:22,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1384844563, now seen corresponding path program 11 times [2025-01-09 21:23:22,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:22,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065510218] [2025-01-09 21:23:22,607 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-09 21:23:22,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:22,616 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-01-09 21:23:22,622 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-01-09 21:23:22,622 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-01-09 21:23:22,622 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:22,912 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-01-09 21:23:22,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:22,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065510218] [2025-01-09 21:23:22,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065510218] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 21:23:22,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111579627] [2025-01-09 21:23:22,913 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-09 21:23:22,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:23:22,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:23:22,915 INFO L229 MonitoredProcess]: Starting monitored process 7 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 21:23:22,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-09 21:23:22,991 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-01-09 21:23:23,040 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-01-09 21:23:23,040 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-01-09 21:23:23,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:23,042 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-01-09 21:23:23,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:23:23,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-01-09 21:23:23,264 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 21:23:23,264 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:23:23,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111579627] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:23,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 21:23:23,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2025-01-09 21:23:23,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638125215] [2025-01-09 21:23:23,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:23,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 21:23:23,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:23,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 21:23:23,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2025-01-09 21:23:24,281 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-01-09 21:23:24,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 393 places, 559 transitions, 4809 flow. Second operand has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 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 21:23:24,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:24,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-01-09 21:23:24,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:27,121 INFO L124 PetriNetUnfolderBase]: 5530/19634 cut-off events. [2025-01-09 21:23:27,121 INFO L125 PetriNetUnfolderBase]: For 75471/76550 co-relation queries the response was YES. [2025-01-09 21:23:27,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69631 conditions, 19634 events. 5530/19634 cut-off events. For 75471/76550 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 215913 event pairs, 538 based on Foata normal form. 181/19578 useless extension candidates. Maximal degree in co-relation 69287. Up to 3444 conditions per place. [2025-01-09 21:23:27,432 INFO L140 encePairwiseOnDemand]: 162/178 looper letters, 185 selfloop transitions, 58 changer transitions 0/621 dead transitions. [2025-01-09 21:23:27,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 621 transitions, 6035 flow [2025-01-09 21:23:27,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 21:23:27,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-01-09 21:23:27,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1613 transitions. [2025-01-09 21:23:27,433 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9061797752808989 [2025-01-09 21:23:27,433 INFO L175 Difference]: Start difference. First operand has 393 places, 559 transitions, 4809 flow. Second operand 10 states and 1613 transitions. [2025-01-09 21:23:27,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 621 transitions, 6035 flow [2025-01-09 21:23:27,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 621 transitions, 5873 flow, removed 39 selfloop flow, removed 5 redundant places. [2025-01-09 21:23:27,769 INFO L231 Difference]: Finished difference. Result has 402 places, 571 transitions, 5079 flow [2025-01-09 21:23:27,769 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=4671, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=559, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=504, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5079, PETRI_PLACES=402, PETRI_TRANSITIONS=571} [2025-01-09 21:23:27,770 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 224 predicate places. [2025-01-09 21:23:27,770 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 571 transitions, 5079 flow [2025-01-09 21:23:27,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 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 21:23:27,770 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:27,771 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] [2025-01-09 21:23:27,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-09 21:23:27,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:23:27,975 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:23:27,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:27,976 INFO L85 PathProgramCache]: Analyzing trace with hash 83912365, now seen corresponding path program 12 times [2025-01-09 21:23:27,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:27,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95427412] [2025-01-09 21:23:27,976 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-09 21:23:27,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:27,988 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 159 statements into 11 equivalence classes. [2025-01-09 21:23:27,993 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-01-09 21:23:27,993 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-01-09 21:23:27,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:28,187 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 21:23:28,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:28,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95427412] [2025-01-09 21:23:28,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95427412] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:28,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:28,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 21:23:28,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013450850] [2025-01-09 21:23:28,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:28,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 21:23:28,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:28,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 21:23:28,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-01-09 21:23:28,836 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-01-09 21:23:28,837 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 571 transitions, 5079 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:23:28,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:28,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-01-09 21:23:28,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:31,626 INFO L124 PetriNetUnfolderBase]: 5502/19574 cut-off events. [2025-01-09 21:23:31,626 INFO L125 PetriNetUnfolderBase]: For 79343/80433 co-relation queries the response was YES. [2025-01-09 21:23:31,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69902 conditions, 19574 events. 5502/19574 cut-off events. For 79343/80433 co-relation queries the response was YES. Maximal size of possible extension queue 725. Compared 215353 event pairs, 533 based on Foata normal form. 177/19523 useless extension candidates. Maximal degree in co-relation 69553. Up to 3439 conditions per place. [2025-01-09 21:23:31,933 INFO L140 encePairwiseOnDemand]: 163/178 looper letters, 198 selfloop transitions, 52 changer transitions 0/628 dead transitions. [2025-01-09 21:23:31,933 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 628 transitions, 6283 flow [2025-01-09 21:23:31,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 21:23:31,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-09 21:23:31,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1465 transitions. [2025-01-09 21:23:31,938 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9144818976279651 [2025-01-09 21:23:31,938 INFO L175 Difference]: Start difference. First operand has 402 places, 571 transitions, 5079 flow. Second operand 9 states and 1465 transitions. [2025-01-09 21:23:31,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 628 transitions, 6283 flow [2025-01-09 21:23:32,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 628 transitions, 6071 flow, removed 75 selfloop flow, removed 4 redundant places. [2025-01-09 21:23:32,308 INFO L231 Difference]: Finished difference. Result has 410 places, 579 transitions, 5215 flow [2025-01-09 21:23:32,309 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=4941, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=571, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=522, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5215, PETRI_PLACES=410, PETRI_TRANSITIONS=579} [2025-01-09 21:23:32,309 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 232 predicate places. [2025-01-09 21:23:32,309 INFO L471 AbstractCegarLoop]: Abstraction has has 410 places, 579 transitions, 5215 flow [2025-01-09 21:23:32,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:23:32,310 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:32,310 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] [2025-01-09 21:23:32,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-01-09 21:23:32,310 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:23:32,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:32,311 INFO L85 PathProgramCache]: Analyzing trace with hash 766254865, now seen corresponding path program 13 times [2025-01-09 21:23:32,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:32,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677328861] [2025-01-09 21:23:32,311 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-09 21:23:32,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:32,319 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-01-09 21:23:32,324 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-01-09 21:23:32,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:23:32,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:32,489 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 21:23:32,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:32,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677328861] [2025-01-09 21:23:32,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677328861] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:32,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:32,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 21:23:32,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627485785] [2025-01-09 21:23:32,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:32,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 21:23:32,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:32,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 21:23:32,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-01-09 21:23:33,089 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-01-09 21:23:33,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 579 transitions, 5215 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:23:33,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:33,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-01-09 21:23:33,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:36,035 INFO L124 PetriNetUnfolderBase]: 5508/19661 cut-off events. [2025-01-09 21:23:36,035 INFO L125 PetriNetUnfolderBase]: For 79802/80884 co-relation queries the response was YES. [2025-01-09 21:23:36,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70277 conditions, 19661 events. 5508/19661 cut-off events. For 79802/80884 co-relation queries the response was YES. Maximal size of possible extension queue 727. Compared 216867 event pairs, 532 based on Foata normal form. 175/19610 useless extension candidates. Maximal degree in co-relation 69925. Up to 3451 conditions per place. [2025-01-09 21:23:36,425 INFO L140 encePairwiseOnDemand]: 162/178 looper letters, 195 selfloop transitions, 60 changer transitions 0/633 dead transitions. [2025-01-09 21:23:36,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 633 transitions, 6373 flow [2025-01-09 21:23:36,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 21:23:36,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-09 21:23:36,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1464 transitions. [2025-01-09 21:23:36,426 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9138576779026217 [2025-01-09 21:23:36,427 INFO L175 Difference]: Start difference. First operand has 410 places, 579 transitions, 5215 flow. Second operand 9 states and 1464 transitions. [2025-01-09 21:23:36,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 633 transitions, 6373 flow [2025-01-09 21:23:36,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 633 transitions, 6301 flow, removed 6 selfloop flow, removed 3 redundant places. [2025-01-09 21:23:36,826 INFO L231 Difference]: Finished difference. Result has 418 places, 588 transitions, 5470 flow [2025-01-09 21:23:36,827 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=5145, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=579, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=522, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5470, PETRI_PLACES=418, PETRI_TRANSITIONS=588} [2025-01-09 21:23:36,827 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 240 predicate places. [2025-01-09 21:23:36,827 INFO L471 AbstractCegarLoop]: Abstraction has has 418 places, 588 transitions, 5470 flow [2025-01-09 21:23:36,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:23:36,828 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:36,828 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] [2025-01-09 21:23:36,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-01-09 21:23:36,828 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:23:36,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:36,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1627945589, now seen corresponding path program 14 times [2025-01-09 21:23:36,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:36,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133158980] [2025-01-09 21:23:36,830 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:23:36,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:36,838 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 159 statements into 2 equivalence classes. [2025-01-09 21:23:36,841 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-01-09 21:23:36,842 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:23:36,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:36,969 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 21:23:36,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:36,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133158980] [2025-01-09 21:23:36,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133158980] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:36,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:36,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 21:23:36,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233444574] [2025-01-09 21:23:36,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:36,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 21:23:36,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:36,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 21:23:36,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-01-09 21:23:37,534 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-01-09 21:23:37,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 588 transitions, 5470 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:23:37,536 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:37,536 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-01-09 21:23:37,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:40,451 INFO L124 PetriNetUnfolderBase]: 5263/18933 cut-off events. [2025-01-09 21:23:40,452 INFO L125 PetriNetUnfolderBase]: For 77657/78705 co-relation queries the response was YES. [2025-01-09 21:23:40,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67681 conditions, 18933 events. 5263/18933 cut-off events. For 77657/78705 co-relation queries the response was YES. Maximal size of possible extension queue 668. Compared 206781 event pairs, 523 based on Foata normal form. 160/18859 useless extension candidates. Maximal degree in co-relation 67326. Up to 3292 conditions per place. [2025-01-09 21:23:40,819 INFO L140 encePairwiseOnDemand]: 162/178 looper letters, 198 selfloop transitions, 59 changer transitions 0/635 dead transitions. [2025-01-09 21:23:40,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 635 transitions, 6527 flow [2025-01-09 21:23:40,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 21:23:40,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-09 21:23:40,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1467 transitions. [2025-01-09 21:23:40,820 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9157303370786517 [2025-01-09 21:23:40,820 INFO L175 Difference]: Start difference. First operand has 418 places, 588 transitions, 5470 flow. Second operand 9 states and 1467 transitions. [2025-01-09 21:23:40,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 635 transitions, 6527 flow [2025-01-09 21:23:41,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 635 transitions, 6379 flow, removed 18 selfloop flow, removed 6 redundant places. [2025-01-09 21:23:41,204 INFO L231 Difference]: Finished difference. Result has 423 places, 595 transitions, 5619 flow [2025-01-09 21:23:41,205 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=5281, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=586, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=530, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5619, PETRI_PLACES=423, PETRI_TRANSITIONS=595} [2025-01-09 21:23:41,205 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 245 predicate places. [2025-01-09 21:23:41,205 INFO L471 AbstractCegarLoop]: Abstraction has has 423 places, 595 transitions, 5619 flow [2025-01-09 21:23:41,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:23:41,206 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:41,206 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] [2025-01-09 21:23:41,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-01-09 21:23:41,206 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:23:41,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:41,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1084774401, now seen corresponding path program 15 times [2025-01-09 21:23:41,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:41,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663670695] [2025-01-09 21:23:41,207 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 21:23:41,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:41,215 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 159 statements into 11 equivalence classes. [2025-01-09 21:23:41,219 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-01-09 21:23:41,219 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-09 21:23:41,219 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:41,354 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 21:23:41,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:41,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663670695] [2025-01-09 21:23:41,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663670695] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:41,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:41,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 21:23:41,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597410933] [2025-01-09 21:23:41,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:41,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 21:23:41,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:41,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 21:23:41,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-01-09 21:23:42,151 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-01-09 21:23:42,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 595 transitions, 5619 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:23:42,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:42,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-01-09 21:23:42,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:44,938 INFO L124 PetriNetUnfolderBase]: 4961/18049 cut-off events. [2025-01-09 21:23:44,938 INFO L125 PetriNetUnfolderBase]: For 73592/74530 co-relation queries the response was YES. [2025-01-09 21:23:45,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64348 conditions, 18049 events. 4961/18049 cut-off events. For 73592/74530 co-relation queries the response was YES. Maximal size of possible extension queue 608. Compared 195220 event pairs, 504 based on Foata normal form. 155/17992 useless extension candidates. Maximal degree in co-relation 63990. Up to 3126 conditions per place. [2025-01-09 21:23:45,245 INFO L140 encePairwiseOnDemand]: 164/178 looper letters, 205 selfloop transitions, 60 changer transitions 0/643 dead transitions. [2025-01-09 21:23:45,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 643 transitions, 6693 flow [2025-01-09 21:23:45,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 21:23:45,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-09 21:23:45,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1459 transitions. [2025-01-09 21:23:45,247 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9107365792759051 [2025-01-09 21:23:45,247 INFO L175 Difference]: Start difference. First operand has 423 places, 595 transitions, 5619 flow. Second operand 9 states and 1459 transitions. [2025-01-09 21:23:45,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 643 transitions, 6693 flow [2025-01-09 21:23:45,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 643 transitions, 6537 flow, removed 31 selfloop flow, removed 5 redundant places. [2025-01-09 21:23:45,597 INFO L231 Difference]: Finished difference. Result has 429 places, 598 transitions, 5666 flow [2025-01-09 21:23:45,601 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=5421, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=593, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=535, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5666, PETRI_PLACES=429, PETRI_TRANSITIONS=598} [2025-01-09 21:23:45,601 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 251 predicate places. [2025-01-09 21:23:45,601 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 598 transitions, 5666 flow [2025-01-09 21:23:45,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:23:45,602 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:45,602 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] [2025-01-09 21:23:45,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-01-09 21:23:45,602 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:23:45,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:45,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1703237265, now seen corresponding path program 16 times [2025-01-09 21:23:45,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:45,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611707699] [2025-01-09 21:23:45,603 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-09 21:23:45,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:45,621 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 159 statements into 2 equivalence classes. [2025-01-09 21:23:45,629 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 159 of 159 statements. [2025-01-09 21:23:45,629 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-09 21:23:45,629 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:46,001 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 21:23:46,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:46,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611707699] [2025-01-09 21:23:46,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611707699] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:46,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:46,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-09 21:23:46,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945279241] [2025-01-09 21:23:46,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:46,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 21:23:46,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:46,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 21:23:46,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2025-01-09 21:23:47,146 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-01-09 21:23:47,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 598 transitions, 5666 flow. Second operand has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 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 21:23:47,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:47,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-01-09 21:23:47,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:50,296 INFO L124 PetriNetUnfolderBase]: 4991/18157 cut-off events. [2025-01-09 21:23:50,296 INFO L125 PetriNetUnfolderBase]: For 74117/75099 co-relation queries the response was YES. [2025-01-09 21:23:50,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64723 conditions, 18157 events. 4991/18157 cut-off events. For 74117/75099 co-relation queries the response was YES. Maximal size of possible extension queue 608. Compared 196471 event pairs, 488 based on Foata normal form. 214/18151 useless extension candidates. Maximal degree in co-relation 64362. Up to 3154 conditions per place. [2025-01-09 21:23:50,461 INFO L140 encePairwiseOnDemand]: 163/178 looper letters, 204 selfloop transitions, 90 changer transitions 0/672 dead transitions. [2025-01-09 21:23:50,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 438 places, 672 transitions, 7178 flow [2025-01-09 21:23:50,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 21:23:50,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-01-09 21:23:50,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1602 transitions. [2025-01-09 21:23:50,466 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9 [2025-01-09 21:23:50,466 INFO L175 Difference]: Start difference. First operand has 429 places, 598 transitions, 5666 flow. Second operand 10 states and 1602 transitions. [2025-01-09 21:23:50,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 438 places, 672 transitions, 7178 flow [2025-01-09 21:23:50,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 672 transitions, 7056 flow, removed 15 selfloop flow, removed 4 redundant places. [2025-01-09 21:23:50,799 INFO L231 Difference]: Finished difference. Result has 439 places, 609 transitions, 6090 flow [2025-01-09 21:23:50,799 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=5559, PETRI_DIFFERENCE_MINUEND_PLACES=425, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=598, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=512, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6090, PETRI_PLACES=439, PETRI_TRANSITIONS=609} [2025-01-09 21:23:50,800 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 261 predicate places. [2025-01-09 21:23:50,800 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 609 transitions, 6090 flow [2025-01-09 21:23:50,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 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 21:23:50,800 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:50,800 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] [2025-01-09 21:23:50,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-01-09 21:23:50,800 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:23:50,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:50,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1984899707, now seen corresponding path program 17 times [2025-01-09 21:23:50,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:50,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287106487] [2025-01-09 21:23:50,802 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-09 21:23:50,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:50,810 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-01-09 21:23:50,816 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-01-09 21:23:50,816 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-01-09 21:23:50,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:51,115 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2025-01-09 21:23:51,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:51,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287106487] [2025-01-09 21:23:51,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287106487] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 21:23:51,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300348731] [2025-01-09 21:23:51,116 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-09 21:23:51,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:23:51,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:23:51,118 INFO L229 MonitoredProcess]: Starting monitored process 8 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 21:23:51,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-09 21:23:51,198 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 159 statements into 11 equivalence classes. [2025-01-09 21:23:51,253 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 159 of 159 statements. [2025-01-09 21:23:51,253 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-01-09 21:23:51,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:51,256 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-01-09 21:23:51,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:23:51,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-01-09 21:23:51,522 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 21:23:51,522 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 21:23:51,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300348731] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:51,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 21:23:51,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2025-01-09 21:23:51,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141334081] [2025-01-09 21:23:51,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:51,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 21:23:51,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:51,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 21:23:51,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2025-01-09 21:23:52,470 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-01-09 21:23:52,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 609 transitions, 6090 flow. Second operand has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 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 21:23:52,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:52,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-01-09 21:23:52,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:55,955 INFO L124 PetriNetUnfolderBase]: 4962/18116 cut-off events. [2025-01-09 21:23:55,955 INFO L125 PetriNetUnfolderBase]: For 80785/81773 co-relation queries the response was YES. [2025-01-09 21:23:56,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65413 conditions, 18116 events. 4962/18116 cut-off events. For 80785/81773 co-relation queries the response was YES. Maximal size of possible extension queue 608. Compared 196145 event pairs, 489 based on Foata normal form. 194/18100 useless extension candidates. Maximal degree in co-relation 65046. Up to 3134 conditions per place. [2025-01-09 21:23:56,118 INFO L140 encePairwiseOnDemand]: 162/178 looper letters, 228 selfloop transitions, 63 changer transitions 0/669 dead transitions. [2025-01-09 21:23:56,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 669 transitions, 7404 flow [2025-01-09 21:23:56,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 21:23:56,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-01-09 21:23:56,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1607 transitions. [2025-01-09 21:23:56,120 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9028089887640449 [2025-01-09 21:23:56,120 INFO L175 Difference]: Start difference. First operand has 439 places, 609 transitions, 6090 flow. Second operand 10 states and 1607 transitions. [2025-01-09 21:23:56,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 669 transitions, 7404 flow [2025-01-09 21:23:56,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 669 transitions, 7207 flow, removed 83 selfloop flow, removed 2 redundant places. [2025-01-09 21:23:56,465 INFO L231 Difference]: Finished difference. Result has 450 places, 617 transitions, 6267 flow [2025-01-09 21:23:56,465 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=5949, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=609, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=549, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=6267, PETRI_PLACES=450, PETRI_TRANSITIONS=617} [2025-01-09 21:23:56,466 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 272 predicate places. [2025-01-09 21:23:56,466 INFO L471 AbstractCegarLoop]: Abstraction has has 450 places, 617 transitions, 6267 flow [2025-01-09 21:23:56,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 152.6) internal successors, (1526), 10 states have internal predecessors, (1526), 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 21:23:56,466 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:56,466 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] [2025-01-09 21:23:56,474 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-09 21:23:56,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:23:56,667 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:23:56,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:56,669 INFO L85 PathProgramCache]: Analyzing trace with hash -393483081, now seen corresponding path program 18 times [2025-01-09 21:23:56,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:56,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302944960] [2025-01-09 21:23:56,669 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-09 21:23:56,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:56,677 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 159 statements into 11 equivalence classes. [2025-01-09 21:23:56,680 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 109 of 159 statements. [2025-01-09 21:23:56,680 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-01-09 21:23:56,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:56,819 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 21:23:56,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:56,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302944960] [2025-01-09 21:23:56,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302944960] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:56,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:56,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 21:23:56,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233041100] [2025-01-09 21:23:56,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:56,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 21:23:56,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:56,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 21:23:56,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-01-09 21:23:57,482 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-01-09 21:23:57,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 617 transitions, 6267 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:23:57,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:57,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-01-09 21:23:57,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:24:01,413 INFO L124 PetriNetUnfolderBase]: 4963/18098 cut-off events. [2025-01-09 21:24:01,414 INFO L125 PetriNetUnfolderBase]: For 76773/77769 co-relation queries the response was YES. [2025-01-09 21:24:01,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65043 conditions, 18098 events. 4963/18098 cut-off events. For 76773/77769 co-relation queries the response was YES. Maximal size of possible extension queue 608. Compared 196035 event pairs, 484 based on Foata normal form. 187/18075 useless extension candidates. Maximal degree in co-relation 64671. Up to 3149 conditions per place. [2025-01-09 21:24:01,626 INFO L140 encePairwiseOnDemand]: 163/178 looper letters, 225 selfloop transitions, 77 changer transitions 0/680 dead transitions. [2025-01-09 21:24:01,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 680 transitions, 7643 flow [2025-01-09 21:24:01,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 21:24:01,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-09 21:24:01,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1455 transitions. [2025-01-09 21:24:01,627 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9082397003745318 [2025-01-09 21:24:01,628 INFO L175 Difference]: Start difference. First operand has 450 places, 617 transitions, 6267 flow. Second operand 9 states and 1455 transitions. [2025-01-09 21:24:01,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 680 transitions, 7643 flow [2025-01-09 21:24:01,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 680 transitions, 7532 flow, removed 34 selfloop flow, removed 3 redundant places. [2025-01-09 21:24:01,961 INFO L231 Difference]: Finished difference. Result has 459 places, 625 transitions, 6583 flow [2025-01-09 21:24:01,961 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=6192, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=617, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=543, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=6583, PETRI_PLACES=459, PETRI_TRANSITIONS=625} [2025-01-09 21:24:01,962 INFO L279 CegarLoopForPetriNet]: 178 programPoint places, 281 predicate places. [2025-01-09 21:24:01,962 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 625 transitions, 6583 flow [2025-01-09 21:24:01,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:24:01,962 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:24:01,962 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] [2025-01-09 21:24:01,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-01-09 21:24:01,963 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2025-01-09 21:24:01,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:24:01,964 INFO L85 PathProgramCache]: Analyzing trace with hash -2139967087, now seen corresponding path program 19 times [2025-01-09 21:24:01,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:24:01,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267850200] [2025-01-09 21:24:01,964 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-09 21:24:01,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:24:01,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-01-09 21:24:01,980 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-01-09 21:24:01,980 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:24:01,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:24:02,172 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 21:24:02,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:24:02,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267850200] [2025-01-09 21:24:02,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267850200] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:24:02,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:24:02,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 21:24:02,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541757322] [2025-01-09 21:24:02,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:24:02,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 21:24:02,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:24:02,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 21:24:02,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 21:24:02,790 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 178 [2025-01-09 21:24:02,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 625 transitions, 6583 flow. Second operand has 9 states, 9 states have (on average 152.77777777777777) internal successors, (1375), 9 states have internal predecessors, (1375), 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 21:24:02,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:24:02,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 178 [2025-01-09 21:24:02,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:24:06,446 INFO L124 PetriNetUnfolderBase]: 4997/18305 cut-off events. [2025-01-09 21:24:06,446 INFO L125 PetriNetUnfolderBase]: For 80930/81897 co-relation queries the response was YES. [2025-01-09 21:24:06,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66172 conditions, 18305 events. 4997/18305 cut-off events. For 80930/81897 co-relation queries the response was YES. Maximal size of possible extension queue 610. Compared 198627 event pairs, 491 based on Foata normal form. 161/18244 useless extension candidates. Maximal degree in co-relation 65797. Up to 3161 conditions per place. [2025-01-09 21:24:06,808 INFO L140 encePairwiseOnDemand]: 162/178 looper letters, 231 selfloop transitions, 68 changer transitions 0/677 dead transitions. [2025-01-09 21:24:06,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 677 transitions, 7740 flow [2025-01-09 21:24:06,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 21:24:06,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-09 21:24:06,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1458 transitions. [2025-01-09 21:24:06,810 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9101123595505618 [2025-01-09 21:24:06,810 INFO L175 Difference]: Start difference. First operand has 459 places, 625 transitions, 6583 flow. Second operand 9 states and 1458 transitions. [2025-01-09 21:24:06,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 677 transitions, 7740 flow