./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.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 c8af2e9e80aefb6a93651d6c869df13510f679bd9566c8571973545c9393aab5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:35:28,449 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:35:28,487 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:35:28,490 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:35:28,490 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:35:28,505 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:35:28,506 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:35:28,506 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:35:28,506 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:35:28,506 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:35:28,506 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:35:28,506 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:35:28,507 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:35:28,507 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:35:28,507 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:35:28,507 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:35:28,507 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:35:28,507 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:35:28,507 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:35:28,507 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:35:28,507 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:35:28,507 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:35:28,508 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:35:28,508 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:35:28,508 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:35:28,508 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:35:28,508 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:35:28,508 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:35:28,508 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:35:28,508 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:35:28,508 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:35:28,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:35:28,509 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:35:28,509 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:35:28,509 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:35:28,509 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:35:28,509 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:35:28,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:35:28,509 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:35:28,509 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:35:28,509 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:35:28,509 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:35:28,509 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 -> c8af2e9e80aefb6a93651d6c869df13510f679bd9566c8571973545c9393aab5 [2025-02-08 05:35:28,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:35:28,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:35:28,688 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:35:28,689 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:35:28,689 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:35:28,690 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.i [2025-02-08 05:35:29,803 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a1beb6e2e/1990c0bcf4074b179ee21d8d1f3bc28e/FLAG029be6739 [2025-02-08 05:35:30,122 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:35:30,125 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_73-funloop_hard_racefree.i [2025-02-08 05:35:30,137 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a1beb6e2e/1990c0bcf4074b179ee21d8d1f3bc28e/FLAG029be6739 [2025-02-08 05:35:30,378 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a1beb6e2e/1990c0bcf4074b179ee21d8d1f3bc28e [2025-02-08 05:35:30,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:35:30,383 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:35:30,384 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:35:30,385 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:35:30,388 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:35:30,388 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:35:30" (1/1) ... [2025-02-08 05:35:30,390 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1067fd46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:35:30, skipping insertion in model container [2025-02-08 05:35:30,391 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:35:30" (1/1) ... [2025-02-08 05:35:30,425 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:35:30,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:35:30,790 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:35:30,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:35:30,884 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:35:30,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:35:30 WrapperNode [2025-02-08 05:35:30,885 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:35:30,886 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:35:30,886 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:35:30,886 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:35:30,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:35:30" (1/1) ... [2025-02-08 05:35:30,902 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:35:30" (1/1) ... [2025-02-08 05:35:30,932 INFO L138 Inliner]: procedures = 272, calls = 110, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 418 [2025-02-08 05:35:30,932 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:35:30,932 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:35:30,933 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:35:30,933 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:35:30,942 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:35:30" (1/1) ... [2025-02-08 05:35:30,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:35:30" (1/1) ... [2025-02-08 05:35:30,951 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:35:30" (1/1) ... [2025-02-08 05:35:30,951 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:35:30" (1/1) ... [2025-02-08 05:35:30,964 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:35:30" (1/1) ... [2025-02-08 05:35:30,966 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:35:30" (1/1) ... [2025-02-08 05:35:30,968 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:35:30" (1/1) ... [2025-02-08 05:35:30,969 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:35:30" (1/1) ... [2025-02-08 05:35:30,972 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:35:30,972 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:35:30,972 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:35:30,972 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:35:30,973 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:35:30" (1/1) ... [2025-02-08 05:35:30,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:35:30,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:35:31,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 05:35:31,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 05:35:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 05:35:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 05:35:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 05:35:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-08 05:35:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-08 05:35:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 05:35:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:35:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-08 05:35:31,028 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-08 05:35:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:35:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:35:31,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:35:31,029 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 05:35:31,138 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:35:31,139 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:35:31,543 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L953: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2025-02-08 05:35:31,543 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L953-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2025-02-08 05:35:31,613 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:35:31,614 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:35:31,654 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 05:35:31,654 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 05:35:31,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:35:31 BoogieIcfgContainer [2025-02-08 05:35:31,654 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 05:35:31,656 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 05:35:31,656 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 05:35:31,659 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 05:35:31,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 05:35:30" (1/3) ... [2025-02-08 05:35:31,660 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fb77765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:35:31, skipping insertion in model container [2025-02-08 05:35:31,660 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:35:30" (2/3) ... [2025-02-08 05:35:31,660 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fb77765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 05:35:31, skipping insertion in model container [2025-02-08 05:35:31,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 05:35:31" (3/3) ... [2025-02-08 05:35:31,663 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_73-funloop_hard_racefree.i [2025-02-08 05:35:31,673 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 05:35:31,674 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_73-funloop_hard_racefree.i that has 2 procedures, 410 locations, 1 initial locations, 20 loop locations, and 17 error locations. [2025-02-08 05:35:31,674 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 05:35:31,751 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-02-08 05:35:31,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 413 places, 453 transitions, 913 flow [2025-02-08 05:35:31,931 INFO L124 PetriNetUnfolderBase]: 70/694 cut-off events. [2025-02-08 05:35:31,932 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-08 05:35:31,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 694 events. 70/694 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3508 event pairs, 0 based on Foata normal form. 0/592 useless extension candidates. Maximal degree in co-relation 359. Up to 8 conditions per place. [2025-02-08 05:35:31,943 INFO L82 GeneralOperation]: Start removeDead. Operand has 413 places, 453 transitions, 913 flow [2025-02-08 05:35:31,952 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 413 places, 453 transitions, 913 flow [2025-02-08 05:35:31,957 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:35:31,964 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;@2efbf9ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:35:31,965 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2025-02-08 05:35:31,977 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:35:31,977 INFO L124 PetriNetUnfolderBase]: 1/117 cut-off events. [2025-02-08 05:35:31,977 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:35:31,977 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:35:31,978 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] [2025-02-08 05:35:31,978 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-08 05:35:31,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:35:31,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1702817099, now seen corresponding path program 1 times [2025-02-08 05:35:31,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:35:31,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600276201] [2025-02-08 05:35:31,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:35:31,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:35:32,049 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-02-08 05:35:32,073 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-02-08 05:35:32,074 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:35:32,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:35:32,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:35:32,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:35:32,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600276201] [2025-02-08 05:35:32,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600276201] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:35:32,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:35:32,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 05:35:32,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622602285] [2025-02-08 05:35:32,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:35:32,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:35:32,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:35:32,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:35:32,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:35:32,277 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 453 [2025-02-08 05:35:32,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 453 transitions, 913 flow. Second operand has 3 states, 3 states have (on average 383.3333333333333) internal successors, (1150), 3 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:35:32,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:35:32,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 453 [2025-02-08 05:35:32,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:35:32,660 INFO L124 PetriNetUnfolderBase]: 181/2448 cut-off events. [2025-02-08 05:35:32,660 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2025-02-08 05:35:32,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2795 conditions, 2448 events. 181/2448 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 20392 event pairs, 136 based on Foata normal form. 453/2703 useless extension candidates. Maximal degree in co-relation 2450. Up to 340 conditions per place. [2025-02-08 05:35:32,678 INFO L140 encePairwiseOnDemand]: 414/453 looper letters, 31 selfloop transitions, 2 changer transitions 0/412 dead transitions. [2025-02-08 05:35:32,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 412 transitions, 897 flow [2025-02-08 05:35:32,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:35:32,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:35:32,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1216 transitions. [2025-02-08 05:35:32,692 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8947755702722591 [2025-02-08 05:35:32,693 INFO L175 Difference]: Start difference. First operand has 413 places, 453 transitions, 913 flow. Second operand 3 states and 1216 transitions. [2025-02-08 05:35:32,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 412 transitions, 897 flow [2025-02-08 05:35:32,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 412 transitions, 897 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:35:32,726 INFO L231 Difference]: Finished difference. Result has 410 places, 412 transitions, 841 flow [2025-02-08 05:35:32,728 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=829, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=841, PETRI_PLACES=410, PETRI_TRANSITIONS=412} [2025-02-08 05:35:32,731 INFO L279 CegarLoopForPetriNet]: 413 programPoint places, -3 predicate places. [2025-02-08 05:35:32,731 INFO L471 AbstractCegarLoop]: Abstraction has has 410 places, 412 transitions, 841 flow [2025-02-08 05:35:32,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 383.3333333333333) internal successors, (1150), 3 states have internal predecessors, (1150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:35:32,732 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:35:32,732 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, 1, 1, 1] [2025-02-08 05:35:32,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 05:35:32,732 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-08 05:35:32,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:35:32,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1614871829, now seen corresponding path program 1 times [2025-02-08 05:35:32,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:35:32,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370882410] [2025-02-08 05:35:32,734 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:35:32,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:35:32,750 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-02-08 05:35:32,764 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-02-08 05:35:32,764 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:35:32,764 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:35:32,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:35:32,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:35:32,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370882410] [2025-02-08 05:35:32,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370882410] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 05:35:32,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765025264] [2025-02-08 05:35:32,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:35:32,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:35:32,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:35:32,932 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:35:32,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 05:35:32,984 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-02-08 05:35:33,010 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-02-08 05:35:33,011 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:35:33,011 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:35:33,012 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 05:35:33,016 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:35:33,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:35:33,066 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:35:33,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:35:33,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765025264] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:35:33,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 05:35:33,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-02-08 05:35:33,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654724053] [2025-02-08 05:35:33,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 05:35:33,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 05:35:33,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:35:33,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 05:35:33,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-08 05:35:33,124 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 453 [2025-02-08 05:35:33,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 412 transitions, 841 flow. Second operand has 10 states, 10 states have (on average 380.8) internal successors, (3808), 10 states have internal predecessors, (3808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:35:33,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:35:33,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 453 [2025-02-08 05:35:33,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:35:33,480 INFO L124 PetriNetUnfolderBase]: 181/2455 cut-off events. [2025-02-08 05:35:33,481 INFO L125 PetriNetUnfolderBase]: For 8/9 co-relation queries the response was YES. [2025-02-08 05:35:33,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2821 conditions, 2455 events. 181/2455 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 20393 event pairs, 136 based on Foata normal form. 2/2259 useless extension candidates. Maximal degree in co-relation 2726. Up to 340 conditions per place. [2025-02-08 05:35:33,492 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 35 selfloop transitions, 9 changer transitions 0/420 dead transitions. [2025-02-08 05:35:33,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 420 transitions, 947 flow [2025-02-08 05:35:33,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 05:35:33,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 05:35:33,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3457 transitions. [2025-02-08 05:35:33,498 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8479273975962718 [2025-02-08 05:35:33,498 INFO L175 Difference]: Start difference. First operand has 410 places, 412 transitions, 841 flow. Second operand 9 states and 3457 transitions. [2025-02-08 05:35:33,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 420 transitions, 947 flow [2025-02-08 05:35:33,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 420 transitions, 945 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 05:35:33,504 INFO L231 Difference]: Finished difference. Result has 420 places, 418 transitions, 889 flow [2025-02-08 05:35:33,505 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=839, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=889, PETRI_PLACES=420, PETRI_TRANSITIONS=418} [2025-02-08 05:35:33,506 INFO L279 CegarLoopForPetriNet]: 413 programPoint places, 7 predicate places. [2025-02-08 05:35:33,506 INFO L471 AbstractCegarLoop]: Abstraction has has 420 places, 418 transitions, 889 flow [2025-02-08 05:35:33,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 380.8) internal successors, (3808), 10 states have internal predecessors, (3808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:35:33,508 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:35:33,509 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, 1, 1, 1] [2025-02-08 05:35:33,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-08 05:35:33,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:35:33,712 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-08 05:35:33,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:35:33,714 INFO L85 PathProgramCache]: Analyzing trace with hash -266010901, now seen corresponding path program 2 times [2025-02-08 05:35:33,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:35:33,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392975922] [2025-02-08 05:35:33,714 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:35:33,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:35:33,741 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 108 statements into 2 equivalence classes. [2025-02-08 05:35:33,750 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 93 of 108 statements. [2025-02-08 05:35:33,750 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:35:33,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:35:34,210 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-08 05:35:34,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:35:34,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392975922] [2025-02-08 05:35:34,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392975922] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:35:34,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:35:34,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:35:34,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482528686] [2025-02-08 05:35:34,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:35:34,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:35:34,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:35:34,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:35:34,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:35:34,560 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 453 [2025-02-08 05:35:34,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 418 transitions, 889 flow. Second operand has 6 states, 6 states have (on average 311.5) internal successors, (1869), 6 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:35:34,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:35:34,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 453 [2025-02-08 05:35:34,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:35:35,962 INFO L124 PetriNetUnfolderBase]: 2315/9255 cut-off events. [2025-02-08 05:35:35,963 INFO L125 PetriNetUnfolderBase]: For 11/14 co-relation queries the response was YES. [2025-02-08 05:35:35,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13840 conditions, 9255 events. 2315/9255 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 94467 event pairs, 1632 based on Foata normal form. 0/8469 useless extension candidates. Maximal degree in co-relation 13716. Up to 4323 conditions per place. [2025-02-08 05:35:36,006 INFO L140 encePairwiseOnDemand]: 426/453 looper letters, 135 selfloop transitions, 86 changer transitions 0/535 dead transitions. [2025-02-08 05:35:36,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 535 transitions, 1565 flow [2025-02-08 05:35:36,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 05:35:36,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 05:35:36,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2082 transitions. [2025-02-08 05:35:36,012 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7660044150110376 [2025-02-08 05:35:36,013 INFO L175 Difference]: Start difference. First operand has 420 places, 418 transitions, 889 flow. Second operand 6 states and 2082 transitions. [2025-02-08 05:35:36,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 535 transitions, 1565 flow [2025-02-08 05:35:36,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 535 transitions, 1559 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-02-08 05:35:36,024 INFO L231 Difference]: Finished difference. Result has 429 places, 503 transitions, 1449 flow [2025-02-08 05:35:36,024 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=883, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1449, PETRI_PLACES=429, PETRI_TRANSITIONS=503} [2025-02-08 05:35:36,025 INFO L279 CegarLoopForPetriNet]: 413 programPoint places, 16 predicate places. [2025-02-08 05:35:36,025 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 503 transitions, 1449 flow [2025-02-08 05:35:36,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 311.5) internal successors, (1869), 6 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:35:36,026 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:35:36,026 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:35:36,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 05:35:36,026 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-08 05:35:36,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:35:36,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1018413347, now seen corresponding path program 1 times [2025-02-08 05:35:36,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:35:36,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570621115] [2025-02-08 05:35:36,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:35:36,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:35:36,043 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-02-08 05:35:36,054 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-02-08 05:35:36,054 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:35:36,054 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:35:36,109 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-08 05:35:36,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:35:36,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570621115] [2025-02-08 05:35:36,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570621115] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:35:36,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:35:36,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 05:35:36,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012479502] [2025-02-08 05:35:36,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:35:36,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:35:36,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:35:36,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:35:36,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:35:36,130 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 453 [2025-02-08 05:35:36,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 503 transitions, 1449 flow. Second operand has 3 states, 3 states have (on average 384.0) internal successors, (1152), 3 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:35:36,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:35:36,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 453 [2025-02-08 05:35:36,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:35:36,470 INFO L124 PetriNetUnfolderBase]: 349/3111 cut-off events. [2025-02-08 05:35:36,470 INFO L125 PetriNetUnfolderBase]: For 158/183 co-relation queries the response was YES. [2025-02-08 05:35:36,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4179 conditions, 3111 events. 349/3111 cut-off events. For 158/183 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 28114 event pairs, 152 based on Foata normal form. 1/2858 useless extension candidates. Maximal degree in co-relation 4053. Up to 410 conditions per place. [2025-02-08 05:35:36,487 INFO L140 encePairwiseOnDemand]: 450/453 looper letters, 38 selfloop transitions, 3 changer transitions 0/511 dead transitions. [2025-02-08 05:35:36,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 511 transitions, 1547 flow [2025-02-08 05:35:36,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:35:36,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:35:36,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1187 transitions. [2025-02-08 05:35:36,491 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8734363502575423 [2025-02-08 05:35:36,491 INFO L175 Difference]: Start difference. First operand has 429 places, 503 transitions, 1449 flow. Second operand 3 states and 1187 transitions. [2025-02-08 05:35:36,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 511 transitions, 1547 flow [2025-02-08 05:35:36,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 431 places, 511 transitions, 1547 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:35:36,503 INFO L231 Difference]: Finished difference. Result has 432 places, 503 transitions, 1460 flow [2025-02-08 05:35:36,503 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=1449, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=503, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=500, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1460, PETRI_PLACES=432, PETRI_TRANSITIONS=503} [2025-02-08 05:35:36,505 INFO L279 CegarLoopForPetriNet]: 413 programPoint places, 19 predicate places. [2025-02-08 05:35:36,505 INFO L471 AbstractCegarLoop]: Abstraction has has 432 places, 503 transitions, 1460 flow [2025-02-08 05:35:36,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 384.0) internal successors, (1152), 3 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:35:36,506 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:35:36,506 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:35:36,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 05:35:36,506 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-08 05:35:36,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:35:36,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1060010204, now seen corresponding path program 1 times [2025-02-08 05:35:36,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:35:36,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993549962] [2025-02-08 05:35:36,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:35:36,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:35:36,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-02-08 05:35:36,529 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-02-08 05:35:36,530 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:35:36,530 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:35:36,703 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:35:36,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:35:36,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993549962] [2025-02-08 05:35:36,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993549962] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 05:35:36,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120331170] [2025-02-08 05:35:36,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:35:36,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:35:36,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:35:36,710 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:35:36,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 05:35:36,761 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-02-08 05:35:36,787 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-02-08 05:35:36,787 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:35:36,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:35:36,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 05:35:36,791 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:35:36,830 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:35:36,830 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:35:36,906 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:35:36,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120331170] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:35:36,909 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 05:35:36,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-02-08 05:35:36,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982414670] [2025-02-08 05:35:36,909 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 05:35:36,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-08 05:35:36,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:35:36,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-08 05:35:36,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-02-08 05:35:36,938 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 453 [2025-02-08 05:35:36,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 503 transitions, 1460 flow. Second operand has 18 states, 18 states have (on average 380.94444444444446) internal successors, (6857), 18 states have internal predecessors, (6857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:35:36,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:35:36,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 453 [2025-02-08 05:35:36,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:35:37,449 INFO L124 PetriNetUnfolderBase]: 329/3111 cut-off events. [2025-02-08 05:35:37,450 INFO L125 PetriNetUnfolderBase]: For 171/214 co-relation queries the response was YES. [2025-02-08 05:35:37,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4367 conditions, 3111 events. 329/3111 cut-off events. For 171/214 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 28084 event pairs, 136 based on Foata normal form. 4/2877 useless extension candidates. Maximal degree in co-relation 4165. Up to 416 conditions per place. [2025-02-08 05:35:37,473 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 39 selfloop transitions, 21 changer transitions 0/521 dead transitions. [2025-02-08 05:35:37,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 521 transitions, 1668 flow [2025-02-08 05:35:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-08 05:35:37,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-02-08 05:35:37,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 8023 transitions. [2025-02-08 05:35:37,498 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8433722274781877 [2025-02-08 05:35:37,501 INFO L175 Difference]: Start difference. First operand has 432 places, 503 transitions, 1460 flow. Second operand 21 states and 8023 transitions. [2025-02-08 05:35:37,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 521 transitions, 1668 flow [2025-02-08 05:35:37,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 450 places, 521 transitions, 1662 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 05:35:37,518 INFO L231 Difference]: Finished difference. Result has 455 places, 516 transitions, 1584 flow [2025-02-08 05:35:37,520 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=1454, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=503, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1584, PETRI_PLACES=455, PETRI_TRANSITIONS=516} [2025-02-08 05:35:37,520 INFO L279 CegarLoopForPetriNet]: 413 programPoint places, 42 predicate places. [2025-02-08 05:35:37,520 INFO L471 AbstractCegarLoop]: Abstraction has has 455 places, 516 transitions, 1584 flow [2025-02-08 05:35:37,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 380.94444444444446) internal successors, (6857), 18 states have internal predecessors, (6857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:35:37,525 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:35:37,525 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:35:37,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 05:35:37,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:35:37,730 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-08 05:35:37,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:35:37,731 INFO L85 PathProgramCache]: Analyzing trace with hash -785088292, now seen corresponding path program 2 times [2025-02-08 05:35:37,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:35:37,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771144732] [2025-02-08 05:35:37,731 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:35:37,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:35:37,743 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 143 statements into 2 equivalence classes. [2025-02-08 05:35:37,756 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 143 of 143 statements. [2025-02-08 05:35:37,756 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 05:35:37,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:35:38,056 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:35:38,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:35:38,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771144732] [2025-02-08 05:35:38,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771144732] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 05:35:38,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334702780] [2025-02-08 05:35:38,056 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:35:38,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:35:38,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:35:38,059 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 05:35:38,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 05:35:38,124 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 143 statements into 2 equivalence classes. [2025-02-08 05:35:38,168 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 143 of 143 statements. [2025-02-08 05:35:38,168 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 05:35:38,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:35:38,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-08 05:35:38,173 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:35:38,257 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:35:38,257 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:35:38,457 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:35:38,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334702780] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:35:38,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 05:35:38,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-02-08 05:35:38,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865372816] [2025-02-08 05:35:38,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 05:35:38,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-08 05:35:38,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:35:38,459 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-08 05:35:38,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-02-08 05:35:38,492 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 453 [2025-02-08 05:35:38,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 455 places, 516 transitions, 1584 flow. Second operand has 23 states, 23 states have (on average 381.04347826086956) internal successors, (8764), 23 states have internal predecessors, (8764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:35:38,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:35:38,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 453 [2025-02-08 05:35:38,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:35:39,217 INFO L124 PetriNetUnfolderBase]: 329/3126 cut-off events. [2025-02-08 05:35:39,217 INFO L125 PetriNetUnfolderBase]: For 272/315 co-relation queries the response was YES. [2025-02-08 05:35:39,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4467 conditions, 3126 events. 329/3126 cut-off events. For 272/315 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 28028 event pairs, 136 based on Foata normal form. 3/2891 useless extension candidates. Maximal degree in co-relation 4165. Up to 416 conditions per place. [2025-02-08 05:35:39,236 INFO L140 encePairwiseOnDemand]: 447/453 looper letters, 42 selfloop transitions, 30 changer transitions 0/533 dead transitions. [2025-02-08 05:35:39,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 484 places, 533 transitions, 1856 flow [2025-02-08 05:35:39,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-02-08 05:35:39,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-02-08 05:35:39,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 11445 transitions. [2025-02-08 05:35:39,255 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8421633554083885 [2025-02-08 05:35:39,256 INFO L175 Difference]: Start difference. First operand has 455 places, 516 transitions, 1584 flow. Second operand 30 states and 11445 transitions. [2025-02-08 05:35:39,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 484 places, 533 transitions, 1856 flow [2025-02-08 05:35:39,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 533 transitions, 1826 flow, removed 9 selfloop flow, removed 6 redundant places. [2025-02-08 05:35:39,267 INFO L231 Difference]: Finished difference. Result has 482 places, 526 transitions, 1712 flow [2025-02-08 05:35:39,267 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=453, PETRI_DIFFERENCE_MINUEND_FLOW=1560, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=516, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=493, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1712, PETRI_PLACES=482, PETRI_TRANSITIONS=526} [2025-02-08 05:35:39,268 INFO L279 CegarLoopForPetriNet]: 413 programPoint places, 69 predicate places. [2025-02-08 05:35:39,268 INFO L471 AbstractCegarLoop]: Abstraction has has 482 places, 526 transitions, 1712 flow [2025-02-08 05:35:39,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 381.04347826086956) internal successors, (8764), 23 states have internal predecessors, (8764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:35:39,270 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:35:39,271 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 05:35:39,277 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 [2025-02-08 05:35:39,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:35:39,475 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2025-02-08 05:35:39,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:35:39,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1706628484, now seen corresponding path program 3 times [2025-02-08 05:35:39,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:35:39,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183063213] [2025-02-08 05:35:39,480 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 05:35:39,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:35:39,520 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 158 statements into 11 equivalence classes. [2025-02-08 05:35:39,569 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 158 of 158 statements. [2025-02-08 05:35:39,570 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-02-08 05:35:39,570 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:35:39,570 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 05:35:39,575 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-02-08 05:35:39,589 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-02-08 05:35:39,590 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:35:39,590 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 05:35:39,613 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 05:35:39,614 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 05:35:39,615 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2025-02-08 05:35:39,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (21 of 23 remaining) [2025-02-08 05:35:39,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 23 remaining) [2025-02-08 05:35:39,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 23 remaining) [2025-02-08 05:35:39,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (18 of 23 remaining) [2025-02-08 05:35:39,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 23 remaining) [2025-02-08 05:35:39,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (16 of 23 remaining) [2025-02-08 05:35:39,616 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (15 of 23 remaining) [2025-02-08 05:35:39,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (14 of 23 remaining) [2025-02-08 05:35:39,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 23 remaining) [2025-02-08 05:35:39,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 23 remaining) [2025-02-08 05:35:39,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (11 of 23 remaining) [2025-02-08 05:35:39,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (10 of 23 remaining) [2025-02-08 05:35:39,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 23 remaining) [2025-02-08 05:35:39,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 23 remaining) [2025-02-08 05:35:39,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (7 of 23 remaining) [2025-02-08 05:35:39,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 23 remaining) [2025-02-08 05:35:39,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 23 remaining) [2025-02-08 05:35:39,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 23 remaining) [2025-02-08 05:35:39,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 23 remaining) [2025-02-08 05:35:39,617 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 23 remaining) [2025-02-08 05:35:39,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 23 remaining) [2025-02-08 05:35:39,618 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 23 remaining) [2025-02-08 05:35:39,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 05:35:39,618 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1] [2025-02-08 05:35:39,620 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 05:35:39,620 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-08 05:35:39,705 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-08 05:35:39,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 517 places, 570 transitions, 1156 flow [2025-02-08 05:35:39,822 INFO L124 PetriNetUnfolderBase]: 113/1079 cut-off events. [2025-02-08 05:35:39,822 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-08 05:35:39,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1091 conditions, 1079 events. 113/1079 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6404 event pairs, 0 based on Foata normal form. 0/915 useless extension candidates. Maximal degree in co-relation 696. Up to 12 conditions per place. [2025-02-08 05:35:39,833 INFO L82 GeneralOperation]: Start removeDead. Operand has 517 places, 570 transitions, 1156 flow [2025-02-08 05:35:39,840 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 517 places, 570 transitions, 1156 flow [2025-02-08 05:35:39,841 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 05:35:39,841 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;@2efbf9ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 05:35:39,841 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2025-02-08 05:35:39,846 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 05:35:39,846 INFO L124 PetriNetUnfolderBase]: 1/117 cut-off events. [2025-02-08 05:35:39,846 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 05:35:39,846 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:35:39,846 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] [2025-02-08 05:35:39,846 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2025-02-08 05:35:39,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:35:39,847 INFO L85 PathProgramCache]: Analyzing trace with hash -792542715, now seen corresponding path program 1 times [2025-02-08 05:35:39,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:35:39,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501781753] [2025-02-08 05:35:39,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:35:39,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:35:39,853 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-02-08 05:35:39,856 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-02-08 05:35:39,856 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:35:39,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:35:39,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:35:39,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:35:39,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501781753] [2025-02-08 05:35:39,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501781753] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:35:39,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:35:39,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 05:35:39,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86906325] [2025-02-08 05:35:39,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:35:39,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 05:35:39,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:35:39,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 05:35:39,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 05:35:39,919 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 476 out of 570 [2025-02-08 05:35:39,920 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 517 places, 570 transitions, 1156 flow. Second operand has 3 states, 3 states have (on average 477.3333333333333) internal successors, (1432), 3 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:35:39,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:35:39,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 476 of 570 [2025-02-08 05:35:39,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:35:42,779 INFO L124 PetriNetUnfolderBase]: 3251/23508 cut-off events. [2025-02-08 05:35:42,779 INFO L125 PetriNetUnfolderBase]: For 153/157 co-relation queries the response was YES. [2025-02-08 05:35:42,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28288 conditions, 23508 events. 3251/23508 cut-off events. For 153/157 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 320250 event pairs, 2680 based on Foata normal form. 6277/27918 useless extension candidates. Maximal degree in co-relation 25286. Up to 4707 conditions per place. [2025-02-08 05:35:43,018 INFO L140 encePairwiseOnDemand]: 519/570 looper letters, 41 selfloop transitions, 2 changer transitions 0/515 dead transitions. [2025-02-08 05:35:43,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 511 places, 515 transitions, 1132 flow [2025-02-08 05:35:43,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 05:35:43,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 05:35:43,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1520 transitions. [2025-02-08 05:35:43,028 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2025-02-08 05:35:43,028 INFO L175 Difference]: Start difference. First operand has 517 places, 570 transitions, 1156 flow. Second operand 3 states and 1520 transitions. [2025-02-08 05:35:43,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 511 places, 515 transitions, 1132 flow [2025-02-08 05:35:43,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 511 places, 515 transitions, 1132 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 05:35:43,043 INFO L231 Difference]: Finished difference. Result has 512 places, 515 transitions, 1056 flow [2025-02-08 05:35:43,048 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=570, PETRI_DIFFERENCE_MINUEND_FLOW=1044, PETRI_DIFFERENCE_MINUEND_PLACES=509, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=514, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=512, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1056, PETRI_PLACES=512, PETRI_TRANSITIONS=515} [2025-02-08 05:35:43,049 INFO L279 CegarLoopForPetriNet]: 517 programPoint places, -5 predicate places. [2025-02-08 05:35:43,049 INFO L471 AbstractCegarLoop]: Abstraction has has 512 places, 515 transitions, 1056 flow [2025-02-08 05:35:43,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 477.3333333333333) internal successors, (1432), 3 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:35:43,049 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:35:43,050 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, 1, 1, 1] [2025-02-08 05:35:43,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 05:35:43,050 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2025-02-08 05:35:43,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:35:43,050 INFO L85 PathProgramCache]: Analyzing trace with hash -409917909, now seen corresponding path program 1 times [2025-02-08 05:35:43,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:35:43,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225128041] [2025-02-08 05:35:43,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:35:43,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:35:43,072 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-02-08 05:35:43,080 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-02-08 05:35:43,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:35:43,085 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:35:43,200 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:35:43,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:35:43,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225128041] [2025-02-08 05:35:43,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225128041] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 05:35:43,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323206088] [2025-02-08 05:35:43,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 05:35:43,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 05:35:43,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:35:43,208 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) [2025-02-08 05:35:43,209 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 [2025-02-08 05:35:43,276 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-02-08 05:35:43,304 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-02-08 05:35:43,305 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 05:35:43,305 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:35:43,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 05:35:43,308 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 05:35:43,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:35:43,338 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 05:35:43,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 05:35:43,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323206088] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 05:35:43,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 05:35:43,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-02-08 05:35:43,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284976] [2025-02-08 05:35:43,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 05:35:43,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 05:35:43,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:35:43,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 05:35:43,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-08 05:35:43,409 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 473 out of 570 [2025-02-08 05:35:43,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 515 transitions, 1056 flow. Second operand has 10 states, 10 states have (on average 474.8) internal successors, (4748), 10 states have internal predecessors, (4748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:35:43,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:35:43,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 473 of 570 [2025-02-08 05:35:43,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 05:35:46,741 INFO L124 PetriNetUnfolderBase]: 3251/23515 cut-off events. [2025-02-08 05:35:46,741 INFO L125 PetriNetUnfolderBase]: For 150/154 co-relation queries the response was YES. [2025-02-08 05:35:46,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28314 conditions, 23515 events. 3251/23515 cut-off events. For 150/154 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 320360 event pairs, 2680 based on Foata normal form. 2/21650 useless extension candidates. Maximal degree in co-relation 28218. Up to 4707 conditions per place. [2025-02-08 05:35:46,957 INFO L140 encePairwiseOnDemand]: 564/570 looper letters, 45 selfloop transitions, 9 changer transitions 0/523 dead transitions. [2025-02-08 05:35:46,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 520 places, 523 transitions, 1182 flow [2025-02-08 05:35:46,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-08 05:35:46,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-08 05:35:46,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4313 transitions. [2025-02-08 05:35:46,970 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8407407407407408 [2025-02-08 05:35:46,972 INFO L175 Difference]: Start difference. First operand has 512 places, 515 transitions, 1056 flow. Second operand 9 states and 4313 transitions. [2025-02-08 05:35:46,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 520 places, 523 transitions, 1182 flow [2025-02-08 05:35:46,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 519 places, 523 transitions, 1180 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 05:35:46,990 INFO L231 Difference]: Finished difference. Result has 522 places, 521 transitions, 1104 flow [2025-02-08 05:35:46,991 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=570, PETRI_DIFFERENCE_MINUEND_FLOW=1054, PETRI_DIFFERENCE_MINUEND_PLACES=511, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=515, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=509, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1104, PETRI_PLACES=522, PETRI_TRANSITIONS=521} [2025-02-08 05:35:46,991 INFO L279 CegarLoopForPetriNet]: 517 programPoint places, 5 predicate places. [2025-02-08 05:35:46,991 INFO L471 AbstractCegarLoop]: Abstraction has has 522 places, 521 transitions, 1104 flow [2025-02-08 05:35:46,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 474.8) internal successors, (4748), 10 states have internal predecessors, (4748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:35:46,997 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 05:35:46,998 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, 1, 1, 1] [2025-02-08 05:35:47,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-08 05:35:47,198 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,SelfDestructingSolverStorable8 [2025-02-08 05:35:47,201 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2025-02-08 05:35:47,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 05:35:47,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1542629781, now seen corresponding path program 2 times [2025-02-08 05:35:47,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 05:35:47,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857152790] [2025-02-08 05:35:47,205 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 05:35:47,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 05:35:47,220 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 108 statements into 2 equivalence classes. [2025-02-08 05:35:47,225 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 93 of 108 statements. [2025-02-08 05:35:47,225 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 05:35:47,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 05:35:47,522 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-08 05:35:47,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 05:35:47,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857152790] [2025-02-08 05:35:47,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857152790] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 05:35:47,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 05:35:47,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 05:35:47,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618325164] [2025-02-08 05:35:47,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 05:35:47,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 05:35:47,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 05:35:47,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 05:35:47,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 05:35:47,986 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 570 [2025-02-08 05:35:47,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 522 places, 521 transitions, 1104 flow. Second operand has 6 states, 6 states have (on average 385.5) internal successors, (2313), 6 states have internal predecessors, (2313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 05:35:47,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 05:35:47,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 570 [2025-02-08 05:35:47,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand