./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/08_rand_cas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version c00e63dc 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/pthread-ext/08_rand_cas.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 111430583c5cad5728291a83d9964586feec908088fcc502d1f1ab24d409725c --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 08:58:24,509 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 08:58:24,558 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 08:58:24,562 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 08:58:24,562 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 08:58:24,576 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 08:58:24,577 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 08:58:24,577 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 08:58:24,577 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 08:58:24,577 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 08:58:24,578 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 08:58:24,578 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 08:58:24,578 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 08:58:24,578 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 08:58:24,578 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 08:58:24,578 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 08:58:24,578 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 08:58:24,578 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 08:58:24,578 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 08:58:24,578 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 08:58:24,579 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 08:58:24,579 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 08:58:24,579 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 08:58:24,579 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 08:58:24,579 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 08:58:24,579 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 08:58:24,579 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 08:58:24,579 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 08:58:24,579 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 08:58:24,579 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 08:58:24,579 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 08:58:24,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 08:58:24,580 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 08:58:24,580 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 08:58:24,580 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 08:58:24,580 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 08:58:24,580 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 08:58:24,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 08:58:24,580 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 08:58:24,580 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 08:58:24,580 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 08:58:24,580 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 08:58:24,581 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 -> 111430583c5cad5728291a83d9964586feec908088fcc502d1f1ab24d409725c [2025-02-06 08:58:24,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 08:58:24,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 08:58:24,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 08:58:24,813 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 08:58:24,813 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 08:58:24,814 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/08_rand_cas.i [2025-02-06 08:58:26,093 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1b100e1d3/c8e36fabd4ad47809c649f257c40f44c/FLAGd4c17ce19 [2025-02-06 08:58:26,349 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 08:58:26,350 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/08_rand_cas.i [2025-02-06 08:58:26,360 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1b100e1d3/c8e36fabd4ad47809c649f257c40f44c/FLAGd4c17ce19 [2025-02-06 08:58:26,374 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1b100e1d3/c8e36fabd4ad47809c649f257c40f44c [2025-02-06 08:58:26,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 08:58:26,377 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 08:58:26,378 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 08:58:26,380 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 08:58:26,383 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 08:58:26,384 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 08:58:26" (1/1) ... [2025-02-06 08:58:26,384 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69a54597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:26, skipping insertion in model container [2025-02-06 08:58:26,384 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 08:58:26" (1/1) ... [2025-02-06 08:58:26,416 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 08:58:26,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 08:58:26,669 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 08:58:26,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 08:58:26,746 INFO L204 MainTranslator]: Completed translation [2025-02-06 08:58:26,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:26 WrapperNode [2025-02-06 08:58:26,747 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 08:58:26,747 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 08:58:26,747 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 08:58:26,747 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 08:58:26,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:26" (1/1) ... [2025-02-06 08:58:26,766 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:26" (1/1) ... [2025-02-06 08:58:26,790 INFO L138 Inliner]: procedures = 178, calls = 38, calls flagged for inlining = 16, calls inlined = 17, statements flattened = 214 [2025-02-06 08:58:26,790 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 08:58:26,791 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 08:58:26,791 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 08:58:26,791 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 08:58:26,796 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:26" (1/1) ... [2025-02-06 08:58:26,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:26" (1/1) ... [2025-02-06 08:58:26,799 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:26" (1/1) ... [2025-02-06 08:58:26,799 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:26" (1/1) ... [2025-02-06 08:58:26,806 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:26" (1/1) ... [2025-02-06 08:58:26,807 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:26" (1/1) ... [2025-02-06 08:58:26,808 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:26" (1/1) ... [2025-02-06 08:58:26,809 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:26" (1/1) ... [2025-02-06 08:58:26,811 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 08:58:26,812 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 08:58:26,812 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 08:58:26,812 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 08:58:26,812 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:26" (1/1) ... [2025-02-06 08:58:26,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 08:58:26,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 08:58:26,836 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) [2025-02-06 08:58:26,838 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 [2025-02-06 08:58:26,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 08:58:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-06 08:58:26,854 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-06 08:58:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 08:58:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 08:58:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 08:58:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 08:58:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 08:58:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 08:58:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 08:58:26,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 08:58:26,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 08:58:26,855 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 08:58:26,934 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 08:58:26,935 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 08:58:27,197 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L728: havoc PseudoRandomUsingAtomic_nextInt_~#casret~0#1.base, PseudoRandomUsingAtomic_nextInt_~#casret~0#1.offset; [2025-02-06 08:58:27,198 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L728-1: SUMMARY for call ULTIMATE.dealloc(PseudoRandomUsingAtomic_nextInt_~#casret~0#1.base, PseudoRandomUsingAtomic_nextInt_~#casret~0#1.offset); srcloc: null [2025-02-06 08:58:27,229 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 08:58:27,229 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 08:58:27,400 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 08:58:27,401 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 08:58:27,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 08:58:27 BoogieIcfgContainer [2025-02-06 08:58:27,402 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 08:58:27,405 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 08:58:27,405 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 08:58:27,409 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 08:58:27,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 08:58:26" (1/3) ... [2025-02-06 08:58:27,410 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d38e511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 08:58:27, skipping insertion in model container [2025-02-06 08:58:27,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 08:58:26" (2/3) ... [2025-02-06 08:58:27,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d38e511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 08:58:27, skipping insertion in model container [2025-02-06 08:58:27,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 08:58:27" (3/3) ... [2025-02-06 08:58:27,412 INFO L128 eAbstractionObserver]: Analyzing ICFG 08_rand_cas.i [2025-02-06 08:58:27,423 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 08:58:27,426 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 08_rand_cas.i that has 2 procedures, 147 locations, 1 initial locations, 4 loop locations, and 16 error locations. [2025-02-06 08:58:27,426 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 08:58:27,508 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 08:58:27,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 160 transitions, 324 flow [2025-02-06 08:58:27,640 INFO L124 PetriNetUnfolderBase]: 13/167 cut-off events. [2025-02-06 08:58:27,642 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 08:58:27,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 167 events. 13/167 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 332 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 144. Up to 3 conditions per place. [2025-02-06 08:58:27,646 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 160 transitions, 324 flow [2025-02-06 08:58:27,649 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 160 transitions, 324 flow [2025-02-06 08:58:27,657 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 08:58:27,665 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;@5e423b75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 08:58:27,665 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2025-02-06 08:58:27,670 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 08:58:27,670 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2025-02-06 08:58:27,670 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 08:58:27,670 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:27,671 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] [2025-02-06 08:58:27,671 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2025-02-06 08:58:27,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:27,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1818585650, now seen corresponding path program 1 times [2025-02-06 08:58:27,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:27,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891195747] [2025-02-06 08:58:27,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:27,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:27,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 08:58:27,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 08:58:27,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:27,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:58:27,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:58:27,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:58:27,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891195747] [2025-02-06 08:58:27,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891195747] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:58:27,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:58:27,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 08:58:27,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027371135] [2025-02-06 08:58:27,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:58:27,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 08:58:27,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:58:27,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 08:58:27,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 08:58:27,884 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 160 [2025-02-06 08:58:27,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 160 transitions, 324 flow. Second operand has 2 states, 2 states have (on average 129.0) internal successors, (258), 2 states have internal predecessors, (258), 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) [2025-02-06 08:58:27,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:58:27,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 160 [2025-02-06 08:58:27,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:58:27,974 INFO L124 PetriNetUnfolderBase]: 4/131 cut-off events. [2025-02-06 08:58:27,975 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 08:58:27,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 131 events. 4/131 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 121 event pairs, 0 based on Foata normal form. 16/136 useless extension candidates. Maximal degree in co-relation 118. Up to 8 conditions per place. [2025-02-06 08:58:27,979 INFO L140 encePairwiseOnDemand]: 138/160 looper letters, 7 selfloop transitions, 0 changer transitions 0/128 dead transitions. [2025-02-06 08:58:27,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 128 transitions, 274 flow [2025-02-06 08:58:27,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 08:58:27,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 08:58:27,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 285 transitions. [2025-02-06 08:58:27,989 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.890625 [2025-02-06 08:58:27,990 INFO L175 Difference]: Start difference. First operand has 150 places, 160 transitions, 324 flow. Second operand 2 states and 285 transitions. [2025-02-06 08:58:27,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 128 transitions, 274 flow [2025-02-06 08:58:27,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 128 transitions, 274 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 08:58:27,997 INFO L231 Difference]: Finished difference. Result has 128 places, 128 transitions, 260 flow [2025-02-06 08:58:27,999 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=260, PETRI_PLACES=128, PETRI_TRANSITIONS=128} [2025-02-06 08:58:28,001 INFO L279 CegarLoopForPetriNet]: 150 programPoint places, -22 predicate places. [2025-02-06 08:58:28,002 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 128 transitions, 260 flow [2025-02-06 08:58:28,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 129.0) internal successors, (258), 2 states have internal predecessors, (258), 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) [2025-02-06 08:58:28,002 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:28,002 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] [2025-02-06 08:58:28,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 08:58:28,003 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err13ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2025-02-06 08:58:28,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:28,003 INFO L85 PathProgramCache]: Analyzing trace with hash 390899922, now seen corresponding path program 1 times [2025-02-06 08:58:28,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:28,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798636400] [2025-02-06 08:58:28,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:28,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:28,012 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 08:58:28,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 08:58:28,020 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:28,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:58:28,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:58:28,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:58:28,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798636400] [2025-02-06 08:58:28,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798636400] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:58:28,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:58:28,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 08:58:28,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147402005] [2025-02-06 08:58:28,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:58:28,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 08:58:28,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:58:28,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 08:58:28,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 08:58:28,079 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 160 [2025-02-06 08:58:28,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 128 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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) [2025-02-06 08:58:28,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:58:28,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 160 [2025-02-06 08:58:28,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:58:28,124 INFO L124 PetriNetUnfolderBase]: 4/130 cut-off events. [2025-02-06 08:58:28,125 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-02-06 08:58:28,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 130 events. 4/130 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 117 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 142. Up to 6 conditions per place. [2025-02-06 08:58:28,127 INFO L140 encePairwiseOnDemand]: 157/160 looper letters, 8 selfloop transitions, 2 changer transitions 0/127 dead transitions. [2025-02-06 08:58:28,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 127 transitions, 278 flow [2025-02-06 08:58:28,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 08:58:28,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 08:58:28,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 383 transitions. [2025-02-06 08:58:28,133 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7979166666666667 [2025-02-06 08:58:28,133 INFO L175 Difference]: Start difference. First operand has 128 places, 128 transitions, 260 flow. Second operand 3 states and 383 transitions. [2025-02-06 08:58:28,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 127 transitions, 278 flow [2025-02-06 08:58:28,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 127 transitions, 278 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 08:58:28,138 INFO L231 Difference]: Finished difference. Result has 129 places, 127 transitions, 262 flow [2025-02-06 08:58:28,139 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=262, PETRI_PLACES=129, PETRI_TRANSITIONS=127} [2025-02-06 08:58:28,140 INFO L279 CegarLoopForPetriNet]: 150 programPoint places, -21 predicate places. [2025-02-06 08:58:28,140 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 127 transitions, 262 flow [2025-02-06 08:58:28,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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) [2025-02-06 08:58:28,140 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:28,141 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:58:28,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 08:58:28,141 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2025-02-06 08:58:28,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:28,142 INFO L85 PathProgramCache]: Analyzing trace with hash 584832122, now seen corresponding path program 1 times [2025-02-06 08:58:28,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:28,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386497063] [2025-02-06 08:58:28,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:28,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:28,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 08:58:28,161 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 08:58:28,161 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:28,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:28,161 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 08:58:28,163 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 08:58:28,166 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 08:58:28,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:28,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:28,181 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 08:58:28,183 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 08:58:28,184 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2025-02-06 08:58:28,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2025-02-06 08:58:28,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2025-02-06 08:58:28,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2025-02-06 08:58:28,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2025-02-06 08:58:28,186 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2025-02-06 08:58:28,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2025-02-06 08:58:28,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2025-02-06 08:58:28,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2025-02-06 08:58:28,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2025-02-06 08:58:28,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2025-02-06 08:58:28,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2025-02-06 08:58:28,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2025-02-06 08:58:28,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2025-02-06 08:58:28,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2025-02-06 08:58:28,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2025-02-06 08:58:28,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2025-02-06 08:58:28,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2025-02-06 08:58:28,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2025-02-06 08:58:28,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2025-02-06 08:58:28,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2025-02-06 08:58:28,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2025-02-06 08:58:28,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2025-02-06 08:58:28,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2025-02-06 08:58:28,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2025-02-06 08:58:28,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2025-02-06 08:58:28,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2025-02-06 08:58:28,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2025-02-06 08:58:28,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2025-02-06 08:58:28,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2025-02-06 08:58:28,189 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2025-02-06 08:58:28,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2025-02-06 08:58:28,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2025-02-06 08:58:28,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 08:58:28,191 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-06 08:58:28,193 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 08:58:28,194 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-06 08:58:28,266 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 08:58:28,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 296 transitions, 602 flow [2025-02-06 08:58:28,350 INFO L124 PetriNetUnfolderBase]: 26/312 cut-off events. [2025-02-06 08:58:28,350 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-06 08:58:28,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 312 events. 26/312 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1129 event pairs, 0 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 279. Up to 3 conditions per place. [2025-02-06 08:58:28,355 INFO L82 GeneralOperation]: Start removeDead. Operand has 275 places, 296 transitions, 602 flow [2025-02-06 08:58:28,359 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 275 places, 296 transitions, 602 flow [2025-02-06 08:58:28,361 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 08:58:28,361 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;@5e423b75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 08:58:28,361 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2025-02-06 08:58:28,363 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 08:58:28,364 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-02-06 08:58:28,365 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 08:58:28,365 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:28,365 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] [2025-02-06 08:58:28,365 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-02-06 08:58:28,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:28,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1451109515, now seen corresponding path program 1 times [2025-02-06 08:58:28,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:28,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971346315] [2025-02-06 08:58:28,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:28,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:28,377 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 08:58:28,382 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 08:58:28,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:28,383 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:58:28,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:58:28,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:58:28,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971346315] [2025-02-06 08:58:28,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971346315] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:58:28,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:58:28,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 08:58:28,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969003514] [2025-02-06 08:58:28,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:58:28,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 08:58:28,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:58:28,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 08:58:28,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 08:58:28,402 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 296 [2025-02-06 08:58:28,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 296 transitions, 602 flow. Second operand has 2 states, 2 states have (on average 234.0) internal successors, (468), 2 states have internal predecessors, (468), 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) [2025-02-06 08:58:28,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:58:28,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 296 [2025-02-06 08:58:28,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:58:28,617 INFO L124 PetriNetUnfolderBase]: 78/1028 cut-off events. [2025-02-06 08:58:28,618 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2025-02-06 08:58:28,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1153 conditions, 1028 events. 78/1028 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 6555 event pairs, 42 based on Foata normal form. 176/1095 useless extension candidates. Maximal degree in co-relation 975. Up to 99 conditions per place. [2025-02-06 08:58:28,628 INFO L140 encePairwiseOnDemand]: 253/296 looper letters, 14 selfloop transitions, 0 changer transitions 0/236 dead transitions. [2025-02-06 08:58:28,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 236 transitions, 510 flow [2025-02-06 08:58:28,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 08:58:28,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 08:58:28,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 523 transitions. [2025-02-06 08:58:28,630 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8834459459459459 [2025-02-06 08:58:28,630 INFO L175 Difference]: Start difference. First operand has 275 places, 296 transitions, 602 flow. Second operand 2 states and 523 transitions. [2025-02-06 08:58:28,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 236 transitions, 510 flow [2025-02-06 08:58:28,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 236 transitions, 510 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 08:58:28,635 INFO L231 Difference]: Finished difference. Result has 234 places, 236 transitions, 482 flow [2025-02-06 08:58:28,637 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=482, PETRI_PLACES=234, PETRI_TRANSITIONS=236} [2025-02-06 08:58:28,638 INFO L279 CegarLoopForPetriNet]: 275 programPoint places, -41 predicate places. [2025-02-06 08:58:28,638 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 236 transitions, 482 flow [2025-02-06 08:58:28,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 234.0) internal successors, (468), 2 states have internal predecessors, (468), 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) [2025-02-06 08:58:28,639 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:28,639 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] [2025-02-06 08:58:28,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 08:58:28,639 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err13ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-02-06 08:58:28,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:28,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1348161177, now seen corresponding path program 1 times [2025-02-06 08:58:28,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:28,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315604810] [2025-02-06 08:58:28,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:28,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:28,650 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 08:58:28,657 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 08:58:28,661 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:28,662 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:58:28,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:58:28,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:58:28,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315604810] [2025-02-06 08:58:28,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315604810] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:58:28,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:58:28,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 08:58:28,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045263241] [2025-02-06 08:58:28,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:58:28,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 08:58:28,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:58:28,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 08:58:28,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 08:58:28,707 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 296 [2025-02-06 08:58:28,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 236 transitions, 482 flow. Second operand has 3 states, 3 states have (on average 226.33333333333334) internal successors, (679), 3 states have internal predecessors, (679), 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) [2025-02-06 08:58:28,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:58:28,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 296 [2025-02-06 08:58:28,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:58:28,967 INFO L124 PetriNetUnfolderBase]: 179/1842 cut-off events. [2025-02-06 08:58:28,968 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2025-02-06 08:58:28,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2139 conditions, 1842 events. 179/1842 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 14338 event pairs, 45 based on Foata normal form. 0/1656 useless extension candidates. Maximal degree in co-relation 2134. Up to 146 conditions per place. [2025-02-06 08:58:28,978 INFO L140 encePairwiseOnDemand]: 288/296 looper letters, 35 selfloop transitions, 6 changer transitions 0/255 dead transitions. [2025-02-06 08:58:28,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 255 transitions, 607 flow [2025-02-06 08:58:28,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 08:58:28,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 08:58:28,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 718 transitions. [2025-02-06 08:58:28,981 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8085585585585585 [2025-02-06 08:58:28,981 INFO L175 Difference]: Start difference. First operand has 234 places, 236 transitions, 482 flow. Second operand 3 states and 718 transitions. [2025-02-06 08:58:28,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 255 transitions, 607 flow [2025-02-06 08:58:28,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 255 transitions, 607 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 08:58:28,985 INFO L231 Difference]: Finished difference. Result has 238 places, 242 transitions, 534 flow [2025-02-06 08:58:28,985 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=534, PETRI_PLACES=238, PETRI_TRANSITIONS=242} [2025-02-06 08:58:28,986 INFO L279 CegarLoopForPetriNet]: 275 programPoint places, -37 predicate places. [2025-02-06 08:58:28,986 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 242 transitions, 534 flow [2025-02-06 08:58:28,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 226.33333333333334) internal successors, (679), 3 states have internal predecessors, (679), 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) [2025-02-06 08:58:28,986 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:28,986 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:58:28,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 08:58:28,987 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-02-06 08:58:28,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:28,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1905398782, now seen corresponding path program 1 times [2025-02-06 08:58:28,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:28,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336001454] [2025-02-06 08:58:28,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:28,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:28,994 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-06 08:58:28,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 08:58:28,997 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:28,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:28,997 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 08:58:28,999 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-06 08:58:29,002 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 08:58:29,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:29,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:29,006 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 08:58:29,006 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 08:58:29,006 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2025-02-06 08:58:29,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2025-02-06 08:58:29,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2025-02-06 08:58:29,006 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2025-02-06 08:58:29,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2025-02-06 08:58:29,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2025-02-06 08:58:29,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2025-02-06 08:58:29,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2025-02-06 08:58:29,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2025-02-06 08:58:29,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2025-02-06 08:58:29,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2025-02-06 08:58:29,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2025-02-06 08:58:29,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2025-02-06 08:58:29,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2025-02-06 08:58:29,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2025-02-06 08:58:29,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2025-02-06 08:58:29,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2025-02-06 08:58:29,007 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2025-02-06 08:58:29,008 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2025-02-06 08:58:29,008 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2025-02-06 08:58:29,008 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2025-02-06 08:58:29,008 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2025-02-06 08:58:29,008 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2025-02-06 08:58:29,008 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2025-02-06 08:58:29,020 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2025-02-06 08:58:29,020 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2025-02-06 08:58:29,020 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2025-02-06 08:58:29,020 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2025-02-06 08:58:29,020 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2025-02-06 08:58:29,020 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2025-02-06 08:58:29,020 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2025-02-06 08:58:29,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2025-02-06 08:58:29,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2025-02-06 08:58:29,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2025-02-06 08:58:29,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2025-02-06 08:58:29,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2025-02-06 08:58:29,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2025-02-06 08:58:29,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2025-02-06 08:58:29,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2025-02-06 08:58:29,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2025-02-06 08:58:29,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2025-02-06 08:58:29,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2025-02-06 08:58:29,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2025-02-06 08:58:29,021 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2025-02-06 08:58:29,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2025-02-06 08:58:29,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2025-02-06 08:58:29,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2025-02-06 08:58:29,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2025-02-06 08:58:29,022 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2025-02-06 08:58:29,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 08:58:29,022 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-06 08:58:29,023 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 08:58:29,023 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-02-06 08:58:29,098 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 08:58:29,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 400 places, 432 transitions, 882 flow [2025-02-06 08:58:29,152 INFO L124 PetriNetUnfolderBase]: 39/457 cut-off events. [2025-02-06 08:58:29,152 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-02-06 08:58:29,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 470 conditions, 457 events. 39/457 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2080 event pairs, 0 based on Foata normal form. 0/366 useless extension candidates. Maximal degree in co-relation 414. Up to 4 conditions per place. [2025-02-06 08:58:29,157 INFO L82 GeneralOperation]: Start removeDead. Operand has 400 places, 432 transitions, 882 flow [2025-02-06 08:58:29,162 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 400 places, 432 transitions, 882 flow [2025-02-06 08:58:29,163 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 08:58:29,164 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;@5e423b75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 08:58:29,164 INFO L334 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2025-02-06 08:58:29,166 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 08:58:29,166 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-02-06 08:58:29,166 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 08:58:29,166 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:29,166 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:58:29,167 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-02-06 08:58:29,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:29,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1843500484, now seen corresponding path program 1 times [2025-02-06 08:58:29,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:29,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682933244] [2025-02-06 08:58:29,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:29,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:29,179 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 08:58:29,181 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 08:58:29,182 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:29,182 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:58:29,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:58:29,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:58:29,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682933244] [2025-02-06 08:58:29,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682933244] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:58:29,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:58:29,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 08:58:29,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326227266] [2025-02-06 08:58:29,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:58:29,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 08:58:29,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:58:29,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 08:58:29,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 08:58:29,196 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 338 out of 432 [2025-02-06 08:58:29,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 432 transitions, 882 flow. Second operand has 2 states, 2 states have (on average 339.0) internal successors, (678), 2 states have internal predecessors, (678), 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) [2025-02-06 08:58:29,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:58:29,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 338 of 432 [2025-02-06 08:58:29,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:58:30,267 INFO L124 PetriNetUnfolderBase]: 894/7665 cut-off events. [2025-02-06 08:58:30,267 INFO L125 PetriNetUnfolderBase]: For 319/319 co-relation queries the response was YES. [2025-02-06 08:58:30,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8918 conditions, 7665 events. 894/7665 cut-off events. For 319/319 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 85659 event pairs, 630 based on Foata normal form. 1697/8537 useless extension candidates. Maximal degree in co-relation 7472. Up to 1030 conditions per place. [2025-02-06 08:58:30,348 INFO L140 encePairwiseOnDemand]: 368/432 looper letters, 21 selfloop transitions, 0 changer transitions 0/344 dead transitions. [2025-02-06 08:58:30,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 344 transitions, 748 flow [2025-02-06 08:58:30,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 08:58:30,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 08:58:30,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 761 transitions. [2025-02-06 08:58:30,351 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8807870370370371 [2025-02-06 08:58:30,351 INFO L175 Difference]: Start difference. First operand has 400 places, 432 transitions, 882 flow. Second operand 2 states and 761 transitions. [2025-02-06 08:58:30,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 344 transitions, 748 flow [2025-02-06 08:58:30,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 344 transitions, 746 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-02-06 08:58:30,359 INFO L231 Difference]: Finished difference. Result has 340 places, 344 transitions, 704 flow [2025-02-06 08:58:30,360 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=704, PETRI_PLACES=340, PETRI_TRANSITIONS=344} [2025-02-06 08:58:30,361 INFO L279 CegarLoopForPetriNet]: 400 programPoint places, -60 predicate places. [2025-02-06 08:58:30,361 INFO L471 AbstractCegarLoop]: Abstraction has has 340 places, 344 transitions, 704 flow [2025-02-06 08:58:30,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 339.0) internal successors, (678), 2 states have internal predecessors, (678), 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) [2025-02-06 08:58:30,362 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:30,362 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] [2025-02-06 08:58:30,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 08:58:30,362 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err13ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-02-06 08:58:30,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:30,363 INFO L85 PathProgramCache]: Analyzing trace with hash -2077391456, now seen corresponding path program 1 times [2025-02-06 08:58:30,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:30,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513271691] [2025-02-06 08:58:30,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:30,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:30,375 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 08:58:30,378 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 08:58:30,378 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:30,378 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:58:30,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:58:30,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:58:30,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513271691] [2025-02-06 08:58:30,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513271691] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:58:30,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:58:30,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 08:58:30,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353049550] [2025-02-06 08:58:30,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:58:30,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 08:58:30,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:58:30,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 08:58:30,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 08:58:30,436 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 432 [2025-02-06 08:58:30,437 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 344 transitions, 704 flow. Second operand has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 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) [2025-02-06 08:58:30,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:58:30,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 432 [2025-02-06 08:58:30,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:58:32,984 INFO L124 PetriNetUnfolderBase]: 3955/25008 cut-off events. [2025-02-06 08:58:32,985 INFO L125 PetriNetUnfolderBase]: For 451/451 co-relation queries the response was YES. [2025-02-06 08:58:33,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30518 conditions, 25008 events. 3955/25008 cut-off events. For 451/451 co-relation queries the response was YES. Maximal size of possible extension queue 594. Compared 341795 event pairs, 1180 based on Foata normal form. 0/22438 useless extension candidates. Maximal degree in co-relation 30512. Up to 2807 conditions per place. [2025-02-06 08:58:33,118 INFO L140 encePairwiseOnDemand]: 420/432 looper letters, 53 selfloop transitions, 9 changer transitions 0/373 dead transitions. [2025-02-06 08:58:33,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 373 transitions, 896 flow [2025-02-06 08:58:33,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 08:58:33,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 08:58:33,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1043 transitions. [2025-02-06 08:58:33,122 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8047839506172839 [2025-02-06 08:58:33,122 INFO L175 Difference]: Start difference. First operand has 340 places, 344 transitions, 704 flow. Second operand 3 states and 1043 transitions. [2025-02-06 08:58:33,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 373 transitions, 896 flow [2025-02-06 08:58:33,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 373 transitions, 896 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 08:58:33,126 INFO L231 Difference]: Finished difference. Result has 344 places, 353 transitions, 782 flow [2025-02-06 08:58:33,126 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=704, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=782, PETRI_PLACES=344, PETRI_TRANSITIONS=353} [2025-02-06 08:58:33,127 INFO L279 CegarLoopForPetriNet]: 400 programPoint places, -56 predicate places. [2025-02-06 08:58:33,127 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 353 transitions, 782 flow [2025-02-06 08:58:33,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 327.3333333333333) internal successors, (982), 3 states have internal predecessors, (982), 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) [2025-02-06 08:58:33,127 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:33,128 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] [2025-02-06 08:58:33,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 08:58:33,128 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err12ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-02-06 08:58:33,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:33,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1662736144, now seen corresponding path program 1 times [2025-02-06 08:58:33,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:33,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254638071] [2025-02-06 08:58:33,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:33,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:33,135 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-06 08:58:33,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 08:58:33,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:33,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:58:33,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:58:33,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:58:33,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254638071] [2025-02-06 08:58:33,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254638071] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:58:33,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:58:33,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 08:58:33,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396177238] [2025-02-06 08:58:33,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:58:33,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 08:58:33,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:58:33,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 08:58:33,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 08:58:33,636 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 432 [2025-02-06 08:58:33,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 353 transitions, 782 flow. Second operand has 6 states, 6 states have (on average 306.6666666666667) internal successors, (1840), 6 states have internal predecessors, (1840), 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) [2025-02-06 08:58:33,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:58:33,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 432 [2025-02-06 08:58:33,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:58:43,369 INFO L124 PetriNetUnfolderBase]: 26035/99658 cut-off events. [2025-02-06 08:58:43,369 INFO L125 PetriNetUnfolderBase]: For 2551/2556 co-relation queries the response was YES. [2025-02-06 08:58:43,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141074 conditions, 99658 events. 26035/99658 cut-off events. For 2551/2556 co-relation queries the response was YES. Maximal size of possible extension queue 1701. Compared 1463776 event pairs, 14366 based on Foata normal form. 0/88949 useless extension candidates. Maximal degree in co-relation 141066. Up to 30134 conditions per place. [2025-02-06 08:58:44,259 INFO L140 encePairwiseOnDemand]: 401/432 looper letters, 111 selfloop transitions, 94 changer transitions 0/504 dead transitions. [2025-02-06 08:58:44,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 504 transitions, 1534 flow [2025-02-06 08:58:44,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 08:58:44,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 08:58:44,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2036 transitions. [2025-02-06 08:58:44,263 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7854938271604939 [2025-02-06 08:58:44,263 INFO L175 Difference]: Start difference. First operand has 344 places, 353 transitions, 782 flow. Second operand 6 states and 2036 transitions. [2025-02-06 08:58:44,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 504 transitions, 1534 flow [2025-02-06 08:58:44,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 504 transitions, 1516 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 08:58:44,283 INFO L231 Difference]: Finished difference. Result has 351 places, 450 transitions, 1336 flow [2025-02-06 08:58:44,283 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1336, PETRI_PLACES=351, PETRI_TRANSITIONS=450} [2025-02-06 08:58:44,284 INFO L279 CegarLoopForPetriNet]: 400 programPoint places, -49 predicate places. [2025-02-06 08:58:44,284 INFO L471 AbstractCegarLoop]: Abstraction has has 351 places, 450 transitions, 1336 flow [2025-02-06 08:58:44,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 306.6666666666667) internal successors, (1840), 6 states have internal predecessors, (1840), 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) [2025-02-06 08:58:44,285 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:44,285 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 08:58:44,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 08:58:44,286 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-02-06 08:58:44,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:44,286 INFO L85 PathProgramCache]: Analyzing trace with hash -2102167279, now seen corresponding path program 1 times [2025-02-06 08:58:44,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:44,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324477476] [2025-02-06 08:58:44,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:44,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:44,292 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-06 08:58:44,298 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 08:58:44,299 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:44,299 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:44,299 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 08:58:44,301 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-06 08:58:44,305 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 08:58:44,305 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:44,305 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 08:58:44,313 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 08:58:44,313 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 08:58:44,314 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2025-02-06 08:58:44,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2025-02-06 08:58:44,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2025-02-06 08:58:44,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2025-02-06 08:58:44,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2025-02-06 08:58:44,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2025-02-06 08:58:44,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2025-02-06 08:58:44,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2025-02-06 08:58:44,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2025-02-06 08:58:44,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2025-02-06 08:58:44,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2025-02-06 08:58:44,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2025-02-06 08:58:44,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2025-02-06 08:58:44,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2025-02-06 08:58:44,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2025-02-06 08:58:44,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2025-02-06 08:58:44,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2025-02-06 08:58:44,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2025-02-06 08:58:44,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2025-02-06 08:58:44,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2025-02-06 08:58:44,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2025-02-06 08:58:44,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2025-02-06 08:58:44,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2025-02-06 08:58:44,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2025-02-06 08:58:44,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2025-02-06 08:58:44,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2025-02-06 08:58:44,315 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2025-02-06 08:58:44,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2025-02-06 08:58:44,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2025-02-06 08:58:44,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2025-02-06 08:58:44,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2025-02-06 08:58:44,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2025-02-06 08:58:44,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2025-02-06 08:58:44,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2025-02-06 08:58:44,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2025-02-06 08:58:44,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2025-02-06 08:58:44,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2025-02-06 08:58:44,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2025-02-06 08:58:44,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2025-02-06 08:58:44,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2025-02-06 08:58:44,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2025-02-06 08:58:44,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2025-02-06 08:58:44,316 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2025-02-06 08:58:44,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2025-02-06 08:58:44,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2025-02-06 08:58:44,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2025-02-06 08:58:44,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2025-02-06 08:58:44,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2025-02-06 08:58:44,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2025-02-06 08:58:44,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2025-02-06 08:58:44,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2025-02-06 08:58:44,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2025-02-06 08:58:44,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2025-02-06 08:58:44,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2025-02-06 08:58:44,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2025-02-06 08:58:44,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2025-02-06 08:58:44,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2025-02-06 08:58:44,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2025-02-06 08:58:44,317 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2025-02-06 08:58:44,318 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2025-02-06 08:58:44,318 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2025-02-06 08:58:44,318 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2025-02-06 08:58:44,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2025-02-06 08:58:44,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2025-02-06 08:58:44,319 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2025-02-06 08:58:44,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 08:58:44,319 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-02-06 08:58:44,319 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 08:58:44,319 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-02-06 08:58:44,389 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 08:58:44,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 525 places, 568 transitions, 1164 flow [2025-02-06 08:58:44,459 INFO L124 PetriNetUnfolderBase]: 52/602 cut-off events. [2025-02-06 08:58:44,459 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-02-06 08:58:44,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 602 events. 52/602 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3074 event pairs, 0 based on Foata normal form. 0/481 useless extension candidates. Maximal degree in co-relation 549. Up to 5 conditions per place. [2025-02-06 08:58:44,469 INFO L82 GeneralOperation]: Start removeDead. Operand has 525 places, 568 transitions, 1164 flow [2025-02-06 08:58:44,476 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 525 places, 568 transitions, 1164 flow [2025-02-06 08:58:44,477 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 08:58:44,477 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;@5e423b75, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 08:58:44,478 INFO L334 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2025-02-06 08:58:44,479 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 08:58:44,479 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-02-06 08:58:44,479 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 08:58:44,479 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:44,479 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] [2025-02-06 08:58:44,479 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err15ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2025-02-06 08:58:44,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:44,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1299217379, now seen corresponding path program 1 times [2025-02-06 08:58:44,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:44,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518950813] [2025-02-06 08:58:44,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:44,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:44,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 08:58:44,487 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 08:58:44,487 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:44,488 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:58:44,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:58:44,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:58:44,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518950813] [2025-02-06 08:58:44,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518950813] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:58:44,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:58:44,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 08:58:44,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394166806] [2025-02-06 08:58:44,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:58:44,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 08:58:44,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:58:44,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 08:58:44,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 08:58:44,496 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 443 out of 568 [2025-02-06 08:58:44,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 525 places, 568 transitions, 1164 flow. Second operand has 2 states, 2 states have (on average 444.0) internal successors, (888), 2 states have internal predecessors, (888), 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) [2025-02-06 08:58:44,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:58:44,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 443 of 568 [2025-02-06 08:58:44,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 08:58:52,218 INFO L124 PetriNetUnfolderBase]: 8668/56246 cut-off events. [2025-02-06 08:58:52,219 INFO L125 PetriNetUnfolderBase]: For 3752/3752 co-relation queries the response was YES. [2025-02-06 08:58:52,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67790 conditions, 56246 events. 8668/56246 cut-off events. For 3752/3752 co-relation queries the response was YES. Maximal size of possible extension queue 1211. Compared 870344 event pairs, 6804 based on Foata normal form. 15315/65666 useless extension candidates. Maximal degree in co-relation 56473. Up to 9605 conditions per place. [2025-02-06 08:58:52,886 INFO L140 encePairwiseOnDemand]: 483/568 looper letters, 28 selfloop transitions, 0 changer transitions 0/452 dead transitions. [2025-02-06 08:58:52,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 452 transitions, 988 flow [2025-02-06 08:58:52,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 08:58:52,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 08:58:52,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 999 transitions. [2025-02-06 08:58:52,889 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8794014084507042 [2025-02-06 08:58:52,889 INFO L175 Difference]: Start difference. First operand has 525 places, 568 transitions, 1164 flow. Second operand 2 states and 999 transitions. [2025-02-06 08:58:52,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 452 transitions, 988 flow [2025-02-06 08:58:52,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 452 transitions, 982 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-02-06 08:58:52,895 INFO L231 Difference]: Finished difference. Result has 446 places, 452 transitions, 926 flow [2025-02-06 08:58:52,896 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=568, PETRI_DIFFERENCE_MINUEND_FLOW=926, PETRI_DIFFERENCE_MINUEND_PLACES=445, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=452, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=926, PETRI_PLACES=446, PETRI_TRANSITIONS=452} [2025-02-06 08:58:52,896 INFO L279 CegarLoopForPetriNet]: 525 programPoint places, -79 predicate places. [2025-02-06 08:58:52,896 INFO L471 AbstractCegarLoop]: Abstraction has has 446 places, 452 transitions, 926 flow [2025-02-06 08:58:52,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 444.0) internal successors, (888), 2 states have internal predecessors, (888), 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) [2025-02-06 08:58:52,897 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 08:58:52,897 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] [2025-02-06 08:58:52,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 08:58:52,897 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err13ASSERT_VIOLATIONDATA_RACE === [thr1Err15ASSERT_VIOLATIONDATA_RACE, thr1Err14ASSERT_VIOLATIONDATA_RACE, thr1Err13ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2025-02-06 08:58:52,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 08:58:52,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1287511705, now seen corresponding path program 1 times [2025-02-06 08:58:52,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 08:58:52,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097575171] [2025-02-06 08:58:52,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 08:58:52,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 08:58:52,902 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 08:58:52,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 08:58:52,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 08:58:52,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 08:58:52,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 08:58:52,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 08:58:52,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097575171] [2025-02-06 08:58:52,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097575171] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 08:58:52,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 08:58:52,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 08:58:52,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852028925] [2025-02-06 08:58:52,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 08:58:52,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 08:58:52,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 08:58:52,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 08:58:52,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 08:58:52,936 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 427 out of 568 [2025-02-06 08:58:52,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 446 places, 452 transitions, 926 flow. Second operand has 3 states, 3 states have (on average 428.3333333333333) internal successors, (1285), 3 states have internal predecessors, (1285), 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) [2025-02-06 08:58:52,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 08:58:52,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 427 of 568 [2025-02-06 08:58:52,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand