./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.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 e7fe0631e7f950e2868c8cb954edca4f6de3fdffbf6debba58771511fbac2e8b --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:06:33,580 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:06:33,623 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-01-09 21:06:33,627 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:06:33,628 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:06:33,642 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:06:33,643 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:06:33,643 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:06:33,643 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:06:33,643 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:06:33,644 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:06:33,644 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:06:33,644 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:06:33,644 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:06:33,644 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:06:33,644 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:06:33,644 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:06:33,644 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:06:33,644 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:06:33,645 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:06:33,645 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:06:33,645 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:06:33,645 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-01-09 21:06:33,645 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:06:33,645 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:06:33,645 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:06:33,645 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:06:33,645 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:06:33,645 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:06:33,645 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:06:33,646 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:06:33,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:06:33,646 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:06:33,646 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:06:33,646 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:06:33,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:06:33,646 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:06:33,646 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:06:33,646 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 21:06:33,646 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 21:06:33,646 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:06:33,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:06:33,647 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:06:33,647 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:06:33,647 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:06:33,647 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:06:33,647 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 -> e7fe0631e7f950e2868c8cb954edca4f6de3fdffbf6debba58771511fbac2e8b [2025-01-09 21:06:33,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:06:33,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:06:33,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:06:33,881 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:06:33,882 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:06:33,883 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.i [2025-01-09 21:06:35,059 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b180d2191/433c53ad5ac1411e996711a784bdb2f9/FLAG346480373 [2025-01-09 21:06:35,449 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:06:35,452 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/36_stack_cas_p0_vs_concur-race.i [2025-01-09 21:06:35,466 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b180d2191/433c53ad5ac1411e996711a784bdb2f9/FLAG346480373 [2025-01-09 21:06:35,488 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b180d2191/433c53ad5ac1411e996711a784bdb2f9 [2025-01-09 21:06:35,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:06:35,491 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:06:35,493 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:06:35,493 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:06:35,497 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:06:35,497 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:06:35" (1/1) ... [2025-01-09 21:06:35,498 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c9f505e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:35, skipping insertion in model container [2025-01-09 21:06:35,498 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:06:35" (1/1) ... [2025-01-09 21:06:35,525 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:06:35,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:06:35,778 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:06:35,813 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:06:35,853 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:06:35,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:35 WrapperNode [2025-01-09 21:06:35,853 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:06:35,854 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:06:35,854 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:06:35,854 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:06:35,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:35" (1/1) ... [2025-01-09 21:06:35,882 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:35" (1/1) ... [2025-01-09 21:06:35,900 INFO L138 Inliner]: procedures = 170, calls = 33, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 246 [2025-01-09 21:06:35,900 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:06:35,900 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:06:35,901 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:06:35,901 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:06:35,913 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:35" (1/1) ... [2025-01-09 21:06:35,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:35" (1/1) ... [2025-01-09 21:06:35,916 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:35" (1/1) ... [2025-01-09 21:06:35,920 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:35" (1/1) ... [2025-01-09 21:06:35,934 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:35" (1/1) ... [2025-01-09 21:06:35,937 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:35" (1/1) ... [2025-01-09 21:06:35,939 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:35" (1/1) ... [2025-01-09 21:06:35,941 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:35" (1/1) ... [2025-01-09 21:06:35,942 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:35" (1/1) ... [2025-01-09 21:06:35,947 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:06:35,948 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:06:35,948 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:06:35,948 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:06:35,949 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:35" (1/1) ... [2025-01-09 21:06:35,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:06:35,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:06:35,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 21:06:35,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 21:06:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-09 21:06:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-01-09 21:06:36,004 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-01-09 21:06:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-09 21:06:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:06:36,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 21:06:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 21:06:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 21:06:36,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:06:36,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:06:36,005 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-09 21:06:36,092 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:06:36,094 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:06:36,422 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 21:06:36,423 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:06:36,605 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:06:36,606 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2025-01-09 21:06:36,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:06:36 BoogieIcfgContainer [2025-01-09 21:06:36,607 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:06:36,609 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:06:36,609 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:06:36,612 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:06:36,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:06:35" (1/3) ... [2025-01-09 21:06:36,613 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf72964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:06:36, skipping insertion in model container [2025-01-09 21:06:36,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:06:35" (2/3) ... [2025-01-09 21:06:36,614 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bf72964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:06:36, skipping insertion in model container [2025-01-09 21:06:36,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:06:36" (3/3) ... [2025-01-09 21:06:36,615 INFO L128 eAbstractionObserver]: Analyzing ICFG 36_stack_cas_p0_vs_concur-race.i [2025-01-09 21:06:36,625 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:06:36,628 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 36_stack_cas_p0_vs_concur-race.i that has 2 procedures, 207 locations, 1 initial locations, 3 loop locations, and 19 error locations. [2025-01-09 21:06:36,628 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 21:06:36,705 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:06:36,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 210 places, 214 transitions, 432 flow [2025-01-09 21:06:36,797 INFO L124 PetriNetUnfolderBase]: 7/221 cut-off events. [2025-01-09 21:06:36,799 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:06:36,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 221 events. 7/221 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 167 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 134. Up to 3 conditions per place. [2025-01-09 21:06:36,802 INFO L82 GeneralOperation]: Start removeDead. Operand has 210 places, 214 transitions, 432 flow [2025-01-09 21:06:36,806 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 210 places, 214 transitions, 432 flow [2025-01-09 21:06:36,810 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:06:36,817 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;@10aa6d79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:06:36,817 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2025-01-09 21:06:36,831 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:06:36,831 INFO L124 PetriNetUnfolderBase]: 0/104 cut-off events. [2025-01-09 21:06:36,831 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:06:36,831 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:06:36,832 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:06:36,832 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 35 more)] === [2025-01-09 21:06:36,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:06:36,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1605571044, now seen corresponding path program 1 times [2025-01-09 21:06:36,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:06:36,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314978269] [2025-01-09 21:06:36,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:06:36,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:06:36,904 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-01-09 21:06:36,940 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-01-09 21:06:36,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:06:36,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:06:36,945 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 21:06:36,956 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-01-09 21:06:36,994 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-01-09 21:06:36,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:06:36,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:06:37,037 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 21:06:37,039 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 21:06:37,040 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2025-01-09 21:06:37,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2025-01-09 21:06:37,041 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2025-01-09 21:06:37,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2025-01-09 21:06:37,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2025-01-09 21:06:37,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2025-01-09 21:06:37,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2025-01-09 21:06:37,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2025-01-09 21:06:37,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2025-01-09 21:06:37,042 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2025-01-09 21:06:37,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2025-01-09 21:06:37,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2025-01-09 21:06:37,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2025-01-09 21:06:37,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2025-01-09 21:06:37,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2025-01-09 21:06:37,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2025-01-09 21:06:37,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2025-01-09 21:06:37,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2025-01-09 21:06:37,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2025-01-09 21:06:37,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2025-01-09 21:06:37,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2025-01-09 21:06:37,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2025-01-09 21:06:37,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2025-01-09 21:06:37,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2025-01-09 21:06:37,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2025-01-09 21:06:37,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2025-01-09 21:06:37,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2025-01-09 21:06:37,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2025-01-09 21:06:37,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2025-01-09 21:06:37,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2025-01-09 21:06:37,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2025-01-09 21:06:37,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2025-01-09 21:06:37,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2025-01-09 21:06:37,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2025-01-09 21:06:37,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2025-01-09 21:06:37,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2025-01-09 21:06:37,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2025-01-09 21:06:37,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2025-01-09 21:06:37,047 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2025-01-09 21:06:37,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 21:06:37,048 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 21:06:37,051 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-09 21:06:37,051 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-01-09 21:06:37,171 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:06:37,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 331 places, 340 transitions, 690 flow [2025-01-09 21:06:37,263 INFO L124 PetriNetUnfolderBase]: 14/356 cut-off events. [2025-01-09 21:06:37,267 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-01-09 21:06:37,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 364 conditions, 356 events. 14/356 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 703 event pairs, 0 based on Foata normal form. 0/301 useless extension candidates. Maximal degree in co-relation 259. Up to 3 conditions per place. [2025-01-09 21:06:37,275 INFO L82 GeneralOperation]: Start removeDead. Operand has 331 places, 340 transitions, 690 flow [2025-01-09 21:06:37,281 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 331 places, 340 transitions, 690 flow [2025-01-09 21:06:37,281 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:06:37,283 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;@10aa6d79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:06:37,283 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2025-01-09 21:06:37,296 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:06:37,297 INFO L124 PetriNetUnfolderBase]: 0/111 cut-off events. [2025-01-09 21:06:37,297 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:06:37,297 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:06:37,298 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:06:37,298 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2025-01-09 21:06:37,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:06:37,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1910512371, now seen corresponding path program 1 times [2025-01-09 21:06:37,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:06:37,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093528555] [2025-01-09 21:06:37,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:06:37,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:06:37,329 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-01-09 21:06:37,361 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-01-09 21:06:37,361 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:06:37,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:06:37,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:06:37,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:06:37,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093528555] [2025-01-09 21:06:37,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093528555] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:06:37,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:06:37,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-09 21:06:37,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311501409] [2025-01-09 21:06:37,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:06:37,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 21:06:37,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:06:37,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 21:06:37,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 21:06:37,543 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 340 [2025-01-09 21:06:37,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 340 transitions, 690 flow. Second operand has 2 states, 2 states have (on average 302.0) internal successors, (604), 2 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:06:37,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:06:37,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 340 [2025-01-09 21:06:37,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:06:37,842 INFO L124 PetriNetUnfolderBase]: 18/522 cut-off events. [2025-01-09 21:06:37,842 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2025-01-09 21:06:37,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 555 conditions, 522 events. 18/522 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1331 event pairs, 6 based on Foata normal form. 41/508 useless extension candidates. Maximal degree in co-relation 194. Up to 19 conditions per place. [2025-01-09 21:06:37,851 INFO L140 encePairwiseOnDemand]: 309/340 looper letters, 6 selfloop transitions, 0 changer transitions 0/290 dead transitions. [2025-01-09 21:06:37,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 290 transitions, 602 flow [2025-01-09 21:06:37,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 21:06:37,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-01-09 21:06:37,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 639 transitions. [2025-01-09 21:06:37,874 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9397058823529412 [2025-01-09 21:06:37,877 INFO L175 Difference]: Start difference. First operand has 331 places, 340 transitions, 690 flow. Second operand 2 states and 639 transitions. [2025-01-09 21:06:37,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 290 transitions, 602 flow [2025-01-09 21:06:37,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 290 transitions, 602 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:06:37,896 INFO L231 Difference]: Finished difference. Result has 290 places, 290 transitions, 590 flow [2025-01-09 21:06:37,901 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=340, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=590, PETRI_PLACES=290, PETRI_TRANSITIONS=290} [2025-01-09 21:06:37,908 INFO L279 CegarLoopForPetriNet]: 331 programPoint places, -41 predicate places. [2025-01-09 21:06:37,908 INFO L471 AbstractCegarLoop]: Abstraction has has 290 places, 290 transitions, 590 flow [2025-01-09 21:06:37,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 302.0) internal successors, (604), 2 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:06:37,909 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:06:37,909 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:06:37,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 21:06:37,909 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 54 more)] === [2025-01-09 21:06:37,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:06:37,910 INFO L85 PathProgramCache]: Analyzing trace with hash -2084503343, now seen corresponding path program 1 times [2025-01-09 21:06:37,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:06:37,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139514668] [2025-01-09 21:06:37,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:06:37,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:06:37,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-01-09 21:06:37,949 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-01-09 21:06:37,949 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:06:37,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:06:37,949 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 21:06:37,960 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-01-09 21:06:37,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-01-09 21:06:37,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:06:37,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:06:37,994 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 21:06:37,997 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 21:06:37,998 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (57 of 58 remaining) [2025-01-09 21:06:37,998 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (56 of 58 remaining) [2025-01-09 21:06:37,998 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (55 of 58 remaining) [2025-01-09 21:06:37,998 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (54 of 58 remaining) [2025-01-09 21:06:37,998 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (53 of 58 remaining) [2025-01-09 21:06:37,998 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (52 of 58 remaining) [2025-01-09 21:06:37,998 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (51 of 58 remaining) [2025-01-09 21:06:37,998 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (50 of 58 remaining) [2025-01-09 21:06:37,998 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (49 of 58 remaining) [2025-01-09 21:06:37,998 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (48 of 58 remaining) [2025-01-09 21:06:37,999 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 58 remaining) [2025-01-09 21:06:37,999 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (46 of 58 remaining) [2025-01-09 21:06:37,999 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (45 of 58 remaining) [2025-01-09 21:06:38,000 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (44 of 58 remaining) [2025-01-09 21:06:38,000 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (43 of 58 remaining) [2025-01-09 21:06:38,000 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (42 of 58 remaining) [2025-01-09 21:06:38,000 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (41 of 58 remaining) [2025-01-09 21:06:38,000 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (40 of 58 remaining) [2025-01-09 21:06:38,000 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (39 of 58 remaining) [2025-01-09 21:06:38,000 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (38 of 58 remaining) [2025-01-09 21:06:38,000 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 58 remaining) [2025-01-09 21:06:38,000 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 58 remaining) [2025-01-09 21:06:38,000 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 58 remaining) [2025-01-09 21:06:38,000 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (34 of 58 remaining) [2025-01-09 21:06:38,000 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (33 of 58 remaining) [2025-01-09 21:06:38,000 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (32 of 58 remaining) [2025-01-09 21:06:38,000 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (29 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (27 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (22 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (21 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (10 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (8 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (3 of 58 remaining) [2025-01-09 21:06:38,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (2 of 58 remaining) [2025-01-09 21:06:38,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (1 of 58 remaining) [2025-01-09 21:06:38,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 58 remaining) [2025-01-09 21:06:38,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 21:06:38,002 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-09 21:06:38,004 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-09 21:06:38,004 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-01-09 21:06:38,099 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:06:38,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 452 places, 466 transitions, 950 flow [2025-01-09 21:06:38,208 INFO L124 PetriNetUnfolderBase]: 21/491 cut-off events. [2025-01-09 21:06:38,208 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-01-09 21:06:38,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 504 conditions, 491 events. 21/491 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1480 event pairs, 0 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 384. Up to 4 conditions per place. [2025-01-09 21:06:38,213 INFO L82 GeneralOperation]: Start removeDead. Operand has 452 places, 466 transitions, 950 flow [2025-01-09 21:06:38,218 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 452 places, 466 transitions, 950 flow [2025-01-09 21:06:38,219 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:06:38,219 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;@10aa6d79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:06:38,219 INFO L334 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2025-01-09 21:06:38,228 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:06:38,228 INFO L124 PetriNetUnfolderBase]: 0/111 cut-off events. [2025-01-09 21:06:38,228 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:06:38,228 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:06:38,228 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:06:38,228 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2025-01-09 21:06:38,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:06:38,230 INFO L85 PathProgramCache]: Analyzing trace with hash -292967504, now seen corresponding path program 1 times [2025-01-09 21:06:38,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:06:38,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403621365] [2025-01-09 21:06:38,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:06:38,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:06:38,251 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-01-09 21:06:38,264 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-01-09 21:06:38,267 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:06:38,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:06:38,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:06:38,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:06:38,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403621365] [2025-01-09 21:06:38,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403621365] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:06:38,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:06:38,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-09 21:06:38,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067666204] [2025-01-09 21:06:38,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:06:38,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 21:06:38,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:06:38,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 21:06:38,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 21:06:38,308 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 466 [2025-01-09 21:06:38,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 452 places, 466 transitions, 950 flow. Second operand has 2 states, 2 states have (on average 409.0) internal successors, (818), 2 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:06:38,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:06:38,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 466 [2025-01-09 21:06:38,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:06:38,711 INFO L124 PetriNetUnfolderBase]: 81/1536 cut-off events. [2025-01-09 21:06:38,712 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2025-01-09 21:06:38,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1669 conditions, 1536 events. 81/1536 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 8604 event pairs, 42 based on Foata normal form. 172/1523 useless extension candidates. Maximal degree in co-relation 548. Up to 82 conditions per place. [2025-01-09 21:06:38,737 INFO L140 encePairwiseOnDemand]: 420/466 looper letters, 9 selfloop transitions, 0 changer transitions 0/393 dead transitions. [2025-01-09 21:06:38,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 393 transitions, 822 flow [2025-01-09 21:06:38,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 21:06:38,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-01-09 21:06:38,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 871 transitions. [2025-01-09 21:06:38,740 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9345493562231759 [2025-01-09 21:06:38,740 INFO L175 Difference]: Start difference. First operand has 452 places, 466 transitions, 950 flow. Second operand 2 states and 871 transitions. [2025-01-09 21:06:38,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 393 transitions, 822 flow [2025-01-09 21:06:38,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 393 transitions, 820 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-01-09 21:06:38,750 INFO L231 Difference]: Finished difference. Result has 392 places, 393 transitions, 802 flow [2025-01-09 21:06:38,751 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=802, PETRI_PLACES=392, PETRI_TRANSITIONS=393} [2025-01-09 21:06:38,752 INFO L279 CegarLoopForPetriNet]: 452 programPoint places, -60 predicate places. [2025-01-09 21:06:38,752 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 393 transitions, 802 flow [2025-01-09 21:06:38,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 409.0) internal successors, (818), 2 states have internal predecessors, (818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:06:38,752 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:06:38,752 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:06:38,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 21:06:38,754 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2025-01-09 21:06:38,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:06:38,754 INFO L85 PathProgramCache]: Analyzing trace with hash 2063692569, now seen corresponding path program 1 times [2025-01-09 21:06:38,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:06:38,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374421104] [2025-01-09 21:06:38,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:06:38,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:06:38,784 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-01-09 21:06:38,816 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-01-09 21:06:38,818 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:06:38,818 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:06:39,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:06:39,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:06:39,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374421104] [2025-01-09 21:06:39,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374421104] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:06:39,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:06:39,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:06:39,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492283864] [2025-01-09 21:06:39,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:06:39,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:06:39,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:06:39,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:06:39,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:06:40,193 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 466 [2025-01-09 21:06:40,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 393 transitions, 802 flow. Second operand has 6 states, 6 states have (on average 380.5) internal successors, (2283), 6 states have internal predecessors, (2283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:06:40,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:06:40,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 466 [2025-01-09 21:06:40,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:06:42,903 INFO L124 PetriNetUnfolderBase]: 1402/13701 cut-off events. [2025-01-09 21:06:42,904 INFO L125 PetriNetUnfolderBase]: For 646/646 co-relation queries the response was YES. [2025-01-09 21:06:42,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16079 conditions, 13701 events. 1402/13701 cut-off events. For 646/646 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 160914 event pairs, 263 based on Foata normal form. 0/11910 useless extension candidates. Maximal degree in co-relation 16073. Up to 1285 conditions per place. [2025-01-09 21:06:43,042 INFO L140 encePairwiseOnDemand]: 437/466 looper letters, 53 selfloop transitions, 37 changer transitions 0/446 dead transitions. [2025-01-09 21:06:43,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 446 transitions, 1128 flow [2025-01-09 21:06:43,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:06:43,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:06:43,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2368 transitions. [2025-01-09 21:06:43,050 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8469241773962805 [2025-01-09 21:06:43,050 INFO L175 Difference]: Start difference. First operand has 392 places, 393 transitions, 802 flow. Second operand 6 states and 2368 transitions. [2025-01-09 21:06:43,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 446 transitions, 1128 flow [2025-01-09 21:06:43,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 446 transitions, 1128 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:06:43,062 INFO L231 Difference]: Finished difference. Result has 402 places, 429 transitions, 1078 flow [2025-01-09 21:06:43,063 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1078, PETRI_PLACES=402, PETRI_TRANSITIONS=429} [2025-01-09 21:06:43,064 INFO L279 CegarLoopForPetriNet]: 452 programPoint places, -50 predicate places. [2025-01-09 21:06:43,065 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 429 transitions, 1078 flow [2025-01-09 21:06:43,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 380.5) internal successors, (2283), 6 states have internal predecessors, (2283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:06:43,066 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:06:43,066 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:06:43,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 21:06:43,067 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 73 more)] === [2025-01-09 21:06:43,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:06:43,067 INFO L85 PathProgramCache]: Analyzing trace with hash 22610809, now seen corresponding path program 1 times [2025-01-09 21:06:43,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:06:43,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096126281] [2025-01-09 21:06:43,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:06:43,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:06:43,087 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-01-09 21:06:43,100 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-01-09 21:06:43,100 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:06:43,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:06:43,100 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 21:06:43,104 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-01-09 21:06:43,112 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-01-09 21:06:43,112 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:06:43,112 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:06:43,129 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 21:06:43,130 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 21:06:43,130 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (76 of 77 remaining) [2025-01-09 21:06:43,130 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (75 of 77 remaining) [2025-01-09 21:06:43,130 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (74 of 77 remaining) [2025-01-09 21:06:43,130 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (73 of 77 remaining) [2025-01-09 21:06:43,130 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (72 of 77 remaining) [2025-01-09 21:06:43,130 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (71 of 77 remaining) [2025-01-09 21:06:43,131 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (70 of 77 remaining) [2025-01-09 21:06:43,131 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (69 of 77 remaining) [2025-01-09 21:06:43,131 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (68 of 77 remaining) [2025-01-09 21:06:43,131 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (67 of 77 remaining) [2025-01-09 21:06:43,131 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (66 of 77 remaining) [2025-01-09 21:06:43,131 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (65 of 77 remaining) [2025-01-09 21:06:43,131 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (64 of 77 remaining) [2025-01-09 21:06:43,131 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (63 of 77 remaining) [2025-01-09 21:06:43,131 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (62 of 77 remaining) [2025-01-09 21:06:43,131 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (61 of 77 remaining) [2025-01-09 21:06:43,131 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (60 of 77 remaining) [2025-01-09 21:06:43,131 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (59 of 77 remaining) [2025-01-09 21:06:43,131 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (58 of 77 remaining) [2025-01-09 21:06:43,132 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (57 of 77 remaining) [2025-01-09 21:06:43,132 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (56 of 77 remaining) [2025-01-09 21:06:43,132 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (55 of 77 remaining) [2025-01-09 21:06:43,132 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (54 of 77 remaining) [2025-01-09 21:06:43,132 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (53 of 77 remaining) [2025-01-09 21:06:43,132 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (52 of 77 remaining) [2025-01-09 21:06:43,133 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (51 of 77 remaining) [2025-01-09 21:06:43,134 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (50 of 77 remaining) [2025-01-09 21:06:43,134 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (49 of 77 remaining) [2025-01-09 21:06:43,134 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (48 of 77 remaining) [2025-01-09 21:06:43,134 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (47 of 77 remaining) [2025-01-09 21:06:43,134 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (46 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (45 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (44 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (43 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (42 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (41 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (40 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (39 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (38 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (37 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (34 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (33 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (32 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (29 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (28 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (27 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (26 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (25 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (24 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (23 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (22 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (21 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (20 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (19 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 77 remaining) [2025-01-09 21:06:43,135 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 77 remaining) [2025-01-09 21:06:43,136 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 77 remaining) [2025-01-09 21:06:43,136 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 77 remaining) [2025-01-09 21:06:43,136 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 77 remaining) [2025-01-09 21:06:43,136 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (13 of 77 remaining) [2025-01-09 21:06:43,136 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 77 remaining) [2025-01-09 21:06:43,136 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 77 remaining) [2025-01-09 21:06:43,136 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (10 of 77 remaining) [2025-01-09 21:06:43,136 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (9 of 77 remaining) [2025-01-09 21:06:43,136 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (8 of 77 remaining) [2025-01-09 21:06:43,136 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (7 of 77 remaining) [2025-01-09 21:06:43,136 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (6 of 77 remaining) [2025-01-09 21:06:43,136 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (5 of 77 remaining) [2025-01-09 21:06:43,136 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (4 of 77 remaining) [2025-01-09 21:06:43,136 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (3 of 77 remaining) [2025-01-09 21:06:43,136 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (2 of 77 remaining) [2025-01-09 21:06:43,136 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (1 of 77 remaining) [2025-01-09 21:06:43,136 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (0 of 77 remaining) [2025-01-09 21:06:43,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 21:06:43,136 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-01-09 21:06:43,140 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-09 21:06:43,140 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-01-09 21:06:43,250 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:06:43,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 573 places, 592 transitions, 1212 flow [2025-01-09 21:06:43,367 INFO L124 PetriNetUnfolderBase]: 28/626 cut-off events. [2025-01-09 21:06:43,367 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-01-09 21:06:43,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 645 conditions, 626 events. 28/626 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2306 event pairs, 0 based on Foata normal form. 0/517 useless extension candidates. Maximal degree in co-relation 509. Up to 5 conditions per place. [2025-01-09 21:06:43,376 INFO L82 GeneralOperation]: Start removeDead. Operand has 573 places, 592 transitions, 1212 flow [2025-01-09 21:06:43,384 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 573 places, 592 transitions, 1212 flow [2025-01-09 21:06:43,385 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:06:43,386 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;@10aa6d79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:06:43,386 INFO L334 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2025-01-09 21:06:43,393 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:06:43,393 INFO L124 PetriNetUnfolderBase]: 0/111 cut-off events. [2025-01-09 21:06:43,393 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:06:43,393 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:06:43,393 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:06:43,393 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2025-01-09 21:06:43,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:06:43,394 INFO L85 PathProgramCache]: Analyzing trace with hash 2074980269, now seen corresponding path program 1 times [2025-01-09 21:06:43,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:06:43,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199823524] [2025-01-09 21:06:43,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:06:43,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:06:43,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-01-09 21:06:43,416 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-01-09 21:06:43,419 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:06:43,420 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:06:43,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:06:43,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:06:43,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199823524] [2025-01-09 21:06:43,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199823524] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:06:43,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:06:43,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-09 21:06:43,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950288223] [2025-01-09 21:06:43,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:06:43,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 21:06:43,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:06:43,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 21:06:43,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 21:06:43,447 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 515 out of 592 [2025-01-09 21:06:43,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 592 transitions, 1212 flow. Second operand has 2 states, 2 states have (on average 516.0) internal successors, (1032), 2 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:06:43,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:06:43,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 515 of 592 [2025-01-09 21:06:43,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:06:44,325 INFO L124 PetriNetUnfolderBase]: 324/4632 cut-off events. [2025-01-09 21:06:44,326 INFO L125 PetriNetUnfolderBase]: For 496/496 co-relation queries the response was YES. [2025-01-09 21:06:44,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5144 conditions, 4632 events. 324/4632 cut-off events. For 496/496 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 39838 event pairs, 204 based on Foata normal form. 697/4746 useless extension candidates. Maximal degree in co-relation 1655. Up to 325 conditions per place. [2025-01-09 21:06:44,404 INFO L140 encePairwiseOnDemand]: 531/592 looper letters, 12 selfloop transitions, 0 changer transitions 0/496 dead transitions. [2025-01-09 21:06:44,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 494 places, 496 transitions, 1044 flow [2025-01-09 21:06:44,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 21:06:44,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-01-09 21:06:44,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1103 transitions. [2025-01-09 21:06:44,407 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9315878378378378 [2025-01-09 21:06:44,407 INFO L175 Difference]: Start difference. First operand has 573 places, 592 transitions, 1212 flow. Second operand 2 states and 1103 transitions. [2025-01-09 21:06:44,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 494 places, 496 transitions, 1044 flow [2025-01-09 21:06:44,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 494 places, 496 transitions, 1038 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-01-09 21:06:44,412 INFO L231 Difference]: Finished difference. Result has 494 places, 496 transitions, 1014 flow [2025-01-09 21:06:44,413 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1014, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1014, PETRI_PLACES=494, PETRI_TRANSITIONS=496} [2025-01-09 21:06:44,413 INFO L279 CegarLoopForPetriNet]: 573 programPoint places, -79 predicate places. [2025-01-09 21:06:44,414 INFO L471 AbstractCegarLoop]: Abstraction has has 494 places, 496 transitions, 1014 flow [2025-01-09 21:06:44,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 516.0) internal successors, (1032), 2 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:06:44,414 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:06:44,414 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:06:44,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 21:06:44,414 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2025-01-09 21:06:44,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:06:44,415 INFO L85 PathProgramCache]: Analyzing trace with hash -2018829770, now seen corresponding path program 1 times [2025-01-09 21:06:44,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:06:44,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766557062] [2025-01-09 21:06:44,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:06:44,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:06:44,430 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-01-09 21:06:44,437 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-01-09 21:06:44,438 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:06:44,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:06:44,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:06:44,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:06:44,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766557062] [2025-01-09 21:06:44,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766557062] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:06:44,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:06:44,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:06:44,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310974063] [2025-01-09 21:06:44,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:06:44,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:06:44,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:06:44,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:06:44,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:06:45,846 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 592 [2025-01-09 21:06:45,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 494 places, 496 transitions, 1014 flow. Second operand has 6 states, 6 states have (on average 487.5) internal successors, (2925), 6 states have internal predecessors, (2925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:06:45,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:06:45,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 592 [2025-01-09 21:06:45,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:06:55,518 INFO L124 PetriNetUnfolderBase]: 6427/48976 cut-off events. [2025-01-09 21:06:55,518 INFO L125 PetriNetUnfolderBase]: For 3013/3013 co-relation queries the response was YES. [2025-01-09 21:06:56,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58782 conditions, 48976 events. 6427/48976 cut-off events. For 3013/3013 co-relation queries the response was YES. Maximal size of possible extension queue 769. Compared 703954 event pairs, 1568 based on Foata normal form. 0/42470 useless extension candidates. Maximal degree in co-relation 58775. Up to 5941 conditions per place. [2025-01-09 21:06:56,418 INFO L140 encePairwiseOnDemand]: 561/592 looper letters, 60 selfloop transitions, 45 changer transitions 0/561 dead transitions. [2025-01-09 21:06:56,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 499 places, 561 transitions, 1414 flow [2025-01-09 21:06:56,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:06:56,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:06:56,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3025 transitions. [2025-01-09 21:06:56,424 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8516328828828829 [2025-01-09 21:06:56,424 INFO L175 Difference]: Start difference. First operand has 494 places, 496 transitions, 1014 flow. Second operand 6 states and 3025 transitions. [2025-01-09 21:06:56,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 499 places, 561 transitions, 1414 flow [2025-01-09 21:06:56,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 561 transitions, 1414 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:06:56,438 INFO L231 Difference]: Finished difference. Result has 504 places, 540 transitions, 1342 flow [2025-01-09 21:06:56,439 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=592, PETRI_DIFFERENCE_MINUEND_FLOW=1014, PETRI_DIFFERENCE_MINUEND_PLACES=494, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=496, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1342, PETRI_PLACES=504, PETRI_TRANSITIONS=540} [2025-01-09 21:06:56,439 INFO L279 CegarLoopForPetriNet]: 573 programPoint places, -69 predicate places. [2025-01-09 21:06:56,440 INFO L471 AbstractCegarLoop]: Abstraction has has 504 places, 540 transitions, 1342 flow [2025-01-09 21:06:56,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 487.5) internal successors, (2925), 6 states have internal predecessors, (2925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:06:56,441 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:06:56,441 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:06:56,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 21:06:56,442 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err4ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2025-01-09 21:06:56,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:06:56,442 INFO L85 PathProgramCache]: Analyzing trace with hash 639085315, now seen corresponding path program 1 times [2025-01-09 21:06:56,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:06:56,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126872265] [2025-01-09 21:06:56,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:06:56,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:06:56,459 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-01-09 21:06:56,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-01-09 21:06:56,467 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:06:56,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:06:57,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:06:57,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:06:57,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126872265] [2025-01-09 21:06:57,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126872265] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:06:57,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:06:57,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:06:57,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565211202] [2025-01-09 21:06:57,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:06:57,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:06:57,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:06:57,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:06:57,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:06:58,242 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 486 out of 592 [2025-01-09 21:06:58,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 504 places, 540 transitions, 1342 flow. Second operand has 6 states, 6 states have (on average 487.6666666666667) internal successors, (2926), 6 states have internal predecessors, (2926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:06:58,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:06:58,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 486 of 592 [2025-01-09 21:06:58,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand