./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.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 c18dd13658bb5739ed2db8c4c80ae330682b7c3cebd2ad85657518c27ca325b9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:22:39,290 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:22:39,357 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-01-09 21:22:39,361 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:22:39,361 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:22:39,386 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:22:39,386 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:22:39,386 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:22:39,387 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:22:39,387 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:22:39,388 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:22:39,388 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:22:39,389 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:22:39,389 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:22:39,389 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:22:39,389 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:22:39,389 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:22:39,389 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:22:39,389 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:22:39,390 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:22:39,390 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:22:39,390 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:22:39,390 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-01-09 21:22:39,390 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:22:39,390 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:22:39,390 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:22:39,390 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:22:39,390 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:22:39,391 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:22:39,391 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:22:39,391 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:22:39,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:22:39,391 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:22:39,391 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:22:39,391 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:22:39,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:22:39,392 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:22:39,392 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:22:39,392 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 21:22:39,392 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 21:22:39,392 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:22:39,392 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:22:39,392 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:22:39,392 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:22:39,392 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:22:39,392 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:22:39,392 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 -> c18dd13658bb5739ed2db8c4c80ae330682b7c3cebd2ad85657518c27ca325b9 [2025-01-09 21:22:39,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:22:39,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:22:39,689 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:22:39,690 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:22:39,691 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:22:39,692 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i [2025-01-09 21:22:40,942 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f8b7379f5/bd43ccda26314429a032b688696ebde8/FLAG2879fc73a [2025-01-09 21:22:41,367 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:22:41,370 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/06-symbeq_07-tricky_address2.i [2025-01-09 21:22:41,384 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f8b7379f5/bd43ccda26314429a032b688696ebde8/FLAG2879fc73a [2025-01-09 21:22:41,397 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f8b7379f5/bd43ccda26314429a032b688696ebde8 [2025-01-09 21:22:41,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:22:41,401 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:22:41,402 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:22:41,402 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:22:41,406 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:22:41,407 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:22:41" (1/1) ... [2025-01-09 21:22:41,408 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5630864c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:41, skipping insertion in model container [2025-01-09 21:22:41,408 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:22:41" (1/1) ... [2025-01-09 21:22:41,444 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:22:41,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:22:41,838 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:22:41,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:22:41,936 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:22:41,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:41 WrapperNode [2025-01-09 21:22:41,937 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:22:41,938 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:22:41,938 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:22:41,938 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:22:41,942 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:41" (1/1) ... [2025-01-09 21:22:41,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:41" (1/1) ... [2025-01-09 21:22:41,985 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 148 [2025-01-09 21:22:41,986 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:22:41,986 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:22:41,987 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:22:41,987 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:22:41,994 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:41" (1/1) ... [2025-01-09 21:22:41,994 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:41" (1/1) ... [2025-01-09 21:22:41,999 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:41" (1/1) ... [2025-01-09 21:22:41,999 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:41" (1/1) ... [2025-01-09 21:22:42,008 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:41" (1/1) ... [2025-01-09 21:22:42,010 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:41" (1/1) ... [2025-01-09 21:22:42,013 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:41" (1/1) ... [2025-01-09 21:22:42,018 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:41" (1/1) ... [2025-01-09 21:22:42,020 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:41" (1/1) ... [2025-01-09 21:22:42,023 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:22:42,030 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:22:42,030 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:22:42,030 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:22:42,031 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:41" (1/1) ... [2025-01-09 21:22:42,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:22:42,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:22:42,065 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 21:22:42,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 21:22:42,087 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-09 21:22:42,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-09 21:22:42,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-09 21:22:42,088 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-09 21:22:42,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:22:42,088 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-01-09 21:22:42,089 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-01-09 21:22:42,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 21:22:42,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:22:42,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:22:42,091 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-09 21:22:42,207 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:22:42,208 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:22:42,494 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 21:22:42,494 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:22:42,518 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:22:42,518 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 21:22:42,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:22:42 BoogieIcfgContainer [2025-01-09 21:22:42,518 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:22:42,522 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:22:42,522 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:22:42,526 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:22:42,527 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:22:41" (1/3) ... [2025-01-09 21:22:42,527 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe44ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:22:42, skipping insertion in model container [2025-01-09 21:22:42,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:22:41" (2/3) ... [2025-01-09 21:22:42,528 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe44ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:22:42, skipping insertion in model container [2025-01-09 21:22:42,528 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:22:42" (3/3) ... [2025-01-09 21:22:42,530 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_07-tricky_address2.i [2025-01-09 21:22:42,543 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:22:42,545 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_07-tricky_address2.i that has 2 procedures, 158 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2025-01-09 21:22:42,545 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 21:22:42,627 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:22:42,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 160 transitions, 324 flow [2025-01-09 21:22:42,781 INFO L124 PetriNetUnfolderBase]: 3/159 cut-off events. [2025-01-09 21:22:42,785 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:22:42,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 159 events. 3/159 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 79 event pairs, 0 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2025-01-09 21:22:42,796 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 160 transitions, 324 flow [2025-01-09 21:22:42,802 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 159 transitions, 321 flow [2025-01-09 21:22:42,810 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:22:42,823 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;@1284a590, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:22:42,823 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-01-09 21:22:42,866 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:22:42,871 INFO L124 PetriNetUnfolderBase]: 3/112 cut-off events. [2025-01-09 21:22:42,871 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:22:42,871 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:42,872 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] [2025-01-09 21:22:42,872 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:42,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:42,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1264436240, now seen corresponding path program 1 times [2025-01-09 21:22:42,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:42,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704441981] [2025-01-09 21:22:42,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:42,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:42,987 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-01-09 21:22:43,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-01-09 21:22:43,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:43,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:43,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:43,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:43,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704441981] [2025-01-09 21:22:43,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704441981] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:43,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:43,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 21:22:43,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210810734] [2025-01-09 21:22:43,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:43,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:22:43,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:43,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:22:43,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:22:43,347 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 160 [2025-01-09 21:22:43,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 159 transitions, 321 flow. Second operand has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:22:43,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:43,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 160 [2025-01-09 21:22:43,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:43,444 INFO L124 PetriNetUnfolderBase]: 7/221 cut-off events. [2025-01-09 21:22:43,444 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:22:43,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 221 events. 7/221 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 319 event pairs, 6 based on Foata normal form. 5/214 useless extension candidates. Maximal degree in co-relation 144. Up to 24 conditions per place. [2025-01-09 21:22:43,448 INFO L140 encePairwiseOnDemand]: 155/160 looper letters, 10 selfloop transitions, 2 changer transitions 1/158 dead transitions. [2025-01-09 21:22:43,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 158 transitions, 343 flow [2025-01-09 21:22:43,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:22:43,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:22:43,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 456 transitions. [2025-01-09 21:22:43,467 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.95 [2025-01-09 21:22:43,470 INFO L175 Difference]: Start difference. First operand has 160 places, 159 transitions, 321 flow. Second operand 3 states and 456 transitions. [2025-01-09 21:22:43,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 158 transitions, 343 flow [2025-01-09 21:22:43,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 158 transitions, 342 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-09 21:22:43,483 INFO L231 Difference]: Finished difference. Result has 162 places, 157 transitions, 326 flow [2025-01-09 21:22:43,486 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=162, PETRI_TRANSITIONS=157} [2025-01-09 21:22:43,492 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 2 predicate places. [2025-01-09 21:22:43,492 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 157 transitions, 326 flow [2025-01-09 21:22:43,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:22:43,494 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:43,494 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:22:43,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 21:22:43,494 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:43,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:43,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1259896308, now seen corresponding path program 1 times [2025-01-09 21:22:43,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:43,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283181802] [2025-01-09 21:22:43,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:43,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:43,526 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-01-09 21:22:43,550 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-01-09 21:22:43,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:43,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:43,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:43,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:43,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283181802] [2025-01-09 21:22:43,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283181802] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 21:22:43,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945381733] [2025-01-09 21:22:43,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:43,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:22:43,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:22:43,745 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:22:43,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 21:22:43,814 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-01-09 21:22:43,858 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-01-09 21:22:43,858 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:43,858 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:43,861 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 21:22:43,867 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:22:43,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:43,941 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 21:22:44,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:44,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945381733] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 21:22:44,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 21:22:44,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-01-09 21:22:44,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642675943] [2025-01-09 21:22:44,005 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 21:22:44,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 21:22:44,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:44,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 21:22:44,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-01-09 21:22:44,042 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-01-09 21:22:44,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 157 transitions, 326 flow. Second operand has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:22:44,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:44,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-01-09 21:22:44,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:44,205 INFO L124 PetriNetUnfolderBase]: 7/227 cut-off events. [2025-01-09 21:22:44,206 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:22:44,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 227 events. 7/227 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 314 event pairs, 6 based on Foata normal form. 2/218 useless extension candidates. Maximal degree in co-relation 191. Up to 24 conditions per place. [2025-01-09 21:22:44,208 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 14 selfloop transitions, 9 changer transitions 0/165 dead transitions. [2025-01-09 21:22:44,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 165 transitions, 390 flow [2025-01-09 21:22:44,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 21:22:44,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-09 21:22:44,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1321 transitions. [2025-01-09 21:22:44,212 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9173611111111111 [2025-01-09 21:22:44,214 INFO L175 Difference]: Start difference. First operand has 162 places, 157 transitions, 326 flow. Second operand 9 states and 1321 transitions. [2025-01-09 21:22:44,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 165 transitions, 390 flow [2025-01-09 21:22:44,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 165 transitions, 388 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-09 21:22:44,220 INFO L231 Difference]: Finished difference. Result has 171 places, 163 transitions, 374 flow [2025-01-09 21:22:44,222 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=374, PETRI_PLACES=171, PETRI_TRANSITIONS=163} [2025-01-09 21:22:44,223 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 11 predicate places. [2025-01-09 21:22:44,223 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 163 transitions, 374 flow [2025-01-09 21:22:44,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 146.0) internal successors, (1460), 10 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:22:44,224 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:44,224 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:22:44,234 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 21:22:44,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:22:44,425 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:44,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:44,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1162936180, now seen corresponding path program 2 times [2025-01-09 21:22:44,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:44,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374511862] [2025-01-09 21:22:44,427 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:22:44,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:44,447 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 109 statements into 2 equivalence classes. [2025-01-09 21:22:44,464 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 94 of 109 statements. [2025-01-09 21:22:44,465 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:22:44,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:45,095 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-09 21:22:45,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:45,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374511862] [2025-01-09 21:22:45,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374511862] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:45,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:45,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:22:45,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677845227] [2025-01-09 21:22:45,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:45,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:22:45,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:45,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:22:45,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:22:45,689 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 160 [2025-01-09 21:22:45,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 163 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 135.66666666666666) internal successors, (814), 6 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:22:45,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:45,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 160 [2025-01-09 21:22:45,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:45,934 INFO L124 PetriNetUnfolderBase]: 129/676 cut-off events. [2025-01-09 21:22:45,934 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-01-09 21:22:45,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1006 conditions, 676 events. 129/676 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3534 event pairs, 46 based on Foata normal form. 0/616 useless extension candidates. Maximal degree in co-relation 893. Up to 178 conditions per place. [2025-01-09 21:22:45,941 INFO L140 encePairwiseOnDemand]: 149/160 looper letters, 43 selfloop transitions, 22 changer transitions 0/204 dead transitions. [2025-01-09 21:22:45,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 204 transitions, 586 flow [2025-01-09 21:22:45,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:22:45,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:22:45,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 870 transitions. [2025-01-09 21:22:45,946 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.90625 [2025-01-09 21:22:45,946 INFO L175 Difference]: Start difference. First operand has 171 places, 163 transitions, 374 flow. Second operand 6 states and 870 transitions. [2025-01-09 21:22:45,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 204 transitions, 586 flow [2025-01-09 21:22:45,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 204 transitions, 580 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-01-09 21:22:45,953 INFO L231 Difference]: Finished difference. Result has 179 places, 185 transitions, 514 flow [2025-01-09 21:22:45,953 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=514, PETRI_PLACES=179, PETRI_TRANSITIONS=185} [2025-01-09 21:22:45,955 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 19 predicate places. [2025-01-09 21:22:45,955 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 185 transitions, 514 flow [2025-01-09 21:22:45,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.66666666666666) internal successors, (814), 6 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:22:45,956 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:45,956 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:22:45,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 21:22:45,957 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:45,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:45,958 INFO L85 PathProgramCache]: Analyzing trace with hash -731497224, now seen corresponding path program 1 times [2025-01-09 21:22:45,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:45,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198174361] [2025-01-09 21:22:45,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:45,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:45,986 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-01-09 21:22:46,001 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-01-09 21:22:46,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:46,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:46,221 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:46,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:46,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198174361] [2025-01-09 21:22:46,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198174361] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 21:22:46,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527756306] [2025-01-09 21:22:46,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:46,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:22:46,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:22:46,224 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:22:46,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 21:22:46,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-01-09 21:22:46,331 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-01-09 21:22:46,332 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:46,332 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:46,336 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 21:22:46,339 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:22:46,411 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:46,412 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 21:22:46,524 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:46,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527756306] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 21:22:46,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 21:22:46,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-01-09 21:22:46,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725263576] [2025-01-09 21:22:46,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 21:22:46,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-09 21:22:46,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:46,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-09 21:22:46,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-01-09 21:22:46,564 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-01-09 21:22:46,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 185 transitions, 514 flow. Second operand has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:22:46,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:46,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-01-09 21:22:46,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:46,867 INFO L124 PetriNetUnfolderBase]: 41/503 cut-off events. [2025-01-09 21:22:46,868 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2025-01-09 21:22:46,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 814 conditions, 503 events. 41/503 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 2256 event pairs, 16 based on Foata normal form. 4/480 useless extension candidates. Maximal degree in co-relation 626. Up to 55 conditions per place. [2025-01-09 21:22:46,872 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 18 selfloop transitions, 21 changer transitions 0/203 dead transitions. [2025-01-09 21:22:46,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 203 transitions, 680 flow [2025-01-09 21:22:46,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-09 21:22:46,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-01-09 21:22:46,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3067 transitions. [2025-01-09 21:22:46,882 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.912797619047619 [2025-01-09 21:22:46,882 INFO L175 Difference]: Start difference. First operand has 179 places, 185 transitions, 514 flow. Second operand 21 states and 3067 transitions. [2025-01-09 21:22:46,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 203 transitions, 680 flow [2025-01-09 21:22:46,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 203 transitions, 680 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:22:46,891 INFO L231 Difference]: Finished difference. Result has 204 places, 198 transitions, 644 flow [2025-01-09 21:22:46,892 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=644, PETRI_PLACES=204, PETRI_TRANSITIONS=198} [2025-01-09 21:22:46,893 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 44 predicate places. [2025-01-09 21:22:46,893 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 198 transitions, 644 flow [2025-01-09 21:22:46,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 146.0) internal successors, (2628), 18 states have internal predecessors, (2628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:22:46,895 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:46,895 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:22:46,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-09 21:22:47,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:22:47,096 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:47,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:47,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1735121400, now seen corresponding path program 2 times [2025-01-09 21:22:47,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:47,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713740169] [2025-01-09 21:22:47,098 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:22:47,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:47,119 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 137 statements into 2 equivalence classes. [2025-01-09 21:22:47,129 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 102 of 137 statements. [2025-01-09 21:22:47,130 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:22:47,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:47,538 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-01-09 21:22:47,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:47,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713740169] [2025-01-09 21:22:47,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713740169] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:47,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:47,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:22:47,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633469080] [2025-01-09 21:22:47,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:47,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:22:47,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:47,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:22:47,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:22:47,981 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 160 [2025-01-09 21:22:47,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 198 transitions, 644 flow. Second operand has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:22:47,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:47,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 160 [2025-01-09 21:22:47,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:48,358 INFO L124 PetriNetUnfolderBase]: 306/1335 cut-off events. [2025-01-09 21:22:48,358 INFO L125 PetriNetUnfolderBase]: For 285/295 co-relation queries the response was YES. [2025-01-09 21:22:48,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2502 conditions, 1335 events. 306/1335 cut-off events. For 285/295 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 9024 event pairs, 116 based on Foata normal form. 5/1228 useless extension candidates. Maximal degree in co-relation 2305. Up to 464 conditions per place. [2025-01-09 21:22:48,368 INFO L140 encePairwiseOnDemand]: 145/160 looper letters, 72 selfloop transitions, 36 changer transitions 2/255 dead transitions. [2025-01-09 21:22:48,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 255 transitions, 1016 flow [2025-01-09 21:22:48,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:22:48,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:22:48,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 856 transitions. [2025-01-09 21:22:48,371 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8916666666666667 [2025-01-09 21:22:48,371 INFO L175 Difference]: Start difference. First operand has 204 places, 198 transitions, 644 flow. Second operand 6 states and 856 transitions. [2025-01-09 21:22:48,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 255 transitions, 1016 flow [2025-01-09 21:22:48,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 255 transitions, 992 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-01-09 21:22:48,378 INFO L231 Difference]: Finished difference. Result has 207 places, 230 transitions, 872 flow [2025-01-09 21:22:48,379 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=872, PETRI_PLACES=207, PETRI_TRANSITIONS=230} [2025-01-09 21:22:48,380 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 47 predicate places. [2025-01-09 21:22:48,380 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 230 transitions, 872 flow [2025-01-09 21:22:48,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 130.66666666666666) internal successors, (784), 6 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:22:48,380 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:48,380 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:22:48,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 21:22:48,381 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:48,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:48,382 INFO L85 PathProgramCache]: Analyzing trace with hash -2131672241, now seen corresponding path program 1 times [2025-01-09 21:22:48,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:48,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773546146] [2025-01-09 21:22:48,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:48,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:48,396 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-01-09 21:22:48,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-01-09 21:22:48,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:48,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:48,735 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:48,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:48,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773546146] [2025-01-09 21:22:48,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773546146] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 21:22:48,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416185573] [2025-01-09 21:22:48,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:48,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:22:48,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:22:48,739 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 21:22:48,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 21:22:48,804 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-01-09 21:22:48,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-01-09 21:22:48,842 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:48,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:48,844 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-09 21:22:48,847 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 21:22:48,953 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:48,954 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 21:22:49,178 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:49,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416185573] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 21:22:49,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 21:22:49,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2025-01-09 21:22:49,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121432748] [2025-01-09 21:22:49,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 21:22:49,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-01-09 21:22:49,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:49,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-01-09 21:22:49,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-01-09 21:22:49,220 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 160 [2025-01-09 21:22:49,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 230 transitions, 872 flow. Second operand has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:22:49,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:49,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 160 [2025-01-09 21:22:49,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:49,695 INFO L124 PetriNetUnfolderBase]: 120/935 cut-off events. [2025-01-09 21:22:49,696 INFO L125 PetriNetUnfolderBase]: For 414/414 co-relation queries the response was YES. [2025-01-09 21:22:49,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1833 conditions, 935 events. 120/935 cut-off events. For 414/414 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5947 event pairs, 33 based on Foata normal form. 3/879 useless extension candidates. Maximal degree in co-relation 1557. Up to 134 conditions per place. [2025-01-09 21:22:49,705 INFO L140 encePairwiseOnDemand]: 154/160 looper letters, 21 selfloop transitions, 30 changer transitions 0/247 dead transitions. [2025-01-09 21:22:49,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 247 transitions, 1096 flow [2025-01-09 21:22:49,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-01-09 21:22:49,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2025-01-09 21:22:49,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4374 transitions. [2025-01-09 21:22:49,715 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.91125 [2025-01-09 21:22:49,716 INFO L175 Difference]: Start difference. First operand has 207 places, 230 transitions, 872 flow. Second operand 30 states and 4374 transitions. [2025-01-09 21:22:49,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 247 transitions, 1096 flow [2025-01-09 21:22:49,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 247 transitions, 1072 flow, removed 12 selfloop flow, removed 0 redundant places. [2025-01-09 21:22:49,727 INFO L231 Difference]: Finished difference. Result has 239 places, 240 transitions, 1000 flow [2025-01-09 21:22:49,727 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1000, PETRI_PLACES=239, PETRI_TRANSITIONS=240} [2025-01-09 21:22:49,729 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 79 predicate places. [2025-01-09 21:22:49,729 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 240 transitions, 1000 flow [2025-01-09 21:22:49,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 146.08695652173913) internal successors, (3360), 23 states have internal predecessors, (3360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:22:49,731 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:49,732 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:22:49,740 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 21:22:49,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 21:22:49,933 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:49,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:49,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1806519347, now seen corresponding path program 2 times [2025-01-09 21:22:49,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:49,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003821178] [2025-01-09 21:22:49,934 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:22:49,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:49,951 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 154 statements into 2 equivalence classes. [2025-01-09 21:22:49,957 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 104 of 154 statements. [2025-01-09 21:22:49,957 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:22:49,957 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:50,302 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-01-09 21:22:50,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:50,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003821178] [2025-01-09 21:22:50,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003821178] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:50,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:50,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:22:50,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009438914] [2025-01-09 21:22:50,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:50,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:22:50,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:50,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:22:50,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:22:50,829 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 160 [2025-01-09 21:22:50,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 240 transitions, 1000 flow. Second operand has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:22:50,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:50,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 160 [2025-01-09 21:22:50,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:51,118 INFO L124 PetriNetUnfolderBase]: 300/1427 cut-off events. [2025-01-09 21:22:51,119 INFO L125 PetriNetUnfolderBase]: For 878/918 co-relation queries the response was YES. [2025-01-09 21:22:51,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3261 conditions, 1427 events. 300/1427 cut-off events. For 878/918 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 10136 event pairs, 66 based on Foata normal form. 10/1390 useless extension candidates. Maximal degree in co-relation 2983. Up to 443 conditions per place. [2025-01-09 21:22:51,131 INFO L140 encePairwiseOnDemand]: 149/160 looper letters, 79 selfloop transitions, 49 changer transitions 0/306 dead transitions. [2025-01-09 21:22:51,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 306 transitions, 1555 flow [2025-01-09 21:22:51,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:22:51,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:22:51,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 880 transitions. [2025-01-09 21:22:51,134 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2025-01-09 21:22:51,135 INFO L175 Difference]: Start difference. First operand has 239 places, 240 transitions, 1000 flow. Second operand 6 states and 880 transitions. [2025-01-09 21:22:51,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 306 transitions, 1555 flow [2025-01-09 21:22:51,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 306 transitions, 1509 flow, removed 5 selfloop flow, removed 18 redundant places. [2025-01-09 21:22:51,150 INFO L231 Difference]: Finished difference. Result has 230 places, 281 transitions, 1370 flow [2025-01-09 21:22:51,151 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=954, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1370, PETRI_PLACES=230, PETRI_TRANSITIONS=281} [2025-01-09 21:22:51,153 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 70 predicate places. [2025-01-09 21:22:51,153 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 281 transitions, 1370 flow [2025-01-09 21:22:51,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.5) internal successors, (825), 6 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:22:51,154 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:51,154 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:22:51,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 21:22:51,154 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:51,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:51,156 INFO L85 PathProgramCache]: Analyzing trace with hash -651159112, now seen corresponding path program 1 times [2025-01-09 21:22:51,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:51,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090968840] [2025-01-09 21:22:51,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:51,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:51,171 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-01-09 21:22:51,183 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-01-09 21:22:51,184 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:51,184 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:51,616 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-01-09 21:22:51,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:51,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090968840] [2025-01-09 21:22:51,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090968840] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:51,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:51,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:22:51,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055663234] [2025-01-09 21:22:51,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:51,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:22:51,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:51,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:22:51,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:22:51,995 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 160 [2025-01-09 21:22:51,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 281 transitions, 1370 flow. Second operand has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:22:51,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:51,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 160 [2025-01-09 21:22:51,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:52,511 INFO L124 PetriNetUnfolderBase]: 569/2203 cut-off events. [2025-01-09 21:22:52,511 INFO L125 PetriNetUnfolderBase]: For 2425/2485 co-relation queries the response was YES. [2025-01-09 21:22:52,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5833 conditions, 2203 events. 569/2203 cut-off events. For 2425/2485 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 17251 event pairs, 130 based on Foata normal form. 12/2129 useless extension candidates. Maximal degree in co-relation 5572. Up to 803 conditions per place. [2025-01-09 21:22:52,531 INFO L140 encePairwiseOnDemand]: 145/160 looper letters, 118 selfloop transitions, 78 changer transitions 11/375 dead transitions. [2025-01-09 21:22:52,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 375 transitions, 2308 flow [2025-01-09 21:22:52,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:22:52,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:22:52,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 866 transitions. [2025-01-09 21:22:52,534 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9020833333333333 [2025-01-09 21:22:52,534 INFO L175 Difference]: Start difference. First operand has 230 places, 281 transitions, 1370 flow. Second operand 6 states and 866 transitions. [2025-01-09 21:22:52,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 375 transitions, 2308 flow [2025-01-09 21:22:52,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 375 transitions, 2306 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-01-09 21:22:52,556 INFO L231 Difference]: Finished difference. Result has 239 places, 329 transitions, 1974 flow [2025-01-09 21:22:52,557 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=1368, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1974, PETRI_PLACES=239, PETRI_TRANSITIONS=329} [2025-01-09 21:22:52,559 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 79 predicate places. [2025-01-09 21:22:52,559 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 329 transitions, 1974 flow [2025-01-09 21:22:52,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.5) internal successors, (795), 6 states have internal predecessors, (795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:22:52,560 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:52,560 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:22:52,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 21:22:52,561 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:52,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:52,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1171562897, now seen corresponding path program 1 times [2025-01-09 21:22:52,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:52,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067625563] [2025-01-09 21:22:52,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:52,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:52,586 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-09 21:22:52,694 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 21:22:52,694 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:52,694 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:00,959 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-01-09 21:23:00,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:00,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067625563] [2025-01-09 21:23:00,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067625563] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:00,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:00,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-01-09 21:23:00,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274916492] [2025-01-09 21:23:00,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:00,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-09 21:23:00,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:00,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-09 21:23:00,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2025-01-09 21:23:02,851 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 160 [2025-01-09 21:23:02,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 329 transitions, 1974 flow. Second operand has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:23:02,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:02,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 160 [2025-01-09 21:23:02,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:04,768 INFO L124 PetriNetUnfolderBase]: 1232/4499 cut-off events. [2025-01-09 21:23:04,768 INFO L125 PetriNetUnfolderBase]: For 9425/9666 co-relation queries the response was YES. [2025-01-09 21:23:04,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14333 conditions, 4499 events. 1232/4499 cut-off events. For 9425/9666 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 42004 event pairs, 133 based on Foata normal form. 159/4607 useless extension candidates. Maximal degree in co-relation 14056. Up to 884 conditions per place. [2025-01-09 21:23:04,816 INFO L140 encePairwiseOnDemand]: 133/160 looper letters, 364 selfloop transitions, 83 changer transitions 93/697 dead transitions. [2025-01-09 21:23:04,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 697 transitions, 6113 flow [2025-01-09 21:23:04,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-09 21:23:04,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2025-01-09 21:23:04,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2449 transitions. [2025-01-09 21:23:04,822 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8055921052631579 [2025-01-09 21:23:04,822 INFO L175 Difference]: Start difference. First operand has 239 places, 329 transitions, 1974 flow. Second operand 19 states and 2449 transitions. [2025-01-09 21:23:04,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 697 transitions, 6113 flow [2025-01-09 21:23:04,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 697 transitions, 6027 flow, removed 43 selfloop flow, removed 0 redundant places. [2025-01-09 21:23:04,923 INFO L231 Difference]: Finished difference. Result has 268 places, 402 transitions, 3022 flow [2025-01-09 21:23:04,924 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=1940, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3022, PETRI_PLACES=268, PETRI_TRANSITIONS=402} [2025-01-09 21:23:04,925 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 108 predicate places. [2025-01-09 21:23:04,925 INFO L471 AbstractCegarLoop]: Abstraction has has 268 places, 402 transitions, 3022 flow [2025-01-09 21:23:04,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:23:04,926 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:04,926 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:23:04,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 21:23:04,927 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:23:04,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:04,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1778251159, now seen corresponding path program 2 times [2025-01-09 21:23:04,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:04,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640710868] [2025-01-09 21:23:04,928 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:23:04,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:04,944 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 168 statements into 2 equivalence classes. [2025-01-09 21:23:04,972 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 118 of 168 statements. [2025-01-09 21:23:04,972 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:23:04,972 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:08,898 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-01-09 21:23:08,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:08,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640710868] [2025-01-09 21:23:08,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640710868] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:08,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:08,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-01-09 21:23:08,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522313426] [2025-01-09 21:23:08,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:08,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-09 21:23:08,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:08,900 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-09 21:23:08,901 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2025-01-09 21:23:11,517 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 160 [2025-01-09 21:23:11,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 402 transitions, 3022 flow. Second operand has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:23:11,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:11,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 160 [2025-01-09 21:23:11,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:13,208 INFO L124 PetriNetUnfolderBase]: 1203/4432 cut-off events. [2025-01-09 21:23:13,208 INFO L125 PetriNetUnfolderBase]: For 13736/14024 co-relation queries the response was YES. [2025-01-09 21:23:13,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16372 conditions, 4432 events. 1203/4432 cut-off events. For 13736/14024 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 41738 event pairs, 182 based on Foata normal form. 166/4543 useless extension candidates. Maximal degree in co-relation 16083. Up to 1196 conditions per place. [2025-01-09 21:23:13,251 INFO L140 encePairwiseOnDemand]: 133/160 looper letters, 309 selfloop transitions, 119 changer transitions 74/659 dead transitions. [2025-01-09 21:23:13,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 659 transitions, 6426 flow [2025-01-09 21:23:13,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-09 21:23:13,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2025-01-09 21:23:13,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2177 transitions. [2025-01-09 21:23:13,254 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8003676470588236 [2025-01-09 21:23:13,254 INFO L175 Difference]: Start difference. First operand has 268 places, 402 transitions, 3022 flow. Second operand 17 states and 2177 transitions. [2025-01-09 21:23:13,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 659 transitions, 6426 flow [2025-01-09 21:23:13,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 659 transitions, 6409 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-01-09 21:23:13,342 INFO L231 Difference]: Finished difference. Result has 283 places, 435 transitions, 3807 flow [2025-01-09 21:23:13,346 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=3007, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3807, PETRI_PLACES=283, PETRI_TRANSITIONS=435} [2025-01-09 21:23:13,347 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 123 predicate places. [2025-01-09 21:23:13,347 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 435 transitions, 3807 flow [2025-01-09 21:23:13,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:23:13,348 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:13,348 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:23:13,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 21:23:13,348 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:23:13,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:13,350 INFO L85 PathProgramCache]: Analyzing trace with hash 2074843823, now seen corresponding path program 1 times [2025-01-09 21:23:13,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:13,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913628132] [2025-01-09 21:23:13,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:23:13,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:13,363 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-09 21:23:13,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 21:23:13,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:23:13,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:18,041 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-01-09 21:23:18,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:18,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913628132] [2025-01-09 21:23:18,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913628132] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:18,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:18,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-01-09 21:23:18,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945173490] [2025-01-09 21:23:18,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:18,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-09 21:23:18,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:18,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-09 21:23:18,043 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2025-01-09 21:23:20,075 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 160 [2025-01-09 21:23:20,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 435 transitions, 3807 flow. Second operand has 14 states, 14 states have (on average 125.5) internal successors, (1757), 14 states have internal predecessors, (1757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:23:20,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:20,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 160 [2025-01-09 21:23:20,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:21,554 INFO L124 PetriNetUnfolderBase]: 1465/5656 cut-off events. [2025-01-09 21:23:21,554 INFO L125 PetriNetUnfolderBase]: For 28147/28783 co-relation queries the response was YES. [2025-01-09 21:23:21,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23164 conditions, 5656 events. 1465/5656 cut-off events. For 28147/28783 co-relation queries the response was YES. Maximal size of possible extension queue 393. Compared 59089 event pairs, 116 based on Foata normal form. 217/5812 useless extension candidates. Maximal degree in co-relation 22868. Up to 1005 conditions per place. [2025-01-09 21:23:21,597 INFO L140 encePairwiseOnDemand]: 138/160 looper letters, 395 selfloop transitions, 116 changer transitions 86/789 dead transitions. [2025-01-09 21:23:21,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 789 transitions, 9096 flow [2025-01-09 21:23:21,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-01-09 21:23:21,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-01-09 21:23:21,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2868 transitions. [2025-01-09 21:23:21,601 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8147727272727273 [2025-01-09 21:23:21,601 INFO L175 Difference]: Start difference. First operand has 283 places, 435 transitions, 3807 flow. Second operand 22 states and 2868 transitions. [2025-01-09 21:23:21,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 789 transitions, 9096 flow [2025-01-09 21:23:21,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 789 transitions, 8981 flow, removed 28 selfloop flow, removed 10 redundant places. [2025-01-09 21:23:21,771 INFO L231 Difference]: Finished difference. Result has 307 places, 514 transitions, 5043 flow [2025-01-09 21:23:21,772 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=3736, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=5043, PETRI_PLACES=307, PETRI_TRANSITIONS=514} [2025-01-09 21:23:21,773 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 147 predicate places. [2025-01-09 21:23:21,773 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 514 transitions, 5043 flow [2025-01-09 21:23:21,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 125.5) internal successors, (1757), 14 states have internal predecessors, (1757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:23:21,774 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:21,775 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:23:21,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-09 21:23:21,775 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:23:21,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:21,776 INFO L85 PathProgramCache]: Analyzing trace with hash 898994643, now seen corresponding path program 3 times [2025-01-09 21:23:21,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:21,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360910810] [2025-01-09 21:23:21,776 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 21:23:21,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:21,789 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 168 statements into 11 equivalence classes. [2025-01-09 21:23:21,809 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 118 of 168 statements. [2025-01-09 21:23:21,811 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-09 21:23:21,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:25,543 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2025-01-09 21:23:25,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:25,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360910810] [2025-01-09 21:23:25,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360910810] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:25,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:25,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-01-09 21:23:25,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90352585] [2025-01-09 21:23:25,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:25,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-09 21:23:25,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:25,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-09 21:23:25,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2025-01-09 21:23:28,692 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 160 [2025-01-09 21:23:28,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 514 transitions, 5043 flow. Second operand has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:23:28,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:28,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 160 [2025-01-09 21:23:28,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:30,587 INFO L124 PetriNetUnfolderBase]: 1776/6439 cut-off events. [2025-01-09 21:23:30,587 INFO L125 PetriNetUnfolderBase]: For 36771/37158 co-relation queries the response was YES. [2025-01-09 21:23:30,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28723 conditions, 6439 events. 1776/6439 cut-off events. For 36771/37158 co-relation queries the response was YES. Maximal size of possible extension queue 421. Compared 66423 event pairs, 285 based on Foata normal form. 327/6697 useless extension candidates. Maximal degree in co-relation 28416. Up to 1442 conditions per place. [2025-01-09 21:23:30,631 INFO L140 encePairwiseOnDemand]: 135/160 looper letters, 304 selfloop transitions, 208 changer transitions 55/730 dead transitions. [2025-01-09 21:23:30,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 730 transitions, 8732 flow [2025-01-09 21:23:30,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-09 21:23:30,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-01-09 21:23:30,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2048 transitions. [2025-01-09 21:23:30,633 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8 [2025-01-09 21:23:30,634 INFO L175 Difference]: Start difference. First operand has 307 places, 514 transitions, 5043 flow. Second operand 16 states and 2048 transitions. [2025-01-09 21:23:30,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 730 transitions, 8732 flow [2025-01-09 21:23:30,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 730 transitions, 8640 flow, removed 37 selfloop flow, removed 7 redundant places. [2025-01-09 21:23:30,829 INFO L231 Difference]: Finished difference. Result has 320 places, 539 transitions, 6003 flow [2025-01-09 21:23:30,830 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=4999, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=514, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=183, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=6003, PETRI_PLACES=320, PETRI_TRANSITIONS=539} [2025-01-09 21:23:30,830 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 160 predicate places. [2025-01-09 21:23:30,830 INFO L471 AbstractCegarLoop]: Abstraction has has 320 places, 539 transitions, 6003 flow [2025-01-09 21:23:30,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:23:30,831 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:30,831 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:23:30,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-09 21:23:30,832 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:23:30,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:30,833 INFO L85 PathProgramCache]: Analyzing trace with hash -610980647, now seen corresponding path program 4 times [2025-01-09 21:23:30,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:30,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052203540] [2025-01-09 21:23:30,833 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-09 21:23:30,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:30,845 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 168 statements into 2 equivalence classes. [2025-01-09 21:23:30,871 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 21:23:30,872 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-09 21:23:30,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:31,647 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2025-01-09 21:23:31,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:31,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052203540] [2025-01-09 21:23:31,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052203540] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:31,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:31,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-01-09 21:23:31,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626832520] [2025-01-09 21:23:31,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:31,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-09 21:23:31,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:31,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-09 21:23:31,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2025-01-09 21:23:34,000 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 160 [2025-01-09 21:23:34,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 539 transitions, 6003 flow. Second operand has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:23:34,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:34,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 160 [2025-01-09 21:23:34,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:36,079 INFO L124 PetriNetUnfolderBase]: 2579/8834 cut-off events. [2025-01-09 21:23:36,079 INFO L125 PetriNetUnfolderBase]: For 70543/71027 co-relation queries the response was YES. [2025-01-09 21:23:36,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43883 conditions, 8834 events. 2579/8834 cut-off events. For 70543/71027 co-relation queries the response was YES. Maximal size of possible extension queue 555. Compared 94129 event pairs, 288 based on Foata normal form. 265/9013 useless extension candidates. Maximal degree in co-relation 43571. Up to 1994 conditions per place. [2025-01-09 21:23:36,162 INFO L140 encePairwiseOnDemand]: 136/160 looper letters, 583 selfloop transitions, 177 changer transitions 84/1007 dead transitions. [2025-01-09 21:23:36,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 1007 transitions, 13984 flow [2025-01-09 21:23:36,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-01-09 21:23:36,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-01-09 21:23:36,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2604 transitions. [2025-01-09 21:23:36,165 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.81375 [2025-01-09 21:23:36,165 INFO L175 Difference]: Start difference. First operand has 320 places, 539 transitions, 6003 flow. Second operand 20 states and 2604 transitions. [2025-01-09 21:23:36,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 1007 transitions, 13984 flow [2025-01-09 21:23:36,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 1007 transitions, 13735 flow, removed 62 selfloop flow, removed 10 redundant places. [2025-01-09 21:23:36,615 INFO L231 Difference]: Finished difference. Result has 344 places, 636 transitions, 8418 flow [2025-01-09 21:23:36,615 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=5872, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=539, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8418, PETRI_PLACES=344, PETRI_TRANSITIONS=636} [2025-01-09 21:23:36,616 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 184 predicate places. [2025-01-09 21:23:36,616 INFO L471 AbstractCegarLoop]: Abstraction has has 344 places, 636 transitions, 8418 flow [2025-01-09 21:23:36,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:23:36,617 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:36,617 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:23:36,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-09 21:23:36,617 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:23:36,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:36,618 INFO L85 PathProgramCache]: Analyzing trace with hash -182636927, now seen corresponding path program 5 times [2025-01-09 21:23:36,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:36,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467918814] [2025-01-09 21:23:36,618 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-09 21:23:36,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:36,633 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 168 statements into 11 equivalence classes. [2025-01-09 21:23:36,658 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 21:23:36,658 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2025-01-09 21:23:36,658 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:37,367 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2025-01-09 21:23:37,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:37,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467918814] [2025-01-09 21:23:37,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467918814] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:37,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:37,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-09 21:23:37,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000682757] [2025-01-09 21:23:37,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:37,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-09 21:23:37,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:37,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-09 21:23:37,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2025-01-09 21:23:38,442 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 160 [2025-01-09 21:23:38,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 344 places, 636 transitions, 8418 flow. Second operand has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:23:38,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:38,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 160 [2025-01-09 21:23:38,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:40,350 INFO L124 PetriNetUnfolderBase]: 2480/8845 cut-off events. [2025-01-09 21:23:40,351 INFO L125 PetriNetUnfolderBase]: For 87614/88065 co-relation queries the response was YES. [2025-01-09 21:23:40,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46867 conditions, 8845 events. 2480/8845 cut-off events. For 87614/88065 co-relation queries the response was YES. Maximal size of possible extension queue 588. Compared 97893 event pairs, 381 based on Foata normal form. 345/9092 useless extension candidates. Maximal degree in co-relation 46540. Up to 1909 conditions per place. [2025-01-09 21:23:40,446 INFO L140 encePairwiseOnDemand]: 141/160 looper letters, 322 selfloop transitions, 286 changer transitions 39/821 dead transitions. [2025-01-09 21:23:40,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 821 transitions, 12120 flow [2025-01-09 21:23:40,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-09 21:23:40,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-01-09 21:23:40,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1639 transitions. [2025-01-09 21:23:40,448 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8536458333333333 [2025-01-09 21:23:40,448 INFO L175 Difference]: Start difference. First operand has 344 places, 636 transitions, 8418 flow. Second operand 12 states and 1639 transitions. [2025-01-09 21:23:40,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 821 transitions, 12120 flow [2025-01-09 21:23:40,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 821 transitions, 12054 flow, removed 18 selfloop flow, removed 5 redundant places. [2025-01-09 21:23:40,907 INFO L231 Difference]: Finished difference. Result has 351 places, 656 transitions, 9435 flow [2025-01-09 21:23:40,908 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=8367, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=636, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=263, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=9435, PETRI_PLACES=351, PETRI_TRANSITIONS=656} [2025-01-09 21:23:40,908 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 191 predicate places. [2025-01-09 21:23:40,908 INFO L471 AbstractCegarLoop]: Abstraction has has 351 places, 656 transitions, 9435 flow [2025-01-09 21:23:40,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 126.9090909090909) internal successors, (1396), 11 states have internal predecessors, (1396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:23:40,909 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:40,909 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:23:40,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-09 21:23:40,909 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:23:40,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:40,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1240406459, now seen corresponding path program 6 times [2025-01-09 21:23:40,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:40,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287965689] [2025-01-09 21:23:40,910 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-09 21:23:40,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:40,926 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 168 statements into 11 equivalence classes. [2025-01-09 21:23:40,945 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 116 of 168 statements. [2025-01-09 21:23:40,945 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-01-09 21:23:40,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:44,309 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2025-01-09 21:23:44,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:44,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287965689] [2025-01-09 21:23:44,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287965689] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:44,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:44,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-01-09 21:23:44,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711061951] [2025-01-09 21:23:44,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:44,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-09 21:23:44,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:44,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-09 21:23:44,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2025-01-09 21:23:46,697 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 160 [2025-01-09 21:23:46,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 656 transitions, 9435 flow. Second operand has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:23:46,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:46,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 160 [2025-01-09 21:23:46,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:51,134 INFO L124 PetriNetUnfolderBase]: 2940/10008 cut-off events. [2025-01-09 21:23:51,135 INFO L125 PetriNetUnfolderBase]: For 122607/123099 co-relation queries the response was YES. [2025-01-09 21:23:51,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57020 conditions, 10008 events. 2940/10008 cut-off events. For 122607/123099 co-relation queries the response was YES. Maximal size of possible extension queue 625. Compared 109807 event pairs, 375 based on Foata normal form. 245/10138 useless extension candidates. Maximal degree in co-relation 56692. Up to 2049 conditions per place. [2025-01-09 21:23:51,233 INFO L140 encePairwiseOnDemand]: 137/160 looper letters, 667 selfloop transitions, 212 changer transitions 56/1098 dead transitions. [2025-01-09 21:23:51,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 1098 transitions, 17839 flow [2025-01-09 21:23:51,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-01-09 21:23:51,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-01-09 21:23:51,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 2857 transitions. [2025-01-09 21:23:51,236 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8116477272727273 [2025-01-09 21:23:51,236 INFO L175 Difference]: Start difference. First operand has 351 places, 656 transitions, 9435 flow. Second operand 22 states and 2857 transitions. [2025-01-09 21:23:51,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 1098 transitions, 17839 flow [2025-01-09 21:23:51,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 1098 transitions, 17523 flow, removed 31 selfloop flow, removed 4 redundant places. [2025-01-09 21:23:51,917 INFO L231 Difference]: Finished difference. Result has 376 places, 719 transitions, 11142 flow [2025-01-09 21:23:51,918 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=160, PETRI_DIFFERENCE_MINUEND_FLOW=9224, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=656, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=151, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=11142, PETRI_PLACES=376, PETRI_TRANSITIONS=719} [2025-01-09 21:23:51,918 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, 216 predicate places. [2025-01-09 21:23:51,918 INFO L471 AbstractCegarLoop]: Abstraction has has 376 places, 719 transitions, 11142 flow [2025-01-09 21:23:51,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 120.92857142857143) internal successors, (1693), 14 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:23:51,919 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:51,919 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:23:51,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-09 21:23:51,919 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:23:51,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:51,920 INFO L85 PathProgramCache]: Analyzing trace with hash 900671063, now seen corresponding path program 7 times [2025-01-09 21:23:51,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:51,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915069777] [2025-01-09 21:23:51,920 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-09 21:23:51,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:51,929 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-09 21:23:51,952 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 21:23:51,952 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:23:51,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat