./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.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/04-mutex_10-ptrmunge_nr.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 b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:21:52,049 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:21:52,083 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-01-09 21:21:52,087 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:21:52,087 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:21:52,101 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:21:52,101 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:21:52,101 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:21:52,102 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:21:52,102 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:21:52,102 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:21:52,102 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:21:52,102 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:21:52,102 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:21:52,102 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:21:52,102 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:21:52,102 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:21:52,102 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:21:52,102 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:21:52,102 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:21:52,102 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:21:52,102 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:21:52,102 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-01-09 21:21:52,103 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:21:52,103 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:21:52,103 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:21:52,103 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:21:52,103 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:21:52,103 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:21:52,103 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:21:52,103 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:21:52,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:21:52,103 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:21:52,103 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:21:52,103 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:21:52,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:21:52,103 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:21:52,103 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:21:52,103 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 21:21:52,103 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 21:21:52,103 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:21:52,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:21:52,104 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:21:52,104 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:21:52,104 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:21:52,104 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:21:52,104 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 -> b7b2dab104eee1bd1f440bec4a0db415f1c26fa4fc41062d03a3a4935f69226f [2025-01-09 21:21:52,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:21:52,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:21:52,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:21:52,272 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:21:52,272 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:21:52,273 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2025-01-09 21:21:53,435 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/027291553/3e27f03822994628827c7267ad919f85/FLAG5ea08ac1c [2025-01-09 21:21:53,737 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:21:53,739 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_10-ptrmunge_nr.i [2025-01-09 21:21:53,752 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/027291553/3e27f03822994628827c7267ad919f85/FLAG5ea08ac1c [2025-01-09 21:21:53,998 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/027291553/3e27f03822994628827c7267ad919f85 [2025-01-09 21:21:54,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:21:54,002 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:21:54,004 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:21:54,004 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:21:54,007 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:21:54,007 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:21:54" (1/1) ... [2025-01-09 21:21:54,008 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33ff858a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:54, skipping insertion in model container [2025-01-09 21:21:54,008 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:21:54" (1/1) ... [2025-01-09 21:21:54,036 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:21:54,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:21:54,329 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:21:54,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:21:54,388 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:21:54,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:54 WrapperNode [2025-01-09 21:21:54,389 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:21:54,389 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:21:54,390 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:21:54,390 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:21:54,394 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:54" (1/1) ... [2025-01-09 21:21:54,402 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:54" (1/1) ... [2025-01-09 21:21:54,415 INFO L138 Inliner]: procedures = 263, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2025-01-09 21:21:54,415 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:21:54,416 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:21:54,416 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:21:54,416 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:21:54,422 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:54" (1/1) ... [2025-01-09 21:21:54,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:54" (1/1) ... [2025-01-09 21:21:54,424 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:54" (1/1) ... [2025-01-09 21:21:54,424 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:54" (1/1) ... [2025-01-09 21:21:54,429 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:54" (1/1) ... [2025-01-09 21:21:54,430 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:54" (1/1) ... [2025-01-09 21:21:54,431 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:54" (1/1) ... [2025-01-09 21:21:54,432 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:54" (1/1) ... [2025-01-09 21:21:54,432 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:54" (1/1) ... [2025-01-09 21:21:54,433 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:21:54,434 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:21:54,434 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:21:54,434 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:21:54,435 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:54" (1/1) ... [2025-01-09 21:21:54,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:21:54,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:21:54,466 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 21:21:54,478 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 21:21:54,493 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-09 21:21:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-09 21:21:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-09 21:21:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-09 21:21:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:21:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-01-09 21:21:54,494 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-01-09 21:21:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 21:21:54,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:21:54,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:21:54,495 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 21:21:54,583 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:21:54,584 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:21:54,780 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 21:21:54,780 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:21:54,801 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:21:54,802 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 21:21:54,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:21:54 BoogieIcfgContainer [2025-01-09 21:21:54,804 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:21:54,806 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:21:54,806 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:21:54,810 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:21:54,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:21:54" (1/3) ... [2025-01-09 21:21:54,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2576604e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:21:54, skipping insertion in model container [2025-01-09 21:21:54,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:21:54" (2/3) ... [2025-01-09 21:21:54,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2576604e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:21:54, skipping insertion in model container [2025-01-09 21:21:54,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:21:54" (3/3) ... [2025-01-09 21:21:54,811 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_10-ptrmunge_nr.i [2025-01-09 21:21:54,826 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:21:54,828 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_10-ptrmunge_nr.i that has 2 procedures, 95 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-01-09 21:21:54,828 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 21:21:54,894 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-01-09 21:21:54,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 94 transitions, 195 flow [2025-01-09 21:21:54,983 INFO L124 PetriNetUnfolderBase]: 0/93 cut-off events. [2025-01-09 21:21:54,985 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:21:54,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 93 events. 0/93 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 66 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-01-09 21:21:54,989 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 94 transitions, 195 flow [2025-01-09 21:21:54,992 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 88 transitions, 179 flow [2025-01-09 21:21:55,000 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:21:55,008 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;@7a80c4b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:21:55,009 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-01-09 21:21:55,020 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:21:55,020 INFO L124 PetriNetUnfolderBase]: 0/53 cut-off events. [2025-01-09 21:21:55,020 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:21:55,021 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:21:55,021 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] [2025-01-09 21:21:55,021 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:21:55,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:21:55,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1709663426, now seen corresponding path program 1 times [2025-01-09 21:21:55,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:21:55,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37516144] [2025-01-09 21:21:55,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:21:55,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:21:55,109 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-01-09 21:21:55,127 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-01-09 21:21:55,128 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:21:55,128 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:21:55,581 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 21:21:55,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:21:55,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37516144] [2025-01-09 21:21:55,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37516144] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:21:55,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:21:55,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:21:55,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248507507] [2025-01-09 21:21:55,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:21:55,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:21:55,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:21:55,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:21:55,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:21:55,754 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 94 [2025-01-09 21:21:55,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 88 transitions, 179 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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 21:21:55,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:21:55,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 94 [2025-01-09 21:21:55,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:21:55,905 INFO L124 PetriNetUnfolderBase]: 114/471 cut-off events. [2025-01-09 21:21:55,906 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:21:55,908 INFO L83 FinitePrefix]: Finished finitePrefix Result has 732 conditions, 471 events. 114/471 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2451 event pairs, 61 based on Foata normal form. 0/439 useless extension candidates. Maximal degree in co-relation 697. Up to 207 conditions per place. [2025-01-09 21:21:55,910 INFO L140 encePairwiseOnDemand]: 83/94 looper letters, 30 selfloop transitions, 22 changer transitions 0/117 dead transitions. [2025-01-09 21:21:55,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 117 transitions, 341 flow [2025-01-09 21:21:55,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:21:55,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:21:55,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 473 transitions. [2025-01-09 21:21:55,919 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8386524822695035 [2025-01-09 21:21:55,920 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 179 flow. Second operand 6 states and 473 transitions. [2025-01-09 21:21:55,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 117 transitions, 341 flow [2025-01-09 21:21:55,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 117 transitions, 340 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-09 21:21:55,926 INFO L231 Difference]: Finished difference. Result has 101 places, 109 transitions, 328 flow [2025-01-09 21:21:55,928 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=328, PETRI_PLACES=101, PETRI_TRANSITIONS=109} [2025-01-09 21:21:55,929 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 9 predicate places. [2025-01-09 21:21:55,930 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 109 transitions, 328 flow [2025-01-09 21:21:55,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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 21:21:55,930 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:21:55,930 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] [2025-01-09 21:21:55,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 21:21:55,930 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 21:21:55,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:21:55,931 INFO L85 PathProgramCache]: Analyzing trace with hash 914001375, now seen corresponding path program 1 times [2025-01-09 21:21:55,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:21:55,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757337705] [2025-01-09 21:21:55,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:21:55,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:21:55,941 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-01-09 21:21:55,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-01-09 21:21:55,952 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:21:55,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:21:56,178 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 21:21:56,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:21:56,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757337705] [2025-01-09 21:21:56,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757337705] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:21:56,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:21:56,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:21:56,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470396107] [2025-01-09 21:21:56,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:21:56,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:21:56,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:21:56,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:21:56,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:21:56,285 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 94 [2025-01-09 21:21:56,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 109 transitions, 328 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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 21:21:56,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:21:56,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 94 [2025-01-09 21:21:56,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:21:56,423 INFO L124 PetriNetUnfolderBase]: 152/588 cut-off events. [2025-01-09 21:21:56,423 INFO L125 PetriNetUnfolderBase]: For 136/155 co-relation queries the response was YES. [2025-01-09 21:21:56,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1106 conditions, 588 events. 152/588 cut-off events. For 136/155 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3336 event pairs, 61 based on Foata normal form. 5/564 useless extension candidates. Maximal degree in co-relation 1067. Up to 264 conditions per place. [2025-01-09 21:21:56,426 INFO L140 encePairwiseOnDemand]: 83/94 looper letters, 43 selfloop transitions, 26 changer transitions 0/138 dead transitions. [2025-01-09 21:21:56,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 138 transitions, 542 flow [2025-01-09 21:21:56,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:21:56,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:21:56,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 473 transitions. [2025-01-09 21:21:56,428 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8386524822695035 [2025-01-09 21:21:56,429 INFO L175 Difference]: Start difference. First operand has 101 places, 109 transitions, 328 flow. Second operand 6 states and 473 transitions. [2025-01-09 21:21:56,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 138 transitions, 542 flow [2025-01-09 21:21:56,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 138 transitions, 542 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:21:56,432 INFO L231 Difference]: Finished difference. Result has 111 places, 130 transitions, 512 flow [2025-01-09 21:21:56,432 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=512, PETRI_PLACES=111, PETRI_TRANSITIONS=130} [2025-01-09 21:21:56,433 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 19 predicate places. [2025-01-09 21:21:56,433 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 130 transitions, 512 flow [2025-01-09 21:21:56,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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 21:21:56,433 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:21:56,433 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] [2025-01-09 21:21:56,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 21:21:56,434 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:21:56,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:21:56,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1024991904, now seen corresponding path program 1 times [2025-01-09 21:21:56,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:21:56,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224504084] [2025-01-09 21:21:56,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:21:56,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:21:56,447 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-01-09 21:21:56,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-01-09 21:21:56,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:21:56,464 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:21:56,706 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 21:21:56,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:21:56,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224504084] [2025-01-09 21:21:56,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224504084] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:21:56,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:21:56,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:21:56,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854374783] [2025-01-09 21:21:56,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:21:56,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:21:56,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:21:56,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:21:56,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:21:56,842 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 94 [2025-01-09 21:21:56,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 130 transitions, 512 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 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 21:21:56,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:21:56,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 94 [2025-01-09 21:21:56,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:21:57,054 INFO L124 PetriNetUnfolderBase]: 292/943 cut-off events. [2025-01-09 21:21:57,054 INFO L125 PetriNetUnfolderBase]: For 589/609 co-relation queries the response was YES. [2025-01-09 21:21:57,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2305 conditions, 943 events. 292/943 cut-off events. For 589/609 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 5761 event pairs, 101 based on Foata normal form. 7/909 useless extension candidates. Maximal degree in co-relation 2261. Up to 528 conditions per place. [2025-01-09 21:21:57,060 INFO L140 encePairwiseOnDemand]: 79/94 looper letters, 68 selfloop transitions, 53 changer transitions 4/185 dead transitions. [2025-01-09 21:21:57,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 185 transitions, 1006 flow [2025-01-09 21:21:57,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:21:57,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:21:57,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2025-01-09 21:21:57,062 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8138297872340425 [2025-01-09 21:21:57,062 INFO L175 Difference]: Start difference. First operand has 111 places, 130 transitions, 512 flow. Second operand 6 states and 459 transitions. [2025-01-09 21:21:57,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 185 transitions, 1006 flow [2025-01-09 21:21:57,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 185 transitions, 1006 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:21:57,069 INFO L231 Difference]: Finished difference. Result has 121 places, 177 transitions, 994 flow [2025-01-09 21:21:57,069 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=512, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=994, PETRI_PLACES=121, PETRI_TRANSITIONS=177} [2025-01-09 21:21:57,070 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 29 predicate places. [2025-01-09 21:21:57,070 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 177 transitions, 994 flow [2025-01-09 21:21:57,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 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 21:21:57,070 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:21:57,070 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] [2025-01-09 21:21:57,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 21:21:57,071 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 21:21:57,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:21:57,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1016274529, now seen corresponding path program 1 times [2025-01-09 21:21:57,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:21:57,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19371427] [2025-01-09 21:21:57,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:21:57,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:21:57,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-01-09 21:21:57,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-01-09 21:21:57,091 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:21:57,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:21:57,297 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 21:21:57,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:21:57,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19371427] [2025-01-09 21:21:57,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19371427] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:21:57,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:21:57,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:21:57,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12291119] [2025-01-09 21:21:57,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:21:57,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:21:57,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:21:57,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:21:57,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:21:57,397 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 94 [2025-01-09 21:21:57,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 177 transitions, 994 flow. Second operand has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 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 21:21:57,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:21:57,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 94 [2025-01-09 21:21:57,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:21:57,578 INFO L124 PetriNetUnfolderBase]: 396/1208 cut-off events. [2025-01-09 21:21:57,578 INFO L125 PetriNetUnfolderBase]: For 1618/1665 co-relation queries the response was YES. [2025-01-09 21:21:57,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3580 conditions, 1208 events. 396/1208 cut-off events. For 1618/1665 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 7721 event pairs, 107 based on Foata normal form. 4/1182 useless extension candidates. Maximal degree in co-relation 3531. Up to 673 conditions per place. [2025-01-09 21:21:57,584 INFO L140 encePairwiseOnDemand]: 79/94 looper letters, 105 selfloop transitions, 61 changer transitions 10/238 dead transitions. [2025-01-09 21:21:57,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 238 transitions, 1692 flow [2025-01-09 21:21:57,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:21:57,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:21:57,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 459 transitions. [2025-01-09 21:21:57,586 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8138297872340425 [2025-01-09 21:21:57,586 INFO L175 Difference]: Start difference. First operand has 121 places, 177 transitions, 994 flow. Second operand 6 states and 459 transitions. [2025-01-09 21:21:57,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 238 transitions, 1692 flow [2025-01-09 21:21:57,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 238 transitions, 1628 flow, removed 32 selfloop flow, removed 0 redundant places. [2025-01-09 21:21:57,597 INFO L231 Difference]: Finished difference. Result has 131 places, 224 transitions, 1516 flow [2025-01-09 21:21:57,598 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1516, PETRI_PLACES=131, PETRI_TRANSITIONS=224} [2025-01-09 21:21:57,598 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 39 predicate places. [2025-01-09 21:21:57,598 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 224 transitions, 1516 flow [2025-01-09 21:21:57,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.5) internal successors, (399), 6 states have internal predecessors, (399), 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 21:21:57,599 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:21:57,599 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] [2025-01-09 21:21:57,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 21:21:57,599 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:21:57,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:21:57,600 INFO L85 PathProgramCache]: Analyzing trace with hash -121785405, now seen corresponding path program 1 times [2025-01-09 21:21:57,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:21:57,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519359415] [2025-01-09 21:21:57,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:21:57,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:21:57,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-01-09 21:21:57,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 21:21:57,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:21:57,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:21:57,951 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 21:21:57,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:21:57,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519359415] [2025-01-09 21:21:57,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519359415] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:21:57,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:21:57,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:21:57,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900250623] [2025-01-09 21:21:57,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:21:57,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:21:57,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:21:57,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:21:57,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:21:58,435 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-01-09 21:21:58,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 224 transitions, 1516 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:21:58,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:21:58,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-01-09 21:21:58,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:21:59,134 INFO L124 PetriNetUnfolderBase]: 799/2301 cut-off events. [2025-01-09 21:21:59,134 INFO L125 PetriNetUnfolderBase]: For 4918/5024 co-relation queries the response was YES. [2025-01-09 21:21:59,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7874 conditions, 2301 events. 799/2301 cut-off events. For 4918/5024 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 16801 event pairs, 66 based on Foata normal form. 38/2326 useless extension candidates. Maximal degree in co-relation 7818. Up to 587 conditions per place. [2025-01-09 21:21:59,146 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 288 selfloop transitions, 75 changer transitions 29/474 dead transitions. [2025-01-09 21:21:59,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 474 transitions, 4184 flow [2025-01-09 21:21:59,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-09 21:21:59,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-09 21:21:59,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1060 transitions. [2025-01-09 21:21:59,149 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.75177304964539 [2025-01-09 21:21:59,149 INFO L175 Difference]: Start difference. First operand has 131 places, 224 transitions, 1516 flow. Second operand 15 states and 1060 transitions. [2025-01-09 21:21:59,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 474 transitions, 4184 flow [2025-01-09 21:21:59,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 474 transitions, 4066 flow, removed 59 selfloop flow, removed 0 redundant places. [2025-01-09 21:21:59,176 INFO L231 Difference]: Finished difference. Result has 157 places, 284 transitions, 2335 flow [2025-01-09 21:21:59,176 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=1448, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2335, PETRI_PLACES=157, PETRI_TRANSITIONS=284} [2025-01-09 21:21:59,177 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 65 predicate places. [2025-01-09 21:21:59,177 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 284 transitions, 2335 flow [2025-01-09 21:21:59,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:21:59,177 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:21:59,178 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] [2025-01-09 21:21:59,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 21:21:59,178 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:21:59,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:21:59,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1013121371, now seen corresponding path program 2 times [2025-01-09 21:21:59,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:21:59,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886909987] [2025-01-09 21:21:59,179 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:21:59,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:21:59,188 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-01-09 21:21:59,193 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 21:21:59,193 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:21:59,193 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:21:59,572 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 21:21:59,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:21:59,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886909987] [2025-01-09 21:21:59,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886909987] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:21:59,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:21:59,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:21:59,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206861751] [2025-01-09 21:21:59,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:21:59,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:21:59,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:21:59,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:21:59,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:21:59,959 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-01-09 21:21:59,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 284 transitions, 2335 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:21:59,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:21:59,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-01-09 21:21:59,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:00,779 INFO L124 PetriNetUnfolderBase]: 1226/3469 cut-off events. [2025-01-09 21:22:00,779 INFO L125 PetriNetUnfolderBase]: For 11776/12020 co-relation queries the response was YES. [2025-01-09 21:22:00,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13335 conditions, 3469 events. 1226/3469 cut-off events. For 11776/12020 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 28071 event pairs, 103 based on Foata normal form. 83/3531 useless extension candidates. Maximal degree in co-relation 13264. Up to 931 conditions per place. [2025-01-09 21:22:00,802 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 296 selfloop transitions, 117 changer transitions 31/526 dead transitions. [2025-01-09 21:22:00,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 526 transitions, 5373 flow [2025-01-09 21:22:00,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-09 21:22:00,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-01-09 21:22:00,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1010 transitions. [2025-01-09 21:22:00,804 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7674772036474165 [2025-01-09 21:22:00,804 INFO L175 Difference]: Start difference. First operand has 157 places, 284 transitions, 2335 flow. Second operand 14 states and 1010 transitions. [2025-01-09 21:22:00,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 526 transitions, 5373 flow [2025-01-09 21:22:00,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 526 transitions, 5311 flow, removed 24 selfloop flow, removed 4 redundant places. [2025-01-09 21:22:00,849 INFO L231 Difference]: Finished difference. Result has 175 places, 356 transitions, 3732 flow [2025-01-09 21:22:00,849 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=2309, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=3732, PETRI_PLACES=175, PETRI_TRANSITIONS=356} [2025-01-09 21:22:00,849 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 83 predicate places. [2025-01-09 21:22:00,850 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 356 transitions, 3732 flow [2025-01-09 21:22:00,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:22:00,850 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:00,850 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] [2025-01-09 21:22:00,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 21:22:00,851 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:00,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:00,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1422582121, now seen corresponding path program 3 times [2025-01-09 21:22:00,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:00,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156381793] [2025-01-09 21:22:00,851 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 21:22:00,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:00,860 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 59 statements into 1 equivalence classes. [2025-01-09 21:22:00,863 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 21:22:00,864 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-09 21:22:00,864 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:01,216 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 21:22:01,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:01,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156381793] [2025-01-09 21:22:01,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156381793] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:01,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:01,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:22:01,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636422369] [2025-01-09 21:22:01,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:01,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:22:01,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:01,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:22:01,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:22:01,559 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-01-09 21:22:01,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 356 transitions, 3732 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:22:01,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:01,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-01-09 21:22:01,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:02,248 INFO L124 PetriNetUnfolderBase]: 1248/3486 cut-off events. [2025-01-09 21:22:02,249 INFO L125 PetriNetUnfolderBase]: For 17161/17542 co-relation queries the response was YES. [2025-01-09 21:22:02,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14744 conditions, 3486 events. 1248/3486 cut-off events. For 17161/17542 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 28180 event pairs, 78 based on Foata normal form. 128/3582 useless extension candidates. Maximal degree in co-relation 14665. Up to 1525 conditions per place. [2025-01-09 21:22:02,273 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 183 selfloop transitions, 158 changer transitions 29/452 dead transitions. [2025-01-09 21:22:02,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 452 transitions, 5407 flow [2025-01-09 21:22:02,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-09 21:22:02,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-01-09 21:22:02,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 852 transitions. [2025-01-09 21:22:02,276 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7553191489361702 [2025-01-09 21:22:02,276 INFO L175 Difference]: Start difference. First operand has 175 places, 356 transitions, 3732 flow. Second operand 12 states and 852 transitions. [2025-01-09 21:22:02,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 452 transitions, 5407 flow [2025-01-09 21:22:02,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 452 transitions, 5324 flow, removed 18 selfloop flow, removed 6 redundant places. [2025-01-09 21:22:02,332 INFO L231 Difference]: Finished difference. Result has 184 places, 379 transitions, 4663 flow [2025-01-09 21:22:02,332 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=3681, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4663, PETRI_PLACES=184, PETRI_TRANSITIONS=379} [2025-01-09 21:22:02,333 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 92 predicate places. [2025-01-09 21:22:02,333 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 379 transitions, 4663 flow [2025-01-09 21:22:02,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:22:02,334 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:02,334 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] [2025-01-09 21:22:02,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 21:22:02,334 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:02,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:02,336 INFO L85 PathProgramCache]: Analyzing trace with hash -746214381, now seen corresponding path program 4 times [2025-01-09 21:22:02,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:02,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441890286] [2025-01-09 21:22:02,336 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-09 21:22:02,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:02,349 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 59 statements into 2 equivalence classes. [2025-01-09 21:22:02,353 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 53 of 59 statements. [2025-01-09 21:22:02,353 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-09 21:22:02,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:02,606 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 21:22:02,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:02,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441890286] [2025-01-09 21:22:02,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441890286] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:02,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:02,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:22:02,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682327284] [2025-01-09 21:22:02,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:02,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:22:02,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:02,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:22:02,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:22:03,094 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-01-09 21:22:03,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 379 transitions, 4663 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:22:03,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:03,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-01-09 21:22:03,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:04,319 INFO L124 PetriNetUnfolderBase]: 1570/4367 cut-off events. [2025-01-09 21:22:04,320 INFO L125 PetriNetUnfolderBase]: For 27047/27501 co-relation queries the response was YES. [2025-01-09 21:22:04,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19506 conditions, 4367 events. 1570/4367 cut-off events. For 27047/27501 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 37130 event pairs, 137 based on Foata normal form. 155/4489 useless extension candidates. Maximal degree in co-relation 19425. Up to 812 conditions per place. [2025-01-09 21:22:04,348 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 527 selfloop transitions, 150 changer transitions 17/776 dead transitions. [2025-01-09 21:22:04,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 776 transitions, 10055 flow [2025-01-09 21:22:04,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-09 21:22:04,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-01-09 21:22:04,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1157 transitions. [2025-01-09 21:22:04,350 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.769281914893617 [2025-01-09 21:22:04,350 INFO L175 Difference]: Start difference. First operand has 184 places, 379 transitions, 4663 flow. Second operand 16 states and 1157 transitions. [2025-01-09 21:22:04,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 776 transitions, 10055 flow [2025-01-09 21:22:04,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 776 transitions, 9889 flow, removed 10 selfloop flow, removed 7 redundant places. [2025-01-09 21:22:04,423 INFO L231 Difference]: Finished difference. Result has 202 places, 440 transitions, 6151 flow [2025-01-09 21:22:04,424 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=4557, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=379, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=6151, PETRI_PLACES=202, PETRI_TRANSITIONS=440} [2025-01-09 21:22:04,424 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 110 predicate places. [2025-01-09 21:22:04,424 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 440 transitions, 6151 flow [2025-01-09 21:22:04,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:22:04,425 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:04,425 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] [2025-01-09 21:22:04,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 21:22:04,425 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:04,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:04,425 INFO L85 PathProgramCache]: Analyzing trace with hash -190314597, now seen corresponding path program 5 times [2025-01-09 21:22:04,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:04,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751915232] [2025-01-09 21:22:04,426 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-09 21:22:04,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:04,435 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-01-09 21:22:04,438 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 21:22:04,438 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:22:04,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:04,840 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 21:22:04,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:04,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751915232] [2025-01-09 21:22:04,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751915232] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:04,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:04,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:22:04,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828557958] [2025-01-09 21:22:04,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:04,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:22:04,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:04,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:22:04,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:22:05,439 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-01-09 21:22:05,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 440 transitions, 6151 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:22:05,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:05,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-01-09 21:22:05,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:06,607 INFO L124 PetriNetUnfolderBase]: 2099/5778 cut-off events. [2025-01-09 21:22:06,607 INFO L125 PetriNetUnfolderBase]: For 47576/48319 co-relation queries the response was YES. [2025-01-09 21:22:06,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27414 conditions, 5778 events. 2099/5778 cut-off events. For 47576/48319 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 52069 event pairs, 153 based on Foata normal form. 176/5910 useless extension candidates. Maximal degree in co-relation 27323. Up to 2201 conditions per place. [2025-01-09 21:22:06,641 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 426 selfloop transitions, 221 changer transitions 21/750 dead transitions. [2025-01-09 21:22:06,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 750 transitions, 11340 flow [2025-01-09 21:22:06,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-09 21:22:06,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-01-09 21:22:06,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1007 transitions. [2025-01-09 21:22:06,644 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7651975683890577 [2025-01-09 21:22:06,644 INFO L175 Difference]: Start difference. First operand has 202 places, 440 transitions, 6151 flow. Second operand 14 states and 1007 transitions. [2025-01-09 21:22:06,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 750 transitions, 11340 flow [2025-01-09 21:22:06,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 750 transitions, 10974 flow, removed 81 selfloop flow, removed 7 redundant places. [2025-01-09 21:22:06,790 INFO L231 Difference]: Finished difference. Result has 217 places, 543 transitions, 8635 flow [2025-01-09 21:22:06,790 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=5923, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=8635, PETRI_PLACES=217, PETRI_TRANSITIONS=543} [2025-01-09 21:22:06,791 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 125 predicate places. [2025-01-09 21:22:06,791 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 543 transitions, 8635 flow [2025-01-09 21:22:06,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:22:06,791 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:06,791 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] [2025-01-09 21:22:06,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 21:22:06,791 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:06,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:06,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1542519371, now seen corresponding path program 1 times [2025-01-09 21:22:06,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:06,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703985309] [2025-01-09 21:22:06,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:06,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:06,800 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-01-09 21:22:06,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 21:22:06,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:06,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:07,042 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 21:22:07,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:07,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703985309] [2025-01-09 21:22:07,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703985309] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:07,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:07,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:22:07,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853603090] [2025-01-09 21:22:07,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:07,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:22:07,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:07,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:22:07,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:22:07,373 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-01-09 21:22:07,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 543 transitions, 8635 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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 21:22:07,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:07,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-01-09 21:22:07,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:08,860 INFO L124 PetriNetUnfolderBase]: 2618/6770 cut-off events. [2025-01-09 21:22:08,860 INFO L125 PetriNetUnfolderBase]: For 62106/62539 co-relation queries the response was YES. [2025-01-09 21:22:08,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34060 conditions, 6770 events. 2618/6770 cut-off events. For 62106/62539 co-relation queries the response was YES. Maximal size of possible extension queue 324. Compared 60046 event pairs, 434 based on Foata normal form. 71/6787 useless extension candidates. Maximal degree in co-relation 33961. Up to 2208 conditions per place. [2025-01-09 21:22:08,908 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 610 selfloop transitions, 150 changer transitions 68/901 dead transitions. [2025-01-09 21:22:08,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 901 transitions, 13782 flow [2025-01-09 21:22:08,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-09 21:22:08,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-01-09 21:22:08,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 995 transitions. [2025-01-09 21:22:08,911 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.756079027355623 [2025-01-09 21:22:08,911 INFO L175 Difference]: Start difference. First operand has 217 places, 543 transitions, 8635 flow. Second operand 14 states and 995 transitions. [2025-01-09 21:22:08,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 901 transitions, 13782 flow [2025-01-09 21:22:09,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 901 transitions, 13437 flow, removed 93 selfloop flow, removed 5 redundant places. [2025-01-09 21:22:09,148 INFO L231 Difference]: Finished difference. Result has 233 places, 614 transitions, 9881 flow [2025-01-09 21:22:09,149 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=8365, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=9881, PETRI_PLACES=233, PETRI_TRANSITIONS=614} [2025-01-09 21:22:09,149 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 141 predicate places. [2025-01-09 21:22:09,149 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 614 transitions, 9881 flow [2025-01-09 21:22:09,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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 21:22:09,149 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:09,150 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] [2025-01-09 21:22:09,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 21:22:09,150 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:09,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:09,150 INFO L85 PathProgramCache]: Analyzing trace with hash -339106291, now seen corresponding path program 6 times [2025-01-09 21:22:09,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:09,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741935814] [2025-01-09 21:22:09,151 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-09 21:22:09,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:09,156 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 59 statements into 1 equivalence classes. [2025-01-09 21:22:09,159 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 21:22:09,159 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-01-09 21:22:09,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:09,432 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 21:22:09,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:09,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741935814] [2025-01-09 21:22:09,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741935814] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:09,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:09,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:22:09,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473765069] [2025-01-09 21:22:09,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:09,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:22:09,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:09,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:22:09,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:22:09,842 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-01-09 21:22:09,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 614 transitions, 9881 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:22:09,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:09,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-01-09 21:22:09,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:11,279 INFO L124 PetriNetUnfolderBase]: 2379/6638 cut-off events. [2025-01-09 21:22:11,279 INFO L125 PetriNetUnfolderBase]: For 66231/67082 co-relation queries the response was YES. [2025-01-09 21:22:11,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34152 conditions, 6638 events. 2379/6638 cut-off events. For 66231/67082 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 62069 event pairs, 258 based on Foata normal form. 203/6801 useless extension candidates. Maximal degree in co-relation 34046. Up to 1769 conditions per place. [2025-01-09 21:22:11,329 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 579 selfloop transitions, 231 changer transitions 19/917 dead transitions. [2025-01-09 21:22:11,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 917 transitions, 14931 flow [2025-01-09 21:22:11,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-09 21:22:11,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-09 21:22:11,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1074 transitions. [2025-01-09 21:22:11,332 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7617021276595745 [2025-01-09 21:22:11,332 INFO L175 Difference]: Start difference. First operand has 233 places, 614 transitions, 9881 flow. Second operand 15 states and 1074 transitions. [2025-01-09 21:22:11,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 917 transitions, 14931 flow [2025-01-09 21:22:11,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 917 transitions, 14807 flow, removed 55 selfloop flow, removed 3 redundant places. [2025-01-09 21:22:11,689 INFO L231 Difference]: Finished difference. Result has 254 places, 675 transitions, 11914 flow [2025-01-09 21:22:11,689 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=9783, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=614, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=11914, PETRI_PLACES=254, PETRI_TRANSITIONS=675} [2025-01-09 21:22:11,690 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 162 predicate places. [2025-01-09 21:22:11,690 INFO L471 AbstractCegarLoop]: Abstraction has has 254 places, 675 transitions, 11914 flow [2025-01-09 21:22:11,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:22:11,691 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:11,691 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] [2025-01-09 21:22:11,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-09 21:22:11,691 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:11,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:11,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1534148209, now seen corresponding path program 7 times [2025-01-09 21:22:11,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:11,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648942158] [2025-01-09 21:22:11,692 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-09 21:22:11,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:11,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-01-09 21:22:11,702 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 21:22:11,702 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:11,702 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:11,978 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 21:22:11,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:11,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648942158] [2025-01-09 21:22:11,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648942158] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:11,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:11,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:22:11,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422744218] [2025-01-09 21:22:11,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:11,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:22:11,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:11,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:22:11,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:22:12,427 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-01-09 21:22:12,428 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 675 transitions, 11914 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:22:12,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:12,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-01-09 21:22:12,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:13,978 INFO L124 PetriNetUnfolderBase]: 2422/6709 cut-off events. [2025-01-09 21:22:13,979 INFO L125 PetriNetUnfolderBase]: For 84327/85421 co-relation queries the response was YES. [2025-01-09 21:22:14,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36397 conditions, 6709 events. 2422/6709 cut-off events. For 84327/85421 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 62627 event pairs, 263 based on Foata normal form. 239/6909 useless extension candidates. Maximal degree in co-relation 36280. Up to 2017 conditions per place. [2025-01-09 21:22:14,037 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 616 selfloop transitions, 225 changer transitions 18/947 dead transitions. [2025-01-09 21:22:14,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 947 transitions, 16614 flow [2025-01-09 21:22:14,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-09 21:22:14,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-09 21:22:14,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1078 transitions. [2025-01-09 21:22:14,039 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7645390070921986 [2025-01-09 21:22:14,039 INFO L175 Difference]: Start difference. First operand has 254 places, 675 transitions, 11914 flow. Second operand 15 states and 1078 transitions. [2025-01-09 21:22:14,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 947 transitions, 16614 flow [2025-01-09 21:22:14,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 947 transitions, 16252 flow, removed 133 selfloop flow, removed 5 redundant places. [2025-01-09 21:22:14,536 INFO L231 Difference]: Finished difference. Result has 271 places, 701 transitions, 12705 flow [2025-01-09 21:22:14,537 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=11583, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=675, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=199, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=12705, PETRI_PLACES=271, PETRI_TRANSITIONS=701} [2025-01-09 21:22:14,537 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 179 predicate places. [2025-01-09 21:22:14,538 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 701 transitions, 12705 flow [2025-01-09 21:22:14,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:22:14,538 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:14,538 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] [2025-01-09 21:22:14,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-09 21:22:14,538 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:14,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:14,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1310405227, now seen corresponding path program 2 times [2025-01-09 21:22:14,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:14,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979802246] [2025-01-09 21:22:14,539 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:22:14,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:14,544 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-01-09 21:22:14,547 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 21:22:14,547 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:22:14,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:14,739 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 21:22:14,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:14,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979802246] [2025-01-09 21:22:14,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979802246] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:14,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:14,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:22:14,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134729970] [2025-01-09 21:22:14,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:14,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:22:14,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:14,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:22:14,741 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:22:15,024 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-01-09 21:22:15,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 701 transitions, 12705 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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 21:22:15,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:15,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-01-09 21:22:15,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:17,180 INFO L124 PetriNetUnfolderBase]: 3090/8007 cut-off events. [2025-01-09 21:22:17,181 INFO L125 PetriNetUnfolderBase]: For 101100/101618 co-relation queries the response was YES. [2025-01-09 21:22:17,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44802 conditions, 8007 events. 3090/8007 cut-off events. For 101100/101618 co-relation queries the response was YES. Maximal size of possible extension queue 389. Compared 73558 event pairs, 555 based on Foata normal form. 106/8050 useless extension candidates. Maximal degree in co-relation 44679. Up to 2897 conditions per place. [2025-01-09 21:22:17,249 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 687 selfloop transitions, 186 changer transitions 53/1003 dead transitions. [2025-01-09 21:22:17,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 1003 transitions, 17473 flow [2025-01-09 21:22:17,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-09 21:22:17,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-09 21:22:17,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1052 transitions. [2025-01-09 21:22:17,251 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7460992907801418 [2025-01-09 21:22:17,251 INFO L175 Difference]: Start difference. First operand has 271 places, 701 transitions, 12705 flow. Second operand 15 states and 1052 transitions. [2025-01-09 21:22:17,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 1003 transitions, 17473 flow [2025-01-09 21:22:17,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 1003 transitions, 16859 flow, removed 97 selfloop flow, removed 11 redundant places. [2025-01-09 21:22:17,816 INFO L231 Difference]: Finished difference. Result has 280 places, 720 transitions, 13017 flow [2025-01-09 21:22:17,816 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=12140, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=701, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=167, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=517, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=13017, PETRI_PLACES=280, PETRI_TRANSITIONS=720} [2025-01-09 21:22:17,817 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 188 predicate places. [2025-01-09 21:22:17,817 INFO L471 AbstractCegarLoop]: Abstraction has has 280 places, 720 transitions, 13017 flow [2025-01-09 21:22:17,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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 21:22:17,817 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:17,817 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] [2025-01-09 21:22:17,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-09 21:22:17,817 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:17,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:17,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1108754079, now seen corresponding path program 3 times [2025-01-09 21:22:17,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:17,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653207086] [2025-01-09 21:22:17,818 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 21:22:17,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:17,824 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 59 statements into 1 equivalence classes. [2025-01-09 21:22:17,827 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 21:22:17,827 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-09 21:22:17,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:18,074 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 21:22:18,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:18,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653207086] [2025-01-09 21:22:18,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653207086] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:18,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:18,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:22:18,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970014006] [2025-01-09 21:22:18,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:18,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:22:18,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:18,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:22:18,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:22:18,405 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-01-09 21:22:18,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 720 transitions, 13017 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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 21:22:18,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:18,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-01-09 21:22:18,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:20,578 INFO L124 PetriNetUnfolderBase]: 3148/8156 cut-off events. [2025-01-09 21:22:20,578 INFO L125 PetriNetUnfolderBase]: For 102427/102929 co-relation queries the response was YES. [2025-01-09 21:22:20,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46963 conditions, 8156 events. 3148/8156 cut-off events. For 102427/102929 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 75156 event pairs, 483 based on Foata normal form. 102/8200 useless extension candidates. Maximal degree in co-relation 46837. Up to 2896 conditions per place. [2025-01-09 21:22:20,657 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 928 selfloop transitions, 137 changer transitions 41/1183 dead transitions. [2025-01-09 21:22:20,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 1183 transitions, 20257 flow [2025-01-09 21:22:20,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-09 21:22:20,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-09 21:22:20,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1059 transitions. [2025-01-09 21:22:20,659 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7510638297872341 [2025-01-09 21:22:20,659 INFO L175 Difference]: Start difference. First operand has 280 places, 720 transitions, 13017 flow. Second operand 15 states and 1059 transitions. [2025-01-09 21:22:20,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 1183 transitions, 20257 flow [2025-01-09 21:22:21,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 1183 transitions, 19979 flow, removed 23 selfloop flow, removed 10 redundant places. [2025-01-09 21:22:21,205 INFO L231 Difference]: Finished difference. Result has 292 places, 779 transitions, 14269 flow [2025-01-09 21:22:21,206 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=12803, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=720, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=588, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=14269, PETRI_PLACES=292, PETRI_TRANSITIONS=779} [2025-01-09 21:22:21,206 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 200 predicate places. [2025-01-09 21:22:21,207 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 779 transitions, 14269 flow [2025-01-09 21:22:21,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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 21:22:21,207 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:21,207 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] [2025-01-09 21:22:21,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-09 21:22:21,207 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:21,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:21,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1662952885, now seen corresponding path program 4 times [2025-01-09 21:22:21,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:21,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433580529] [2025-01-09 21:22:21,208 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-09 21:22:21,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:21,213 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 59 statements into 2 equivalence classes. [2025-01-09 21:22:21,215 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 53 of 59 statements. [2025-01-09 21:22:21,215 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-09 21:22:21,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:21,388 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 21:22:21,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:21,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433580529] [2025-01-09 21:22:21,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433580529] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:21,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:21,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:22:21,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098056896] [2025-01-09 21:22:21,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:21,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:22:21,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:21,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:22:21,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:22:21,752 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-01-09 21:22:21,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 779 transitions, 14269 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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 21:22:21,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:21,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-01-09 21:22:21,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:24,273 INFO L124 PetriNetUnfolderBase]: 3204/8341 cut-off events. [2025-01-09 21:22:24,274 INFO L125 PetriNetUnfolderBase]: For 112272/112776 co-relation queries the response was YES. [2025-01-09 21:22:24,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49536 conditions, 8341 events. 3204/8341 cut-off events. For 112272/112776 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 77395 event pairs, 552 based on Foata normal form. 111/8390 useless extension candidates. Maximal degree in co-relation 49403. Up to 2899 conditions per place. [2025-01-09 21:22:24,332 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 768 selfloop transitions, 230 changer transitions 38/1113 dead transitions. [2025-01-09 21:22:24,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 1113 transitions, 20011 flow [2025-01-09 21:22:24,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-09 21:22:24,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-09 21:22:24,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1054 transitions. [2025-01-09 21:22:24,334 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7475177304964539 [2025-01-09 21:22:24,334 INFO L175 Difference]: Start difference. First operand has 292 places, 779 transitions, 14269 flow. Second operand 15 states and 1054 transitions. [2025-01-09 21:22:24,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 1113 transitions, 20011 flow [2025-01-09 21:22:25,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 1113 transitions, 19760 flow, removed 58 selfloop flow, removed 9 redundant places. [2025-01-09 21:22:25,023 INFO L231 Difference]: Finished difference. Result has 304 places, 818 transitions, 15598 flow [2025-01-09 21:22:25,024 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=14079, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=779, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=558, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=15598, PETRI_PLACES=304, PETRI_TRANSITIONS=818} [2025-01-09 21:22:25,024 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 212 predicate places. [2025-01-09 21:22:25,024 INFO L471 AbstractCegarLoop]: Abstraction has has 304 places, 818 transitions, 15598 flow [2025-01-09 21:22:25,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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 21:22:25,025 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:25,025 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] [2025-01-09 21:22:25,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-09 21:22:25,025 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:25,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:25,025 INFO L85 PathProgramCache]: Analyzing trace with hash -295726675, now seen corresponding path program 1 times [2025-01-09 21:22:25,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:25,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412079488] [2025-01-09 21:22:25,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:25,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:25,031 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-01-09 21:22:25,033 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 21:22:25,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:25,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:25,242 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 21:22:25,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:25,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412079488] [2025-01-09 21:22:25,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412079488] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:25,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:25,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:22:25,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524115004] [2025-01-09 21:22:25,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:25,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:22:25,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:25,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:22:25,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:22:25,630 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-01-09 21:22:25,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 818 transitions, 15598 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:22:25,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:25,631 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-01-09 21:22:25,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:28,086 INFO L124 PetriNetUnfolderBase]: 2720/7552 cut-off events. [2025-01-09 21:22:28,087 INFO L125 PetriNetUnfolderBase]: For 114659/115589 co-relation queries the response was YES. [2025-01-09 21:22:28,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44743 conditions, 7552 events. 2720/7552 cut-off events. For 114659/115589 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 71959 event pairs, 264 based on Foata normal form. 173/7677 useless extension candidates. Maximal degree in co-relation 44605. Up to 1988 conditions per place. [2025-01-09 21:22:28,171 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 669 selfloop transitions, 186 changer transitions 25/1161 dead transitions. [2025-01-09 21:22:28,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 1161 transitions, 21156 flow [2025-01-09 21:22:28,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-09 21:22:28,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-09 21:22:28,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1099 transitions. [2025-01-09 21:22:28,173 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7794326241134751 [2025-01-09 21:22:28,173 INFO L175 Difference]: Start difference. First operand has 304 places, 818 transitions, 15598 flow. Second operand 15 states and 1099 transitions. [2025-01-09 21:22:28,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 1161 transitions, 21156 flow [2025-01-09 21:22:28,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 1161 transitions, 20800 flow, removed 60 selfloop flow, removed 10 redundant places. [2025-01-09 21:22:28,944 INFO L231 Difference]: Finished difference. Result has 317 places, 926 transitions, 17720 flow [2025-01-09 21:22:28,945 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=15264, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=818, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=676, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=17720, PETRI_PLACES=317, PETRI_TRANSITIONS=926} [2025-01-09 21:22:28,945 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 225 predicate places. [2025-01-09 21:22:28,945 INFO L471 AbstractCegarLoop]: Abstraction has has 317 places, 926 transitions, 17720 flow [2025-01-09 21:22:28,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:22:28,945 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:28,946 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] [2025-01-09 21:22:28,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-01-09 21:22:28,946 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:28,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:28,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1742526705, now seen corresponding path program 5 times [2025-01-09 21:22:28,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:28,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637168779] [2025-01-09 21:22:28,947 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-09 21:22:28,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:28,953 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-01-09 21:22:28,956 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 21:22:28,957 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:22:28,957 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:29,170 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 21:22:29,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:29,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637168779] [2025-01-09 21:22:29,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637168779] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:29,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:29,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:22:29,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160634717] [2025-01-09 21:22:29,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:29,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:22:29,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:29,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:22:29,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:22:29,466 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-01-09 21:22:29,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 926 transitions, 17720 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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 21:22:29,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:29,467 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-01-09 21:22:29,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:32,140 INFO L124 PetriNetUnfolderBase]: 3347/8760 cut-off events. [2025-01-09 21:22:32,140 INFO L125 PetriNetUnfolderBase]: For 130160/130720 co-relation queries the response was YES. [2025-01-09 21:22:32,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53891 conditions, 8760 events. 3347/8760 cut-off events. For 130160/130720 co-relation queries the response was YES. Maximal size of possible extension queue 428. Compared 82351 event pairs, 602 based on Foata normal form. 123/8815 useless extension candidates. Maximal degree in co-relation 53746. Up to 2904 conditions per place. [2025-01-09 21:22:32,263 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 868 selfloop transitions, 260 changer transitions 36/1241 dead transitions. [2025-01-09 21:22:32,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 1241 transitions, 23783 flow [2025-01-09 21:22:32,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-09 21:22:32,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-09 21:22:32,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1054 transitions. [2025-01-09 21:22:32,265 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7475177304964539 [2025-01-09 21:22:32,265 INFO L175 Difference]: Start difference. First operand has 317 places, 926 transitions, 17720 flow. Second operand 15 states and 1054 transitions. [2025-01-09 21:22:32,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 1241 transitions, 23783 flow [2025-01-09 21:22:33,336 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 1241 transitions, 23680 flow, removed 45 selfloop flow, removed 3 redundant places. [2025-01-09 21:22:33,354 INFO L231 Difference]: Finished difference. Result has 335 places, 968 transitions, 19219 flow [2025-01-09 21:22:33,355 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=17619, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=926, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=218, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=670, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=19219, PETRI_PLACES=335, PETRI_TRANSITIONS=968} [2025-01-09 21:22:33,356 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 243 predicate places. [2025-01-09 21:22:33,356 INFO L471 AbstractCegarLoop]: Abstraction has has 335 places, 968 transitions, 19219 flow [2025-01-09 21:22:33,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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 21:22:33,356 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:33,356 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] [2025-01-09 21:22:33,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-01-09 21:22:33,356 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:33,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:33,357 INFO L85 PathProgramCache]: Analyzing trace with hash 658878385, now seen corresponding path program 2 times [2025-01-09 21:22:33,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:33,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879829990] [2025-01-09 21:22:33,357 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:22:33,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:33,364 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-01-09 21:22:33,367 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 21:22:33,367 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:22:33,367 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:33,637 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 21:22:33,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:33,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879829990] [2025-01-09 21:22:33,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879829990] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:33,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:33,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:22:33,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990215643] [2025-01-09 21:22:33,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:33,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:22:33,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:33,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:22:33,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:22:34,048 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-01-09 21:22:34,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 968 transitions, 19219 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:22:34,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:34,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-01-09 21:22:34,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:36,219 INFO L124 PetriNetUnfolderBase]: 2702/7568 cut-off events. [2025-01-09 21:22:36,219 INFO L125 PetriNetUnfolderBase]: For 133571/134531 co-relation queries the response was YES. [2025-01-09 21:22:36,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47486 conditions, 7568 events. 2702/7568 cut-off events. For 133571/134531 co-relation queries the response was YES. Maximal size of possible extension queue 416. Compared 72501 event pairs, 246 based on Foata normal form. 180/7704 useless extension candidates. Maximal degree in co-relation 47334. Up to 1992 conditions per place. [2025-01-09 21:22:36,302 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 763 selfloop transitions, 185 changer transitions 24/1259 dead transitions. [2025-01-09 21:22:36,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 349 places, 1259 transitions, 24163 flow [2025-01-09 21:22:36,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-09 21:22:36,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-09 21:22:36,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1099 transitions. [2025-01-09 21:22:36,303 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7794326241134751 [2025-01-09 21:22:36,303 INFO L175 Difference]: Start difference. First operand has 335 places, 968 transitions, 19219 flow. Second operand 15 states and 1099 transitions. [2025-01-09 21:22:36,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 349 places, 1259 transitions, 24163 flow [2025-01-09 21:22:37,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 1259 transitions, 23869 flow, removed 79 selfloop flow, removed 8 redundant places. [2025-01-09 21:22:37,225 INFO L231 Difference]: Finished difference. Result has 349 places, 1000 transitions, 19975 flow [2025-01-09 21:22:37,225 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=18934, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=968, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=152, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=785, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=19975, PETRI_PLACES=349, PETRI_TRANSITIONS=1000} [2025-01-09 21:22:37,226 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 257 predicate places. [2025-01-09 21:22:37,226 INFO L471 AbstractCegarLoop]: Abstraction has has 349 places, 1000 transitions, 19975 flow [2025-01-09 21:22:37,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:22:37,226 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:37,226 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] [2025-01-09 21:22:37,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-01-09 21:22:37,227 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:37,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:37,227 INFO L85 PathProgramCache]: Analyzing trace with hash 425477271, now seen corresponding path program 1 times [2025-01-09 21:22:37,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:37,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672918729] [2025-01-09 21:22:37,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:22:37,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:37,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-01-09 21:22:37,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 21:22:37,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:22:37,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:37,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:22:37,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:37,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672918729] [2025-01-09 21:22:37,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672918729] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:37,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:37,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:22:37,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326601544] [2025-01-09 21:22:37,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:37,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:22:37,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:37,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:22:37,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:22:37,749 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-01-09 21:22:37,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 1000 transitions, 19975 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:22:37,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:37,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-01-09 21:22:37,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:40,267 INFO L124 PetriNetUnfolderBase]: 3279/8595 cut-off events. [2025-01-09 21:22:40,267 INFO L125 PetriNetUnfolderBase]: For 151899/152522 co-relation queries the response was YES. [2025-01-09 21:22:40,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56210 conditions, 8595 events. 3279/8595 cut-off events. For 151899/152522 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 80528 event pairs, 575 based on Foata normal form. 93/8630 useless extension candidates. Maximal degree in co-relation 56051. Up to 2975 conditions per place. [2025-01-09 21:22:40,383 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 1070 selfloop transitions, 162 changer transitions 69/1383 dead transitions. [2025-01-09 21:22:40,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 1383 transitions, 27350 flow [2025-01-09 21:22:40,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-09 21:22:40,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2025-01-09 21:22:40,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1119 transitions. [2025-01-09 21:22:40,384 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7440159574468085 [2025-01-09 21:22:40,384 INFO L175 Difference]: Start difference. First operand has 349 places, 1000 transitions, 19975 flow. Second operand 16 states and 1119 transitions. [2025-01-09 21:22:40,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 1383 transitions, 27350 flow [2025-01-09 21:22:41,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 1383 transitions, 27013 flow, removed 65 selfloop flow, removed 8 redundant places. [2025-01-09 21:22:41,457 INFO L231 Difference]: Finished difference. Result has 364 places, 1054 transitions, 20880 flow [2025-01-09 21:22:41,457 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=19707, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1000, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=869, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=20880, PETRI_PLACES=364, PETRI_TRANSITIONS=1054} [2025-01-09 21:22:41,458 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 272 predicate places. [2025-01-09 21:22:41,458 INFO L471 AbstractCegarLoop]: Abstraction has has 364 places, 1054 transitions, 20880 flow [2025-01-09 21:22:41,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:22:41,458 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:41,458 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] [2025-01-09 21:22:41,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-01-09 21:22:41,458 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:41,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:41,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1656638187, now seen corresponding path program 3 times [2025-01-09 21:22:41,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:41,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316106913] [2025-01-09 21:22:41,459 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 21:22:41,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:41,464 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 59 statements into 1 equivalence classes. [2025-01-09 21:22:41,466 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 21:22:41,466 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-09 21:22:41,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:41,685 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 21:22:41,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:41,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316106913] [2025-01-09 21:22:41,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316106913] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:41,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:41,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:22:41,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309341872] [2025-01-09 21:22:41,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:41,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:22:41,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:41,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:22:41,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:22:42,005 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-01-09 21:22:42,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 1054 transitions, 20880 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:22:42,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:42,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-01-09 21:22:42,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:44,330 INFO L124 PetriNetUnfolderBase]: 2637/7470 cut-off events. [2025-01-09 21:22:44,330 INFO L125 PetriNetUnfolderBase]: For 145658/146629 co-relation queries the response was YES. [2025-01-09 21:22:44,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49511 conditions, 7470 events. 2637/7470 cut-off events. For 145658/146629 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 71698 event pairs, 267 based on Foata normal form. 220/7654 useless extension candidates. Maximal degree in co-relation 49345. Up to 1984 conditions per place. [2025-01-09 21:22:44,427 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 720 selfloop transitions, 216 changer transitions 28/1262 dead transitions. [2025-01-09 21:22:44,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 1262 transitions, 25568 flow [2025-01-09 21:22:44,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-09 21:22:44,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-01-09 21:22:44,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1027 transitions. [2025-01-09 21:22:44,428 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7803951367781155 [2025-01-09 21:22:44,428 INFO L175 Difference]: Start difference. First operand has 364 places, 1054 transitions, 20880 flow. Second operand 14 states and 1027 transitions. [2025-01-09 21:22:44,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 1262 transitions, 25568 flow [2025-01-09 21:22:45,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 1262 transitions, 25382 flow, removed 71 selfloop flow, removed 5 redundant places. [2025-01-09 21:22:45,559 INFO L231 Difference]: Finished difference. Result has 379 places, 1074 transitions, 22108 flow [2025-01-09 21:22:45,559 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=20694, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1054, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=847, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=22108, PETRI_PLACES=379, PETRI_TRANSITIONS=1074} [2025-01-09 21:22:45,560 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 287 predicate places. [2025-01-09 21:22:45,560 INFO L471 AbstractCegarLoop]: Abstraction has has 379 places, 1074 transitions, 22108 flow [2025-01-09 21:22:45,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:22:45,560 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:45,560 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] [2025-01-09 21:22:45,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-01-09 21:22:45,560 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:45,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:45,561 INFO L85 PathProgramCache]: Analyzing trace with hash 264199829, now seen corresponding path program 4 times [2025-01-09 21:22:45,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:45,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791112579] [2025-01-09 21:22:45,561 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-09 21:22:45,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:45,568 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 59 statements into 2 equivalence classes. [2025-01-09 21:22:45,573 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 53 of 59 statements. [2025-01-09 21:22:45,576 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-09 21:22:45,576 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:45,824 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 21:22:45,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:45,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791112579] [2025-01-09 21:22:45,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791112579] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:45,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:45,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:22:45,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033515440] [2025-01-09 21:22:45,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:45,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:22:45,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:45,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:22:45,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:22:46,143 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-01-09 21:22:46,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 1074 transitions, 22108 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:22:46,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:46,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-01-09 21:22:46,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:48,769 INFO L124 PetriNetUnfolderBase]: 2673/7597 cut-off events. [2025-01-09 21:22:48,769 INFO L125 PetriNetUnfolderBase]: For 163815/164854 co-relation queries the response was YES. [2025-01-09 21:22:48,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51620 conditions, 7597 events. 2673/7597 cut-off events. For 163815/164854 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 73408 event pairs, 266 based on Foata normal form. 226/7790 useless extension candidates. Maximal degree in co-relation 51449. Up to 1985 conditions per place. [2025-01-09 21:22:48,850 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 759 selfloop transitions, 243 changer transitions 21/1321 dead transitions. [2025-01-09 21:22:48,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 1321 transitions, 27686 flow [2025-01-09 21:22:48,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-09 21:22:48,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-09 21:22:48,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1097 transitions. [2025-01-09 21:22:48,851 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7780141843971631 [2025-01-09 21:22:48,851 INFO L175 Difference]: Start difference. First operand has 379 places, 1074 transitions, 22108 flow. Second operand 15 states and 1097 transitions. [2025-01-09 21:22:48,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 1321 transitions, 27686 flow [2025-01-09 21:22:50,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 386 places, 1321 transitions, 27508 flow, removed 7 selfloop flow, removed 7 redundant places. [2025-01-09 21:22:50,119 INFO L231 Difference]: Finished difference. Result has 392 places, 1113 transitions, 23817 flow [2025-01-09 21:22:50,120 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=21944, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1074, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=205, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=843, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=23817, PETRI_PLACES=392, PETRI_TRANSITIONS=1113} [2025-01-09 21:22:50,121 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 300 predicate places. [2025-01-09 21:22:50,121 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 1113 transitions, 23817 flow [2025-01-09 21:22:50,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:22:50,121 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:50,121 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] [2025-01-09 21:22:50,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-01-09 21:22:50,121 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:50,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:50,122 INFO L85 PathProgramCache]: Analyzing trace with hash 51531535, now seen corresponding path program 5 times [2025-01-09 21:22:50,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:50,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719238197] [2025-01-09 21:22:50,122 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-09 21:22:50,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:50,128 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-01-09 21:22:50,130 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 21:22:50,130 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:22:50,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:50,340 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 21:22:50,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:50,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719238197] [2025-01-09 21:22:50,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719238197] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:50,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:50,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:22:50,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474689052] [2025-01-09 21:22:50,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:50,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:22:50,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:50,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:22:50,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:22:50,710 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-01-09 21:22:50,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 1113 transitions, 23817 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:22:50,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:50,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-01-09 21:22:50,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:53,440 INFO L124 PetriNetUnfolderBase]: 2684/7643 cut-off events. [2025-01-09 21:22:53,440 INFO L125 PetriNetUnfolderBase]: For 179862/180997 co-relation queries the response was YES. [2025-01-09 21:22:53,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53144 conditions, 7643 events. 2684/7643 cut-off events. For 179862/180997 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 73981 event pairs, 263 based on Foata normal form. 295/7901 useless extension candidates. Maximal degree in co-relation 52968. Up to 1986 conditions per place. [2025-01-09 21:22:53,539 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 749 selfloop transitions, 257 changer transitions 26/1330 dead transitions. [2025-01-09 21:22:53,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 1330 transitions, 28958 flow [2025-01-09 21:22:53,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-09 21:22:53,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-09 21:22:53,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1094 transitions. [2025-01-09 21:22:53,541 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.775886524822695 [2025-01-09 21:22:53,541 INFO L175 Difference]: Start difference. First operand has 392 places, 1113 transitions, 23817 flow. Second operand 15 states and 1094 transitions. [2025-01-09 21:22:53,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 1330 transitions, 28958 flow [2025-01-09 21:22:54,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 1330 transitions, 28661 flow, removed 36 selfloop flow, removed 9 redundant places. [2025-01-09 21:22:54,791 INFO L231 Difference]: Finished difference. Result has 402 places, 1140 transitions, 25236 flow [2025-01-09 21:22:54,792 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=23533, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=230, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=867, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=25236, PETRI_PLACES=402, PETRI_TRANSITIONS=1140} [2025-01-09 21:22:54,792 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 310 predicate places. [2025-01-09 21:22:54,792 INFO L471 AbstractCegarLoop]: Abstraction has has 402 places, 1140 transitions, 25236 flow [2025-01-09 21:22:54,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:22:54,793 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:54,793 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] [2025-01-09 21:22:54,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-01-09 21:22:54,793 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:54,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:54,793 INFO L85 PathProgramCache]: Analyzing trace with hash -19214287, now seen corresponding path program 8 times [2025-01-09 21:22:54,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:54,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366602223] [2025-01-09 21:22:54,794 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:22:54,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:54,805 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-01-09 21:22:54,808 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 21:22:54,808 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:22:54,808 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:55,125 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 21:22:55,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:55,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366602223] [2025-01-09 21:22:55,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366602223] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:55,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:55,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:22:55,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703416713] [2025-01-09 21:22:55,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:55,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:22:55,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:55,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:22:55,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:22:55,483 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-01-09 21:22:55,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 1140 transitions, 25236 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:22:55,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:55,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-01-09 21:22:55,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:22:57,872 INFO L124 PetriNetUnfolderBase]: 2711/7696 cut-off events. [2025-01-09 21:22:57,873 INFO L125 PetriNetUnfolderBase]: For 196360/197766 co-relation queries the response was YES. [2025-01-09 21:22:57,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55252 conditions, 7696 events. 2711/7696 cut-off events. For 196360/197766 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 74777 event pairs, 279 based on Foata normal form. 318/7982 useless extension candidates. Maximal degree in co-relation 55072. Up to 2023 conditions per place. [2025-01-09 21:22:57,962 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 732 selfloop transitions, 392 changer transitions 22/1346 dead transitions. [2025-01-09 21:22:57,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 1346 transitions, 31395 flow [2025-01-09 21:22:57,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-09 21:22:57,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-09 21:22:57,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1075 transitions. [2025-01-09 21:22:57,963 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7624113475177305 [2025-01-09 21:22:57,963 INFO L175 Difference]: Start difference. First operand has 402 places, 1140 transitions, 25236 flow. Second operand 15 states and 1075 transitions. [2025-01-09 21:22:57,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 1346 transitions, 31395 flow [2025-01-09 21:22:59,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 1346 transitions, 31102 flow, removed 29 selfloop flow, removed 9 redundant places. [2025-01-09 21:22:59,329 INFO L231 Difference]: Finished difference. Result has 414 places, 1189 transitions, 27758 flow [2025-01-09 21:22:59,330 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=24961, PETRI_DIFFERENCE_MINUEND_PLACES=393, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=344, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=761, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=27758, PETRI_PLACES=414, PETRI_TRANSITIONS=1189} [2025-01-09 21:22:59,330 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 322 predicate places. [2025-01-09 21:22:59,330 INFO L471 AbstractCegarLoop]: Abstraction has has 414 places, 1189 transitions, 27758 flow [2025-01-09 21:22:59,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:22:59,330 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:22:59,330 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] [2025-01-09 21:22:59,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-01-09 21:22:59,331 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:22:59,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:22:59,331 INFO L85 PathProgramCache]: Analyzing trace with hash -412887781, now seen corresponding path program 6 times [2025-01-09 21:22:59,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:22:59,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699924918] [2025-01-09 21:22:59,331 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-09 21:22:59,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:22:59,336 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 59 statements into 1 equivalence classes. [2025-01-09 21:22:59,339 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 21:22:59,339 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-01-09 21:22:59,339 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:22:59,547 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 21:22:59,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:22:59,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699924918] [2025-01-09 21:22:59,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699924918] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:22:59,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:22:59,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:22:59,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856924001] [2025-01-09 21:22:59,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:22:59,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:22:59,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:22:59,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:22:59,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:22:59,857 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 94 [2025-01-09 21:22:59,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 1189 transitions, 27758 flow. Second operand has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:22:59,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:22:59,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 94 [2025-01-09 21:22:59,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:02,298 INFO L124 PetriNetUnfolderBase]: 2719/7779 cut-off events. [2025-01-09 21:23:02,298 INFO L125 PetriNetUnfolderBase]: For 204465/205683 co-relation queries the response was YES. [2025-01-09 21:23:02,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56099 conditions, 7779 events. 2719/7779 cut-off events. For 204465/205683 co-relation queries the response was YES. Maximal size of possible extension queue 436. Compared 75781 event pairs, 256 based on Foata normal form. 279/8028 useless extension candidates. Maximal degree in co-relation 55913. Up to 1987 conditions per place. [2025-01-09 21:23:02,405 INFO L140 encePairwiseOnDemand]: 73/94 looper letters, 821 selfloop transitions, 253 changer transitions 32/1422 dead transitions. [2025-01-09 21:23:02,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 1422 transitions, 32937 flow [2025-01-09 21:23:02,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-09 21:23:02,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-09 21:23:02,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1076 transitions. [2025-01-09 21:23:02,407 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7631205673758865 [2025-01-09 21:23:02,407 INFO L175 Difference]: Start difference. First operand has 414 places, 1189 transitions, 27758 flow. Second operand 15 states and 1076 transitions. [2025-01-09 21:23:02,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 1422 transitions, 32937 flow [2025-01-09 21:23:04,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 1422 transitions, 32544 flow, removed 96 selfloop flow, removed 8 redundant places. [2025-01-09 21:23:04,194 INFO L231 Difference]: Finished difference. Result has 429 places, 1214 transitions, 28714 flow [2025-01-09 21:23:04,195 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=27390, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=223, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=943, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=28714, PETRI_PLACES=429, PETRI_TRANSITIONS=1214} [2025-01-09 21:23:04,196 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 337 predicate places. [2025-01-09 21:23:04,196 INFO L471 AbstractCegarLoop]: Abstraction has has 429 places, 1214 transitions, 28714 flow [2025-01-09 21:23:04,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 62.30769230769231) internal successors, (810), 13 states have internal predecessors, (810), 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 21:23:04,197 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:04,197 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] [2025-01-09 21:23:04,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-01-09 21:23:04,197 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:23:04,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:04,198 INFO L85 PathProgramCache]: Analyzing trace with hash 62623573, now seen corresponding path program 2 times [2025-01-09 21:23:04,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:04,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382724016] [2025-01-09 21:23:04,198 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 21:23:04,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:04,205 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 59 statements into 1 equivalence classes. [2025-01-09 21:23:04,208 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 21:23:04,208 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-09 21:23:04,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:04,560 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 21:23:04,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:04,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382724016] [2025-01-09 21:23:04,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382724016] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:04,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:04,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:23:04,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017205568] [2025-01-09 21:23:04,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:04,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:23:04,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:04,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:23:04,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:23:04,777 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-01-09 21:23:04,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 1214 transitions, 28714 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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 21:23:04,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:04,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-01-09 21:23:04,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:08,422 INFO L124 PetriNetUnfolderBase]: 3371/9041 cut-off events. [2025-01-09 21:23:08,422 INFO L125 PetriNetUnfolderBase]: For 241521/242220 co-relation queries the response was YES. [2025-01-09 21:23:08,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67286 conditions, 9041 events. 3371/9041 cut-off events. For 241521/242220 co-relation queries the response was YES. Maximal size of possible extension queue 460. Compared 86752 event pairs, 680 based on Foata normal form. 89/9070 useless extension candidates. Maximal degree in co-relation 67093. Up to 2967 conditions per place. [2025-01-09 21:23:08,521 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 891 selfloop transitions, 363 changer transitions 51/1392 dead transitions. [2025-01-09 21:23:08,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 1392 transitions, 33730 flow [2025-01-09 21:23:08,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-09 21:23:08,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-01-09 21:23:08,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 964 transitions. [2025-01-09 21:23:08,523 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7325227963525835 [2025-01-09 21:23:08,523 INFO L175 Difference]: Start difference. First operand has 429 places, 1214 transitions, 28714 flow. Second operand 14 states and 964 transitions. [2025-01-09 21:23:08,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 1392 transitions, 33730 flow [2025-01-09 21:23:10,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 1392 transitions, 33154 flow, removed 94 selfloop flow, removed 10 redundant places. [2025-01-09 21:23:10,162 INFO L231 Difference]: Finished difference. Result has 438 places, 1246 transitions, 29769 flow [2025-01-09 21:23:10,163 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=28177, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=328, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=851, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=29769, PETRI_PLACES=438, PETRI_TRANSITIONS=1246} [2025-01-09 21:23:10,163 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 346 predicate places. [2025-01-09 21:23:10,163 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 1246 transitions, 29769 flow [2025-01-09 21:23:10,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:23:10,164 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:10,164 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] [2025-01-09 21:23:10,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-01-09 21:23:10,164 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:23:10,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:10,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1605457173, now seen corresponding path program 3 times [2025-01-09 21:23:10,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:10,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124548857] [2025-01-09 21:23:10,165 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 21:23:10,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:10,169 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 59 statements into 1 equivalence classes. [2025-01-09 21:23:10,172 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 21:23:10,172 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-01-09 21:23:10,172 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:10,338 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 21:23:10,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:10,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124548857] [2025-01-09 21:23:10,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124548857] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:10,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:10,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:23:10,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051559174] [2025-01-09 21:23:10,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:10,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:23:10,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:10,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:23:10,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:23:10,744 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-01-09 21:23:10,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 1246 transitions, 29769 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:23:10,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:10,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-01-09 21:23:10,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:14,035 INFO L124 PetriNetUnfolderBase]: 3428/9159 cut-off events. [2025-01-09 21:23:14,036 INFO L125 PetriNetUnfolderBase]: For 248894/249606 co-relation queries the response was YES. [2025-01-09 21:23:14,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69451 conditions, 9159 events. 3428/9159 cut-off events. For 248894/249606 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 87868 event pairs, 641 based on Foata normal form. 110/9213 useless extension candidates. Maximal degree in co-relation 69256. Up to 2967 conditions per place. [2025-01-09 21:23:14,145 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 1202 selfloop transitions, 201 changer transitions 22/1512 dead transitions. [2025-01-09 21:23:14,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 1512 transitions, 36653 flow [2025-01-09 21:23:14,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-09 21:23:14,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-09 21:23:14,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1035 transitions. [2025-01-09 21:23:14,146 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7340425531914894 [2025-01-09 21:23:14,146 INFO L175 Difference]: Start difference. First operand has 438 places, 1246 transitions, 29769 flow. Second operand 15 states and 1035 transitions. [2025-01-09 21:23:14,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 1512 transitions, 36653 flow [2025-01-09 21:23:16,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 1512 transitions, 36515 flow, removed 29 selfloop flow, removed 7 redundant places. [2025-01-09 21:23:16,101 INFO L231 Difference]: Finished difference. Result has 451 places, 1297 transitions, 31409 flow [2025-01-09 21:23:16,102 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=29644, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1048, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=31409, PETRI_PLACES=451, PETRI_TRANSITIONS=1297} [2025-01-09 21:23:16,102 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 359 predicate places. [2025-01-09 21:23:16,102 INFO L471 AbstractCegarLoop]: Abstraction has has 451 places, 1297 transitions, 31409 flow [2025-01-09 21:23:16,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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 21:23:16,103 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:16,103 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] [2025-01-09 21:23:16,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-01-09 21:23:16,103 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:23:16,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:16,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1779910327, now seen corresponding path program 4 times [2025-01-09 21:23:16,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:16,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754707899] [2025-01-09 21:23:16,104 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-09 21:23:16,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:16,110 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 59 statements into 2 equivalence classes. [2025-01-09 21:23:16,112 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 53 of 59 statements. [2025-01-09 21:23:16,113 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-01-09 21:23:16,113 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:16,357 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 21:23:16,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:16,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754707899] [2025-01-09 21:23:16,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754707899] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:16,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:16,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:23:16,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002912086] [2025-01-09 21:23:16,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:16,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:23:16,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:16,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:23:16,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:23:16,665 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-01-09 21:23:16,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 1297 transitions, 31409 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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 21:23:16,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:16,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-01-09 21:23:16,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:20,456 INFO L124 PetriNetUnfolderBase]: 3475/9307 cut-off events. [2025-01-09 21:23:20,456 INFO L125 PetriNetUnfolderBase]: For 263040/263751 co-relation queries the response was YES. [2025-01-09 21:23:20,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72305 conditions, 9307 events. 3475/9307 cut-off events. For 263040/263751 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 89739 event pairs, 680 based on Foata normal form. 107/9354 useless extension candidates. Maximal degree in co-relation 72104. Up to 2967 conditions per place. [2025-01-09 21:23:20,787 INFO L140 encePairwiseOnDemand]: 69/94 looper letters, 946 selfloop transitions, 385 changer transitions 54/1472 dead transitions. [2025-01-09 21:23:20,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 1472 transitions, 36754 flow [2025-01-09 21:23:20,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-09 21:23:20,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-09 21:23:20,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1027 transitions. [2025-01-09 21:23:20,789 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7283687943262411 [2025-01-09 21:23:20,789 INFO L175 Difference]: Start difference. First operand has 451 places, 1297 transitions, 31409 flow. Second operand 15 states and 1027 transitions. [2025-01-09 21:23:20,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 1472 transitions, 36754 flow [2025-01-09 21:23:22,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 1472 transitions, 36505 flow, removed 68 selfloop flow, removed 8 redundant places. [2025-01-09 21:23:22,952 INFO L231 Difference]: Finished difference. Result has 463 places, 1305 transitions, 32535 flow [2025-01-09 21:23:22,953 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=31204, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=365, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=914, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=32535, PETRI_PLACES=463, PETRI_TRANSITIONS=1305} [2025-01-09 21:23:22,953 INFO L279 CegarLoopForPetriNet]: 92 programPoint places, 371 predicate places. [2025-01-09 21:23:22,953 INFO L471 AbstractCegarLoop]: Abstraction has has 463 places, 1305 transitions, 32535 flow [2025-01-09 21:23:22,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 21:23:22,954 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:23:22,954 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] [2025-01-09 21:23:22,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-01-09 21:23:22,954 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-01-09 21:23:22,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:23:22,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1241731211, now seen corresponding path program 6 times [2025-01-09 21:23:22,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:23:22,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256505246] [2025-01-09 21:23:22,955 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-09 21:23:22,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:23:22,960 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 59 statements into 1 equivalence classes. [2025-01-09 21:23:22,962 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 21:23:22,963 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-01-09 21:23:22,963 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:23:23,145 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 21:23:23,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:23:23,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256505246] [2025-01-09 21:23:23,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256505246] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:23:23,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:23:23,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-01-09 21:23:23,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836008819] [2025-01-09 21:23:23,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:23:23,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 21:23:23,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:23:23,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 21:23:23,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-01-09 21:23:23,424 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 94 [2025-01-09 21:23:23,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 1305 transitions, 32535 flow. Second operand has 13 states, 13 states have (on average 56.76923076923077) internal successors, (738), 13 states have internal predecessors, (738), 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 21:23:23,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:23:23,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 94 [2025-01-09 21:23:23,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:23:27,048 INFO L124 PetriNetUnfolderBase]: 3498/9353 cut-off events. [2025-01-09 21:23:27,048 INFO L125 PetriNetUnfolderBase]: For 271683/272328 co-relation queries the response was YES. [2025-01-09 21:23:27,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73653 conditions, 9353 events. 3498/9353 cut-off events. For 271683/272328 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 90113 event pairs, 667 based on Foata normal form. 130/9418 useless extension candidates. Maximal degree in co-relation 73447. Up to 2895 conditions per place. [2025-01-09 21:23:27,196 INFO L140 encePairwiseOnDemand]: 70/94 looper letters, 1215 selfloop transitions, 208 changer transitions 36/1554 dead transitions. [2025-01-09 21:23:27,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 1554 transitions, 39169 flow [2025-01-09 21:23:27,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-09 21:23:27,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-09 21:23:27,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1030 transitions. [2025-01-09 21:23:27,198 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7304964539007093 [2025-01-09 21:23:27,198 INFO L175 Difference]: Start difference. First operand has 463 places, 1305 transitions, 32535 flow. Second operand 15 states and 1030 transitions. [2025-01-09 21:23:27,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 1554 transitions, 39169 flow