./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/05_tas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/05_tas.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 1ee4025da2c93fbd4be930880192a9e0c94d8979f3d9117e228b55f99542c3b0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:04:02,915 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:04:02,994 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-01-09 21:04:03,000 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:04:03,001 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:04:03,034 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:04:03,036 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:04:03,036 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:04:03,036 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:04:03,037 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:04:03,038 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:04:03,038 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:04:03,038 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:04:03,038 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:04:03,038 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:04:03,039 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:04:03,039 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:04:03,039 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:04:03,040 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:04:03,040 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:04:03,040 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:04:03,040 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:04:03,040 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-01-09 21:04:03,040 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:04:03,040 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:04:03,040 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:04:03,040 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:04:03,041 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:04:03,041 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:04:03,041 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:04:03,041 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:04:03,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:04:03,041 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:04:03,041 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:04:03,041 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:04:03,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:04:03,042 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:04:03,042 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:04:03,042 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 21:04:03,042 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 21:04:03,042 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:04:03,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:04:03,042 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:04:03,042 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:04:03,043 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:04:03,043 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:04:03,043 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 -> 1ee4025da2c93fbd4be930880192a9e0c94d8979f3d9117e228b55f99542c3b0 [2025-01-09 21:04:03,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:04:03,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:04:03,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:04:03,353 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:04:03,353 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:04:03,355 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/05_tas.i [2025-01-09 21:04:04,697 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4231f7215/d27cefb883d04732a2611e88f4469241/FLAGd965b35e0 [2025-01-09 21:04:05,026 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:04:05,026 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/05_tas.i [2025-01-09 21:04:05,038 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4231f7215/d27cefb883d04732a2611e88f4469241/FLAGd965b35e0 [2025-01-09 21:04:05,051 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4231f7215/d27cefb883d04732a2611e88f4469241 [2025-01-09 21:04:05,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:04:05,056 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:04:05,057 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:04:05,057 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:04:05,061 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:04:05,062 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:04:05" (1/1) ... [2025-01-09 21:04:05,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44c9dcb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:05, skipping insertion in model container [2025-01-09 21:04:05,062 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:04:05" (1/1) ... [2025-01-09 21:04:05,105 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:04:05,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:04:05,453 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:04:05,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:04:05,538 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:04:05,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:05 WrapperNode [2025-01-09 21:04:05,541 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:04:05,542 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:04:05,542 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:04:05,542 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:04:05,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:05" (1/1) ... [2025-01-09 21:04:05,561 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:05" (1/1) ... [2025-01-09 21:04:05,591 INFO L138 Inliner]: procedures = 169, calls = 26, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 168 [2025-01-09 21:04:05,592 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:04:05,593 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:04:05,593 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:04:05,594 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:04:05,601 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:05" (1/1) ... [2025-01-09 21:04:05,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:05" (1/1) ... [2025-01-09 21:04:05,607 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:05" (1/1) ... [2025-01-09 21:04:05,609 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:05" (1/1) ... [2025-01-09 21:04:05,622 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:05" (1/1) ... [2025-01-09 21:04:05,624 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:05" (1/1) ... [2025-01-09 21:04:05,627 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:05" (1/1) ... [2025-01-09 21:04:05,628 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:05" (1/1) ... [2025-01-09 21:04:05,629 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:05" (1/1) ... [2025-01-09 21:04:05,631 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:04:05,632 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:04:05,632 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:04:05,632 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:04:05,635 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:05" (1/1) ... [2025-01-09 21:04:05,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:04:05,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:04:05,661 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 21:04:05,664 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 21:04:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-09 21:04:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-01-09 21:04:05,679 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-01-09 21:04:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-09 21:04:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:04:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 21:04:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 21:04:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 21:04:05,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:04:05,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:04:05,680 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 21:04:05,786 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:04:05,787 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:04:06,134 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 21:04:06,135 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:04:06,310 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:04:06,311 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2025-01-09 21:04:06,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:04:06 BoogieIcfgContainer [2025-01-09 21:04:06,311 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:04:06,315 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:04:06,315 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:04:06,319 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:04:06,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:04:05" (1/3) ... [2025-01-09 21:04:06,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6721716c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:04:06, skipping insertion in model container [2025-01-09 21:04:06,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:05" (2/3) ... [2025-01-09 21:04:06,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6721716c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:04:06, skipping insertion in model container [2025-01-09 21:04:06,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:04:06" (3/3) ... [2025-01-09 21:04:06,323 INFO L128 eAbstractionObserver]: Analyzing ICFG 05_tas.i [2025-01-09 21:04:06,342 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:04:06,345 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 05_tas.i that has 2 procedures, 135 locations, 1 initial locations, 3 loop locations, and 16 error locations. [2025-01-09 21:04:06,345 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 21:04:06,465 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:04:06,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 145 transitions, 294 flow [2025-01-09 21:04:06,581 INFO L124 PetriNetUnfolderBase]: 10/152 cut-off events. [2025-01-09 21:04:06,584 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:04:06,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 152 events. 10/152 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 174 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 130. Up to 2 conditions per place. [2025-01-09 21:04:06,594 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 145 transitions, 294 flow [2025-01-09 21:04:06,598 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 145 transitions, 294 flow [2025-01-09 21:04:06,604 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:04:06,617 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;@71b33b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:04:06,617 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2025-01-09 21:04:06,628 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:04:06,628 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2025-01-09 21:04:06,629 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:04:06,629 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:04:06,630 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] [2025-01-09 21:04:06,630 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2025-01-09 21:04:06,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:04:06,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1369077775, now seen corresponding path program 1 times [2025-01-09 21:04:06,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:04:06,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254553844] [2025-01-09 21:04:06,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:04:06,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:04:06,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-09 21:04:06,762 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-09 21:04:06,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:04:06,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:04:07,132 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 21:04:07,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:04:07,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254553844] [2025-01-09 21:04:07,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254553844] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:04:07,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:04:07,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-09 21:04:07,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088549821] [2025-01-09 21:04:07,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:04:07,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 21:04:07,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:04:07,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 21:04:07,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 21:04:07,160 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 145 [2025-01-09 21:04:07,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 145 transitions, 294 flow. Second operand has 2 states, 2 states have (on average 125.0) internal successors, (250), 2 states have internal predecessors, (250), 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 21:04:07,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:04:07,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 145 [2025-01-09 21:04:07,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:04:07,231 INFO L124 PetriNetUnfolderBase]: 3/122 cut-off events. [2025-01-09 21:04:07,231 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:04:07,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 122 events. 3/122 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 11/118 useless extension candidates. Maximal degree in co-relation 106. Up to 4 conditions per place. [2025-01-09 21:04:07,235 INFO L140 encePairwiseOnDemand]: 130/145 looper letters, 3 selfloop transitions, 0 changer transitions 0/119 dead transitions. [2025-01-09 21:04:07,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 119 transitions, 248 flow [2025-01-09 21:04:07,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 21:04:07,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-01-09 21:04:07,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 266 transitions. [2025-01-09 21:04:07,249 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9172413793103448 [2025-01-09 21:04:07,251 INFO L175 Difference]: Start difference. First operand has 138 places, 145 transitions, 294 flow. Second operand 2 states and 266 transitions. [2025-01-09 21:04:07,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 119 transitions, 248 flow [2025-01-09 21:04:07,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 119 transitions, 248 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:04:07,259 INFO L231 Difference]: Finished difference. Result has 120 places, 119 transitions, 242 flow [2025-01-09 21:04:07,261 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=242, PETRI_PLACES=120, PETRI_TRANSITIONS=119} [2025-01-09 21:04:07,266 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, -18 predicate places. [2025-01-09 21:04:07,267 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 119 transitions, 242 flow [2025-01-09 21:04:07,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 125.0) internal successors, (250), 2 states have internal predecessors, (250), 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 21:04:07,268 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:04:07,269 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:04:07,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 21:04:07,269 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2025-01-09 21:04:07,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:04:07,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1631931933, now seen corresponding path program 1 times [2025-01-09 21:04:07,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:04:07,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231794535] [2025-01-09 21:04:07,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:04:07,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:04:07,306 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-09 21:04:07,314 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-09 21:04:07,317 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:04:07,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:04:07,318 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 21:04:07,321 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-09 21:04:07,328 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-09 21:04:07,330 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:04:07,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:04:07,354 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 21:04:07,354 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 21:04:07,357 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2025-01-09 21:04:07,360 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2025-01-09 21:04:07,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2025-01-09 21:04:07,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2025-01-09 21:04:07,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2025-01-09 21:04:07,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2025-01-09 21:04:07,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2025-01-09 21:04:07,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2025-01-09 21:04:07,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2025-01-09 21:04:07,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2025-01-09 21:04:07,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2025-01-09 21:04:07,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2025-01-09 21:04:07,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2025-01-09 21:04:07,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2025-01-09 21:04:07,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2025-01-09 21:04:07,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2025-01-09 21:04:07,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2025-01-09 21:04:07,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2025-01-09 21:04:07,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2025-01-09 21:04:07,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2025-01-09 21:04:07,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2025-01-09 21:04:07,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2025-01-09 21:04:07,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2025-01-09 21:04:07,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2025-01-09 21:04:07,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2025-01-09 21:04:07,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2025-01-09 21:04:07,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2025-01-09 21:04:07,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2025-01-09 21:04:07,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2025-01-09 21:04:07,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2025-01-09 21:04:07,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2025-01-09 21:04:07,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2025-01-09 21:04:07,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2025-01-09 21:04:07,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 21:04:07,367 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-09 21:04:07,373 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-09 21:04:07,373 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-01-09 21:04:07,471 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:04:07,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 267 transitions, 544 flow [2025-01-09 21:04:07,569 INFO L124 PetriNetUnfolderBase]: 20/283 cut-off events. [2025-01-09 21:04:07,570 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-01-09 21:04:07,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 283 events. 20/283 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 684 event pairs, 0 based on Foata normal form. 0/228 useless extension candidates. Maximal degree in co-relation 251. Up to 3 conditions per place. [2025-01-09 21:04:07,578 INFO L82 GeneralOperation]: Start removeDead. Operand has 252 places, 267 transitions, 544 flow [2025-01-09 21:04:07,584 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 252 places, 267 transitions, 544 flow [2025-01-09 21:04:07,586 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:04:07,588 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;@71b33b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:04:07,589 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2025-01-09 21:04:07,594 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:04:07,595 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2025-01-09 21:04:07,595 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:04:07,595 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:04:07,595 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] [2025-01-09 21:04:07,596 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-01-09 21:04:07,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:04:07,596 INFO L85 PathProgramCache]: Analyzing trace with hash -90063627, now seen corresponding path program 1 times [2025-01-09 21:04:07,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:04:07,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208304585] [2025-01-09 21:04:07,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:04:07,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:04:07,613 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-09 21:04:07,623 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-09 21:04:07,625 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:04:07,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:04:07,831 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 21:04:07,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:04:07,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208304585] [2025-01-09 21:04:07,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208304585] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:04:07,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:04:07,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-09 21:04:07,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102897283] [2025-01-09 21:04:07,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:04:07,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 21:04:07,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:04:07,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 21:04:07,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 21:04:07,835 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 267 [2025-01-09 21:04:07,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 267 transitions, 544 flow. Second operand has 2 states, 2 states have (on average 227.0) internal successors, (454), 2 states have internal predecessors, (454), 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 21:04:07,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:04:07,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 267 [2025-01-09 21:04:07,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:04:07,999 INFO L124 PetriNetUnfolderBase]: 15/428 cut-off events. [2025-01-09 21:04:07,999 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-01-09 21:04:08,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 428 events. 15/428 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1484 event pairs, 2 based on Foata normal form. 43/410 useless extension candidates. Maximal degree in co-relation 319. Up to 16 conditions per place. [2025-01-09 21:04:08,007 INFO L140 encePairwiseOnDemand]: 238/267 looper letters, 6 selfloop transitions, 0 changer transitions 0/219 dead transitions. [2025-01-09 21:04:08,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 219 transitions, 460 flow [2025-01-09 21:04:08,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 21:04:08,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-01-09 21:04:08,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 487 transitions. [2025-01-09 21:04:08,011 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9119850187265918 [2025-01-09 21:04:08,011 INFO L175 Difference]: Start difference. First operand has 252 places, 267 transitions, 544 flow. Second operand 2 states and 487 transitions. [2025-01-09 21:04:08,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 219 transitions, 460 flow [2025-01-09 21:04:08,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 219 transitions, 460 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:04:08,021 INFO L231 Difference]: Finished difference. Result has 219 places, 219 transitions, 448 flow [2025-01-09 21:04:08,021 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=267, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=448, PETRI_PLACES=219, PETRI_TRANSITIONS=219} [2025-01-09 21:04:08,022 INFO L279 CegarLoopForPetriNet]: 252 programPoint places, -33 predicate places. [2025-01-09 21:04:08,022 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 219 transitions, 448 flow [2025-01-09 21:04:08,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 227.0) internal successors, (454), 2 states have internal predecessors, (454), 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 21:04:08,023 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:04:08,023 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:04:08,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 21:04:08,023 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-01-09 21:04:08,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:04:08,024 INFO L85 PathProgramCache]: Analyzing trace with hash -327136602, now seen corresponding path program 1 times [2025-01-09 21:04:08,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:04:08,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188892757] [2025-01-09 21:04:08,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:04:08,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:04:08,036 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-01-09 21:04:08,042 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-09 21:04:08,043 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:04:08,043 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:04:08,043 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 21:04:08,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-01-09 21:04:08,054 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-09 21:04:08,055 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:04:08,055 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:04:08,063 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 21:04:08,064 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 21:04:08,065 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2025-01-09 21:04:08,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2025-01-09 21:04:08,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2025-01-09 21:04:08,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2025-01-09 21:04:08,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2025-01-09 21:04:08,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2025-01-09 21:04:08,066 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2025-01-09 21:04:08,066 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2025-01-09 21:04:08,066 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2025-01-09 21:04:08,066 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2025-01-09 21:04:08,066 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2025-01-09 21:04:08,066 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2025-01-09 21:04:08,066 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2025-01-09 21:04:08,066 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2025-01-09 21:04:08,066 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2025-01-09 21:04:08,067 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2025-01-09 21:04:08,067 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2025-01-09 21:04:08,067 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2025-01-09 21:04:08,067 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2025-01-09 21:04:08,067 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2025-01-09 21:04:08,067 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2025-01-09 21:04:08,067 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2025-01-09 21:04:08,067 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2025-01-09 21:04:08,068 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2025-01-09 21:04:08,068 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2025-01-09 21:04:08,068 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2025-01-09 21:04:08,068 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2025-01-09 21:04:08,068 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2025-01-09 21:04:08,068 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2025-01-09 21:04:08,068 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2025-01-09 21:04:08,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2025-01-09 21:04:08,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2025-01-09 21:04:08,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2025-01-09 21:04:08,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2025-01-09 21:04:08,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2025-01-09 21:04:08,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2025-01-09 21:04:08,070 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2025-01-09 21:04:08,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2025-01-09 21:04:08,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2025-01-09 21:04:08,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2025-01-09 21:04:08,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2025-01-09 21:04:08,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2025-01-09 21:04:08,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2025-01-09 21:04:08,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2025-01-09 21:04:08,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2025-01-09 21:04:08,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2025-01-09 21:04:08,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2025-01-09 21:04:08,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2025-01-09 21:04:08,071 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2025-01-09 21:04:08,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 21:04:08,072 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-09 21:04:08,072 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-09 21:04:08,072 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-01-09 21:04:08,194 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:04:08,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 366 places, 389 transitions, 796 flow [2025-01-09 21:04:08,277 INFO L124 PetriNetUnfolderBase]: 30/414 cut-off events. [2025-01-09 21:04:08,278 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-01-09 21:04:08,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 427 conditions, 414 events. 30/414 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1395 event pairs, 0 based on Foata normal form. 0/332 useless extension candidates. Maximal degree in co-relation 372. Up to 4 conditions per place. [2025-01-09 21:04:08,288 INFO L82 GeneralOperation]: Start removeDead. Operand has 366 places, 389 transitions, 796 flow [2025-01-09 21:04:08,296 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 366 places, 389 transitions, 796 flow [2025-01-09 21:04:08,297 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:04:08,297 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;@71b33b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:04:08,297 INFO L334 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2025-01-09 21:04:08,303 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:04:08,303 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2025-01-09 21:04:08,303 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:04:08,303 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:04:08,303 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] [2025-01-09 21:04:08,303 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-01-09 21:04:08,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:04:08,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1345494355, now seen corresponding path program 1 times [2025-01-09 21:04:08,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:04:08,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876309619] [2025-01-09 21:04:08,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:04:08,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:04:08,312 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-09 21:04:08,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-09 21:04:08,323 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:04:08,323 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:04:08,452 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 21:04:08,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:04:08,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876309619] [2025-01-09 21:04:08,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876309619] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:04:08,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:04:08,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-09 21:04:08,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220048704] [2025-01-09 21:04:08,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:04:08,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 21:04:08,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:04:08,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 21:04:08,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 21:04:08,456 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 389 [2025-01-09 21:04:08,459 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 389 transitions, 796 flow. Second operand has 2 states, 2 states have (on average 329.0) internal successors, (658), 2 states have internal predecessors, (658), 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 21:04:08,459 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:04:08,459 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 389 [2025-01-09 21:04:08,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:04:08,837 INFO L124 PetriNetUnfolderBase]: 51/1142 cut-off events. [2025-01-09 21:04:08,837 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2025-01-09 21:04:08,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1222 conditions, 1142 events. 51/1142 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 7033 event pairs, 10 based on Foata normal form. 123/1093 useless extension candidates. Maximal degree in co-relation 752. Up to 52 conditions per place. [2025-01-09 21:04:08,863 INFO L140 encePairwiseOnDemand]: 346/389 looper letters, 9 selfloop transitions, 0 changer transitions 0/319 dead transitions. [2025-01-09 21:04:08,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 319 transitions, 674 flow [2025-01-09 21:04:08,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 21:04:08,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-01-09 21:04:08,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 708 transitions. [2025-01-09 21:04:08,869 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.910025706940874 [2025-01-09 21:04:08,869 INFO L175 Difference]: Start difference. First operand has 366 places, 389 transitions, 796 flow. Second operand 2 states and 708 transitions. [2025-01-09 21:04:08,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 319 transitions, 674 flow [2025-01-09 21:04:08,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 319 transitions, 672 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-01-09 21:04:08,881 INFO L231 Difference]: Finished difference. Result has 318 places, 319 transitions, 654 flow [2025-01-09 21:04:08,883 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=389, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=654, PETRI_PLACES=318, PETRI_TRANSITIONS=319} [2025-01-09 21:04:08,884 INFO L279 CegarLoopForPetriNet]: 366 programPoint places, -48 predicate places. [2025-01-09 21:04:08,884 INFO L471 AbstractCegarLoop]: Abstraction has has 318 places, 319 transitions, 654 flow [2025-01-09 21:04:08,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 329.0) internal successors, (658), 2 states have internal predecessors, (658), 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 21:04:08,886 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:04:08,886 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] [2025-01-09 21:04:08,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 21:04:08,886 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-01-09 21:04:08,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:04:08,887 INFO L85 PathProgramCache]: Analyzing trace with hash -2127105060, now seen corresponding path program 1 times [2025-01-09 21:04:08,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:04:08,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412371132] [2025-01-09 21:04:08,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:04:08,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:04:08,905 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-01-09 21:04:08,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-09 21:04:08,914 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:04:08,914 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:04:09,248 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 21:04:09,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:04:09,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412371132] [2025-01-09 21:04:09,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412371132] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:04:09,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:04:09,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:04:09,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255837431] [2025-01-09 21:04:09,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:04:09,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:04:09,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:04:09,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:04:09,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:04:09,964 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 389 [2025-01-09 21:04:09,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 319 transitions, 654 flow. Second operand has 6 states, 6 states have (on average 301.5) internal successors, (1809), 6 states have internal predecessors, (1809), 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 21:04:09,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:04:09,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 389 [2025-01-09 21:04:09,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:04:13,004 INFO L124 PetriNetUnfolderBase]: 3551/14193 cut-off events. [2025-01-09 21:04:13,004 INFO L125 PetriNetUnfolderBase]: For 649/649 co-relation queries the response was YES. [2025-01-09 21:04:13,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19742 conditions, 14193 events. 3551/14193 cut-off events. For 649/649 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 140211 event pairs, 1092 based on Foata normal form. 0/12183 useless extension candidates. Maximal degree in co-relation 19736. Up to 4142 conditions per place. [2025-01-09 21:04:13,196 INFO L140 encePairwiseOnDemand]: 363/389 looper letters, 47 selfloop transitions, 60 changer transitions 0/389 dead transitions. [2025-01-09 21:04:13,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 389 transitions, 1048 flow [2025-01-09 21:04:13,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:04:13,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:04:13,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1909 transitions. [2025-01-09 21:04:13,204 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8179091688089117 [2025-01-09 21:04:13,204 INFO L175 Difference]: Start difference. First operand has 318 places, 319 transitions, 654 flow. Second operand 6 states and 1909 transitions. [2025-01-09 21:04:13,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 389 transitions, 1048 flow [2025-01-09 21:04:13,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 389 transitions, 1048 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:04:13,216 INFO L231 Difference]: Finished difference. Result has 328 places, 378 transitions, 1062 flow [2025-01-09 21:04:13,217 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=389, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1062, PETRI_PLACES=328, PETRI_TRANSITIONS=378} [2025-01-09 21:04:13,218 INFO L279 CegarLoopForPetriNet]: 366 programPoint places, -38 predicate places. [2025-01-09 21:04:13,218 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 378 transitions, 1062 flow [2025-01-09 21:04:13,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 301.5) internal successors, (1809), 6 states have internal predecessors, (1809), 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 21:04:13,219 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:04:13,219 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:04:13,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 21:04:13,219 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2025-01-09 21:04:13,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:04:13,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1842133604, now seen corresponding path program 1 times [2025-01-09 21:04:13,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:04:13,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475490754] [2025-01-09 21:04:13,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:04:13,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:04:13,227 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-01-09 21:04:13,231 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-01-09 21:04:13,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:04:13,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:04:13,232 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 21:04:13,234 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-01-09 21:04:13,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-01-09 21:04:13,241 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:04:13,241 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:04:13,249 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 21:04:13,250 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 21:04:13,251 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2025-01-09 21:04:13,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2025-01-09 21:04:13,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2025-01-09 21:04:13,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2025-01-09 21:04:13,252 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2025-01-09 21:04:13,252 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2025-01-09 21:04:13,252 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2025-01-09 21:04:13,252 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2025-01-09 21:04:13,252 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2025-01-09 21:04:13,252 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2025-01-09 21:04:13,252 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2025-01-09 21:04:13,252 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2025-01-09 21:04:13,252 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2025-01-09 21:04:13,252 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2025-01-09 21:04:13,252 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2025-01-09 21:04:13,253 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2025-01-09 21:04:13,253 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2025-01-09 21:04:13,253 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2025-01-09 21:04:13,253 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2025-01-09 21:04:13,253 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2025-01-09 21:04:13,253 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2025-01-09 21:04:13,254 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2025-01-09 21:04:13,254 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2025-01-09 21:04:13,254 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2025-01-09 21:04:13,254 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2025-01-09 21:04:13,254 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2025-01-09 21:04:13,254 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2025-01-09 21:04:13,254 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2025-01-09 21:04:13,254 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2025-01-09 21:04:13,254 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2025-01-09 21:04:13,254 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2025-01-09 21:04:13,254 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2025-01-09 21:04:13,255 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2025-01-09 21:04:13,255 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2025-01-09 21:04:13,255 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2025-01-09 21:04:13,255 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2025-01-09 21:04:13,255 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2025-01-09 21:04:13,255 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2025-01-09 21:04:13,255 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2025-01-09 21:04:13,255 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2025-01-09 21:04:13,255 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2025-01-09 21:04:13,255 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2025-01-09 21:04:13,255 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2025-01-09 21:04:13,255 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2025-01-09 21:04:13,255 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2025-01-09 21:04:13,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2025-01-09 21:04:13,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2025-01-09 21:04:13,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2025-01-09 21:04:13,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2025-01-09 21:04:13,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2025-01-09 21:04:13,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2025-01-09 21:04:13,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2025-01-09 21:04:13,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2025-01-09 21:04:13,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2025-01-09 21:04:13,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2025-01-09 21:04:13,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2025-01-09 21:04:13,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2025-01-09 21:04:13,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2025-01-09 21:04:13,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2025-01-09 21:04:13,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2025-01-09 21:04:13,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2025-01-09 21:04:13,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2025-01-09 21:04:13,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2025-01-09 21:04:13,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2025-01-09 21:04:13,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2025-01-09 21:04:13,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 21:04:13,257 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-01-09 21:04:13,257 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-09 21:04:13,257 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-01-09 21:04:13,392 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:04:13,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 480 places, 511 transitions, 1050 flow [2025-01-09 21:04:13,535 INFO L124 PetriNetUnfolderBase]: 40/545 cut-off events. [2025-01-09 21:04:13,536 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-01-09 21:04:13,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 545 events. 40/545 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2176 event pairs, 0 based on Foata normal form. 0/436 useless extension candidates. Maximal degree in co-relation 493. Up to 5 conditions per place. [2025-01-09 21:04:13,552 INFO L82 GeneralOperation]: Start removeDead. Operand has 480 places, 511 transitions, 1050 flow [2025-01-09 21:04:13,562 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 480 places, 511 transitions, 1050 flow [2025-01-09 21:04:13,563 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:04:13,563 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;@71b33b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:04:13,563 INFO L334 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2025-01-09 21:04:13,567 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:04:13,567 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2025-01-09 21:04:13,567 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-09 21:04:13,567 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:04:13,567 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] [2025-01-09 21:04:13,567 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2025-01-09 21:04:13,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:04:13,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1506857931, now seen corresponding path program 1 times [2025-01-09 21:04:13,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:04:13,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755934370] [2025-01-09 21:04:13,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:04:13,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:04:13,576 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-09 21:04:13,579 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-09 21:04:13,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:04:13,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:04:13,674 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 21:04:13,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:04:13,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755934370] [2025-01-09 21:04:13,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755934370] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:04:13,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:04:13,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-09 21:04:13,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111480072] [2025-01-09 21:04:13,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:04:13,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 21:04:13,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:04:13,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 21:04:13,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 21:04:13,677 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 511 [2025-01-09 21:04:13,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 480 places, 511 transitions, 1050 flow. Second operand has 2 states, 2 states have (on average 431.0) internal successors, (862), 2 states have internal predecessors, (862), 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 21:04:13,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:04:13,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 511 [2025-01-09 21:04:13,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:04:14,502 INFO L124 PetriNetUnfolderBase]: 147/2684 cut-off events. [2025-01-09 21:04:14,503 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2025-01-09 21:04:14,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2901 conditions, 2684 events. 147/2684 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 22594 event pairs, 34 based on Foata normal form. 307/2573 useless extension candidates. Maximal degree in co-relation 1637. Up to 148 conditions per place. [2025-01-09 21:04:14,560 INFO L140 encePairwiseOnDemand]: 454/511 looper letters, 12 selfloop transitions, 0 changer transitions 0/419 dead transitions. [2025-01-09 21:04:14,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 419 transitions, 890 flow [2025-01-09 21:04:14,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 21:04:14,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-01-09 21:04:14,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 929 transitions. [2025-01-09 21:04:14,565 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9090019569471625 [2025-01-09 21:04:14,565 INFO L175 Difference]: Start difference. First operand has 480 places, 511 transitions, 1050 flow. Second operand 2 states and 929 transitions. [2025-01-09 21:04:14,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 419 transitions, 890 flow [2025-01-09 21:04:14,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 419 transitions, 884 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-01-09 21:04:14,574 INFO L231 Difference]: Finished difference. Result has 417 places, 419 transitions, 860 flow [2025-01-09 21:04:14,574 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=511, PETRI_DIFFERENCE_MINUEND_FLOW=860, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=860, PETRI_PLACES=417, PETRI_TRANSITIONS=419} [2025-01-09 21:04:14,576 INFO L279 CegarLoopForPetriNet]: 480 programPoint places, -63 predicate places. [2025-01-09 21:04:14,578 INFO L471 AbstractCegarLoop]: Abstraction has has 417 places, 419 transitions, 860 flow [2025-01-09 21:04:14,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 431.0) internal successors, (862), 2 states have internal predecessors, (862), 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 21:04:14,579 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:04:14,579 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] [2025-01-09 21:04:14,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 21:04:14,579 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2025-01-09 21:04:14,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:04:14,580 INFO L85 PathProgramCache]: Analyzing trace with hash 321527124, now seen corresponding path program 1 times [2025-01-09 21:04:14,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:04:14,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396756694] [2025-01-09 21:04:14,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:04:14,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:04:14,592 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-01-09 21:04:14,597 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-01-09 21:04:14,600 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:04:14,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:04:14,818 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 21:04:14,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:04:14,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396756694] [2025-01-09 21:04:14,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396756694] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:04:14,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:04:14,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:04:14,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283596776] [2025-01-09 21:04:14,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:04:14,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:04:14,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:04:14,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:04:14,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:04:15,628 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 511 [2025-01-09 21:04:15,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 419 transitions, 860 flow. Second operand has 6 states, 6 states have (on average 399.5) internal successors, (2397), 6 states have internal predecessors, (2397), 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 21:04:15,631 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:04:15,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 511 [2025-01-09 21:04:15,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:04:29,852 INFO L124 PetriNetUnfolderBase]: 32114/89022 cut-off events. [2025-01-09 21:04:29,852 INFO L125 PetriNetUnfolderBase]: For 4387/4387 co-relation queries the response was YES. [2025-01-09 21:04:30,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133942 conditions, 89022 events. 32114/89022 cut-off events. For 4387/4387 co-relation queries the response was YES. Maximal size of possible extension queue 1431. Compared 1042804 event pairs, 10902 based on Foata normal form. 0/77180 useless extension candidates. Maximal degree in co-relation 133935. Up to 35862 conditions per place. [2025-01-09 21:04:31,896 INFO L140 encePairwiseOnDemand]: 479/511 looper letters, 58 selfloop transitions, 84 changer transitions 0/517 dead transitions. [2025-01-09 21:04:31,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 517 transitions, 1400 flow [2025-01-09 21:04:31,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:04:31,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:04:31,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2532 transitions. [2025-01-09 21:04:31,905 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8258317025440313 [2025-01-09 21:04:31,905 INFO L175 Difference]: Start difference. First operand has 417 places, 419 transitions, 860 flow. Second operand 6 states and 2532 transitions. [2025-01-09 21:04:31,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 517 transitions, 1400 flow [2025-01-09 21:04:31,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 422 places, 517 transitions, 1400 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:04:31,919 INFO L231 Difference]: Finished difference. Result has 427 places, 502 transitions, 1424 flow [2025-01-09 21:04:31,919 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=511, PETRI_DIFFERENCE_MINUEND_FLOW=860, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1424, PETRI_PLACES=427, PETRI_TRANSITIONS=502} [2025-01-09 21:04:31,922 INFO L279 CegarLoopForPetriNet]: 480 programPoint places, -53 predicate places. [2025-01-09 21:04:31,922 INFO L471 AbstractCegarLoop]: Abstraction has has 427 places, 502 transitions, 1424 flow [2025-01-09 21:04:31,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 399.5) internal successors, (2397), 6 states have internal predecessors, (2397), 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 21:04:31,923 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:04:31,924 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:04:31,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 21:04:31,924 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2025-01-09 21:04:31,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:04:31,925 INFO L85 PathProgramCache]: Analyzing trace with hash 718881394, now seen corresponding path program 1 times [2025-01-09 21:04:31,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:04:31,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50160144] [2025-01-09 21:04:31,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:04:31,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:04:31,946 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-01-09 21:04:31,954 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-01-09 21:04:31,954 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:04:31,954 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:04:32,332 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 21:04:32,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:04:32,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50160144] [2025-01-09 21:04:32,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50160144] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:04:32,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:04:32,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:04:32,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139133085] [2025-01-09 21:04:32,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:04:32,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:04:32,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:04:32,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:04:32,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:04:33,024 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 398 out of 511 [2025-01-09 21:04:33,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 502 transitions, 1424 flow. Second operand has 6 states, 6 states have (on average 399.6666666666667) internal successors, (2398), 6 states have internal predecessors, (2398), 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 21:04:33,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:04:33,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 398 of 511 [2025-01-09 21:04:33,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand