./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.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/12_fmaxsymopt_cas.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7a0803bc25bdee4cec741e6286f7294c3704d91bb65e5684830693d517eafafb --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:04:47,689 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:04:47,743 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-01-09 21:04:47,749 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:04:47,751 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:04:47,772 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:04:47,773 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:04:47,774 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:04:47,774 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:04:47,774 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:04:47,775 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:04:47,775 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:04:47,775 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:04:47,775 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:04:47,775 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:04:47,775 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:04:47,776 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:04:47,776 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:04:47,776 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:04:47,776 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:04:47,776 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:04:47,776 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:04:47,776 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-01-09 21:04:47,776 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:04:47,776 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:04:47,776 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:04:47,776 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:04:47,777 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:04:47,777 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:04:47,777 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:04:47,777 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:04:47,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:04:47,777 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:04:47,777 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:04:47,777 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:04:47,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:04:47,777 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:04:47,777 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:04:47,777 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 21:04:47,777 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 21:04:47,777 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:04:47,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:04:47,777 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:04:47,777 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:04:47,777 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:04:47,777 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:04:47,777 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 -> 7a0803bc25bdee4cec741e6286f7294c3704d91bb65e5684830693d517eafafb [2025-01-09 21:04:48,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:04:48,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:04:48,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:04:48,007 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:04:48,008 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:04:48,009 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i [2025-01-09 21:04:49,099 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5ad4b65ae/96a2d7ee589e456ca2321ebdb5cf4373/FLAG5c39a1484 [2025-01-09 21:04:49,365 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:04:49,366 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/12_fmaxsymopt_cas.i [2025-01-09 21:04:49,374 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5ad4b65ae/96a2d7ee589e456ca2321ebdb5cf4373/FLAG5c39a1484 [2025-01-09 21:04:49,682 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5ad4b65ae/96a2d7ee589e456ca2321ebdb5cf4373 [2025-01-09 21:04:49,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:04:49,686 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:04:49,687 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:04:49,688 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:04:49,691 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:04:49,691 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:04:49" (1/1) ... [2025-01-09 21:04:49,692 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354fb95c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:49, skipping insertion in model container [2025-01-09 21:04:49,692 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:04:49" (1/1) ... [2025-01-09 21:04:49,708 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:04:49,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:04:49,974 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:04:50,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:04:50,052 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:04:50,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:50 WrapperNode [2025-01-09 21:04:50,055 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:04:50,057 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:04:50,057 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:04:50,057 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:04:50,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:50" (1/1) ... [2025-01-09 21:04:50,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:50" (1/1) ... [2025-01-09 21:04:50,094 INFO L138 Inliner]: procedures = 170, calls = 30, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 138 [2025-01-09 21:04:50,096 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:04:50,096 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:04:50,096 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:04:50,096 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:04:50,101 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:50" (1/1) ... [2025-01-09 21:04:50,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:50" (1/1) ... [2025-01-09 21:04:50,104 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:50" (1/1) ... [2025-01-09 21:04:50,105 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:50" (1/1) ... [2025-01-09 21:04:50,111 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:50" (1/1) ... [2025-01-09 21:04:50,112 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:50" (1/1) ... [2025-01-09 21:04:50,116 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:50" (1/1) ... [2025-01-09 21:04:50,117 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:50" (1/1) ... [2025-01-09 21:04:50,118 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:50" (1/1) ... [2025-01-09 21:04:50,119 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:04:50,120 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:04:50,120 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:04:50,120 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:04:50,121 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:50" (1/1) ... [2025-01-09 21:04:50,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:04:50,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:04:50,152 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 21:04:50,157 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 21:04:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-09 21:04:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-01-09 21:04:50,171 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-01-09 21:04:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-09 21:04:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:04:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 21:04:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 21:04:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 21:04:50,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:04:50,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:04:50,172 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 21:04:50,265 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:04:50,266 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:04:50,471 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 21:04:50,471 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:04:50,573 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:04:50,575 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-09 21:04:50,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:04:50 BoogieIcfgContainer [2025-01-09 21:04:50,575 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:04:50,577 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:04:50,577 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:04:50,583 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:04:50,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:04:49" (1/3) ... [2025-01-09 21:04:50,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a11b5f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:04:50, skipping insertion in model container [2025-01-09 21:04:50,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:04:50" (2/3) ... [2025-01-09 21:04:50,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a11b5f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:04:50, skipping insertion in model container [2025-01-09 21:04:50,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:04:50" (3/3) ... [2025-01-09 21:04:50,585 INFO L128 eAbstractionObserver]: Analyzing ICFG 12_fmaxsymopt_cas.i [2025-01-09 21:04:50,595 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:04:50,596 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 12_fmaxsymopt_cas.i that has 2 procedures, 114 locations, 1 initial locations, 3 loop locations, and 8 error locations. [2025-01-09 21:04:50,596 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 21:04:50,681 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:04:50,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 123 transitions, 250 flow [2025-01-09 21:04:50,768 INFO L124 PetriNetUnfolderBase]: 9/130 cut-off events. [2025-01-09 21:04:50,770 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:04:50,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 130 events. 9/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 210 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 101. Up to 3 conditions per place. [2025-01-09 21:04:50,779 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 123 transitions, 250 flow [2025-01-09 21:04:50,782 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 123 transitions, 250 flow [2025-01-09 21:04:50,788 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:04:50,800 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;@73d95fd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:04:50,800 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2025-01-09 21:04:50,811 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:04:50,813 INFO L124 PetriNetUnfolderBase]: 0/43 cut-off events. [2025-01-09 21:04:50,814 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:04:50,814 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:04:50,815 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] [2025-01-09 21:04:50,816 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2025-01-09 21:04:50,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:04:50,820 INFO L85 PathProgramCache]: Analyzing trace with hash 141692448, now seen corresponding path program 1 times [2025-01-09 21:04:50,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:04:50,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831501061] [2025-01-09 21:04:50,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:04:50,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:04:50,877 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-09 21:04:50,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-09 21:04:50,890 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:04:50,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:04:50,890 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 21:04:50,896 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-09 21:04:50,911 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-09 21:04:50,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:04:50,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:04:50,930 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 21:04:50,932 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 21:04:50,932 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2025-01-09 21:04:50,933 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2025-01-09 21:04:50,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2025-01-09 21:04:50,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2025-01-09 21:04:50,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2025-01-09 21:04:50,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2025-01-09 21:04:50,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2025-01-09 21:04:50,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2025-01-09 21:04:50,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2025-01-09 21:04:50,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2025-01-09 21:04:50,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2025-01-09 21:04:50,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2025-01-09 21:04:50,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2025-01-09 21:04:50,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2025-01-09 21:04:50,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2025-01-09 21:04:50,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2025-01-09 21:04:50,934 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2025-01-09 21:04:50,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 21:04:50,935 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 21:04:50,941 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-09 21:04:50,941 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-01-09 21:04:51,002 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:04:51,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 216 transitions, 442 flow [2025-01-09 21:04:51,055 INFO L124 PetriNetUnfolderBase]: 18/232 cut-off events. [2025-01-09 21:04:51,055 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-01-09 21:04:51,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 240 conditions, 232 events. 18/232 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 677 event pairs, 0 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 193. Up to 3 conditions per place. [2025-01-09 21:04:51,057 INFO L82 GeneralOperation]: Start removeDead. Operand has 203 places, 216 transitions, 442 flow [2025-01-09 21:04:51,059 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 203 places, 216 transitions, 442 flow [2025-01-09 21:04:51,060 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:04:51,061 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;@73d95fd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:04:51,061 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2025-01-09 21:04:51,067 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:04:51,067 INFO L124 PetriNetUnfolderBase]: 1/65 cut-off events. [2025-01-09 21:04:51,067 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-01-09 21:04:51,067 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:04:51,067 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:04:51,067 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2025-01-09 21:04:51,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:04:51,068 INFO L85 PathProgramCache]: Analyzing trace with hash 884919533, now seen corresponding path program 1 times [2025-01-09 21:04:51,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:04:51,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003042079] [2025-01-09 21:04:51,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:04:51,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:04:51,076 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-01-09 21:04:51,093 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-01-09 21:04:51,093 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:04:51,093 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:04:51,094 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 21:04:51,096 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-01-09 21:04:51,105 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-01-09 21:04:51,105 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:04:51,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:04:51,115 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 21:04:51,116 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 21:04:51,117 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2025-01-09 21:04:51,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2025-01-09 21:04:51,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2025-01-09 21:04:51,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2025-01-09 21:04:51,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2025-01-09 21:04:51,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2025-01-09 21:04:51,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2025-01-09 21:04:51,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2025-01-09 21:04:51,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2025-01-09 21:04:51,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2025-01-09 21:04:51,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2025-01-09 21:04:51,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2025-01-09 21:04:51,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2025-01-09 21:04:51,117 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2025-01-09 21:04:51,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2025-01-09 21:04:51,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2025-01-09 21:04:51,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2025-01-09 21:04:51,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2025-01-09 21:04:51,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2025-01-09 21:04:51,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2025-01-09 21:04:51,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2025-01-09 21:04:51,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2025-01-09 21:04:51,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2025-01-09 21:04:51,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2025-01-09 21:04:51,118 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2025-01-09 21:04:51,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 21:04:51,118 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 21:04:51,119 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-09 21:04:51,119 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-01-09 21:04:51,199 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:04:51,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 289 places, 309 transitions, 636 flow [2025-01-09 21:04:51,268 INFO L124 PetriNetUnfolderBase]: 27/334 cut-off events. [2025-01-09 21:04:51,268 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-01-09 21:04:51,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 334 events. 27/334 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1231 event pairs, 0 based on Foata normal form. 0/279 useless extension candidates. Maximal degree in co-relation 285. Up to 4 conditions per place. [2025-01-09 21:04:51,275 INFO L82 GeneralOperation]: Start removeDead. Operand has 289 places, 309 transitions, 636 flow [2025-01-09 21:04:51,281 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 289 places, 309 transitions, 636 flow [2025-01-09 21:04:51,282 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:04:51,283 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@73d95fd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:04:51,283 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2025-01-09 21:04:51,293 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:04:51,294 INFO L124 PetriNetUnfolderBase]: 2/94 cut-off events. [2025-01-09 21:04:51,294 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-01-09 21:04:51,294 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:04:51,294 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:04:51,295 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2025-01-09 21:04:51,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:04:51,295 INFO L85 PathProgramCache]: Analyzing trace with hash 778510611, now seen corresponding path program 1 times [2025-01-09 21:04:51,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:04:51,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964544930] [2025-01-09 21:04:51,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:04:51,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:04:51,308 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-01-09 21:04:51,327 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-01-09 21:04:51,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:04:51,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:04:51,330 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 21:04:51,347 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-01-09 21:04:51,362 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-01-09 21:04:51,365 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:04:51,366 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:04:51,374 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 21:04:51,374 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 21:04:51,374 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2025-01-09 21:04:51,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2025-01-09 21:04:51,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2025-01-09 21:04:51,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2025-01-09 21:04:51,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2025-01-09 21:04:51,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2025-01-09 21:04:51,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2025-01-09 21:04:51,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2025-01-09 21:04:51,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2025-01-09 21:04:51,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2025-01-09 21:04:51,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2025-01-09 21:04:51,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2025-01-09 21:04:51,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2025-01-09 21:04:51,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2025-01-09 21:04:51,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2025-01-09 21:04:51,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2025-01-09 21:04:51,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2025-01-09 21:04:51,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2025-01-09 21:04:51,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2025-01-09 21:04:51,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2025-01-09 21:04:51,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2025-01-09 21:04:51,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2025-01-09 21:04:51,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2025-01-09 21:04:51,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2025-01-09 21:04:51,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2025-01-09 21:04:51,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2025-01-09 21:04:51,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2025-01-09 21:04:51,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2025-01-09 21:04:51,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2025-01-09 21:04:51,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2025-01-09 21:04:51,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2025-01-09 21:04:51,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2025-01-09 21:04:51,378 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2025-01-09 21:04:51,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 21:04:51,379 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 21:04:51,379 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-09 21:04:51,379 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2025-01-09 21:04:51,464 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:04:51,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 375 places, 402 transitions, 832 flow [2025-01-09 21:04:51,552 INFO L124 PetriNetUnfolderBase]: 36/436 cut-off events. [2025-01-09 21:04:51,552 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-01-09 21:04:51,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 455 conditions, 436 events. 36/436 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1849 event pairs, 0 based on Foata normal form. 0/363 useless extension candidates. Maximal degree in co-relation 377. Up to 5 conditions per place. [2025-01-09 21:04:51,558 INFO L82 GeneralOperation]: Start removeDead. Operand has 375 places, 402 transitions, 832 flow [2025-01-09 21:04:51,563 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 375 places, 402 transitions, 832 flow [2025-01-09 21:04:51,564 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:04:51,564 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;@73d95fd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:04:51,564 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2025-01-09 21:04:51,575 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:04:51,576 INFO L124 PetriNetUnfolderBase]: 3/134 cut-off events. [2025-01-09 21:04:51,576 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-01-09 21:04:51,576 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:04:51,576 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 4, 1, 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 21:04:51,576 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2025-01-09 21:04:51,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:04:51,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1810808974, now seen corresponding path program 1 times [2025-01-09 21:04:51,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:04:51,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401851491] [2025-01-09 21:04:51,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:04:51,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:04:51,593 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-01-09 21:04:51,609 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-01-09 21:04:51,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:04:51,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:04:51,613 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 21:04:51,616 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-01-09 21:04:51,633 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-01-09 21:04:51,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:04:51,634 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:04:51,647 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 21:04:51,647 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 21:04:51,647 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining) [2025-01-09 21:04:51,647 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (39 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (38 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (35 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (34 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (33 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (32 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (31 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (30 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (28 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (27 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (22 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (21 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (19 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (18 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (17 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (16 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (13 of 41 remaining) [2025-01-09 21:04:51,648 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 41 remaining) [2025-01-09 21:04:51,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (11 of 41 remaining) [2025-01-09 21:04:51,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 41 remaining) [2025-01-09 21:04:51,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 41 remaining) [2025-01-09 21:04:51,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 41 remaining) [2025-01-09 21:04:51,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 41 remaining) [2025-01-09 21:04:51,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 41 remaining) [2025-01-09 21:04:51,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 41 remaining) [2025-01-09 21:04:51,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 41 remaining) [2025-01-09 21:04:51,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (3 of 41 remaining) [2025-01-09 21:04:51,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 41 remaining) [2025-01-09 21:04:51,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (1 of 41 remaining) [2025-01-09 21:04:51,649 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 41 remaining) [2025-01-09 21:04:51,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 21:04:51,649 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 21:04:51,649 WARN L246 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-09 21:04:51,649 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2025-01-09 21:04:51,769 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:04:51,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 461 places, 495 transitions, 1030 flow [2025-01-09 21:04:51,895 INFO L124 PetriNetUnfolderBase]: 45/538 cut-off events. [2025-01-09 21:04:51,895 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2025-01-09 21:04:51,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 538 events. 45/538 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2505 event pairs, 0 based on Foata normal form. 0/447 useless extension candidates. Maximal degree in co-relation 469. Up to 6 conditions per place. [2025-01-09 21:04:51,903 INFO L82 GeneralOperation]: Start removeDead. Operand has 461 places, 495 transitions, 1030 flow [2025-01-09 21:04:51,912 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 461 places, 495 transitions, 1030 flow [2025-01-09 21:04:51,913 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:04:51,914 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;@73d95fd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:04:51,914 INFO L334 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2025-01-09 21:04:51,946 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:04:51,946 INFO L124 PetriNetUnfolderBase]: 4/167 cut-off events. [2025-01-09 21:04:51,946 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2025-01-09 21:04:51,946 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:04:51,946 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:04:51,946 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-01-09 21:04:51,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:04:51,947 INFO L85 PathProgramCache]: Analyzing trace with hash 996694978, now seen corresponding path program 1 times [2025-01-09 21:04:51,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:04:51,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844225801] [2025-01-09 21:04:51,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:04:51,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:04:51,965 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-01-09 21:04:51,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-01-09 21:04:51,982 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:04:51,982 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:04:52,105 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 21:04:52,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:04:52,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844225801] [2025-01-09 21:04:52,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844225801] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:04:52,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:04:52,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 21:04:52,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233847462] [2025-01-09 21:04:52,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:04:52,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:04:52,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:04:52,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:04:52,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:04:52,160 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 495 [2025-01-09 21:04:52,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 495 transitions, 1030 flow. Second operand has 3 states, 3 states have (on average 434.0) internal successors, (1302), 3 states have internal predecessors, (1302), 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 21:04:52,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:04:52,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 495 [2025-01-09 21:04:52,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:04:54,390 INFO L124 PetriNetUnfolderBase]: 1058/9130 cut-off events. [2025-01-09 21:04:54,390 INFO L125 PetriNetUnfolderBase]: For 2096/2096 co-relation queries the response was YES. [2025-01-09 21:04:54,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10706 conditions, 9130 events. 1058/9130 cut-off events. For 2096/2096 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 97843 event pairs, 482 based on Foata normal form. 1889/9803 useless extension candidates. Maximal degree in co-relation 4318. Up to 762 conditions per place. [2025-01-09 21:04:54,559 INFO L140 encePairwiseOnDemand]: 451/495 looper letters, 24 selfloop transitions, 2 changer transitions 0/450 dead transitions. [2025-01-09 21:04:54,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 450 transitions, 1024 flow [2025-01-09 21:04:54,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:04:54,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:04:54,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1399 transitions. [2025-01-09 21:04:54,577 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9420875420875421 [2025-01-09 21:04:54,578 INFO L175 Difference]: Start difference. First operand has 461 places, 495 transitions, 1030 flow. Second operand 3 states and 1399 transitions. [2025-01-09 21:04:54,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 450 transitions, 1024 flow [2025-01-09 21:04:54,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 450 transitions, 1000 flow, removed 12 selfloop flow, removed 0 redundant places. [2025-01-09 21:04:54,597 INFO L231 Difference]: Finished difference. Result has 430 places, 442 transitions, 922 flow [2025-01-09 21:04:54,600 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=495, PETRI_DIFFERENCE_MINUEND_FLOW=910, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=441, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=922, PETRI_PLACES=430, PETRI_TRANSITIONS=442} [2025-01-09 21:04:54,604 INFO L279 CegarLoopForPetriNet]: 461 programPoint places, -31 predicate places. [2025-01-09 21:04:54,605 INFO L471 AbstractCegarLoop]: Abstraction has has 430 places, 442 transitions, 922 flow [2025-01-09 21:04:54,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 434.0) internal successors, (1302), 3 states have internal predecessors, (1302), 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 21:04:54,606 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:04:54,606 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:04:54,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 21:04:54,606 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-01-09 21:04:54,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:04:54,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1913782116, now seen corresponding path program 1 times [2025-01-09 21:04:54,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:04:54,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393761341] [2025-01-09 21:04:54,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:04:54,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:04:54,618 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-01-09 21:04:54,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-01-09 21:04:54,635 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:04:54,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:04:55,048 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 21:04:55,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:04:55,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393761341] [2025-01-09 21:04:55,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393761341] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:04:55,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:04:55,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:04:55,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056484353] [2025-01-09 21:04:55,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:04:55,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:04:55,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:04:55,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:04:55,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:04:55,885 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 427 out of 495 [2025-01-09 21:04:55,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 430 places, 442 transitions, 922 flow. Second operand has 6 states, 6 states have (on average 428.6666666666667) internal successors, (2572), 6 states have internal predecessors, (2572), 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 21:04:55,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:04:55,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 427 of 495 [2025-01-09 21:04:55,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:05:01,150 INFO L124 PetriNetUnfolderBase]: 2850/23298 cut-off events. [2025-01-09 21:05:01,150 INFO L125 PetriNetUnfolderBase]: For 1929/1929 co-relation queries the response was YES. [2025-01-09 21:05:01,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27514 conditions, 23298 events. 2850/23298 cut-off events. For 1929/1929 co-relation queries the response was YES. Maximal size of possible extension queue 429. Compared 306280 event pairs, 986 based on Foata normal form. 0/20125 useless extension candidates. Maximal degree in co-relation 12943. Up to 2330 conditions per place. [2025-01-09 21:05:01,660 INFO L140 encePairwiseOnDemand]: 484/495 looper letters, 38 selfloop transitions, 23 changer transitions 0/480 dead transitions. [2025-01-09 21:05:01,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 435 places, 480 transitions, 1205 flow [2025-01-09 21:05:01,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:05:01,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:05:01,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2622 transitions. [2025-01-09 21:05:01,671 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8828282828282829 [2025-01-09 21:05:01,671 INFO L175 Difference]: Start difference. First operand has 430 places, 442 transitions, 922 flow. Second operand 6 states and 2622 transitions. [2025-01-09 21:05:01,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 435 places, 480 transitions, 1205 flow [2025-01-09 21:05:01,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 480 transitions, 1202 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-09 21:05:01,682 INFO L231 Difference]: Finished difference. Result has 439 places, 464 transitions, 1082 flow [2025-01-09 21:05:01,683 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=495, PETRI_DIFFERENCE_MINUEND_FLOW=920, PETRI_DIFFERENCE_MINUEND_PLACES=429, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1082, PETRI_PLACES=439, PETRI_TRANSITIONS=464} [2025-01-09 21:05:01,685 INFO L279 CegarLoopForPetriNet]: 461 programPoint places, -22 predicate places. [2025-01-09 21:05:01,685 INFO L471 AbstractCegarLoop]: Abstraction has has 439 places, 464 transitions, 1082 flow [2025-01-09 21:05:01,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 428.6666666666667) internal successors, (2572), 6 states have internal predecessors, (2572), 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 21:05:01,686 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:05:01,687 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 5, 5, 1, 1, 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 21:05:01,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 21:05:01,689 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2025-01-09 21:05:01,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:05:01,689 INFO L85 PathProgramCache]: Analyzing trace with hash -601424662, now seen corresponding path program 1 times [2025-01-09 21:05:01,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:05:01,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813617291] [2025-01-09 21:05:01,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:05:01,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:05:01,702 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-01-09 21:05:01,710 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-01-09 21:05:01,711 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:05:01,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:05:01,711 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 21:05:01,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-01-09 21:05:01,724 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-01-09 21:05:01,724 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:05:01,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:05:01,737 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 21:05:01,738 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 21:05:01,738 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2025-01-09 21:05:01,738 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2025-01-09 21:05:01,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2025-01-09 21:05:01,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2025-01-09 21:05:01,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2025-01-09 21:05:01,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2025-01-09 21:05:01,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2025-01-09 21:05:01,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2025-01-09 21:05:01,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2025-01-09 21:05:01,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2025-01-09 21:05:01,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2025-01-09 21:05:01,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2025-01-09 21:05:01,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2025-01-09 21:05:01,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2025-01-09 21:05:01,739 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2025-01-09 21:05:01,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2025-01-09 21:05:01,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2025-01-09 21:05:01,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2025-01-09 21:05:01,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2025-01-09 21:05:01,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2025-01-09 21:05:01,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2025-01-09 21:05:01,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2025-01-09 21:05:01,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2025-01-09 21:05:01,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2025-01-09 21:05:01,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2025-01-09 21:05:01,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2025-01-09 21:05:01,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2025-01-09 21:05:01,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2025-01-09 21:05:01,740 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2025-01-09 21:05:01,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2025-01-09 21:05:01,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2025-01-09 21:05:01,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2025-01-09 21:05:01,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2025-01-09 21:05:01,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2025-01-09 21:05:01,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2025-01-09 21:05:01,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2025-01-09 21:05:01,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2025-01-09 21:05:01,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2025-01-09 21:05:01,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2025-01-09 21:05:01,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2025-01-09 21:05:01,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2025-01-09 21:05:01,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2025-01-09 21:05:01,741 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2025-01-09 21:05:01,742 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2025-01-09 21:05:01,742 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2025-01-09 21:05:01,742 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2025-01-09 21:05:01,742 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2025-01-09 21:05:01,742 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2025-01-09 21:05:01,743 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2025-01-09 21:05:01,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 21:05:01,743 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-01-09 21:05:01,743 WARN L246 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-09 21:05:01,743 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2025-01-09 21:05:01,854 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-01-09 21:05:01,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 547 places, 588 transitions, 1230 flow [2025-01-09 21:05:01,997 INFO L124 PetriNetUnfolderBase]: 54/640 cut-off events. [2025-01-09 21:05:01,997 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2025-01-09 21:05:02,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 674 conditions, 640 events. 54/640 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3144 event pairs, 0 based on Foata normal form. 0/531 useless extension candidates. Maximal degree in co-relation 561. Up to 7 conditions per place. [2025-01-09 21:05:02,009 INFO L82 GeneralOperation]: Start removeDead. Operand has 547 places, 588 transitions, 1230 flow [2025-01-09 21:05:02,017 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 547 places, 588 transitions, 1230 flow [2025-01-09 21:05:02,018 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:05:02,018 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;@73d95fd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:05:02,018 INFO L334 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2025-01-09 21:05:02,031 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:05:02,031 INFO L124 PetriNetUnfolderBase]: 4/167 cut-off events. [2025-01-09 21:05:02,031 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2025-01-09 21:05:02,031 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:05:02,031 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:05:02,032 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2025-01-09 21:05:02,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:05:02,032 INFO L85 PathProgramCache]: Analyzing trace with hash -491387214, now seen corresponding path program 1 times [2025-01-09 21:05:02,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:05:02,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914574965] [2025-01-09 21:05:02,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:05:02,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:05:02,042 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-01-09 21:05:02,047 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-01-09 21:05:02,047 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:05:02,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:05:02,094 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 21:05:02,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:05:02,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914574965] [2025-01-09 21:05:02,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914574965] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:05:02,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:05:02,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 21:05:02,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189300520] [2025-01-09 21:05:02,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:05:02,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:05:02,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:05:02,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:05:02,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:05:02,116 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 514 out of 588 [2025-01-09 21:05:02,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 547 places, 588 transitions, 1230 flow. Second operand has 3 states, 3 states have (on average 516.0) internal successors, (1548), 3 states have internal predecessors, (1548), 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 21:05:02,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:05:02,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 514 of 588 [2025-01-09 21:05:02,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:05:07,289 INFO L124 PetriNetUnfolderBase]: 2550/21142 cut-off events. [2025-01-09 21:05:07,289 INFO L125 PetriNetUnfolderBase]: For 6340/6340 co-relation queries the response was YES. [2025-01-09 21:05:07,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24879 conditions, 21142 events. 2550/21142 cut-off events. For 6340/6340 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 267532 event pairs, 1218 based on Foata normal form. 4859/23243 useless extension candidates. Maximal degree in co-relation 10647. Up to 1786 conditions per place. [2025-01-09 21:05:07,847 INFO L140 encePairwiseOnDemand]: 536/588 looper letters, 28 selfloop transitions, 2 changer transitions 0/535 dead transitions. [2025-01-09 21:05:07,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 509 places, 535 transitions, 1229 flow [2025-01-09 21:05:07,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:05:07,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:05:07,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2025-01-09 21:05:07,852 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9438775510204082 [2025-01-09 21:05:07,852 INFO L175 Difference]: Start difference. First operand has 547 places, 588 transitions, 1230 flow. Second operand 3 states and 1665 transitions. [2025-01-09 21:05:07,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 509 places, 535 transitions, 1229 flow [2025-01-09 21:05:07,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 509 places, 535 transitions, 1189 flow, removed 20 selfloop flow, removed 0 redundant places. [2025-01-09 21:05:07,862 INFO L231 Difference]: Finished difference. Result has 510 places, 525 transitions, 1094 flow [2025-01-09 21:05:07,863 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=1082, PETRI_DIFFERENCE_MINUEND_PLACES=507, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=524, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=522, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1094, PETRI_PLACES=510, PETRI_TRANSITIONS=525} [2025-01-09 21:05:07,863 INFO L279 CegarLoopForPetriNet]: 547 programPoint places, -37 predicate places. [2025-01-09 21:05:07,863 INFO L471 AbstractCegarLoop]: Abstraction has has 510 places, 525 transitions, 1094 flow [2025-01-09 21:05:07,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 516.0) internal successors, (1548), 3 states have internal predecessors, (1548), 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 21:05:07,864 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:05:07,864 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:05:07,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 21:05:07,865 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2025-01-09 21:05:07,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:05:07,865 INFO L85 PathProgramCache]: Analyzing trace with hash 425699924, now seen corresponding path program 1 times [2025-01-09 21:05:07,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:05:07,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163686601] [2025-01-09 21:05:07,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:05:07,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:05:07,877 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-01-09 21:05:07,883 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-01-09 21:05:07,883 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:05:07,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:05:08,120 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 21:05:08,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:05:08,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163686601] [2025-01-09 21:05:08,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163686601] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:05:08,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:05:08,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:05:08,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676354306] [2025-01-09 21:05:08,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:05:08,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:05:08,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:05:08,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:05:08,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:05:09,043 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 509 out of 588 [2025-01-09 21:05:09,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 510 places, 525 transitions, 1094 flow. Second operand has 6 states, 6 states have (on average 510.6666666666667) internal successors, (3064), 6 states have internal predecessors, (3064), 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 21:05:09,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:05:09,046 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 509 of 588 [2025-01-09 21:05:09,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:05:22,667 INFO L124 PetriNetUnfolderBase]: 6868/50336 cut-off events. [2025-01-09 21:05:22,667 INFO L125 PetriNetUnfolderBase]: For 4627/4627 co-relation queries the response was YES. [2025-01-09 21:05:23,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60130 conditions, 50336 events. 6868/50336 cut-off events. For 4627/4627 co-relation queries the response was YES. Maximal size of possible extension queue 790. Compared 737500 event pairs, 2654 based on Foata normal form. 0/43535 useless extension candidates. Maximal degree in co-relation 28359. Up to 5788 conditions per place. [2025-01-09 21:05:24,282 INFO L140 encePairwiseOnDemand]: 576/588 looper letters, 44 selfloop transitions, 27 changer transitions 0/571 dead transitions. [2025-01-09 21:05:24,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 515 places, 571 transitions, 1433 flow [2025-01-09 21:05:24,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:05:24,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:05:24,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3124 transitions. [2025-01-09 21:05:24,288 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8854875283446711 [2025-01-09 21:05:24,288 INFO L175 Difference]: Start difference. First operand has 510 places, 525 transitions, 1094 flow. Second operand 6 states and 3124 transitions. [2025-01-09 21:05:24,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 515 places, 571 transitions, 1433 flow [2025-01-09 21:05:24,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 514 places, 571 transitions, 1430 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-09 21:05:24,298 INFO L231 Difference]: Finished difference. Result has 519 places, 551 transitions, 1280 flow [2025-01-09 21:05:24,298 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=588, PETRI_DIFFERENCE_MINUEND_FLOW=1092, PETRI_DIFFERENCE_MINUEND_PLACES=509, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=525, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=513, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1280, PETRI_PLACES=519, PETRI_TRANSITIONS=551} [2025-01-09 21:05:24,299 INFO L279 CegarLoopForPetriNet]: 547 programPoint places, -28 predicate places. [2025-01-09 21:05:24,299 INFO L471 AbstractCegarLoop]: Abstraction has has 519 places, 551 transitions, 1280 flow [2025-01-09 21:05:24,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 510.6666666666667) internal successors, (3064), 6 states have internal predecessors, (3064), 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 21:05:24,300 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:05:24,301 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:05:24,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 21:05:24,301 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE (and 53 more)] === [2025-01-09 21:05:24,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:05:24,301 INFO L85 PathProgramCache]: Analyzing trace with hash -228186371, now seen corresponding path program 1 times [2025-01-09 21:05:24,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:05:24,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140925187] [2025-01-09 21:05:24,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:05:24,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:05:24,309 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-01-09 21:05:24,312 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-01-09 21:05:24,312 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:05:24,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:05:24,332 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 21:05:24,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:05:24,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140925187] [2025-01-09 21:05:24,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140925187] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:05:24,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:05:24,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 21:05:24,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645474257] [2025-01-09 21:05:24,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:05:24,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:05:24,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:05:24,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:05:24,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:05:24,353 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 514 out of 588 [2025-01-09 21:05:24,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 519 places, 551 transitions, 1280 flow. Second operand has 3 states, 3 states have (on average 516.3333333333334) internal successors, (1549), 3 states have internal predecessors, (1549), 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 21:05:24,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:05:24,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 514 of 588 [2025-01-09 21:05:24,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand