./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread/singleton.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread/singleton.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 6346bdbbbcc061ee75d47350028706e13f6c2c30639c308c7c0aecc3d7202d6c --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:12:52,015 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:12:52,058 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-04-29 11:12:52,061 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:12:52,061 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:12:52,081 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:12:52,081 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:12:52,082 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:12:52,082 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:12:52,082 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:12:52,083 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:12:52,084 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:12:52,084 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:12:52,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:12:52,085 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:12:52,085 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-29 11:12:52,085 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:12:52,085 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-29 11:12:52,085 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:12:52,085 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:12:52,085 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:12:52,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:12:52,085 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-04-29 11:12:52,086 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:12:52,086 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-29 11:12:52,086 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:12:52,086 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:12:52,086 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:12:52,086 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:12:52,086 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:12:52,087 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:12:52,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:12:52,087 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:12:52,087 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:12:52,087 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:12:52,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:12:52,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:12:52,087 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:12:52,087 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:12:52,087 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:12:52,087 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:12:52,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:12:52,088 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:12:52,088 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:12:52,088 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:12:52,088 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/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 -> 6346bdbbbcc061ee75d47350028706e13f6c2c30639c308c7c0aecc3d7202d6c [2025-04-29 11:12:52,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:12:52,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:12:52,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:12:52,306 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:12:52,306 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:12:52,308 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/singleton.c [2025-04-29 11:12:53,567 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c036cdf3d/0e2008849f724be5909cd5404b1141fe/FLAG924d7095c [2025-04-29 11:12:53,753 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:12:53,753 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/singleton.c [2025-04-29 11:12:53,759 WARN L117 ultiparseSymbolTable]: System include assert.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:12:53,759 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:12:53,759 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:12:53,759 WARN L117 ultiparseSymbolTable]: System include string.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:12:53,782 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c036cdf3d/0e2008849f724be5909cd5404b1141fe/FLAG924d7095c [2025-04-29 11:12:54,767 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c036cdf3d/0e2008849f724be5909cd5404b1141fe [2025-04-29 11:12:54,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:12:54,770 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:12:54,771 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:12:54,771 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:12:54,774 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:12:54,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:12:54" (1/1) ... [2025-04-29 11:12:54,775 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8b68f0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:54, skipping insertion in model container [2025-04-29 11:12:54,775 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:12:54" (1/1) ... [2025-04-29 11:12:54,787 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:12:54,946 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:12:54,953 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:12:54,981 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:12:54,991 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:12:54,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:54 WrapperNode [2025-04-29 11:12:54,992 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:12:54,993 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:12:54,993 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:12:54,993 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:12:54,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:54" (1/1) ... [2025-04-29 11:12:55,009 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:54" (1/1) ... [2025-04-29 11:12:55,022 INFO L138 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 29 [2025-04-29 11:12:55,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:12:55,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:12:55,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:12:55,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:12:55,028 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:54" (1/1) ... [2025-04-29 11:12:55,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:54" (1/1) ... [2025-04-29 11:12:55,032 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:54" (1/1) ... [2025-04-29 11:12:55,032 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:54" (1/1) ... [2025-04-29 11:12:55,040 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:54" (1/1) ... [2025-04-29 11:12:55,044 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:54" (1/1) ... [2025-04-29 11:12:55,045 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:54" (1/1) ... [2025-04-29 11:12:55,046 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:54" (1/1) ... [2025-04-29 11:12:55,047 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:54" (1/1) ... [2025-04-29 11:12:55,049 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:12:55,050 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:12:55,050 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:12:55,050 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:12:55,051 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:54" (1/1) ... [2025-04-29 11:12:55,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:12:55,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:12:55,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-29 11:12:55,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-29 11:12:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2025-04-29 11:12:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2025-04-29 11:12:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-29 11:12:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-29 11:12:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-29 11:12:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-29 11:12:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-29 11:12:55,100 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-29 11:12:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-29 11:12:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-29 11:12:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-29 11:12:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-29 11:12:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:12:55,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:12:55,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-29 11:12:55,102 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-29 11:12:55,166 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:12:55,167 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:12:55,329 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-29 11:12:55,329 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:12:55,365 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:12:55,365 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-29 11:12:55,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:12:55 BoogieIcfgContainer [2025-04-29 11:12:55,370 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:12:55,372 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:12:55,372 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:12:55,376 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:12:55,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:12:54" (1/3) ... [2025-04-29 11:12:55,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717c3064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:12:55, skipping insertion in model container [2025-04-29 11:12:55,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:12:54" (2/3) ... [2025-04-29 11:12:55,377 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717c3064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:12:55, skipping insertion in model container [2025-04-29 11:12:55,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:12:55" (3/3) ... [2025-04-29 11:12:55,378 INFO L128 eAbstractionObserver]: Analyzing ICFG singleton.c [2025-04-29 11:12:55,388 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:12:55,390 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG singleton.c that has 5 procedures, 104 locations, 100 edges, 1 initial locations, 0 loop locations, and 7 error locations. [2025-04-29 11:12:55,390 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-29 11:12:55,492 INFO L143 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2025-04-29 11:12:55,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 171 places, 161 transitions, 419 flow [2025-04-29 11:12:55,560 INFO L116 PetriNetUnfolderBase]: 6/117 cut-off events. [2025-04-29 11:12:55,562 INFO L117 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-04-29 11:12:55,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 117 events. 6/117 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 105. Up to 3 conditions per place. [2025-04-29 11:12:55,564 INFO L82 GeneralOperation]: Start removeDead. Operand has 171 places, 161 transitions, 419 flow [2025-04-29 11:12:55,567 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 116 places, 102 transitions, 255 flow [2025-04-29 11:12:55,572 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:12:55,579 INFO L340 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;@11ac9bcd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:12:55,580 INFO L341 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2025-04-29 11:12:55,590 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-29 11:12:55,592 INFO L116 PetriNetUnfolderBase]: 0/29 cut-off events. [2025-04-29 11:12:55,592 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-29 11:12:55,592 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:12:55,593 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] [2025-04-29 11:12:55,594 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 24 more)] === [2025-04-29 11:12:55,597 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:12:55,598 INFO L85 PathProgramCache]: Analyzing trace with hash -829273472, now seen corresponding path program 1 times [2025-04-29 11:12:55,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:12:55,603 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556359763] [2025-04-29 11:12:55,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:12:55,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:12:55,653 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-04-29 11:12:55,662 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-04-29 11:12:55,663 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:12:55,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:12:55,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:12:55,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:12:55,749 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556359763] [2025-04-29 11:12:55,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556359763] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:12:55,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:12:55,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:12:55,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136237121] [2025-04-29 11:12:55,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:12:55,756 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:12:55,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:12:55,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:12:55,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:12:55,797 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 163 [2025-04-29 11:12:55,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 102 transitions, 255 flow. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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) [2025-04-29 11:12:55,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:12:55,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 163 [2025-04-29 11:12:55,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:12:55,933 INFO L116 PetriNetUnfolderBase]: 67/248 cut-off events. [2025-04-29 11:12:55,933 INFO L117 PetriNetUnfolderBase]: For 66/66 co-relation queries the response was YES. [2025-04-29 11:12:55,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 444 conditions, 248 events. 67/248 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 726 event pairs, 51 based on Foata normal form. 0/221 useless extension candidates. Maximal degree in co-relation 413. Up to 120 conditions per place. [2025-04-29 11:12:55,938 INFO L140 encePairwiseOnDemand]: 152/163 looper letters, 24 selfloop transitions, 2 changer transitions 0/93 dead transitions. [2025-04-29 11:12:55,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 93 transitions, 289 flow [2025-04-29 11:12:55,940 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:12:55,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:12:55,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 371 transitions. [2025-04-29 11:12:55,952 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7586912065439673 [2025-04-29 11:12:55,953 INFO L175 Difference]: Start difference. First operand has 116 places, 102 transitions, 255 flow. Second operand 3 states and 371 transitions. [2025-04-29 11:12:55,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 93 transitions, 289 flow [2025-04-29 11:12:55,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 93 transitions, 255 flow, removed 0 selfloop flow, removed 12 redundant places. [2025-04-29 11:12:55,963 INFO L231 Difference]: Finished difference. Result has 97 places, 93 transitions, 207 flow [2025-04-29 11:12:55,965 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=207, PETRI_PLACES=97, PETRI_TRANSITIONS=93} [2025-04-29 11:12:55,968 INFO L279 CegarLoopForPetriNet]: 116 programPoint places, -19 predicate places. [2025-04-29 11:12:55,968 INFO L485 AbstractCegarLoop]: Abstraction has has 97 places, 93 transitions, 207 flow [2025-04-29 11:12:55,969 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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) [2025-04-29 11:12:55,969 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:12:55,969 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:12:55,970 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:12:55,970 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 24 more)] === [2025-04-29 11:12:55,970 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:12:55,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1392574848, now seen corresponding path program 1 times [2025-04-29 11:12:55,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:12:55,971 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431893627] [2025-04-29 11:12:55,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:12:55,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:12:55,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-04-29 11:12:56,014 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-04-29 11:12:56,016 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:12:56,016 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:12:56,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:12:56,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:12:56,119 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431893627] [2025-04-29 11:12:56,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431893627] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:12:56,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:12:56,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:12:56,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454850996] [2025-04-29 11:12:56,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:12:56,120 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:12:56,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:12:56,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:12:56,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:12:56,132 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 163 [2025-04-29 11:12:56,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 93 transitions, 207 flow. Second operand has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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) [2025-04-29 11:12:56,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:12:56,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 163 [2025-04-29 11:12:56,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:12:56,210 INFO L116 PetriNetUnfolderBase]: 67/253 cut-off events. [2025-04-29 11:12:56,210 INFO L117 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2025-04-29 11:12:56,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 253 events. 67/253 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 745 event pairs, 24 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 368. Up to 110 conditions per place. [2025-04-29 11:12:56,212 INFO L140 encePairwiseOnDemand]: 158/163 looper letters, 27 selfloop transitions, 4 changer transitions 0/99 dead transitions. [2025-04-29 11:12:56,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 99 transitions, 284 flow [2025-04-29 11:12:56,212 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:12:56,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:12:56,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 374 transitions. [2025-04-29 11:12:56,214 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7648261758691206 [2025-04-29 11:12:56,214 INFO L175 Difference]: Start difference. First operand has 97 places, 93 transitions, 207 flow. Second operand 3 states and 374 transitions. [2025-04-29 11:12:56,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 99 transitions, 284 flow [2025-04-29 11:12:56,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 99 transitions, 280 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-29 11:12:56,216 INFO L231 Difference]: Finished difference. Result has 97 places, 96 transitions, 229 flow [2025-04-29 11:12:56,216 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=229, PETRI_PLACES=97, PETRI_TRANSITIONS=96} [2025-04-29 11:12:56,217 INFO L279 CegarLoopForPetriNet]: 116 programPoint places, -19 predicate places. [2025-04-29 11:12:56,217 INFO L485 AbstractCegarLoop]: Abstraction has has 97 places, 96 transitions, 229 flow [2025-04-29 11:12:56,217 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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) [2025-04-29 11:12:56,217 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-29 11:12:56,217 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:12:56,217 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-29 11:12:56,218 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 24 more)] === [2025-04-29 11:12:56,218 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:12:56,218 INFO L85 PathProgramCache]: Analyzing trace with hash -2135251053, now seen corresponding path program 1 times [2025-04-29 11:12:56,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:12:56,218 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727558383] [2025-04-29 11:12:56,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:12:56,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:12:56,234 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-04-29 11:12:56,256 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-04-29 11:12:56,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:12:56,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:12:56,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:12:56,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:12:56,435 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727558383] [2025-04-29 11:12:56,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727558383] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:12:56,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:12:56,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:12:56,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307714756] [2025-04-29 11:12:56,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:12:56,436 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:12:56,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:12:56,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:12:56,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:12:56,450 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 163 [2025-04-29 11:12:56,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 96 transitions, 229 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2025-04-29 11:12:56,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-29 11:12:56,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 163 [2025-04-29 11:12:56,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-29 11:12:56,515 INFO L116 PetriNetUnfolderBase]: 67/252 cut-off events. [2025-04-29 11:12:56,515 INFO L117 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2025-04-29 11:12:56,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 467 conditions, 252 events. 67/252 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 744 event pairs, 35 based on Foata normal form. 1/227 useless extension candidates. Maximal degree in co-relation 442. Up to 119 conditions per place. [2025-04-29 11:12:56,516 INFO L140 encePairwiseOnDemand]: 161/163 looper letters, 0 selfloop transitions, 0 changer transitions 95/95 dead transitions. [2025-04-29 11:12:56,516 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 95 transitions, 283 flow [2025-04-29 11:12:56,518 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:12:56,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-29 11:12:56,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 364 transitions. [2025-04-29 11:12:56,522 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.7443762781186094 [2025-04-29 11:12:56,522 INFO L175 Difference]: Start difference. First operand has 97 places, 96 transitions, 229 flow. Second operand 3 states and 364 transitions. [2025-04-29 11:12:56,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 95 transitions, 283 flow [2025-04-29 11:12:56,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 95 transitions, 283 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-29 11:12:56,523 INFO L231 Difference]: Finished difference. Result has 98 places, 0 transitions, 0 flow [2025-04-29 11:12:56,523 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=98, PETRI_TRANSITIONS=0} [2025-04-29 11:12:56,524 INFO L279 CegarLoopForPetriNet]: 116 programPoint places, -18 predicate places. [2025-04-29 11:12:56,524 INFO L485 AbstractCegarLoop]: Abstraction has has 98 places, 0 transitions, 0 flow [2025-04-29 11:12:56,524 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 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) [2025-04-29 11:12:56,526 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 27 remaining) [2025-04-29 11:12:56,526 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 27 remaining) [2025-04-29 11:12:56,526 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 27 remaining) [2025-04-29 11:12:56,526 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread0Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 27 remaining) [2025-04-29 11:12:56,527 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 27 remaining) [2025-04-29 11:12:56,527 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2025-04-29 11:12:56,527 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (20 of 27 remaining) [2025-04-29 11:12:56,527 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2025-04-29 11:12:56,527 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2025-04-29 11:12:56,527 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2025-04-29 11:12:56,527 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2025-04-29 11:12:56,527 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2025-04-29 11:12:56,527 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 27 remaining) [2025-04-29 11:12:56,527 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork3Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 27 remaining) [2025-04-29 11:12:56,527 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork3Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 27 remaining) [2025-04-29 11:12:56,527 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork3Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 27 remaining) [2025-04-29 11:12:56,527 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork3Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 27 remaining) [2025-04-29 11:12:56,527 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork3Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 27 remaining) [2025-04-29 11:12:56,527 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2025-04-29 11:12:56,527 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (7 of 27 remaining) [2025-04-29 11:12:56,527 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2025-04-29 11:12:56,527 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2025-04-29 11:12:56,527 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2025-04-29 11:12:56,527 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2025-04-29 11:12:56,527 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2025-04-29 11:12:56,527 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2025-04-29 11:12:56,527 INFO L790 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2025-04-29 11:12:56,528 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-29 11:12:56,528 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-29 11:12:56,532 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-29 11:12:56,532 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:12:56,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:12:56 BasicIcfg [2025-04-29 11:12:56,537 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:12:56,537 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:12:56,537 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:12:56,537 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:12:56,538 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:12:55" (3/4) ... [2025-04-29 11:12:56,539 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-29 11:12:56,541 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread0 [2025-04-29 11:12:56,541 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-04-29 11:12:56,541 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-04-29 11:12:56,541 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-04-29 11:12:56,543 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-04-29 11:12:56,544 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-04-29 11:12:56,544 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-04-29 11:12:56,589 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-29 11:12:56,589 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-29 11:12:56,589 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:12:56,590 INFO L158 Benchmark]: Toolchain (without parser) took 1819.74ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 87.2MB in the end (delta: 26.5MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2025-04-29 11:12:56,590 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 121.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:12:56,590 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.80ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 99.5MB in the end (delta: 14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:12:56,591 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.59ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 98.1MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:12:56,592 INFO L158 Benchmark]: Boogie Preprocessor took 26.75ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 96.8MB in the end (delta: 910.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:12:56,592 INFO L158 Benchmark]: RCFGBuilder took 319.91ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 80.9MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-29 11:12:56,592 INFO L158 Benchmark]: TraceAbstraction took 1164.78ms. Allocated memory is still 142.6MB. Free memory was 80.4MB in the beginning and 92.7MB in the end (delta: -12.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:12:56,593 INFO L158 Benchmark]: Witness Printer took 52.01ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 87.2MB in the end (delta: 5.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:12:56,594 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 121.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.80ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 99.5MB in the end (delta: 14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.59ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 98.1MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.75ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 96.8MB in the end (delta: 910.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 319.91ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 80.9MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1164.78ms. Allocated memory is still 142.6MB. Free memory was 80.4MB in the beginning and 92.7MB in the end (delta: -12.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 52.01ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 87.2MB in the end (delta: 5.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 32]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 32]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 40]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 40]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 199 locations, 221 edges, 27 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 143 IncrementalHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 1 mSDtfsCounter, 143 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=255occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 197 NumberOfCodeBlocks, 197 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 194 ConstructedInterpolants, 0 QuantifiedInterpolants, 204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-29 11:12:56,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE