./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 48c9605d 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/48_ticket_lock_low_contention_vs.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 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:13:36,412 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:13:36,478 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-08 05:13:36,482 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:13:36,482 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:13:36,496 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:13:36,497 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:13:36,497 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:13:36,497 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:13:36,497 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:13:36,498 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:13:36,498 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:13:36,498 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:13:36,498 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:13:36,498 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:13:36,498 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:13:36,498 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 05:13:36,498 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:13:36,498 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:13:36,498 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:13:36,498 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:13:36,498 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:13:36,498 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:13:36,498 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:13:36,498 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:13:36,498 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:13:36,498 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:13:36,498 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:13:36,499 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:13:36,499 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:13:36,499 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:13:36,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:13:36,499 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:13:36,499 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:13:36,499 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:13:36,499 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:13:36,499 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 05:13:36,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 05:13:36,499 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:13:36,499 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:13:36,499 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:13:36,499 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:13:36,499 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 -> 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 [2025-02-08 05:13:36,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:13:36,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:13:36,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:13:36,752 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:13:36,752 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:13:36,753 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2025-02-08 05:13:38,014 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e2c5c48b2/a19ab3a3c3be43bd83afcdd352e58b31/FLAG41733960c [2025-02-08 05:13:38,307 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:13:38,308 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2025-02-08 05:13:38,320 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e2c5c48b2/a19ab3a3c3be43bd83afcdd352e58b31/FLAG41733960c [2025-02-08 05:13:38,580 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e2c5c48b2/a19ab3a3c3be43bd83afcdd352e58b31 [2025-02-08 05:13:38,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:13:38,586 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:13:38,587 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:13:38,587 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:13:38,590 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:13:38,590 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:13:38" (1/1) ... [2025-02-08 05:13:38,591 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1188793f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:38, skipping insertion in model container [2025-02-08 05:13:38,591 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:13:38" (1/1) ... [2025-02-08 05:13:38,607 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:13:38,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:13:38,786 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:13:38,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:13:38,845 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:13:38,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:38 WrapperNode [2025-02-08 05:13:38,846 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:13:38,847 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:13:38,847 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:13:38,847 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:13:38,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:38" (1/1) ... [2025-02-08 05:13:38,865 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:38" (1/1) ... [2025-02-08 05:13:38,887 INFO L138 Inliner]: procedures = 172, calls = 20, calls flagged for inlining = 6, calls inlined = 9, statements flattened = 183 [2025-02-08 05:13:38,887 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:13:38,888 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:13:38,888 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:13:38,888 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:13:38,892 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:38" (1/1) ... [2025-02-08 05:13:38,892 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:38" (1/1) ... [2025-02-08 05:13:38,896 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:38" (1/1) ... [2025-02-08 05:13:38,896 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:38" (1/1) ... [2025-02-08 05:13:38,905 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:38" (1/1) ... [2025-02-08 05:13:38,906 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:38" (1/1) ... [2025-02-08 05:13:38,907 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:38" (1/1) ... [2025-02-08 05:13:38,908 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:38" (1/1) ... [2025-02-08 05:13:38,909 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:13:38,911 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:13:38,912 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:13:38,912 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:13:38,913 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:38" (1/1) ... [2025-02-08 05:13:38,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:13:38,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:13:38,955 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) [2025-02-08 05:13:38,963 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 [2025-02-08 05:13:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-08 05:13:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-08 05:13:38,985 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-08 05:13:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-08 05:13:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 05:13:38,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:13:38,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 05:13:38,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 05:13:38,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-08 05:13:38,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 05:13:38,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:13:38,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:13:38,987 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 05:13:39,095 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:13:39,097 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:13:39,262 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L716: havoc ~#l~0#1.base, ~#l~0#1.offset; [2025-02-08 05:13:39,262 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L716-1: SUMMARY for call ULTIMATE.dealloc(~#l~0#1.base, ~#l~0#1.offset); srcloc: null [2025-02-08 05:13:39,383 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L716: havoc thr1_~#l~0#1.base, thr1_~#l~0#1.offset; [2025-02-08 05:13:39,383 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L716-1: SUMMARY for call ULTIMATE.dealloc(thr1_~#l~0#1.base, thr1_~#l~0#1.offset); srcloc: null [2025-02-08 05:13:39,384 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:13:39,384 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:13:39,561 WARN L170 LargeBlockEncoding]: Complex 2:4 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-02-08 05:13:39,567 WARN L170 LargeBlockEncoding]: Complex 2:5 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-02-08 05:13:39,593 WARN L170 LargeBlockEncoding]: Complex 2:4 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-02-08 05:13:39,622 WARN L170 LargeBlockEncoding]: Complex 2:5 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-02-08 05:13:39,651 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: assume true;call #t~mem6#1 := read~int(~#l~0#1.base, ~#l~0#1.offset, 4);#race := #race[~#l~0#1.base,~#l~0#1.offset := 0];#race := #race[~#l~0#1.base,1 + ~#l~0#1.offset := 0];#race := #race[~#l~0#1.base,2 + ~#l~0#1.offset := 0];#race := #race[~#l~0#1.base,3 + ~#l~0#1.offset := 0];assume ((0 == #race[~#l~0#1.base,~#l~0#1.offset] && 0 == #race[~#l~0#1.base,1 + ~#l~0#1.offset]) && 0 == #race[~#l~0#1.base,2 + ~#l~0#1.offset]) && 0 == #race[~#l~0#1.base,3 + ~#l~0#1.offset];#race~s~0 := 0;assume 0 == #race~s~0;assume #t~mem6#1 % 4294967296 != ~s~0 % 4294967296;havoc #t~mem6#1;assume true;call #t~mem6#1 := read~int(~#l~0#1.base, ~#l~0#1.offset, 4);#race := #race[~#l~0#1.base,~#l~0#1.offset := 0];#race := #race[~#l~0#1.base,1 + ~#l~0#1.offset := 0];#race := #race[~#l~0#1.base,2 + ~#l~0#1.offset := 0];#race := #race[~#l~0#1.base,3 + ~#l~0#1.offset := 0];assume ((0 == #race[~#l~0#1.base,~#l~0#1.offset] && 0 == #race[~#l~0#1.base,1 + ~#l~0#1.offset]) && 0 == #race[~#l~0#1.base,2 + ~#l~0#1.offset]) && 0 == #race[~#l~0#1.base,3 + ~#l~0#1.offset];#race~s~0 := 0;assume 0 == #race~s~0;). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.AtomicBlockAnalyzer.ensureAtomicCompositionComplete(AtomicBlockAnalyzer.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.AtomicBlockAnalyzer.ensureAtomicCompositionIsComplete(AtomicBlockAnalyzer.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.IcfgBuilderObserver.process(IcfgBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-02-08 05:13:39,657 INFO L158 Benchmark]: Toolchain (without parser) took 1070.75ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 103.0MB in the end (delta: 5.5MB). Peak memory consumption was 81.9MB. Max. memory is 16.1GB. [2025-02-08 05:13:39,658 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:13:39,658 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.59ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 89.0MB in the end (delta: 19.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-08 05:13:39,659 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.06ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 87.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:13:39,659 INFO L158 Benchmark]: Boogie Preprocessor took 22.61ms. Allocated memory is still 142.6MB. Free memory was 87.1MB in the beginning and 85.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:13:39,661 INFO L158 Benchmark]: IcfgBuilder took 745.40ms. Allocated memory is still 142.6MB. Free memory was 85.2MB in the beginning and 103.0MB in the end (delta: -17.8MB). Peak memory consumption was 56.8MB. Max. memory is 16.1GB. [2025-02-08 05:13:39,663 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.59ms. Allocated memory is still 142.6MB. Free memory was 108.4MB in the beginning and 89.0MB in the end (delta: 19.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.06ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 87.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.61ms. Allocated memory is still 142.6MB. Free memory was 87.1MB in the beginning and 85.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 745.40ms. Allocated memory is still 142.6MB. Free memory was 85.2MB in the beginning and 103.0MB in the end (delta: -17.8MB). Peak memory consumption was 56.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: assume true;call #t~mem6#1 := read~int(~#l~0#1.base, ~#l~0#1.offset, 4);#race := #race[~#l~0#1.base,~#l~0#1.offset := 0];#race := #race[~#l~0#1.base,1 + ~#l~0#1.offset := 0];#race := #race[~#l~0#1.base,2 + ~#l~0#1.offset := 0];#race := #race[~#l~0#1.base,3 + ~#l~0#1.offset := 0];assume ((0 == #race[~#l~0#1.base,~#l~0#1.offset] && 0 == #race[~#l~0#1.base,1 + ~#l~0#1.offset]) && 0 == #race[~#l~0#1.base,2 + ~#l~0#1.offset]) && 0 == #race[~#l~0#1.base,3 + ~#l~0#1.offset];#race~s~0 := 0;assume 0 == #race~s~0;assume #t~mem6#1 % 4294967296 != ~s~0 % 4294967296;havoc #t~mem6#1;assume true;call #t~mem6#1 := read~int(~#l~0#1.base, ~#l~0#1.offset, 4);#race := #race[~#l~0#1.base,~#l~0#1.offset := 0];#race := #race[~#l~0#1.base,1 + ~#l~0#1.offset := 0];#race := #race[~#l~0#1.base,2 + ~#l~0#1.offset := 0];#race := #race[~#l~0#1.base,3 + ~#l~0#1.offset := 0];assume ((0 == #race[~#l~0#1.base,~#l~0#1.offset] && 0 == #race[~#l~0#1.base,1 + ~#l~0#1.offset]) && 0 == #race[~#l~0#1.base,2 + ~#l~0#1.offset]) && 0 == #race[~#l~0#1.base,3 + ~#l~0#1.offset];#race~s~0 := 0;assume 0 == #race~s~0;). Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: assume true;call #t~mem6#1 := read~int(~#l~0#1.base, ~#l~0#1.offset, 4);#race := #race[~#l~0#1.base,~#l~0#1.offset := 0];#race := #race[~#l~0#1.base,1 + ~#l~0#1.offset := 0];#race := #race[~#l~0#1.base,2 + ~#l~0#1.offset := 0];#race := #race[~#l~0#1.base,3 + ~#l~0#1.offset := 0];assume ((0 == #race[~#l~0#1.base,~#l~0#1.offset] && 0 == #race[~#l~0#1.base,1 + ~#l~0#1.offset]) && 0 == #race[~#l~0#1.base,2 + ~#l~0#1.offset]) && 0 == #race[~#l~0#1.base,3 + ~#l~0#1.offset];#race~s~0 := 0;assume 0 == #race~s~0;assume #t~mem6#1 % 4294967296 != ~s~0 % 4294967296;havoc #t~mem6#1;assume true;call #t~mem6#1 := read~int(~#l~0#1.base, ~#l~0#1.offset, 4);#race := #race[~#l~0#1.base,~#l~0#1.offset := 0];#race := #race[~#l~0#1.base,1 + ~#l~0#1.offset := 0];#race := #race[~#l~0#1.base,2 + ~#l~0#1.offset := 0];#race := #race[~#l~0#1.base,3 + ~#l~0#1.offset := 0];assume ((0 == #race[~#l~0#1.base,~#l~0#1.offset] && 0 == #race[~#l~0#1.base,1 + ~#l~0#1.offset]) && 0 == #race[~#l~0#1.base,2 + ~#l~0#1.offset]) && 0 == #race[~#l~0#1.base,3 + ~#l~0#1.offset];#race~s~0 := 0;assume 0 == #race~s~0;). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.AtomicBlockAnalyzer.ensureAtomicCompositionComplete(AtomicBlockAnalyzer.java:146) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2025-02-08 05:13:39,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/48_ticket_lock_low_contention_vs.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Bitvector.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 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 05:13:41,703 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 05:13:41,813 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf [2025-02-08 05:13:41,821 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 05:13:41,821 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 05:13:41,842 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 05:13:41,842 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 05:13:41,842 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 05:13:41,843 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 05:13:41,843 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 05:13:41,844 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 05:13:41,844 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 05:13:41,844 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 05:13:41,844 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 05:13:41,845 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 05:13:41,845 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 05:13:41,845 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 05:13:41,845 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 05:13:41,845 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 05:13:41,845 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 05:13:41,845 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 05:13:41,845 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-08 05:13:41,845 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 05:13:41,845 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 05:13:41,846 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 05:13:41,846 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 05:13:41,846 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 05:13:41,846 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 05:13:41,846 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 05:13:41,846 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 05:13:41,846 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 05:13:41,846 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 05:13:41,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:13:41,847 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 05:13:41,847 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 05:13:41,847 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 05:13:41,847 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 05:13:41,847 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 05:13:41,847 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 05:13:41,847 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 05:13:41,847 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 05:13:41,847 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 05:13:41,847 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 05:13:41,848 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 -> 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 [2025-02-08 05:13:42,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 05:13:42,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 05:13:42,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 05:13:42,134 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 05:13:42,134 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 05:13:42,135 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2025-02-08 05:13:43,368 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/18baa1ba5/56e9ed3679634e67b2a3f2e79049bfc6/FLAGc84713a4a [2025-02-08 05:13:43,652 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 05:13:43,653 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2025-02-08 05:13:43,666 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/18baa1ba5/56e9ed3679634e67b2a3f2e79049bfc6/FLAGc84713a4a [2025-02-08 05:13:43,681 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/18baa1ba5/56e9ed3679634e67b2a3f2e79049bfc6 [2025-02-08 05:13:43,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 05:13:43,688 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 05:13:43,689 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 05:13:43,689 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 05:13:43,692 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 05:13:43,693 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:13:43" (1/1) ... [2025-02-08 05:13:43,694 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79610073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:43, skipping insertion in model container [2025-02-08 05:13:43,695 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 05:13:43" (1/1) ... [2025-02-08 05:13:43,726 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 05:13:43,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:13:43,991 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 05:13:44,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 05:13:44,072 INFO L204 MainTranslator]: Completed translation [2025-02-08 05:13:44,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:44 WrapperNode [2025-02-08 05:13:44,074 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 05:13:44,075 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 05:13:44,075 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 05:13:44,075 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 05:13:44,079 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:44" (1/1) ... [2025-02-08 05:13:44,094 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:44" (1/1) ... [2025-02-08 05:13:44,117 INFO L138 Inliner]: procedures = 175, calls = 20, calls flagged for inlining = 6, calls inlined = 9, statements flattened = 183 [2025-02-08 05:13:44,118 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 05:13:44,119 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 05:13:44,119 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 05:13:44,119 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 05:13:44,125 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:44" (1/1) ... [2025-02-08 05:13:44,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:44" (1/1) ... [2025-02-08 05:13:44,130 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:44" (1/1) ... [2025-02-08 05:13:44,130 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:44" (1/1) ... [2025-02-08 05:13:44,145 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:44" (1/1) ... [2025-02-08 05:13:44,149 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:44" (1/1) ... [2025-02-08 05:13:44,151 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:44" (1/1) ... [2025-02-08 05:13:44,156 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:44" (1/1) ... [2025-02-08 05:13:44,162 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 05:13:44,162 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 05:13:44,163 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 05:13:44,163 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 05:13:44,163 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 05:13:44" (1/1) ... [2025-02-08 05:13:44,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 05:13:44,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 05:13:44,192 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) [2025-02-08 05:13:44,195 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 [2025-02-08 05:13:44,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-02-08 05:13:44,214 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-02-08 05:13:44,214 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-02-08 05:13:44,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 05:13:44,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 05:13:44,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 05:13:44,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 05:13:44,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-02-08 05:13:44,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2025-02-08 05:13:44,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 05:13:44,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 05:13:44,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 05:13:44,215 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 05:13:44,314 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 05:13:44,316 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 05:13:44,470 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L716: havoc ~#l~0#1.base, ~#l~0#1.offset; [2025-02-08 05:13:44,470 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L716-1: SUMMARY for call ULTIMATE.dealloc(~#l~0#1.base, ~#l~0#1.offset); srcloc: null [2025-02-08 05:13:44,606 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L716: havoc thr1_~#l~0#1.base, thr1_~#l~0#1.offset; [2025-02-08 05:13:44,607 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L716-1: SUMMARY for call ULTIMATE.dealloc(thr1_~#l~0#1.base, thr1_~#l~0#1.offset); srcloc: null [2025-02-08 05:13:44,608 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 05:13:44,608 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 05:13:44,774 WARN L170 LargeBlockEncoding]: Complex 2:4 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-02-08 05:13:44,778 WARN L170 LargeBlockEncoding]: Complex 2:5 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-02-08 05:13:44,791 WARN L170 LargeBlockEncoding]: Complex 2:4 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-02-08 05:13:44,795 WARN L170 LargeBlockEncoding]: Complex 2:5 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-02-08 05:13:44,812 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: assume true;call #t~mem6#1 := read~intINTTYPE4(~#l~0#1.base, ~#l~0#1.offset, 4bv32);#race := #race[~#l~0#1.base,~#l~0#1.offset := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(1bv32, ~#l~0#1.offset) := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(2bv32, ~#l~0#1.offset) := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(3bv32, ~#l~0#1.offset) := 0bv1];assume ((0bv1 == #race[~#l~0#1.base,~#l~0#1.offset] && 0bv1 == #race[~#l~0#1.base,~bvadd~32(1bv32, ~#l~0#1.offset)]) && 0bv1 == #race[~#l~0#1.base,~bvadd~32(2bv32, ~#l~0#1.offset)]) && 0bv1 == #race[~#l~0#1.base,~bvadd~32(3bv32, ~#l~0#1.offset)];#race~s~0 := 0bv1;assume 0bv1 == #race~s~0;assume #t~mem6#1 != ~s~0;havoc #t~mem6#1;assume true;call #t~mem6#1 := read~intINTTYPE4(~#l~0#1.base, ~#l~0#1.offset, 4bv32);#race := #race[~#l~0#1.base,~#l~0#1.offset := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(1bv32, ~#l~0#1.offset) := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(2bv32, ~#l~0#1.offset) := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(3bv32, ~#l~0#1.offset) := 0bv1];assume ((0bv1 == #race[~#l~0#1.base,~#l~0#1.offset] && 0bv1 == #race[~#l~0#1.base,~bvadd~32(1bv32, ~#l~0#1.offset)]) && 0bv1 == #race[~#l~0#1.base,~bvadd~32(2bv32, ~#l~0#1.offset)]) && 0bv1 == #race[~#l~0#1.base,~bvadd~32(3bv32, ~#l~0#1.offset)];#race~s~0 := 0bv1;assume 0bv1 == #race~s~0;). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.AtomicBlockAnalyzer.ensureAtomicCompositionComplete(AtomicBlockAnalyzer.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.AtomicBlockAnalyzer.ensureAtomicCompositionIsComplete(AtomicBlockAnalyzer.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.IcfgBuilderObserver.process(IcfgBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-02-08 05:13:44,819 INFO L158 Benchmark]: Toolchain (without parser) took 1130.91ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 42.8MB in the end (delta: 48.5MB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. [2025-02-08 05:13:44,819 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 62.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:13:44,819 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.51ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 70.5MB in the end (delta: 20.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 05:13:44,822 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.92ms. Allocated memory is still 117.4MB. Free memory was 70.5MB in the beginning and 68.2MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 05:13:44,822 INFO L158 Benchmark]: Boogie Preprocessor took 42.93ms. Allocated memory is still 117.4MB. Free memory was 68.2MB in the beginning and 66.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 05:13:44,823 INFO L158 Benchmark]: IcfgBuilder took 655.27ms. Allocated memory is still 117.4MB. Free memory was 66.3MB in the beginning and 42.8MB in the end (delta: 23.5MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2025-02-08 05:13:44,824 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 62.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.51ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 70.5MB in the end (delta: 20.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.92ms. Allocated memory is still 117.4MB. Free memory was 70.5MB in the beginning and 68.2MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.93ms. Allocated memory is still 117.4MB. Free memory was 68.2MB in the beginning and 66.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 655.27ms. Allocated memory is still 117.4MB. Free memory was 66.3MB in the beginning and 42.8MB in the end (delta: 23.5MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: assume true;call #t~mem6#1 := read~intINTTYPE4(~#l~0#1.base, ~#l~0#1.offset, 4bv32);#race := #race[~#l~0#1.base,~#l~0#1.offset := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(1bv32, ~#l~0#1.offset) := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(2bv32, ~#l~0#1.offset) := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(3bv32, ~#l~0#1.offset) := 0bv1];assume ((0bv1 == #race[~#l~0#1.base,~#l~0#1.offset] && 0bv1 == #race[~#l~0#1.base,~bvadd~32(1bv32, ~#l~0#1.offset)]) && 0bv1 == #race[~#l~0#1.base,~bvadd~32(2bv32, ~#l~0#1.offset)]) && 0bv1 == #race[~#l~0#1.base,~bvadd~32(3bv32, ~#l~0#1.offset)];#race~s~0 := 0bv1;assume 0bv1 == #race~s~0;assume #t~mem6#1 != ~s~0;havoc #t~mem6#1;assume true;call #t~mem6#1 := read~intINTTYPE4(~#l~0#1.base, ~#l~0#1.offset, 4bv32);#race := #race[~#l~0#1.base,~#l~0#1.offset := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(1bv32, ~#l~0#1.offset) := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(2bv32, ~#l~0#1.offset) := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(3bv32, ~#l~0#1.offset) := 0bv1];assume ((0bv1 == #race[~#l~0#1.base,~#l~0#1.offset] && 0bv1 == #race[~#l~0#1.base,~bvadd~32(1bv32, ~#l~0#1.offset)]) && 0bv1 == #race[~#l~0#1.base,~bvadd~32(2bv32, ~#l~0#1.offset)]) && 0bv1 == #race[~#l~0#1.base,~bvadd~32(3bv32, ~#l~0#1.offset)];#race~s~0 := 0bv1;assume 0bv1 == #race~s~0;). Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: assume true;call #t~mem6#1 := read~intINTTYPE4(~#l~0#1.base, ~#l~0#1.offset, 4bv32);#race := #race[~#l~0#1.base,~#l~0#1.offset := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(1bv32, ~#l~0#1.offset) := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(2bv32, ~#l~0#1.offset) := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(3bv32, ~#l~0#1.offset) := 0bv1];assume ((0bv1 == #race[~#l~0#1.base,~#l~0#1.offset] && 0bv1 == #race[~#l~0#1.base,~bvadd~32(1bv32, ~#l~0#1.offset)]) && 0bv1 == #race[~#l~0#1.base,~bvadd~32(2bv32, ~#l~0#1.offset)]) && 0bv1 == #race[~#l~0#1.base,~bvadd~32(3bv32, ~#l~0#1.offset)];#race~s~0 := 0bv1;assume 0bv1 == #race~s~0;assume #t~mem6#1 != ~s~0;havoc #t~mem6#1;assume true;call #t~mem6#1 := read~intINTTYPE4(~#l~0#1.base, ~#l~0#1.offset, 4bv32);#race := #race[~#l~0#1.base,~#l~0#1.offset := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(1bv32, ~#l~0#1.offset) := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(2bv32, ~#l~0#1.offset) := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(3bv32, ~#l~0#1.offset) := 0bv1];assume ((0bv1 == #race[~#l~0#1.base,~#l~0#1.offset] && 0bv1 == #race[~#l~0#1.base,~bvadd~32(1bv32, ~#l~0#1.offset)]) && 0bv1 == #race[~#l~0#1.base,~bvadd~32(2bv32, ~#l~0#1.offset)]) && 0bv1 == #race[~#l~0#1.base,~bvadd~32(3bv32, ~#l~0#1.offset)];#race~s~0 := 0bv1;assume 0bv1 == #race~s~0;). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.AtomicBlockAnalyzer.ensureAtomicCompositionComplete(AtomicBlockAnalyzer.java:146) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2025-02-08 05:13:44,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: assume true;call #t~mem6#1 := read~intINTTYPE4(~#l~0#1.base, ~#l~0#1.offset, 4bv32);#race := #race[~#l~0#1.base,~#l~0#1.offset := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(1bv32, ~#l~0#1.offset) := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(2bv32, ~#l~0#1.offset) := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(3bv32, ~#l~0#1.offset) := 0bv1];assume ((0bv1 == #race[~#l~0#1.base,~#l~0#1.offset] && 0bv1 == #race[~#l~0#1.base,~bvadd~32(1bv32, ~#l~0#1.offset)]) && 0bv1 == #race[~#l~0#1.base,~bvadd~32(2bv32, ~#l~0#1.offset)]) && 0bv1 == #race[~#l~0#1.base,~bvadd~32(3bv32, ~#l~0#1.offset)];#race~s~0 := 0bv1;assume 0bv1 == #race~s~0;assume #t~mem6#1 != ~s~0;havoc #t~mem6#1;assume true;call #t~mem6#1 := read~intINTTYPE4(~#l~0#1.base, ~#l~0#1.offset, 4bv32);#race := #race[~#l~0#1.base,~#l~0#1.offset := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(1bv32, ~#l~0#1.offset) := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(2bv32, ~#l~0#1.offset) := 0bv1];#race := #race[~#l~0#1.base,~bvadd~32(3bv32, ~#l~0#1.offset) := 0bv1];assume ((0bv1 == #race[~#l~0#1.base,~#l~0#1.offset] && 0bv1 == #race[~#l~0#1.base,~bvadd~32(1bv32, ~#l~0#1.offset)]) && 0bv1 == #race[~#l~0#1.base,~bvadd~32(2bv32, ~#l~0#1.offset)]) && 0bv1 == #race[~#l~0#1.base,~bvadd~32(3bv32, ~#l~0#1.offset)];#race~s~0 := 0bv1;assume 0bv1 == #race~s~0;). Is there illegal control flow (e.g. loops) within an atomic block?