./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 f8ab0bd5 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 ../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i -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 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 --- Real Ultimate output --- This is Ultimate 0.3.0-?-f8ab0bd-m [2025-03-13 22:01:41,646 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-13 22:01:41,699 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-13 22:01:41,705 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-13 22:01:41,706 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-13 22:01:41,722 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-13 22:01:41,724 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-13 22:01:41,724 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-13 22:01:41,725 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-13 22:01:41,725 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-13 22:01:41,726 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-13 22:01:41,726 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-13 22:01:41,726 INFO L153 SettingsManager]: * Use SBE=true [2025-03-13 22:01:41,726 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-13 22:01:41,726 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-13 22:01:41,727 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-13 22:01:41,727 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-13 22:01:41,727 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-13 22:01:41,727 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-13 22:01:41,727 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-13 22:01:41,727 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-13 22:01:41,727 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-13 22:01:41,727 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-13 22:01:41,727 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-13 22:01:41,727 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-13 22:01:41,727 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-13 22:01:41,727 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-13 22:01:41,727 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-13 22:01:41,728 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-13 22:01:41,728 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-13 22:01:41,728 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-13 22:01:41,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:01:41,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-13 22:01:41,728 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-13 22:01:41,728 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-13 22:01:41,728 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-13 22:01:41,729 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-13 22:01:41,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-13 22:01:41,729 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-13 22:01:41,729 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-13 22:01:41,729 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-13 22:01:41,729 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-13 22:01:41,729 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 -> 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 [2025-03-13 22:01:41,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-13 22:01:41,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-13 22:01:41,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-13 22:01:41,937 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-13 22:01:41,938 INFO L274 PluginConnector]: CDTParser initialized [2025-03-13 22:01:41,938 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2025-03-13 22:01:43,056 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81c1207bf/384e41faac3d4ca7bb5bedd779f92058/FLAGc8ac94a97 [2025-03-13 22:01:43,339 INFO L384 CDTParser]: Found 1 translation units. [2025-03-13 22:01:43,340 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2025-03-13 22:01:43,349 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81c1207bf/384e41faac3d4ca7bb5bedd779f92058/FLAGc8ac94a97 [2025-03-13 22:01:43,628 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81c1207bf/384e41faac3d4ca7bb5bedd779f92058 [2025-03-13 22:01:43,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-13 22:01:43,633 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-13 22:01:43,635 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-13 22:01:43,636 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-13 22:01:43,639 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-13 22:01:43,640 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:01:43" (1/1) ... [2025-03-13 22:01:43,642 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9497a34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:43, skipping insertion in model container [2025-03-13 22:01:43,642 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:01:43" (1/1) ... [2025-03-13 22:01:43,670 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-13 22:01:43,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:01:43,905 INFO L200 MainTranslator]: Completed pre-run [2025-03-13 22:01:43,951 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:01:43,976 INFO L204 MainTranslator]: Completed translation [2025-03-13 22:01:43,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:43 WrapperNode [2025-03-13 22:01:43,977 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-13 22:01:43,978 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-13 22:01:43,978 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-13 22:01:43,978 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-13 22:01:43,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:43" (1/1) ... [2025-03-13 22:01:43,994 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:43" (1/1) ... [2025-03-13 22:01:44,011 INFO L138 Inliner]: procedures = 172, calls = 20, calls flagged for inlining = 6, calls inlined = 9, statements flattened = 183 [2025-03-13 22:01:44,011 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-13 22:01:44,012 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-13 22:01:44,012 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-13 22:01:44,012 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-13 22:01:44,017 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:43" (1/1) ... [2025-03-13 22:01:44,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:43" (1/1) ... [2025-03-13 22:01:44,019 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:43" (1/1) ... [2025-03-13 22:01:44,019 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:43" (1/1) ... [2025-03-13 22:01:44,031 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:43" (1/1) ... [2025-03-13 22:01:44,035 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:43" (1/1) ... [2025-03-13 22:01:44,038 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:43" (1/1) ... [2025-03-13 22:01:44,039 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:43" (1/1) ... [2025-03-13 22:01:44,043 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-13 22:01:44,044 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-13 22:01:44,044 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-13 22:01:44,044 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-13 22:01:44,045 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:43" (1/1) ... [2025-03-13 22:01:44,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:01:44,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:01:44,069 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) [2025-03-13 22:01:44,071 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 [2025-03-13 22:01:44,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-13 22:01:44,086 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-03-13 22:01:44,086 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-03-13 22:01:44,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-13 22:01:44,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-13 22:01:44,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-13 22:01:44,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-13 22:01:44,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-13 22:01:44,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-13 22:01:44,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-13 22:01:44,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-13 22:01:44,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-13 22:01:44,088 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-13 22:01:44,164 INFO L256 CfgBuilder]: Building ICFG [2025-03-13 22:01:44,165 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-13 22:01:44,339 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L716: havoc ~#l~0#1.base, ~#l~0#1.offset; [2025-03-13 22:01:44,340 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L716-1: SUMMARY for call ULTIMATE.dealloc(~#l~0#1.base, ~#l~0#1.offset); srcloc: null [2025-03-13 22:01:44,456 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L716: havoc thr1_~#l~0#1.base, thr1_~#l~0#1.offset; [2025-03-13 22:01:44,456 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L716-1: SUMMARY for call ULTIMATE.dealloc(thr1_~#l~0#1.base, thr1_~#l~0#1.offset); srcloc: null [2025-03-13 22:01:44,457 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-13 22:01:44,458 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-13 22:01:44,458 INFO L318 CfgBuilder]: Performing block encoding [2025-03-13 22:01:44,601 WARN L186 LargeBlockEncoding]: Complex 2:4 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-13 22:01:44,607 WARN L186 LargeBlockEncoding]: Complex 2:4 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-13 22:01:44,624 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: BeginParallelComposition{ParallelCodeBlock0: assume !(#t~mem6#1 % 4294967296 != ~s~0 % 4294967296);havoc #t~mem6#1;ParallelCodeBlock1: assume #t~mem6#1 % 4294967296 != ~s~0 % 4294967296;havoc #t~mem6#1;assume !true;}EndParallelComposition). 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:123) 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:334) 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) [2025-03-13 22:01:44,630 INFO L158 Benchmark]: Toolchain (without parser) took 995.92ms. Allocated memory is still 201.3MB. Free memory was 153.0MB in the beginning and 84.0MB in the end (delta: 69.0MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-03-13 22:01:44,630 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 118.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:01:44,630 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.46ms. Allocated memory is still 201.3MB. Free memory was 153.0MB in the beginning and 133.1MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-13 22:01:44,631 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.51ms. Allocated memory is still 201.3MB. Free memory was 133.1MB in the beginning and 131.0MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-13 22:01:44,631 INFO L158 Benchmark]: Boogie Preprocessor took 31.37ms. Allocated memory is still 201.3MB. Free memory was 131.0MB in the beginning and 129.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:01:44,632 INFO L158 Benchmark]: IcfgBuilder took 584.55ms. Allocated memory is still 201.3MB. Free memory was 129.5MB in the beginning and 84.0MB in the end (delta: 45.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-13 22:01:44,633 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 118.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.46ms. Allocated memory is still 201.3MB. Free memory was 153.0MB in the beginning and 133.1MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.51ms. Allocated memory is still 201.3MB. Free memory was 133.1MB in the beginning and 131.0MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.37ms. Allocated memory is still 201.3MB. Free memory was 131.0MB in the beginning and 129.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 584.55ms. Allocated memory is still 201.3MB. Free memory was 129.5MB in the beginning and 84.0MB in the end (delta: 45.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: BeginParallelComposition{ParallelCodeBlock0: assume !(#t~mem6#1 % 4294967296 != ~s~0 % 4294967296);havoc #t~mem6#1;ParallelCodeBlock1: assume #t~mem6#1 % 4294967296 != ~s~0 % 4294967296;havoc #t~mem6#1;assume !true;}EndParallelComposition). 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 end of atomic block: BeginParallelComposition{ParallelCodeBlock0: assume !(#t~mem6#1 % 4294967296 != ~s~0 % 4294967296);havoc #t~mem6#1;ParallelCodeBlock1: assume #t~mem6#1 % 4294967296 != ~s~0 % 4294967296;havoc #t~mem6#1;assume !true;}EndParallelComposition). 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:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2025-03-13 22:01:44,649 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 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/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 ../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Bitvector.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 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 --- Real Ultimate output --- This is Ultimate 0.3.0-?-f8ab0bd-m [2025-03-13 22:01:46,533 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-13 22:01:46,623 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Bitvector.epf [2025-03-13 22:01:46,629 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-13 22:01:46,630 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-13 22:01:46,652 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-13 22:01:46,653 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-13 22:01:46,653 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-13 22:01:46,653 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-13 22:01:46,653 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-13 22:01:46,654 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-13 22:01:46,654 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-13 22:01:46,654 INFO L153 SettingsManager]: * Use SBE=true [2025-03-13 22:01:46,655 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-13 22:01:46,655 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-13 22:01:46,655 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-13 22:01:46,655 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-13 22:01:46,655 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-13 22:01:46,655 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-13 22:01:46,655 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-13 22:01:46,656 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-13 22:01:46,656 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-13 22:01:46,656 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-13 22:01:46,656 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-13 22:01:46,656 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-13 22:01:46,656 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-13 22:01:46,656 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-13 22:01:46,656 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-13 22:01:46,657 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-13 22:01:46,657 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-13 22:01:46,657 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-13 22:01:46,657 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-13 22:01:46,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:01:46,657 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-13 22:01:46,657 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-13 22:01:46,658 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-13 22:01:46,658 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-13 22:01:46,658 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-13 22:01:46,658 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-13 22:01:46,658 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-13 22:01:46,658 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-13 22:01:46,658 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-13 22:01:46,658 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-13 22:01:46,658 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 -> 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 [2025-03-13 22:01:46,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-13 22:01:46,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-13 22:01:46,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-13 22:01:46,952 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-13 22:01:46,952 INFO L274 PluginConnector]: CDTParser initialized [2025-03-13 22:01:46,953 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2025-03-13 22:01:48,156 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/385c2a893/b542158dd9e94715a1e36bf340be28b9/FLAG8d9c4771d [2025-03-13 22:01:48,387 INFO L384 CDTParser]: Found 1 translation units. [2025-03-13 22:01:48,388 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2025-03-13 22:01:48,404 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/385c2a893/b542158dd9e94715a1e36bf340be28b9/FLAG8d9c4771d [2025-03-13 22:01:48,420 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/385c2a893/b542158dd9e94715a1e36bf340be28b9 [2025-03-13 22:01:48,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-13 22:01:48,424 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-13 22:01:48,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-13 22:01:48,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-13 22:01:48,429 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-13 22:01:48,430 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:01:48" (1/1) ... [2025-03-13 22:01:48,431 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@774b2116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:48, skipping insertion in model container [2025-03-13 22:01:48,431 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.03 10:01:48" (1/1) ... [2025-03-13 22:01:48,460 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-13 22:01:48,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:01:48,717 INFO L200 MainTranslator]: Completed pre-run [2025-03-13 22:01:48,763 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-13 22:01:48,792 INFO L204 MainTranslator]: Completed translation [2025-03-13 22:01:48,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:48 WrapperNode [2025-03-13 22:01:48,794 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-13 22:01:48,794 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-13 22:01:48,795 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-13 22:01:48,795 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-13 22:01:48,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:48" (1/1) ... [2025-03-13 22:01:48,815 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:48" (1/1) ... [2025-03-13 22:01:48,837 INFO L138 Inliner]: procedures = 175, calls = 20, calls flagged for inlining = 6, calls inlined = 9, statements flattened = 183 [2025-03-13 22:01:48,837 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-13 22:01:48,838 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-13 22:01:48,838 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-13 22:01:48,838 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-13 22:01:48,842 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:48" (1/1) ... [2025-03-13 22:01:48,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:48" (1/1) ... [2025-03-13 22:01:48,849 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:48" (1/1) ... [2025-03-13 22:01:48,849 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:48" (1/1) ... [2025-03-13 22:01:48,868 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:48" (1/1) ... [2025-03-13 22:01:48,869 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:48" (1/1) ... [2025-03-13 22:01:48,871 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:48" (1/1) ... [2025-03-13 22:01:48,872 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:48" (1/1) ... [2025-03-13 22:01:48,874 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-13 22:01:48,874 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-13 22:01:48,874 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-13 22:01:48,874 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-13 22:01:48,875 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.03 10:01:48" (1/1) ... [2025-03-13 22:01:48,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-13 22:01:48,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-13 22:01:48,901 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) [2025-03-13 22:01:48,903 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 [2025-03-13 22:01:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-03-13 22:01:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-03-13 22:01:48,923 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-03-13 22:01:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-13 22:01:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-13 22:01:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-13 22:01:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-13 22:01:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-03-13 22:01:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2025-03-13 22:01:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-13 22:01:48,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-13 22:01:48,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-13 22:01:48,924 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-13 22:01:49,022 INFO L256 CfgBuilder]: Building ICFG [2025-03-13 22:01:49,024 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-13 22:01:49,179 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L716: havoc ~#l~0#1.base, ~#l~0#1.offset; [2025-03-13 22:01:49,179 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L716-1: SUMMARY for call ULTIMATE.dealloc(~#l~0#1.base, ~#l~0#1.offset); srcloc: null [2025-03-13 22:01:49,313 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L716: havoc thr1_~#l~0#1.base, thr1_~#l~0#1.offset; [2025-03-13 22:01:49,313 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L716-1: SUMMARY for call ULTIMATE.dealloc(thr1_~#l~0#1.base, thr1_~#l~0#1.offset); srcloc: null [2025-03-13 22:01:49,314 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-13 22:01:49,315 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-13 22:01:49,315 INFO L318 CfgBuilder]: Performing block encoding [2025-03-13 22:01:49,521 WARN L186 LargeBlockEncoding]: Complex 2:4 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-13 22:01:49,529 WARN L186 LargeBlockEncoding]: Complex 2:4 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2025-03-13 22:01:49,537 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: BeginParallelComposition{ParallelCodeBlock0: assume !(#t~mem6#1 != ~s~0);havoc #t~mem6#1;ParallelCodeBlock1: assume #t~mem6#1 != ~s~0;havoc #t~mem6#1;assume !true;}EndParallelComposition). 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:123) 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:334) 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) [2025-03-13 22:01:49,542 INFO L158 Benchmark]: Toolchain (without parser) took 1117.08ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 53.9MB in the end (delta: 37.9MB). Peak memory consumption was 63.7MB. Max. memory is 16.1GB. [2025-03-13 22:01:49,542 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 83.9MB. Free memory was 62.4MB in the beginning and 62.4MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:01:49,542 INFO L158 Benchmark]: CACSL2BoogieTranslator took 368.86ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 71.0MB in the end (delta: 20.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-13 22:01:49,542 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.72ms. Allocated memory is still 117.4MB. Free memory was 71.0MB in the beginning and 68.6MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-13 22:01:49,544 INFO L158 Benchmark]: Boogie Preprocessor took 36.15ms. Allocated memory is still 117.4MB. Free memory was 68.6MB in the beginning and 66.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-13 22:01:49,545 INFO L158 Benchmark]: IcfgBuilder took 666.40ms. Allocated memory is still 117.4MB. Free memory was 66.8MB in the beginning and 53.9MB in the end (delta: 12.8MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2025-03-13 22:01:49,546 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 83.9MB. Free memory was 62.4MB in the beginning and 62.4MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 368.86ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 71.0MB in the end (delta: 20.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.72ms. Allocated memory is still 117.4MB. Free memory was 71.0MB in the beginning and 68.6MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.15ms. Allocated memory is still 117.4MB. Free memory was 68.6MB in the beginning and 66.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 666.40ms. Allocated memory is still 117.4MB. Free memory was 66.8MB in the beginning and 53.9MB in the end (delta: 12.8MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: BeginParallelComposition{ParallelCodeBlock0: assume !(#t~mem6#1 != ~s~0);havoc #t~mem6#1;ParallelCodeBlock1: assume #t~mem6#1 != ~s~0;havoc #t~mem6#1;assume !true;}EndParallelComposition). 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 end of atomic block: BeginParallelComposition{ParallelCodeBlock0: assume !(#t~mem6#1 != ~s~0);havoc #t~mem6#1;ParallelCodeBlock1: assume #t~mem6#1 != ~s~0;havoc #t~mem6#1;assume !true;}EndParallelComposition). 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:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2025-03-13 22:01:49,561 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: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling end of atomic block: BeginParallelComposition{ParallelCodeBlock0: assume !(#t~mem6#1 != ~s~0);havoc #t~mem6#1;ParallelCodeBlock1: assume #t~mem6#1 != ~s~0;havoc #t~mem6#1;assume !true;}EndParallelComposition). Is there illegal control flow (e.g. loops) within an atomic block?