./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.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-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 00:41:19,150 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 00:41:19,197 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-01-10 00:41:19,200 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 00:41:19,201 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 00:41:19,220 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 00:41:19,222 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 00:41:19,222 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 00:41:19,222 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 00:41:19,223 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 00:41:19,223 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 00:41:19,223 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 00:41:19,224 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 00:41:19,224 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 00:41:19,224 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 00:41:19,224 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 00:41:19,224 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 00:41:19,224 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 00:41:19,224 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 00:41:19,224 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 00:41:19,224 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 00:41:19,224 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 00:41:19,224 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 00:41:19,225 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 00:41:19,225 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 00:41:19,225 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 00:41:19,225 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 00:41:19,225 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 00:41:19,225 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 00:41:19,225 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 00:41:19,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:41:19,225 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:41:19,225 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:41:19,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:41:19,225 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 00:41:19,225 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:41:19,225 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:41:19,225 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:41:19,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:41:19,225 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 00:41:19,225 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 00:41:19,225 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 00:41:19,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 00:41:19,225 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 00:41:19,226 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 00:41:19,226 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 00:41:19,226 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 00:41:19,226 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 [2025-01-10 00:41:19,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 00:41:19,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 00:41:19,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 00:41:19,466 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 00:41:19,467 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 00:41:19,467 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2025-01-10 00:41:20,634 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/134acffba/13c215fc49a44ebab467566347a63e71/FLAG91dd84303 [2025-01-10 00:41:20,955 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 00:41:20,959 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2025-01-10 00:41:20,977 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/134acffba/13c215fc49a44ebab467566347a63e71/FLAG91dd84303 [2025-01-10 00:41:21,228 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/134acffba/13c215fc49a44ebab467566347a63e71 [2025-01-10 00:41:21,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 00:41:21,231 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 00:41:21,233 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 00:41:21,234 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 00:41:21,237 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 00:41:21,237 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:41:21" (1/1) ... [2025-01-10 00:41:21,239 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60cd8bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:21, skipping insertion in model container [2025-01-10 00:41:21,239 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:41:21" (1/1) ... [2025-01-10 00:41:21,264 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:41:21,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:41:21,505 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 00:41:21,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:41:21,557 INFO L204 MainTranslator]: Completed translation [2025-01-10 00:41:21,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:21 WrapperNode [2025-01-10 00:41:21,559 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 00:41:21,560 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 00:41:21,560 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 00:41:21,560 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 00:41:21,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:21" (1/1) ... [2025-01-10 00:41:21,578 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:21" (1/1) ... [2025-01-10 00:41:21,597 INFO L138 Inliner]: procedures = 172, calls = 20, calls flagged for inlining = 6, calls inlined = 9, statements flattened = 103 [2025-01-10 00:41:21,597 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 00:41:21,597 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 00:41:21,597 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 00:41:21,598 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 00:41:21,603 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:21" (1/1) ... [2025-01-10 00:41:21,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:21" (1/1) ... [2025-01-10 00:41:21,605 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:21" (1/1) ... [2025-01-10 00:41:21,620 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2025-01-10 00:41:21,621 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:21" (1/1) ... [2025-01-10 00:41:21,621 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:21" (1/1) ... [2025-01-10 00:41:21,630 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:21" (1/1) ... [2025-01-10 00:41:21,630 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:21" (1/1) ... [2025-01-10 00:41:21,637 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:21" (1/1) ... [2025-01-10 00:41:21,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:21" (1/1) ... [2025-01-10 00:41:21,639 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:21" (1/1) ... [2025-01-10 00:41:21,640 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 00:41:21,645 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 00:41:21,645 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 00:41:21,645 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 00:41:21,646 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:21" (1/1) ... [2025-01-10 00:41:21,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:41:21,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:41:21,674 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 00:41:21,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 00:41:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-10 00:41:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-10 00:41:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-10 00:41:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-01-10 00:41:21,697 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-01-10 00:41:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-10 00:41:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-10 00:41:21,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-10 00:41:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-10 00:41:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 00:41:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 00:41:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 00:41:21,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 00:41:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 00:41:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-10 00:41:21,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-10 00:41:21,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 00:41:21,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 00:41:21,701 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 00:41:21,812 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 00:41:21,814 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 00:41:22,019 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 00:41:22,020 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 00:41:22,137 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). 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.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-01-10 00:41:22,142 INFO L158 Benchmark]: Toolchain (without parser) took 910.13ms. Allocated memory is still 201.3MB. Free memory was 157.5MB in the beginning and 103.8MB in the end (delta: 53.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-01-10 00:41:22,142 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 218.1MB. Free memory is still 134.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:41:22,142 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.38ms. Allocated memory is still 201.3MB. Free memory was 157.1MB in the beginning and 137.8MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 00:41:22,143 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.05ms. Allocated memory is still 201.3MB. Free memory was 137.8MB in the beginning and 136.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:41:22,143 INFO L158 Benchmark]: Boogie Preprocessor took 42.63ms. Allocated memory is still 201.3MB. Free memory was 136.2MB in the beginning and 134.0MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 00:41:22,143 INFO L158 Benchmark]: RCFGBuilder took 496.07ms. Allocated memory is still 201.3MB. Free memory was 134.0MB in the beginning and 103.8MB in the end (delta: 30.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-10 00:41:22,145 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 218.1MB. Free memory is still 134.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.38ms. Allocated memory is still 201.3MB. Free memory was 157.1MB in the beginning and 137.8MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.05ms. Allocated memory is still 201.3MB. Free memory was 137.8MB in the beginning and 136.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.63ms. Allocated memory is still 201.3MB. Free memory was 136.2MB in the beginning and 134.0MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 496.07ms. Allocated memory is still 201.3MB. Free memory was 134.0MB in the beginning and 103.8MB in the end (delta: 30.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). 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. [2025-01-10 00:41:22,156 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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/AutomizerMemDerefMemtrack.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-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 00:41:24,365 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 00:41:24,476 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-01-10 00:41:24,480 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 00:41:24,480 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 00:41:24,495 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 00:41:24,496 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 00:41:24,496 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 00:41:24,496 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 00:41:24,496 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 00:41:24,496 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 00:41:24,496 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 00:41:24,497 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 00:41:24,497 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 00:41:24,497 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 00:41:24,497 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 00:41:24,497 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 00:41:24,497 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 00:41:24,497 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 00:41:24,497 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 00:41:24,497 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-10 00:41:24,497 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-10 00:41:24,497 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-10 00:41:24,497 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 00:41:24,497 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 00:41:24,497 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-10 00:41:24,497 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-10 00:41:24,497 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 00:41:24,498 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 00:41:24,498 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 00:41:24,498 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 00:41:24,498 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 00:41:24,498 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:41:24,498 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:41:24,498 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:41:24,498 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:41:24,498 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 00:41:24,498 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 00:41:24,498 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 00:41:24,498 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 00:41:24,498 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:41:24,498 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 00:41:24,498 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 00:41:24,499 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-10 00:41:24,499 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-10 00:41:24,499 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 00:41:24,499 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 00:41:24,499 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 00:41:24,499 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 00:41:24,499 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 [2025-01-10 00:41:24,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 00:41:24,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 00:41:24,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 00:41:24,780 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 00:41:24,780 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 00:41:24,781 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2025-01-10 00:41:25,959 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/962ffb97a/bd57b8ca657642dc9d1e88df7ac19170/FLAG76ec738e2 [2025-01-10 00:41:26,184 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 00:41:26,185 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2025-01-10 00:41:26,198 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/962ffb97a/bd57b8ca657642dc9d1e88df7ac19170/FLAG76ec738e2 [2025-01-10 00:41:26,213 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/962ffb97a/bd57b8ca657642dc9d1e88df7ac19170 [2025-01-10 00:41:26,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 00:41:26,218 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 00:41:26,220 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 00:41:26,220 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 00:41:26,223 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 00:41:26,224 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:41:26" (1/1) ... [2025-01-10 00:41:26,225 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@118bd71e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:26, skipping insertion in model container [2025-01-10 00:41:26,225 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:41:26" (1/1) ... [2025-01-10 00:41:26,258 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 00:41:26,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:41:26,527 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 00:41:26,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 00:41:26,592 INFO L204 MainTranslator]: Completed translation [2025-01-10 00:41:26,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:26 WrapperNode [2025-01-10 00:41:26,594 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 00:41:26,595 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 00:41:26,595 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 00:41:26,595 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 00:41:26,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:26" (1/1) ... [2025-01-10 00:41:26,618 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:26" (1/1) ... [2025-01-10 00:41:26,635 INFO L138 Inliner]: procedures = 175, calls = 20, calls flagged for inlining = 6, calls inlined = 9, statements flattened = 103 [2025-01-10 00:41:26,636 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 00:41:26,637 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 00:41:26,637 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 00:41:26,637 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 00:41:26,643 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:26" (1/1) ... [2025-01-10 00:41:26,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:26" (1/1) ... [2025-01-10 00:41:26,646 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:26" (1/1) ... [2025-01-10 00:41:26,659 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2025-01-10 00:41:26,662 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:26" (1/1) ... [2025-01-10 00:41:26,663 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:26" (1/1) ... [2025-01-10 00:41:26,672 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:26" (1/1) ... [2025-01-10 00:41:26,677 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:26" (1/1) ... [2025-01-10 00:41:26,679 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:26" (1/1) ... [2025-01-10 00:41:26,680 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:26" (1/1) ... [2025-01-10 00:41:26,685 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:26" (1/1) ... [2025-01-10 00:41:26,687 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 00:41:26,687 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 00:41:26,687 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 00:41:26,688 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 00:41:26,688 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:41:26" (1/1) ... [2025-01-10 00:41:26,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 00:41:26,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 00:41:26,724 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 00:41:26,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 00:41:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-10 00:41:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-10 00:41:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-01-10 00:41:26,748 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-01-10 00:41:26,748 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-01-10 00:41:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-10 00:41:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 00:41:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 00:41:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 00:41:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-01-10 00:41:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-01-10 00:41:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-01-10 00:41:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-10 00:41:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-10 00:41:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-01-10 00:41:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-10 00:41:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 00:41:26,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 00:41:26,751 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 00:41:26,857 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 00:41:26,858 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 00:41:27,043 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 00:41:27,044 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 00:41:27,243 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). 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.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-01-10 00:41:27,251 INFO L158 Benchmark]: Toolchain (without parser) took 1033.54ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 81.6MB in the end (delta: 10.5MB). Peak memory consumption was 63.6MB. Max. memory is 16.1GB. [2025-01-10 00:41:27,252 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:41:27,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.54ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 71.5MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 00:41:27,252 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.57ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 69.8MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 00:41:27,252 INFO L158 Benchmark]: Boogie Preprocessor took 49.98ms. Allocated memory is still 117.4MB. Free memory was 69.8MB in the beginning and 67.5MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 00:41:27,255 INFO L158 Benchmark]: RCFGBuilder took 563.05ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 81.6MB in the end (delta: -14.1MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2025-01-10 00:41:27,256 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 374.54ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 71.5MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.57ms. Allocated memory is still 117.4MB. Free memory was 71.5MB in the beginning and 69.8MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.98ms. Allocated memory is still 117.4MB. Free memory was 69.8MB in the beginning and 67.5MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 563.05ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 81.6MB in the end (delta: -14.1MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). 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. [2025-01-10 00:41:27,271 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: ). Is there illegal control flow (e.g. loops) within an atomic block?