./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis SUFFICIENT --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ebd41074 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-23 15:46:04,282 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-23 15:46:04,383 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-01-23 15:46:04,388 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-23 15:46:04,388 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-23 15:46:04,414 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-23 15:46:04,415 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-23 15:46:04,415 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-23 15:46:04,415 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-23 15:46:04,415 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-23 15:46:04,415 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-23 15:46:04,415 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-23 15:46:04,415 INFO L153 SettingsManager]: * Use SBE=true [2025-01-23 15:46:04,415 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-23 15:46:04,416 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-23 15:46:04,416 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-23 15:46:04,416 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-23 15:46:04,416 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-23 15:46:04,416 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-23 15:46:04,416 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-23 15:46:04,416 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-23 15:46:04,416 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-23 15:46:04,416 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-23 15:46:04,416 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-23 15:46:04,416 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-23 15:46:04,416 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-23 15:46:04,416 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-23 15:46:04,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-23 15:46:04,417 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-23 15:46:04,417 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-23 15:46:04,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 15:46:04,417 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-23 15:46:04,417 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-23 15:46:04,417 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-23 15:46:04,417 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-23 15:46:04,417 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-23 15:46:04,417 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-23 15:46:04,417 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-23 15:46:04,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-23 15:46:04,420 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-23 15:46:04,420 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-23 15:46:04,420 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-23 15:46:04,420 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-23 15:46:04,420 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/UGemCutter-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 ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> SUFFICIENT [2025-01-23 15:46:04,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-23 15:46:04,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-23 15:46:04,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-23 15:46:04,757 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-23 15:46:04,758 INFO L274 PluginConnector]: CDTParser initialized [2025-01-23 15:46:04,759 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i [2025-01-23 15:46:06,037 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/51d0e3362/19f262677be243b29c16d418357c7263/FLAG459a5d975 [2025-01-23 15:46:06,328 INFO L384 CDTParser]: Found 1 translation units. [2025-01-23 15:46:06,328 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i [2025-01-23 15:46:06,346 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/51d0e3362/19f262677be243b29c16d418357c7263/FLAG459a5d975 [2025-01-23 15:46:06,617 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/51d0e3362/19f262677be243b29c16d418357c7263 [2025-01-23 15:46:06,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-23 15:46:06,620 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-23 15:46:06,622 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-23 15:46:06,622 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-23 15:46:06,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-23 15:46:06,625 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 03:46:06" (1/1) ... [2025-01-23 15:46:06,626 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7373facc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:06, skipping insertion in model container [2025-01-23 15:46:06,626 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 03:46:06" (1/1) ... [2025-01-23 15:46:06,653 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-23 15:46:06,887 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i[30893,30906] [2025-01-23 15:46:06,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 15:46:06,904 INFO L200 MainTranslator]: Completed pre-run [2025-01-23 15:46:07,030 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i[30893,30906] [2025-01-23 15:46:07,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 15:46:07,070 INFO L204 MainTranslator]: Completed translation [2025-01-23 15:46:07,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:07 WrapperNode [2025-01-23 15:46:07,072 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-23 15:46:07,073 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-23 15:46:07,073 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-23 15:46:07,073 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-23 15:46:07,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:07" (1/1) ... [2025-01-23 15:46:07,091 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:07" (1/1) ... [2025-01-23 15:46:07,113 INFO L138 Inliner]: procedures = 172, calls = 19, calls flagged for inlining = 5, calls inlined = 7, statements flattened = 99 [2025-01-23 15:46:07,115 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-23 15:46:07,115 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-23 15:46:07,115 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-23 15:46:07,115 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-23 15:46:07,120 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:07" (1/1) ... [2025-01-23 15:46:07,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:07" (1/1) ... [2025-01-23 15:46:07,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:07" (1/1) ... [2025-01-23 15:46:07,125 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:07" (1/1) ... [2025-01-23 15:46:07,134 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:07" (1/1) ... [2025-01-23 15:46:07,135 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:07" (1/1) ... [2025-01-23 15:46:07,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:07" (1/1) ... [2025-01-23 15:46:07,143 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:07" (1/1) ... [2025-01-23 15:46:07,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:07" (1/1) ... [2025-01-23 15:46:07,146 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-23 15:46:07,147 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-23 15:46:07,149 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-23 15:46:07,149 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-23 15:46:07,150 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:07" (1/1) ... [2025-01-23 15:46:07,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 15:46:07,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 15:46:07,183 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-23 15:46:07,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-23 15:46:07,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-23 15:46:07,212 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-01-23 15:46:07,212 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-01-23 15:46:07,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-23 15:46:07,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-23 15:46:07,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-23 15:46:07,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-23 15:46:07,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-23 15:46:07,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-23 15:46:07,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-23 15:46:07,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-23 15:46:07,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-23 15:46:07,214 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-23 15:46:07,350 INFO L234 CfgBuilder]: Building ICFG [2025-01-23 15:46:07,351 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-23 15:46:07,512 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-23 15:46:07,513 INFO L283 CfgBuilder]: Performing block encoding [2025-01-23 15:46:07,637 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-01-23 15:46:07,644 INFO L158 Benchmark]: Toolchain (without parser) took 1021.17ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 42.5MB in the end (delta: 48.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-01-23 15:46:07,645 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory is still 45.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 15:46:07,645 INFO L158 Benchmark]: CACSL2BoogieTranslator took 450.54ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 70.0MB in the end (delta: 21.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-23 15:46:07,646 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.24ms. Allocated memory is still 117.4MB. Free memory was 70.0MB in the beginning and 68.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 15:46:07,646 INFO L158 Benchmark]: Boogie Preprocessor took 30.54ms. Allocated memory is still 117.4MB. Free memory was 68.3MB in the beginning and 67.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 15:46:07,646 INFO L158 Benchmark]: RCFGBuilder took 494.07ms. Allocated memory is still 117.4MB. Free memory was 67.0MB in the beginning and 42.5MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-23 15:46:07,648 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory is still 45.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 450.54ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 70.0MB in the end (delta: 21.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.24ms. Allocated memory is still 117.4MB. Free memory was 70.0MB in the beginning and 68.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.54ms. Allocated memory is still 117.4MB. Free memory was 68.3MB in the beginning and 67.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 494.07ms. Allocated memory is still 117.4MB. Free memory was 67.0MB in the beginning and 42.5MB in the end (delta: 24.4MB). 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. [2025-01-23 15:46:07,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 --traceabstraction.use.conditional.por.in.concurrent.analysis true --traceabstraction.commutativity.condition.synthesis SUFFICIENT --- Real Ultimate output --- This is Ultimate 0.3.0-dev-ebd4107-m [2025-01-23 15:46:09,796 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-23 15:46:09,896 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2025-01-23 15:46:09,901 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-23 15:46:09,901 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-23 15:46:09,922 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-23 15:46:09,922 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-23 15:46:09,923 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-23 15:46:09,923 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-23 15:46:09,923 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-23 15:46:09,924 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-23 15:46:09,924 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-23 15:46:09,925 INFO L153 SettingsManager]: * Use SBE=true [2025-01-23 15:46:09,925 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-23 15:46:09,925 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-23 15:46:09,925 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-23 15:46:09,925 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-23 15:46:09,926 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-23 15:46:09,926 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-23 15:46:09,926 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-23 15:46:09,926 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-23 15:46:09,926 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-23 15:46:09,926 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-23 15:46:09,926 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-23 15:46:09,926 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-23 15:46:09,926 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-23 15:46:09,926 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-23 15:46:09,926 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-23 15:46:09,926 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-23 15:46:09,926 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-23 15:46:09,927 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-23 15:46:09,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 15:46:09,927 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-23 15:46:09,927 INFO L153 SettingsManager]: * Refinement strategy for commutativity condition synthesis=FOX [2025-01-23 15:46:09,927 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-23 15:46:09,927 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-23 15:46:09,927 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-01-23 15:46:09,927 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-23 15:46:09,927 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-23 15:46:09,927 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-01-23 15:46:09,927 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-23 15:46:09,927 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-23 15:46:09,927 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-01-23 15:46:09,927 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-01-23 15:46:09,927 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-01-23 15:46:09,927 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/UGemCutter-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 ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use conditional POR in concurrent analysis -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> SUFFICIENT [2025-01-23 15:46:10,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-23 15:46:10,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-23 15:46:10,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-23 15:46:10,248 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-23 15:46:10,248 INFO L274 PluginConnector]: CDTParser initialized [2025-01-23 15:46:10,249 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i [2025-01-23 15:46:11,574 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/b45ee6b32/7e32b14f3aac4436b70aef89772b3d4e/FLAGd673fae56 [2025-01-23 15:46:11,881 INFO L384 CDTParser]: Found 1 translation units. [2025-01-23 15:46:11,881 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i [2025-01-23 15:46:11,897 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/b45ee6b32/7e32b14f3aac4436b70aef89772b3d4e/FLAGd673fae56 [2025-01-23 15:46:11,913 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/data/b45ee6b32/7e32b14f3aac4436b70aef89772b3d4e [2025-01-23 15:46:11,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-23 15:46:11,919 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-23 15:46:11,920 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-23 15:46:11,920 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-23 15:46:11,924 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-23 15:46:11,925 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 03:46:11" (1/1) ... [2025-01-23 15:46:11,926 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@748df913 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:11, skipping insertion in model container [2025-01-23 15:46:11,926 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.01 03:46:11" (1/1) ... [2025-01-23 15:46:11,964 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-23 15:46:12,231 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i[30893,30906] [2025-01-23 15:46:12,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 15:46:12,247 INFO L200 MainTranslator]: Completed pre-run [2025-01-23 15:46:12,332 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i[30893,30906] [2025-01-23 15:46:12,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-23 15:46:12,380 INFO L204 MainTranslator]: Completed translation [2025-01-23 15:46:12,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:12 WrapperNode [2025-01-23 15:46:12,383 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-23 15:46:12,384 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-23 15:46:12,384 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-23 15:46:12,384 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-23 15:46:12,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:12" (1/1) ... [2025-01-23 15:46:12,401 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:12" (1/1) ... [2025-01-23 15:46:12,419 INFO L138 Inliner]: procedures = 175, calls = 19, calls flagged for inlining = 5, calls inlined = 7, statements flattened = 99 [2025-01-23 15:46:12,419 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-23 15:46:12,420 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-23 15:46:12,420 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-23 15:46:12,420 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-23 15:46:12,425 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:12" (1/1) ... [2025-01-23 15:46:12,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:12" (1/1) ... [2025-01-23 15:46:12,432 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:12" (1/1) ... [2025-01-23 15:46:12,432 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:12" (1/1) ... [2025-01-23 15:46:12,439 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:12" (1/1) ... [2025-01-23 15:46:12,440 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:12" (1/1) ... [2025-01-23 15:46:12,443 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:12" (1/1) ... [2025-01-23 15:46:12,444 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:12" (1/1) ... [2025-01-23 15:46:12,445 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:12" (1/1) ... [2025-01-23 15:46:12,448 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-23 15:46:12,448 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-23 15:46:12,448 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-23 15:46:12,448 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-23 15:46:12,449 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.01 03:46:12" (1/1) ... [2025-01-23 15:46:12,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2025-01-23 15:46:12,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 [2025-01-23 15:46:12,476 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2025-01-23 15:46:12,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2025-01-23 15:46:12,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2025-01-23 15:46:12,500 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2025-01-23 15:46:12,500 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2025-01-23 15:46:12,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-01-23 15:46:12,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-23 15:46:12,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-23 15:46:12,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-23 15:46:12,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2025-01-23 15:46:12,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2025-01-23 15:46:12,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-01-23 15:46:12,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-23 15:46:12,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-23 15:46:12,501 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-23 15:46:12,609 INFO L234 CfgBuilder]: Building ICFG [2025-01-23 15:46:12,610 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-23 15:46:12,790 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-23 15:46:12,790 INFO L283 CfgBuilder]: Performing block encoding [2025-01-23 15:46:12,961 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-01-23 15:46:12,968 INFO L158 Benchmark]: Toolchain (without parser) took 1049.09ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 87.8MB in the end (delta: 4.0MB). Peak memory consumption was 63.7MB. Max. memory is 16.1GB. [2025-01-23 15:46:12,969 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory was 62.3MB in the beginning and 62.3MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 15:46:12,969 INFO L158 Benchmark]: CACSL2BoogieTranslator took 463.16ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 69.3MB in the end (delta: 22.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-23 15:46:12,969 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.48ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 67.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 15:46:12,971 INFO L158 Benchmark]: Boogie Preprocessor took 27.74ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 66.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-23 15:46:12,972 INFO L158 Benchmark]: RCFGBuilder took 518.47ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 87.8MB in the end (delta: -21.7MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2025-01-23 15:46:12,974 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory was 62.3MB in the beginning and 62.3MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 463.16ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 69.3MB in the end (delta: 22.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.48ms. Allocated memory is still 117.4MB. Free memory was 69.3MB in the beginning and 67.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.74ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 66.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 518.47ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 87.8MB in the end (delta: -21.7MB). 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. [2025-01-23 15:46:12,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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?