/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --icfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks false --rcfgbuilder.only.consider.context.switches.at.boundaries.of.atomic.blocks false --traceabstraction.dfs.order.used.in.por BY_SERIAL_NUMBER --traceabstraction.abstraction.used.for.commutativity.in.por VARIABLES_GLOBAL --traceabstraction.commutativity.condition.synthesis NONE -i ../../../trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-04aa6ae-m [2025-04-16 02:02:18,741 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-16 02:02:18,781 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-16 02:02:18,787 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-16 02:02:18,787 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-16 02:02:18,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-16 02:02:18,808 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-16 02:02:18,808 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-16 02:02:18,809 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-16 02:02:18,809 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-16 02:02:18,810 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-16 02:02:18,810 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-16 02:02:18,810 INFO L153 SettingsManager]: * Use SBE=true [2025-04-16 02:02:18,811 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-16 02:02:18,811 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-16 02:02:18,811 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-16 02:02:18,811 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-16 02:02:18,811 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-16 02:02:18,811 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-16 02:02:18,811 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-16 02:02:18,811 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-16 02:02:18,811 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-16 02:02:18,811 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-16 02:02:18,811 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-16 02:02:18,811 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-16 02:02:18,811 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-16 02:02:18,811 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-16 02:02:18,812 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-16 02:02:18,812 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-16 02:02:18,812 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-16 02:02:18,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-16 02:02:18,812 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-16 02:02:18,812 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-16 02:02:18,812 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-16 02:02:18,812 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-16 02:02:18,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-16 02:02:18,812 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-16 02:02:18,812 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-16 02:02:18,813 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-16 02:02:18,813 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-16 02:02:18,813 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-16 02:02:18,813 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-16 02:02:18,813 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-16 02:02:18,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-16 02:02:18,813 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-16 02:02:18,813 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-16 02:02:18,813 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-16 02:02:18,813 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Only consider context switches at boundaries of atomic blocks -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Only consider context switches at boundaries of atomic blocks -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> BY_SERIAL_NUMBER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR -> VARIABLES_GLOBAL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Commutativity condition synthesis -> NONE [2025-04-16 02:02:19,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-16 02:02:19,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-16 02:02:19,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-16 02:02:19,042 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-16 02:02:19,043 INFO L274 PluginConnector]: CDTParser initialized [2025-04-16 02:02:19,045 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i [2025-04-16 02:02:20,321 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93a4a572c/75e3b438f2424d6aa70aafbf00aa3a11/FLAGb99fcf651 [2025-04-16 02:02:20,625 INFO L389 CDTParser]: Found 1 translation units. [2025-04-16 02:02:20,625 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i [2025-04-16 02:02:20,649 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93a4a572c/75e3b438f2424d6aa70aafbf00aa3a11/FLAGb99fcf651 [2025-04-16 02:02:21,371 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93a4a572c/75e3b438f2424d6aa70aafbf00aa3a11 [2025-04-16 02:02:21,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-16 02:02:21,374 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-16 02:02:21,375 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-16 02:02:21,375 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-16 02:02:21,378 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-16 02:02:21,378 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 02:02:21" (1/1) ... [2025-04-16 02:02:21,379 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c270f84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:02:21, skipping insertion in model container [2025-04-16 02:02:21,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.04 02:02:21" (1/1) ... [2025-04-16 02:02:21,417 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-16 02:02:21,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-16 02:02:21,899 INFO L200 MainTranslator]: Completed pre-run [2025-04-16 02:02:21,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-16 02:02:22,062 INFO L204 MainTranslator]: Completed translation [2025-04-16 02:02:22,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:02:22 WrapperNode [2025-04-16 02:02:22,063 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-16 02:02:22,064 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-16 02:02:22,064 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-16 02:02:22,064 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-16 02:02:22,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:02:22" (1/1) ... [2025-04-16 02:02:22,090 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:02:22" (1/1) ... [2025-04-16 02:02:22,227 INFO L138 Inliner]: procedures = 491, calls = 159, calls flagged for inlining = 48, calls inlined = 122, statements flattened = 3332 [2025-04-16 02:02:22,228 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-16 02:02:22,229 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-16 02:02:22,229 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-16 02:02:22,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-16 02:02:22,234 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:02:22" (1/1) ... [2025-04-16 02:02:22,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:02:22" (1/1) ... [2025-04-16 02:02:22,279 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:02:22" (1/1) ... [2025-04-16 02:02:22,281 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:02:22" (1/1) ... [2025-04-16 02:02:22,365 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:02:22" (1/1) ... [2025-04-16 02:02:22,377 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:02:22" (1/1) ... [2025-04-16 02:02:22,386 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:02:22" (1/1) ... [2025-04-16 02:02:22,404 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:02:22" (1/1) ... [2025-04-16 02:02:22,421 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:02:22" (1/1) ... [2025-04-16 02:02:22,450 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-16 02:02:22,451 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-16 02:02:22,451 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-16 02:02:22,451 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-16 02:02:22,452 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.04 02:02:22" (1/1) ... [2025-04-16 02:02:22,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-16 02:02:22,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-16 02:02:22,475 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-16 02:02:22,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-16 02:02:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2025-04-16 02:02:22,493 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2025-04-16 02:02:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-16 02:02:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-16 02:02:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-16 02:02:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-16 02:02:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-04-16 02:02:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-16 02:02:22,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-04-16 02:02:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-16 02:02:22,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-16 02:02:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-16 02:02:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-04-16 02:02:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-04-16 02:02:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-04-16 02:02:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-16 02:02:22,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-16 02:02:22,497 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-16 02:02:22,775 INFO L234 CfgBuilder]: Building ICFG [2025-04-16 02:02:22,777 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-16 02:02:25,473 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-16 02:02:25,474 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-16 02:02:25,474 INFO L294 CfgBuilder]: Performing block encoding [2025-04-16 02:02:26,554 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: BeginParallelComposition{ParallelCodeBlock0: call atomic_compare_exchange_strong_#t~mem38#1 := read~int(atomic_compare_exchange_strong_~obj#1.base, atomic_compare_exchange_strong_~obj#1.offset, 4);#race := #race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset := 0];assume ((0 == #race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset] && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset];call atomic_compare_exchange_strong_#t~mem39#1 := read~int(atomic_compare_exchange_strong_~expected#1.base, atomic_compare_exchange_strong_~expected#1.offset, 4);#race := #race[atomic_compare_exchange_strong_~expected#1.base,atomic_compare_exchange_strong_~expected#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~expected#1.base,1 + atomic_compare_exchange_strong_~expected#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~expected#1.base,2 + atomic_compare_exchange_strong_~expected#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~expected#1.base,3 + atomic_compare_exchange_strong_~expected#1.offset := 0];assume ((0 == #race[atomic_compare_exchange_strong_~expected#1.base,atomic_compare_exchange_strong_~expected#1.offset] && 0 == #race[atomic_compare_exchange_strong_~expected#1.base,1 + atomic_compare_exchange_strong_~expected#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~expected#1.base,2 + atomic_compare_exchange_strong_~expected#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~expected#1.base,3 + atomic_compare_exchange_strong_~expected#1.offset];assume atomic_compare_exchange_strong_#t~mem38#1 == atomic_compare_exchange_strong_#t~mem39#1;havoc atomic_compare_exchange_strong_#t~mem38#1;havoc atomic_compare_exchange_strong_#t~mem39#1;call write~int(atomic_compare_exchange_strong_~desired#1, atomic_compare_exchange_strong_~obj#1.base, atomic_compare_exchange_strong_~obj#1.offset, 4);havoc atomic_compare_exchange_strong_#t~nondet40#1;#race := #race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset := atomic_compare_exchange_strong_#t~nondet40#1];#race := #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset := atomic_compare_exchange_strong_#t~nondet40#1];#race := #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset := atomic_compare_exchange_strong_#t~nondet40#1];#race := #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset := atomic_compare_exchange_strong_#t~nondet40#1];assume ((#race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset] == atomic_compare_exchange_strong_#t~nondet40#1 && #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset] == atomic_compare_exchange_strong_#t~nondet40#1) && #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset] == atomic_compare_exchange_strong_#t~nondet40#1) && #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset] == atomic_compare_exchange_strong_#t~nondet40#1;havoc atomic_compare_exchange_strong_#t~nondet40#1;atomic_compare_exchange_strong_~ret~0#1 := 1;ParallelCodeBlock1: call atomic_compare_exchange_strong_#t~mem38#1 := read~int(atomic_compare_exchange_strong_~obj#1.base, atomic_compare_exchange_strong_~obj#1.offset, 4);#race := #race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset := 0];assume ((0 == #race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset] && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset];call atomic_compare_exchange_strong_#t~mem39#1 := read~int(atomic_compare_exchange_strong_~expected#1.base, atomic_compare_exchange_strong_~expected#1.offset, 4);#race := #race[atomic_compare_exchange_strong_~expected#1.base,atomic_compare_exchange_strong_~expected#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~expected#1.base,1 + atomic_compare_exchange_strong_~expected#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~expected#1.base,2 + atomic_compare_exchange_strong_~expected#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~expected#1.base,3 + atomic_compare_exchange_strong_~expected#1.offset := 0];assume ((0 == #race[atomic_compare_exchange_strong_~expected#1.base,atomic_compare_exchange_strong_~expected#1.offset] && 0 == #race[atomic_compare_exchange_strong_~expected#1.base,1 + atomic_compare_exchange_strong_~expected#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~expected#1.base,2 + atomic_compare_exchange_strong_~expected#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~expected#1.base,3 + atomic_compare_exchange_strong_~expected#1.offset];assume !(atomic_compare_exchange_strong_#t~mem38#1 == atomic_compare_exchange_strong_#t~mem39#1);havoc atomic_compare_exchange_strong_#t~mem38#1;havoc atomic_compare_exchange_strong_#t~mem39#1;call atomic_compare_exchange_strong_#t~mem41#1 := read~int(atomic_compare_exchange_strong_~obj#1.base, atomic_compare_exchange_strong_~obj#1.offset, 4);#race := #race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset := 0];assume ((0 == #race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset] && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset];call write~int(atomic_compare_exchange_strong_#t~mem41#1, atomic_compare_exchange_strong_~expected#1.base, atomic_compare_exchange_strong_~expected#1.offset, 4);havoc atomic_compare_exchange_strong_#t~nondet42#1;#race := #race[atomic_compare_exchange_strong_~expected#1.base,atomic_compare_exchange_strong_~expected#1.offset := atomic_compare_exchange_strong_#t~nondet42#1];#race := #race[atomic_compare_exchange_strong_~expected#1.base,1 + atomic_compare_exchange_strong_~expected#1.offset := atomic_compare_exchange_strong_#t~nondet42#1];#race := #race[atomic_compare_exchange_strong_~expected#1.base,2 + atomic_compare_exchange_strong_~expected#1.offset := atomic_compare_exchange_strong_#t~nondet42#1];#race := #race[atomic_compare_exchange_strong_~expected#1.base,3 + atomic_compare_exchange_strong_~expected#1.offset := atomic_compare_exchange_strong_#t~nondet42#1];assume ((#race[atomic_compare_exchange_strong_~expected#1.base,atomic_compare_exchange_strong_~expected#1.offset] == atomic_compare_exchange_strong_#t~nondet42#1 && #race[atomic_compare_exchange_strong_~expected#1.base,1 + atomic_compare_exchange_strong_~expected#1.offset] == atomic_compare_exchange_strong_#t~nondet42#1) && #race[atomic_compare_exchange_strong_~expected#1.base,2 + atomic_compare_exchange_strong_~expected#1.offset] == atomic_compare_exchange_strong_#t~nondet42#1) && #race[atomic_compare_exchange_strong_~expected#1.base,3 + atomic_compare_exchange_strong_~expected#1.offset] == atomic_compare_exchange_strong_#t~nondet42#1;havoc atomic_compare_exchange_strong_#t~mem41#1;havoc atomic_compare_exchange_strong_#t~nondet42#1;atomic_compare_exchange_strong_~ret~0#1 := 0;}EndParallelComposition). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.AtomicBlockAnalyzer.ensureAtomicCompositionComplete(AtomicBlockAnalyzer.java: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:310) 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2025-04-16 02:02:26,559 INFO L158 Benchmark]: Toolchain (without parser) took 5184.50ms. Allocated memory was 142.6MB in the beginning and 323.0MB in the end (delta: 180.4MB). Free memory was 97.4MB in the beginning and 108.0MB in the end (delta: -10.5MB). Peak memory consumption was 257.9MB. Max. memory is 8.0GB. [2025-04-16 02:02:26,559 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 159.4MB. Free memory is still 85.8MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-16 02:02:26,559 INFO L158 Benchmark]: CACSL2BoogieTranslator took 688.24ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 31.9MB in the end (delta: 65.3MB). Peak memory consumption was 67.1MB. Max. memory is 8.0GB. [2025-04-16 02:02:26,560 INFO L158 Benchmark]: Boogie Procedure Inliner took 164.62ms. Allocated memory is still 142.6MB. Free memory was 31.9MB in the beginning and 74.3MB in the end (delta: -42.4MB). Peak memory consumption was 18.1MB. Max. memory is 8.0GB. [2025-04-16 02:02:26,560 INFO L158 Benchmark]: Boogie Preprocessor took 221.10ms. Allocated memory is still 142.6MB. Free memory was 74.3MB in the beginning and 43.2MB in the end (delta: 31.1MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2025-04-16 02:02:26,563 INFO L158 Benchmark]: RCFGBuilder took 4106.85ms. Allocated memory was 142.6MB in the beginning and 323.0MB in the end (delta: 180.4MB). Free memory was 43.2MB in the beginning and 108.0MB in the end (delta: -64.8MB). Peak memory consumption was 202.0MB. Max. memory is 8.0GB. [2025-04-16 02:02:26,565 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 159.4MB. Free memory is still 85.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 688.24ms. Allocated memory is still 142.6MB. Free memory was 97.3MB in the beginning and 31.9MB in the end (delta: 65.3MB). Peak memory consumption was 67.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 164.62ms. Allocated memory is still 142.6MB. Free memory was 31.9MB in the beginning and 74.3MB in the end (delta: -42.4MB). Peak memory consumption was 18.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 221.10ms. Allocated memory is still 142.6MB. Free memory was 74.3MB in the beginning and 43.2MB in the end (delta: 31.1MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * RCFGBuilder took 4106.85ms. Allocated memory was 142.6MB in the beginning and 323.0MB in the end (delta: 180.4MB). Free memory was 43.2MB in the beginning and 108.0MB in the end (delta: -64.8MB). Peak memory consumption was 202.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: BeginParallelComposition{ParallelCodeBlock0: call atomic_compare_exchange_strong_#t~mem38#1 := read~int(atomic_compare_exchange_strong_~obj#1.base, atomic_compare_exchange_strong_~obj#1.offset, 4);#race := #race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset := 0];assume ((0 == #race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset] && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset];call atomic_compare_exchange_strong_#t~mem39#1 := read~int(atomic_compare_exchange_strong_~expected#1.base, atomic_compare_exchange_strong_~expected#1.offset, 4);#race := #race[atomic_compare_exchange_strong_~expected#1.base,atomic_compare_exchange_strong_~expected#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~expected#1.base,1 + atomic_compare_exchange_strong_~expected#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~expected#1.base,2 + atomic_compare_exchange_strong_~expected#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~expected#1.base,3 + atomic_compare_exchange_strong_~expected#1.offset := 0];assume ((0 == #race[atomic_compare_exchange_strong_~expected#1.base,atomic_compare_exchange_strong_~expected#1.offset] && 0 == #race[atomic_compare_exchange_strong_~expected#1.base,1 + atomic_compare_exchange_strong_~expected#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~expected#1.base,2 + atomic_compare_exchange_strong_~expected#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~expected#1.base,3 + atomic_compare_exchange_strong_~expected#1.offset];assume atomic_compare_exchange_strong_#t~mem38#1 == atomic_compare_exchange_strong_#t~mem39#1;havoc atomic_compare_exchange_strong_#t~mem38#1;havoc atomic_compare_exchange_strong_#t~mem39#1;call write~int(atomic_compare_exchange_strong_~desired#1, atomic_compare_exchange_strong_~obj#1.base, atomic_compare_exchange_strong_~obj#1.offset, 4);havoc atomic_compare_exchange_strong_#t~nondet40#1;#race := #race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset := atomic_compare_exchange_strong_#t~nondet40#1];#race := #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset := atomic_compare_exchange_strong_#t~nondet40#1];#race := #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset := atomic_compare_exchange_strong_#t~nondet40#1];#race := #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset := atomic_compare_exchange_strong_#t~nondet40#1];assume ((#race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset] == atomic_compare_exchange_strong_#t~nondet40#1 && #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset] == atomic_compare_exchange_strong_#t~nondet40#1) && #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset] == atomic_compare_exchange_strong_#t~nondet40#1) && #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset] == atomic_compare_exchange_strong_#t~nondet40#1;havoc atomic_compare_exchange_strong_#t~nondet40#1;atomic_compare_exchange_strong_~ret~0#1 := 1;ParallelCodeBlock1: call atomic_compare_exchange_strong_#t~mem38#1 := read~int(atomic_compare_exchange_strong_~obj#1.base, atomic_compare_exchange_strong_~obj#1.offset, 4);#race := #race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset := 0];assume ((0 == #race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset] && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset];call atomic_compare_exchange_strong_#t~mem39#1 := read~int(atomic_compare_exchange_strong_~expected#1.base, atomic_compare_exchange_strong_~expected#1.offset, 4);#race := #race[atomic_compare_exchange_strong_~expected#1.base,atomic_compare_exchange_strong_~expected#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~expected#1.base,1 + atomic_compare_exchange_strong_~expected#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~expected#1.base,2 + atomic_compare_exchange_strong_~expected#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~expected#1.base,3 + atomic_compare_exchange_strong_~expected#1.offset := 0];assume ((0 == #race[atomic_compare_exchange_strong_~expected#1.base,atomic_compare_exchange_strong_~expected#1.offset] && 0 == #race[atomic_compare_exchange_strong_~expected#1.base,1 + atomic_compare_exchange_strong_~expected#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~expected#1.base,2 + atomic_compare_exchange_strong_~expected#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~expected#1.base,3 + atomic_compare_exchange_strong_~expected#1.offset];assume !(atomic_compare_exchange_strong_#t~mem38#1 == atomic_compare_exchange_strong_#t~mem39#1);havoc atomic_compare_exchange_strong_#t~mem38#1;havoc atomic_compare_exchange_strong_#t~mem39#1;call atomic_compare_exchange_strong_#t~mem41#1 := read~int(atomic_compare_exchange_strong_~obj#1.base, atomic_compare_exchange_strong_~obj#1.offset, 4);#race := #race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset := 0];assume ((0 == #race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset] && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset];call write~int(atomic_compare_exchange_strong_#t~mem41#1, atomic_compare_exchange_strong_~expected#1.base, atomic_compare_exchange_strong_~expected#1.offset, 4);havoc atomic_compare_exchange_strong_#t~nondet42#1;#race := #race[atomic_compare_exchange_strong_~expected#1.base,atomic_compare_exchange_strong_~expected#1.offset := atomic_compare_exchange_strong_#t~nondet42#1];#race := #race[atomic_compare_exchange_strong_~expected#1.base,1 + atomic_compare_exchange_strong_~expected#1.offset := atomic_compare_exchange_strong_#t~nondet42#1];#race := #race[atomic_compare_exchange_strong_~expected#1.base,2 + atomic_compare_exchange_strong_~expected#1.offset := atomic_compare_exchange_strong_#t~nondet42#1];#race := #race[atomic_compare_exchange_strong_~expected#1.base,3 + atomic_compare_exchange_strong_~expected#1.offset := atomic_compare_exchange_strong_#t~nondet42#1];assume ((#race[atomic_compare_exchange_strong_~expected#1.base,atomic_compare_exchange_strong_~expected#1.offset] == atomic_compare_exchange_strong_#t~nondet42#1 && #race[atomic_compare_exchange_strong_~expected#1.base,1 + atomic_compare_exchange_strong_~expected#1.offset] == atomic_compare_exchange_strong_#t~nondet42#1) && #race[atomic_compare_exchange_strong_~expected#1.base,2 + atomic_compare_exchange_strong_~expected#1.offset] == atomic_compare_exchange_strong_#t~nondet42#1) && #race[atomic_compare_exchange_strong_~expected#1.base,3 + atomic_compare_exchange_strong_~expected#1.offset] == atomic_compare_exchange_strong_#t~nondet42#1;havoc atomic_compare_exchange_strong_#t~mem41#1;havoc atomic_compare_exchange_strong_#t~nondet42#1;atomic_compare_exchange_strong_~ret~0#1 := 0;}EndParallelComposition). 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: BeginParallelComposition{ParallelCodeBlock0: call atomic_compare_exchange_strong_#t~mem38#1 := read~int(atomic_compare_exchange_strong_~obj#1.base, atomic_compare_exchange_strong_~obj#1.offset, 4);#race := #race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset := 0];assume ((0 == #race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset] && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset];call atomic_compare_exchange_strong_#t~mem39#1 := read~int(atomic_compare_exchange_strong_~expected#1.base, atomic_compare_exchange_strong_~expected#1.offset, 4);#race := #race[atomic_compare_exchange_strong_~expected#1.base,atomic_compare_exchange_strong_~expected#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~expected#1.base,1 + atomic_compare_exchange_strong_~expected#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~expected#1.base,2 + atomic_compare_exchange_strong_~expected#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~expected#1.base,3 + atomic_compare_exchange_strong_~expected#1.offset := 0];assume ((0 == #race[atomic_compare_exchange_strong_~expected#1.base,atomic_compare_exchange_strong_~expected#1.offset] && 0 == #race[atomic_compare_exchange_strong_~expected#1.base,1 + atomic_compare_exchange_strong_~expected#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~expected#1.base,2 + atomic_compare_exchange_strong_~expected#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~expected#1.base,3 + atomic_compare_exchange_strong_~expected#1.offset];assume atomic_compare_exchange_strong_#t~mem38#1 == atomic_compare_exchange_strong_#t~mem39#1;havoc atomic_compare_exchange_strong_#t~mem38#1;havoc atomic_compare_exchange_strong_#t~mem39#1;call write~int(atomic_compare_exchange_strong_~desired#1, atomic_compare_exchange_strong_~obj#1.base, atomic_compare_exchange_strong_~obj#1.offset, 4);havoc atomic_compare_exchange_strong_#t~nondet40#1;#race := #race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset := atomic_compare_exchange_strong_#t~nondet40#1];#race := #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset := atomic_compare_exchange_strong_#t~nondet40#1];#race := #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset := atomic_compare_exchange_strong_#t~nondet40#1];#race := #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset := atomic_compare_exchange_strong_#t~nondet40#1];assume ((#race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset] == atomic_compare_exchange_strong_#t~nondet40#1 && #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset] == atomic_compare_exchange_strong_#t~nondet40#1) && #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset] == atomic_compare_exchange_strong_#t~nondet40#1) && #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset] == atomic_compare_exchange_strong_#t~nondet40#1;havoc atomic_compare_exchange_strong_#t~nondet40#1;atomic_compare_exchange_strong_~ret~0#1 := 1;ParallelCodeBlock1: call atomic_compare_exchange_strong_#t~mem38#1 := read~int(atomic_compare_exchange_strong_~obj#1.base, atomic_compare_exchange_strong_~obj#1.offset, 4);#race := #race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset := 0];assume ((0 == #race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset] && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset];call atomic_compare_exchange_strong_#t~mem39#1 := read~int(atomic_compare_exchange_strong_~expected#1.base, atomic_compare_exchange_strong_~expected#1.offset, 4);#race := #race[atomic_compare_exchange_strong_~expected#1.base,atomic_compare_exchange_strong_~expected#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~expected#1.base,1 + atomic_compare_exchange_strong_~expected#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~expected#1.base,2 + atomic_compare_exchange_strong_~expected#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~expected#1.base,3 + atomic_compare_exchange_strong_~expected#1.offset := 0];assume ((0 == #race[atomic_compare_exchange_strong_~expected#1.base,atomic_compare_exchange_strong_~expected#1.offset] && 0 == #race[atomic_compare_exchange_strong_~expected#1.base,1 + atomic_compare_exchange_strong_~expected#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~expected#1.base,2 + atomic_compare_exchange_strong_~expected#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~expected#1.base,3 + atomic_compare_exchange_strong_~expected#1.offset];assume !(atomic_compare_exchange_strong_#t~mem38#1 == atomic_compare_exchange_strong_#t~mem39#1);havoc atomic_compare_exchange_strong_#t~mem38#1;havoc atomic_compare_exchange_strong_#t~mem39#1;call atomic_compare_exchange_strong_#t~mem41#1 := read~int(atomic_compare_exchange_strong_~obj#1.base, atomic_compare_exchange_strong_~obj#1.offset, 4);#race := #race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset := 0];#race := #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset := 0];assume ((0 == #race[atomic_compare_exchange_strong_~obj#1.base,atomic_compare_exchange_strong_~obj#1.offset] && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,1 + atomic_compare_exchange_strong_~obj#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,2 + atomic_compare_exchange_strong_~obj#1.offset]) && 0 == #race[atomic_compare_exchange_strong_~obj#1.base,3 + atomic_compare_exchange_strong_~obj#1.offset];call write~int(atomic_compare_exchange_strong_#t~mem41#1, atomic_compare_exchange_strong_~expected#1.base, atomic_compare_exchange_strong_~expected#1.offset, 4);havoc atomic_compare_exchange_strong_#t~nondet42#1;#race := #race[atomic_compare_exchange_strong_~expected#1.base,atomic_compare_exchange_strong_~expected#1.offset := atomic_compare_exchange_strong_#t~nondet42#1];#race := #race[atomic_compare_exchange_strong_~expected#1.base,1 + atomic_compare_exchange_strong_~expected#1.offset := atomic_compare_exchange_strong_#t~nondet42#1];#race := #race[atomic_compare_exchange_strong_~expected#1.base,2 + atomic_compare_exchange_strong_~expected#1.offset := atomic_compare_exchange_strong_#t~nondet42#1];#race := #race[atomic_compare_exchange_strong_~expected#1.base,3 + atomic_compare_exchange_strong_~expected#1.offset := atomic_compare_exchange_strong_#t~nondet42#1];assume ((#race[atomic_compare_exchange_strong_~expected#1.base,atomic_compare_exchange_strong_~expected#1.offset] == atomic_compare_exchange_strong_#t~nondet42#1 && #race[atomic_compare_exchange_strong_~expected#1.base,1 + atomic_compare_exchange_strong_~expected#1.offset] == atomic_compare_exchange_strong_#t~nondet42#1) && #race[atomic_compare_exchange_strong_~expected#1.base,2 + atomic_compare_exchange_strong_~expected#1.offset] == atomic_compare_exchange_strong_#t~nondet42#1) && #race[atomic_compare_exchange_strong_~expected#1.base,3 + atomic_compare_exchange_strong_~expected#1.offset] == atomic_compare_exchange_strong_#t~nondet42#1;havoc atomic_compare_exchange_strong_#t~mem41#1;havoc atomic_compare_exchange_strong_#t~nondet42#1;atomic_compare_exchange_strong_~ret~0#1 := 0;}EndParallelComposition). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.AtomicBlockAnalyzer.ensureAtomicCompositionComplete(AtomicBlockAnalyzer.java:146) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2025-04-16 02:02:26,581 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...