./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:46:23,546 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:46:23,670 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:46:23,684 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:46:23,685 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:46:23,736 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:46:23,738 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:46:23,739 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:46:23,740 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:46:23,746 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:46:23,747 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:46:23,748 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:46:23,749 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:46:23,751 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:46:23,751 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:46:23,752 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:46:23,752 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:46:23,753 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:46:23,753 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:46:23,754 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:46:23,754 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:46:23,755 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:46:23,756 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:46:23,756 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:46:23,757 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:46:23,757 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:46:23,758 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:46:23,759 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:46:23,759 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:46:23,760 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:46:23,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:23,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:46:23,762 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:46:23,763 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:46:23,763 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:46:23,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:46:23,764 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:46:23,764 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:46:23,764 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:46:23,765 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:46:23,765 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:46:23,765 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 [2023-11-19 07:46:24,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:46:24,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:46:24,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:46:24,181 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:46:24,181 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:46:24,183 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2023-11-19 07:46:27,481 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:46:27,866 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:46:27,869 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2023-11-19 07:46:27,893 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/data/5301e016d/74a7bb59c85e4042ae4753f9aa4f8877/FLAGa144aa6fa [2023-11-19 07:46:27,912 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/data/5301e016d/74a7bb59c85e4042ae4753f9aa4f8877 [2023-11-19 07:46:27,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:46:27,918 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:46:27,920 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:27,920 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:46:27,929 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:46:27,932 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:27" (1/1) ... [2023-11-19 07:46:27,934 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c209468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:27, skipping insertion in model container [2023-11-19 07:46:27,934 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:27" (1/1) ... [2023-11-19 07:46:28,006 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:46:28,245 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:46:28,436 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:28,449 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:46:28,467 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:46:28,493 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:28,529 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:46:28,529 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:46:28,529 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:46:28,539 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:46:28,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:28 WrapperNode [2023-11-19 07:46:28,540 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:28,541 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:28,541 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:46:28,542 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:46:28,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:28" (1/1) ... [2023-11-19 07:46:28,567 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:28" (1/1) ... [2023-11-19 07:46:28,596 INFO L138 Inliner]: procedures = 173, calls = 25, calls flagged for inlining = 6, calls inlined = 9, statements flattened = 114 [2023-11-19 07:46:28,597 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:28,598 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:46:28,598 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:46:28,598 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:46:28,608 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:28" (1/1) ... [2023-11-19 07:46:28,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:28" (1/1) ... [2023-11-19 07:46:28,613 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:28" (1/1) ... [2023-11-19 07:46:28,613 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:28" (1/1) ... [2023-11-19 07:46:28,621 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:28" (1/1) ... [2023-11-19 07:46:28,626 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:28" (1/1) ... [2023-11-19 07:46:28,629 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:28" (1/1) ... [2023-11-19 07:46:28,631 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:28" (1/1) ... [2023-11-19 07:46:28,634 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:46:28,636 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:46:28,636 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:46:28,636 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:46:28,637 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:28" (1/1) ... [2023-11-19 07:46:28,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:28,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:28,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:28,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:46:28,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:46:28,734 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-19 07:46:28,735 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-19 07:46:28,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:46:28,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:46:28,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:46:28,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:46:28,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:46:28,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:46:28,739 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:46:28,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:46:28,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:46:28,742 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:46:28,943 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:46:28,946 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:46:29,175 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:46:29,351 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:46:29,351 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 07:46:29,354 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: call #t~mem4#1 := read~int(~#l~0#1.base, ~#l~0#1.offset, 4);). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:304) 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) [2023-11-19 07:46:29,365 INFO L158 Benchmark]: Toolchain (without parser) took 1447.17ms. Allocated memory is still 159.4MB. Free memory was 115.3MB in the beginning and 114.5MB in the end (delta: 830.8kB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2023-11-19 07:46:29,366 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 100.7MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:46:29,367 INFO L158 Benchmark]: CACSL2BoogieTranslator took 620.49ms. Allocated memory is still 159.4MB. Free memory was 115.3MB in the beginning and 95.5MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:46:29,367 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.79ms. Allocated memory is still 159.4MB. Free memory was 95.5MB in the beginning and 93.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:46:29,368 INFO L158 Benchmark]: Boogie Preprocessor took 37.13ms. Allocated memory is still 159.4MB. Free memory was 93.4MB in the beginning and 91.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:46:29,369 INFO L158 Benchmark]: RCFGBuilder took 728.42ms. Allocated memory is still 159.4MB. Free memory was 91.8MB in the beginning and 114.5MB in the end (delta: -22.6MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2023-11-19 07:46:29,371 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 100.7MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 620.49ms. Allocated memory is still 159.4MB. Free memory was 115.3MB in the beginning and 95.5MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.79ms. Allocated memory is still 159.4MB. Free memory was 95.5MB in the beginning and 93.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.13ms. Allocated memory is still 159.4MB. Free memory was 93.4MB in the beginning and 91.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 728.42ms. Allocated memory is still 159.4MB. Free memory was 91.8MB in the beginning and 114.5MB in the end (delta: -22.6MB). Peak memory consumption was 11.7MB. 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: call #t~mem4#1 := read~int(~#l~0#1.base, ~#l~0#1.offset, 4);). 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: call #t~mem4#1 := read~int(~#l~0#1.base, ~#l~0#1.offset, 4);). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:348) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-19 07:46:29,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/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: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:46:32,243 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:46:32,336 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2023-11-19 07:46:32,343 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:46:32,344 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:46:32,377 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:46:32,378 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:46:32,379 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:46:32,380 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:46:32,383 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:46:32,384 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:46:32,384 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:46:32,385 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:46:32,390 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:46:32,391 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:46:32,392 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:46:32,392 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:46:32,393 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:46:32,393 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:46:32,394 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:46:32,394 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:46:32,395 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:46:32,395 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:46:32,395 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:46:32,396 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:46:32,396 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:46:32,397 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:46:32,397 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:46:32,398 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:46:32,398 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:46:32,400 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:46:32,400 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:46:32,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:32,401 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:46:32,401 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:46:32,402 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:46:32,402 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:46:32,403 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:46:32,403 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:46:32,404 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:46:32,404 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:46:32,405 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:46:32,405 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:46:32,405 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:46:32,406 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 [2023-11-19 07:46:32,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:46:32,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:46:32,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:46:32,847 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:46:32,847 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:46:32,849 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2023-11-19 07:46:36,031 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:46:36,380 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:46:36,381 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2023-11-19 07:46:36,397 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/data/0ae2f8734/61e431a087cd4e74bc0bae89790ea33a/FLAG2332e46e2 [2023-11-19 07:46:36,413 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/data/0ae2f8734/61e431a087cd4e74bc0bae89790ea33a [2023-11-19 07:46:36,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:46:36,418 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:46:36,420 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:36,420 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:46:36,426 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:46:36,427 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:36" (1/1) ... [2023-11-19 07:46:36,428 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@371c2bd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:36, skipping insertion in model container [2023-11-19 07:46:36,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:36" (1/1) ... [2023-11-19 07:46:36,478 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:46:36,680 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:46:36,896 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:36,926 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:46:36,941 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 07:46:36,976 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:37,018 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:46:37,019 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:46:37,019 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:46:37,027 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:46:37,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:37 WrapperNode [2023-11-19 07:46:37,028 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:37,029 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:37,030 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:46:37,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:46:37,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:37" (1/1) ... [2023-11-19 07:46:37,058 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:37" (1/1) ... [2023-11-19 07:46:37,085 INFO L138 Inliner]: procedures = 176, calls = 25, calls flagged for inlining = 6, calls inlined = 9, statements flattened = 114 [2023-11-19 07:46:37,086 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:37,087 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:46:37,087 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:46:37,087 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:46:37,095 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:37" (1/1) ... [2023-11-19 07:46:37,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:37" (1/1) ... [2023-11-19 07:46:37,100 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:37" (1/1) ... [2023-11-19 07:46:37,100 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:37" (1/1) ... [2023-11-19 07:46:37,112 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:37" (1/1) ... [2023-11-19 07:46:37,116 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:37" (1/1) ... [2023-11-19 07:46:37,120 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:37" (1/1) ... [2023-11-19 07:46:37,122 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:37" (1/1) ... [2023-11-19 07:46:37,138 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:46:37,150 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:46:37,150 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:46:37,151 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:46:37,152 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:37" (1/1) ... [2023-11-19 07:46:37,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:37,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:37,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:37,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:46:37,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 07:46:37,245 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-19 07:46:37,245 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-19 07:46:37,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:46:37,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:46:37,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:46:37,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:46:37,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:46:37,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:46:37,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:46:37,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:46:37,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:46:37,252 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:46:37,462 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:46:37,465 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:46:37,773 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:46:37,902 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:46:37,902 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 07:46:37,904 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: call #t~mem4#1 := read~intINTTYPE4(~#l~0#1.base, ~#l~0#1.offset, 4bv32);). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:304) 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) [2023-11-19 07:46:37,910 INFO L158 Benchmark]: Toolchain (without parser) took 1491.14ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 50.3MB in the beginning and 64.7MB in the end (delta: -14.5MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. [2023-11-19 07:46:37,910 INFO L158 Benchmark]: CDTParser took 1.37ms. Allocated memory is still 75.5MB. Free memory is still 51.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:46:37,911 INFO L158 Benchmark]: CACSL2BoogieTranslator took 608.79ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 50.1MB in the beginning and 69.0MB in the end (delta: -18.9MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2023-11-19 07:46:37,912 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.09ms. Allocated memory is still 98.6MB. Free memory was 69.0MB in the beginning and 66.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:46:37,912 INFO L158 Benchmark]: Boogie Preprocessor took 62.21ms. Allocated memory is still 98.6MB. Free memory was 66.6MB in the beginning and 64.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:46:37,913 INFO L158 Benchmark]: RCFGBuilder took 758.16ms. Allocated memory is still 98.6MB. Free memory was 64.5MB in the beginning and 64.7MB in the end (delta: -230.3kB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2023-11-19 07:46:37,916 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.37ms. Allocated memory is still 75.5MB. Free memory is still 51.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 608.79ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 50.1MB in the beginning and 69.0MB in the end (delta: -18.9MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.09ms. Allocated memory is still 98.6MB. Free memory was 69.0MB in the beginning and 66.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.21ms. Allocated memory is still 98.6MB. Free memory was 66.6MB in the beginning and 64.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 758.16ms. Allocated memory is still 98.6MB. Free memory was 64.5MB in the beginning and 64.7MB in the end (delta: -230.3kB). Peak memory consumption was 16.4MB. 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: call #t~mem4#1 := read~intINTTYPE4(~#l~0#1.base, ~#l~0#1.offset, 4bv32);). 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: call #t~mem4#1 := read~intINTTYPE4(~#l~0#1.base, ~#l~0#1.offset, 4bv32);). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:348) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-19 07:46:37,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70b222d2-ee96-4719-bf39-389f1f660cbf/bin/uautomizer-verify-uCwYo4JHxu/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: call #t~mem4#1 := read~intINTTYPE4(~#l~0#1.base, ~#l~0#1.offset, 4bv32);). Is there illegal control flow (e.g. loops) within an atomic block?