./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/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_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1 --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 0.3.0-dev-d790fec [2024-12-02 07:16:05,094 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:16:05,153 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 07:16:05,158 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:16:05,158 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:16:05,180 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:16:05,181 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:16:05,181 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:16:05,181 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:16:05,181 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:16:05,182 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:16:05,182 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:16:05,182 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:16:05,182 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:16:05,182 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:16:05,182 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:16:05,182 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:16:05,183 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:16:05,183 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:16:05,183 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:16:05,183 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:16:05,183 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:16:05,183 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:16:05,183 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:16:05,183 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 07:16:05,183 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 07:16:05,183 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:16:05,183 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:16:05,183 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:16:05,183 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:16:05,184 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:16:05,184 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:16:05,184 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:16:05,184 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:16:05,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:16:05,184 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:16:05,184 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:16:05,184 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:16:05,184 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:16:05,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:16:05,185 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:16:05,185 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:16:05,185 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:16:05,185 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:16:05,185 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:16:05,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:16:05,185 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:16:05,185 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:16:05,185 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:16:05,185 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:16:05,185 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1 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 [2024-12-02 07:16:05,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:16:05,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:16:05,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:16:05,443 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:16:05,444 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:16:05,445 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2024-12-02 07:16:08,119 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/data/a0f9d3c7a/358cde953f6b44619eecd5a1180fadd1/FLAG3b56795a2 [2024-12-02 07:16:08,348 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:16:08,349 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2024-12-02 07:16:08,363 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/data/a0f9d3c7a/358cde953f6b44619eecd5a1180fadd1/FLAG3b56795a2 [2024-12-02 07:16:08,686 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/data/a0f9d3c7a/358cde953f6b44619eecd5a1180fadd1 [2024-12-02 07:16:08,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:16:08,688 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:16:08,689 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:16:08,689 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:16:08,693 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:16:08,693 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:16:08" (1/1) ... [2024-12-02 07:16:08,694 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59560c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:08, skipping insertion in model container [2024-12-02 07:16:08,694 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:16:08" (1/1) ... [2024-12-02 07:16:08,719 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:16:08,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:16:08,954 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:16:08,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:16:09,021 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:16:09,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:09 WrapperNode [2024-12-02 07:16:09,022 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:16:09,023 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:16:09,023 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:16:09,023 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:16:09,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:09" (1/1) ... [2024-12-02 07:16:09,036 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:09" (1/1) ... [2024-12-02 07:16:09,049 INFO L138 Inliner]: procedures = 172, calls = 20, calls flagged for inlining = 6, calls inlined = 9, statements flattened = 103 [2024-12-02 07:16:09,050 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:16:09,050 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:16:09,050 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:16:09,051 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:16:09,058 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:09" (1/1) ... [2024-12-02 07:16:09,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:09" (1/1) ... [2024-12-02 07:16:09,061 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:09" (1/1) ... [2024-12-02 07:16:09,073 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-12-02 07:16:09,073 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:09" (1/1) ... [2024-12-02 07:16:09,074 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:09" (1/1) ... [2024-12-02 07:16:09,078 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:09" (1/1) ... [2024-12-02 07:16:09,079 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:09" (1/1) ... [2024-12-02 07:16:09,082 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:09" (1/1) ... [2024-12-02 07:16:09,084 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:09" (1/1) ... [2024-12-02 07:16:09,085 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:09" (1/1) ... [2024-12-02 07:16:09,087 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:16:09,087 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:16:09,088 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:16:09,088 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:16:09,088 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:09" (1/1) ... [2024-12-02 07:16:09,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:16:09,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:16:09,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:16:09,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:16:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 07:16:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 07:16:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 07:16:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-12-02 07:16:09,130 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-12-02 07:16:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 07:16:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 07:16:09,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 07:16:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-02 07:16:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:16:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 07:16:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 07:16:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:16:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 07:16:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 07:16:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-02 07:16:09,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:16:09,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:16:09,132 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 07:16:09,240 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:16:09,241 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:16:09,413 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 07:16:09,413 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:16:09,532 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.AtomicBlockAnalyzer.ensureAtomicCompositionComplete(AtomicBlockAnalyzer.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.AtomicBlockAnalyzer.ensureAtomicCompositionIsComplete(AtomicBlockAnalyzer.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-12-02 07:16:09,537 INFO L158 Benchmark]: Toolchain (without parser) took 848.01ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 66.1MB in the end (delta: 50.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-12-02 07:16:09,537 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:16:09,538 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.93ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 96.5MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 07:16:09,538 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.09ms. Allocated memory is still 142.6MB. Free memory was 96.5MB in the beginning and 94.8MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:16:09,539 INFO L158 Benchmark]: Boogie Preprocessor took 36.49ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 92.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:16:09,540 INFO L158 Benchmark]: RCFGBuilder took 448.10ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 66.1MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 07:16:09,541 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.93ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 96.5MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.09ms. Allocated memory is still 142.6MB. Free memory was 96.5MB in the beginning and 94.8MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.49ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 92.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 448.10ms. Allocated memory is still 142.6MB. Free memory was 92.9MB in the beginning and 66.1MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.AtomicBlockAnalyzer.ensureAtomicCompositionComplete(AtomicBlockAnalyzer.java:146) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-12-02 07:16:09,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/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_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1 --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 0.3.0-dev-d790fec [2024-12-02 07:16:11,512 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:16:11,597 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2024-12-02 07:16:11,603 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:16:11,604 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:16:11,626 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:16:11,626 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:16:11,626 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:16:11,627 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:16:11,627 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:16:11,627 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:16:11,627 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:16:11,627 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:16:11,627 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:16:11,628 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:16:11,628 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:16:11,628 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:16:11,628 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:16:11,628 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:16:11,628 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:16:11,628 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:16:11,628 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:16:11,628 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:16:11,628 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 07:16:11,628 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 07:16:11,629 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 07:16:11,629 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 07:16:11,629 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 07:16:11,629 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:16:11,629 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:16:11,629 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:16:11,629 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:16:11,629 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:16:11,629 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:16:11,629 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:16:11,630 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:16:11,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:16:11,630 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:16:11,630 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:16:11,630 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:16:11,630 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:16:11,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:16:11,630 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:16:11,630 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:16:11,630 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:16:11,631 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:16:11,631 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 07:16:11,631 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 07:16:11,631 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:16:11,631 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:16:11,631 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:16:11,631 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:16:11,631 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1 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 [2024-12-02 07:16:11,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:16:11,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:16:11,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:16:11,859 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:16:11,860 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:16:11,861 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2024-12-02 07:16:14,467 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/data/6d5f5b054/2add4fc15a3b43829ea6409791dc7346/FLAGe3ea48611 [2024-12-02 07:16:14,734 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:16:14,735 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2024-12-02 07:16:14,749 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/data/6d5f5b054/2add4fc15a3b43829ea6409791dc7346/FLAGe3ea48611 [2024-12-02 07:16:15,053 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/data/6d5f5b054/2add4fc15a3b43829ea6409791dc7346 [2024-12-02 07:16:15,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:16:15,056 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:16:15,056 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:16:15,057 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:16:15,059 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:16:15,060 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:16:15" (1/1) ... [2024-12-02 07:16:15,060 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64213240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:15, skipping insertion in model container [2024-12-02 07:16:15,060 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:16:15" (1/1) ... [2024-12-02 07:16:15,084 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:16:15,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:16:15,331 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:16:15,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:16:15,412 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:16:15,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:15 WrapperNode [2024-12-02 07:16:15,412 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:16:15,413 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:16:15,413 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:16:15,413 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:16:15,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:15" (1/1) ... [2024-12-02 07:16:15,429 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:15" (1/1) ... [2024-12-02 07:16:15,447 INFO L138 Inliner]: procedures = 175, calls = 20, calls flagged for inlining = 6, calls inlined = 9, statements flattened = 103 [2024-12-02 07:16:15,447 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:16:15,448 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:16:15,448 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:16:15,448 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:16:15,455 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:15" (1/1) ... [2024-12-02 07:16:15,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:15" (1/1) ... [2024-12-02 07:16:15,458 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:15" (1/1) ... [2024-12-02 07:16:15,469 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-12-02 07:16:15,470 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:15" (1/1) ... [2024-12-02 07:16:15,470 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:15" (1/1) ... [2024-12-02 07:16:15,477 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:15" (1/1) ... [2024-12-02 07:16:15,478 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:15" (1/1) ... [2024-12-02 07:16:15,480 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:15" (1/1) ... [2024-12-02 07:16:15,481 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:15" (1/1) ... [2024-12-02 07:16:15,482 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:15" (1/1) ... [2024-12-02 07:16:15,484 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:16:15,485 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:16:15,485 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:16:15,485 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:16:15,486 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:16:15" (1/1) ... [2024-12-02 07:16:15,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:16:15,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:16:15,513 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:16:15,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:16:15,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-12-02 07:16:15,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-12-02 07:16:15,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-12-02 07:16:15,536 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-12-02 07:16:15,536 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-12-02 07:16:15,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-12-02 07:16:15,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:16:15,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 07:16:15,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 07:16:15,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-12-02 07:16:15,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-12-02 07:16:15,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-12-02 07:16:15,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 07:16:15,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 07:16:15,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-12-02 07:16:15,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-12-02 07:16:15,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:16:15,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:16:15,538 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 07:16:15,652 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:16:15,654 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:16:15,831 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 07:16:15,831 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:16:15,971 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). Is there illegal control flow (e.g. loops) within an atomic block? at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.AtomicBlockAnalyzer.ensureAtomicCompositionComplete(AtomicBlockAnalyzer.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.AtomicBlockAnalyzer.ensureAtomicCompositionIsComplete(AtomicBlockAnalyzer.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-12-02 07:16:15,976 INFO L158 Benchmark]: Toolchain (without parser) took 919.37ms. Allocated memory is still 92.3MB. Free memory was 68.2MB in the beginning and 39.4MB in the end (delta: 28.9MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2024-12-02 07:16:15,976 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:16:15,977 INFO L158 Benchmark]: CACSL2BoogieTranslator took 356.32ms. Allocated memory is still 92.3MB. Free memory was 68.0MB in the beginning and 47.6MB in the end (delta: 20.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 07:16:15,977 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.91ms. Allocated memory is still 92.3MB. Free memory was 47.6MB in the beginning and 45.8MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:16:15,977 INFO L158 Benchmark]: Boogie Preprocessor took 36.90ms. Allocated memory is still 92.3MB. Free memory was 45.8MB in the beginning and 43.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:16:15,978 INFO L158 Benchmark]: RCFGBuilder took 489.27ms. Allocated memory is still 92.3MB. Free memory was 43.4MB in the beginning and 39.4MB in the end (delta: 4.0MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2024-12-02 07:16:15,980 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 356.32ms. Allocated memory is still 92.3MB. Free memory was 68.0MB in the beginning and 47.6MB in the end (delta: 20.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.91ms. Allocated memory is still 92.3MB. Free memory was 47.6MB in the beginning and 45.8MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.90ms. Allocated memory is still 92.3MB. Free memory was 45.8MB in the beginning and 43.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 489.27ms. Allocated memory is still 92.3MB. Free memory was 43.4MB in the beginning and 39.4MB in the end (delta: 4.0MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). Is there illegal control flow (e.g. loops) within an atomic block? de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). Is there illegal control flow (e.g. loops) within an atomic block?: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.AtomicBlockAnalyzer.ensureAtomicCompositionComplete(AtomicBlockAnalyzer.java:146) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-12-02 07:16:15,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7242d23b-726d-469a-b549-69a0d965a7c0/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Incomplete atomic composition (dangling start of atomic block: ). Is there illegal control flow (e.g. loops) within an atomic block?