./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/config/GemCutterReach.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_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/config/svcomp-DataRace-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 20:50:20,030 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 20:50:20,099 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/config/svcomp-DataRace-32bit-GemCutter_Default.epf [2023-12-02 20:50:20,105 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 20:50:20,105 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 20:50:20,132 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 20:50:20,133 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 20:50:20,133 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 20:50:20,134 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 20:50:20,135 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 20:50:20,136 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 20:50:20,136 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 20:50:20,137 INFO L153 SettingsManager]: * Use SBE=true [2023-12-02 20:50:20,137 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 20:50:20,138 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 20:50:20,138 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 20:50:20,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 20:50:20,139 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 20:50:20,139 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 20:50:20,140 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 20:50:20,140 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 20:50:20,143 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 20:50:20,144 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-12-02 20:50:20,144 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 20:50:20,145 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 20:50:20,145 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 20:50:20,145 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 20:50:20,146 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 20:50:20,146 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 20:50:20,147 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-12-02 20:50:20,147 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 20:50:20,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 20:50:20,148 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 20:50:20,148 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 20:50:20,148 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 20:50:20,148 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-02 20:50:20,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 20:50:20,149 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 20:50:20,149 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-12-02 20:50:20,149 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-12-02 20:50:20,149 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 20:50:20,150 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-12-02 20:50:20,150 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-12-02 20:50:20,150 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 [2023-12-02 20:50:20,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 20:50:20,416 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 20:50:20,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 20:50:20,420 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 20:50:20,421 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 20:50:20,422 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2023-12-02 20:50:23,225 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 20:50:23,454 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 20:50:23,454 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2023-12-02 20:50:23,467 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/data/23a3f7fa9/30486e0dbd464bf4b4a59b2d11c3d891/FLAG34382be01 [2023-12-02 20:50:23,478 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/data/23a3f7fa9/30486e0dbd464bf4b4a59b2d11c3d891 [2023-12-02 20:50:23,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 20:50:23,482 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 20:50:23,483 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 20:50:23,483 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 20:50:23,489 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 20:50:23,490 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:50:23" (1/1) ... [2023-12-02 20:50:23,491 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2701682f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:23, skipping insertion in model container [2023-12-02 20:50:23,491 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:50:23" (1/1) ... [2023-12-02 20:50:23,541 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 20:50:23,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:50:23,853 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 20:50:23,904 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:50:23,933 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 20:50:23,933 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 20:50:23,939 INFO L206 MainTranslator]: Completed translation [2023-12-02 20:50:23,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:23 WrapperNode [2023-12-02 20:50:23,939 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 20:50:23,940 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 20:50:23,940 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 20:50:23,940 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 20:50:23,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:23" (1/1) ... [2023-12-02 20:50:23,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:23" (1/1) ... [2023-12-02 20:50:23,989 INFO L138 Inliner]: procedures = 172, calls = 24, calls flagged for inlining = 6, calls inlined = 9, statements flattened = 194 [2023-12-02 20:50:23,989 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 20:50:23,990 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 20:50:23,990 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 20:50:23,991 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 20:50:23,999 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:23" (1/1) ... [2023-12-02 20:50:23,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:23" (1/1) ... [2023-12-02 20:50:24,003 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:23" (1/1) ... [2023-12-02 20:50:24,004 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:23" (1/1) ... [2023-12-02 20:50:24,036 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:23" (1/1) ... [2023-12-02 20:50:24,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:23" (1/1) ... [2023-12-02 20:50:24,043 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:23" (1/1) ... [2023-12-02 20:50:24,045 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:23" (1/1) ... [2023-12-02 20:50:24,050 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 20:50:24,051 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 20:50:24,051 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 20:50:24,051 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 20:50:24,052 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:23" (1/1) ... [2023-12-02 20:50:24,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 20:50:24,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:50:24,085 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 20:50:24,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 20:50:24,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 20:50:24,123 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-12-02 20:50:24,124 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-12-02 20:50:24,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 20:50:24,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-02 20:50:24,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 20:50:24,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 20:50:24,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 20:50:24,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 20:50:24,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-02 20:50:24,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 20:50:24,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 20:50:24,126 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 20:50:24,249 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 20:50:24,251 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 20:50:24,546 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 20:50:24,734 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.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:356) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:296) 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) [2023-12-02 20:50:24,738 INFO L158 Benchmark]: Toolchain (without parser) took 1255.63ms. Allocated memory is still 148.9MB. Free memory was 104.0MB in the beginning and 75.7MB in the end (delta: 28.3MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2023-12-02 20:50:24,739 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 111.1MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 20:50:24,740 INFO L158 Benchmark]: CACSL2BoogieTranslator took 456.33ms. Allocated memory is still 148.9MB. Free memory was 104.0MB in the beginning and 83.9MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-02 20:50:24,741 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.68ms. Allocated memory is still 148.9MB. Free memory was 83.9MB in the beginning and 81.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 20:50:24,741 INFO L158 Benchmark]: Boogie Preprocessor took 59.56ms. Allocated memory is still 148.9MB. Free memory was 81.4MB in the beginning and 120.4MB in the end (delta: -38.9MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2023-12-02 20:50:24,742 INFO L158 Benchmark]: RCFGBuilder took 685.91ms. Allocated memory is still 148.9MB. Free memory was 120.4MB in the beginning and 75.7MB in the end (delta: 44.7MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-12-02 20:50:24,746 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 111.1MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 456.33ms. Allocated memory is still 148.9MB. Free memory was 104.0MB in the beginning and 83.9MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.68ms. Allocated memory is still 148.9MB. Free memory was 83.9MB in the beginning and 81.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.56ms. Allocated memory is still 148.9MB. Free memory was 81.4MB in the beginning and 120.4MB in the end (delta: -38.9MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * RCFGBuilder took 685.91ms. Allocated memory is still 148.9MB. Free memory was 120.4MB in the beginning and 75.7MB in the end (delta: 44.7MB). Peak memory consumption was 44.0MB. 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.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:356) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 20:50:24,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/config/GemCutterReach.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_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/config/svcomp-DataRace-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 20:50:26,785 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 20:50:26,863 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/config/svcomp-DataRace-32bit-GemCutter_Bitvector.epf [2023-12-02 20:50:26,869 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 20:50:26,869 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 20:50:26,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 20:50:26,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 20:50:26,898 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 20:50:26,899 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 20:50:26,899 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 20:50:26,900 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 20:50:26,901 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 20:50:26,901 INFO L153 SettingsManager]: * Use SBE=true [2023-12-02 20:50:26,902 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 20:50:26,903 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 20:50:26,903 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 20:50:26,904 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 20:50:26,904 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 20:50:26,905 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 20:50:26,906 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 20:50:26,906 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 20:50:26,907 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-12-02 20:50:26,907 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 20:50:26,908 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 20:50:26,908 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 20:50:26,909 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 20:50:26,909 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 20:50:26,910 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 20:50:26,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 20:50:26,910 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 20:50:26,911 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 20:50:26,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 20:50:26,912 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 20:50:26,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 20:50:26,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 20:50:26,912 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-02 20:50:26,913 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 20:50:26,913 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 20:50:26,913 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-12-02 20:50:26,913 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-12-02 20:50:26,914 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 20:50:26,914 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-12-02 20:50:26,914 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-12-02 20:50:26,915 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 20:50:26,915 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31f5db4bc5916150a86a586587dbeca1bc7aa37b414274f5dc02856908270171 [2023-12-02 20:50:27,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 20:50:27,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 20:50:27,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 20:50:27,239 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 20:50:27,240 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 20:50:27,241 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/../../sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2023-12-02 20:50:30,146 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 20:50:30,443 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 20:50:30,443 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/sv-benchmarks/c/pthread-ext/48_ticket_lock_low_contention_vs.i [2023-12-02 20:50:30,461 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/data/a0dcb2195/8c8f58073def459a91ebfda4b0a0ba25/FLAG485d3456d [2023-12-02 20:50:30,479 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/data/a0dcb2195/8c8f58073def459a91ebfda4b0a0ba25 [2023-12-02 20:50:30,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 20:50:30,485 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 20:50:30,486 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 20:50:30,487 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 20:50:30,492 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 20:50:30,493 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:50:30" (1/1) ... [2023-12-02 20:50:30,494 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dd03d7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:30, skipping insertion in model container [2023-12-02 20:50:30,494 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:50:30" (1/1) ... [2023-12-02 20:50:30,553 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 20:50:30,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:50:30,952 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 20:50:31,000 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:50:31,040 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 20:50:31,040 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 20:50:31,048 INFO L206 MainTranslator]: Completed translation [2023-12-02 20:50:31,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:31 WrapperNode [2023-12-02 20:50:31,049 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 20:50:31,050 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 20:50:31,050 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 20:50:31,051 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 20:50:31,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:31" (1/1) ... [2023-12-02 20:50:31,079 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:31" (1/1) ... [2023-12-02 20:50:31,134 INFO L138 Inliner]: procedures = 175, calls = 24, calls flagged for inlining = 6, calls inlined = 9, statements flattened = 194 [2023-12-02 20:50:31,134 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 20:50:31,135 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 20:50:31,135 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 20:50:31,136 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 20:50:31,160 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:31" (1/1) ... [2023-12-02 20:50:31,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:31" (1/1) ... [2023-12-02 20:50:31,181 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:31" (1/1) ... [2023-12-02 20:50:31,181 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:31" (1/1) ... [2023-12-02 20:50:31,195 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:31" (1/1) ... [2023-12-02 20:50:31,199 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:31" (1/1) ... [2023-12-02 20:50:31,203 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:31" (1/1) ... [2023-12-02 20:50:31,205 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:31" (1/1) ... [2023-12-02 20:50:31,211 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 20:50:31,212 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 20:50:31,212 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 20:50:31,212 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 20:50:31,213 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:50:31" (1/1) ... [2023-12-02 20:50:31,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 20:50:31,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:50:31,246 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 20:50:31,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 20:50:31,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 20:50:31,282 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-12-02 20:50:31,283 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-12-02 20:50:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-12-02 20:50:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 20:50:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 20:50:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 20:50:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 20:50:31,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 20:50:31,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-12-02 20:50:31,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 20:50:31,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 20:50:31,286 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 20:50:31,445 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 20:50:31,448 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 20:50:31,857 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 20:50:32,149 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.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:356) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:296) 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) [2023-12-02 20:50:32,155 INFO L158 Benchmark]: Toolchain (without parser) took 1669.36ms. Allocated memory is still 102.8MB. Free memory was 77.1MB in the beginning and 43.8MB in the end (delta: 33.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-12-02 20:50:32,155 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 75.5MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 20:50:32,156 INFO L158 Benchmark]: CACSL2BoogieTranslator took 563.07ms. Allocated memory is still 102.8MB. Free memory was 76.9MB in the beginning and 55.6MB in the end (delta: 21.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-12-02 20:50:32,157 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.34ms. Allocated memory is still 102.8MB. Free memory was 55.6MB in the beginning and 79.8MB in the end (delta: -24.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 20:50:32,158 INFO L158 Benchmark]: Boogie Preprocessor took 75.77ms. Allocated memory is still 102.8MB. Free memory was 79.8MB in the beginning and 77.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 20:50:32,159 INFO L158 Benchmark]: RCFGBuilder took 940.87ms. Allocated memory is still 102.8MB. Free memory was 77.1MB in the beginning and 43.8MB in the end (delta: 33.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-12-02 20:50:32,162 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 75.5MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 563.07ms. Allocated memory is still 102.8MB. Free memory was 76.9MB in the beginning and 55.6MB in the end (delta: 21.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.34ms. Allocated memory is still 102.8MB. Free memory was 55.6MB in the beginning and 79.8MB in the end (delta: -24.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.77ms. Allocated memory is still 102.8MB. Free memory was 79.8MB in the beginning and 77.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 940.87ms. Allocated memory is still 102.8MB. Free memory was 77.1MB in the beginning and 43.8MB in the end (delta: 33.3MB). Peak memory consumption was 37.7MB. 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: ). 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.CfgBuilder.ensureAtomicCompositionComplete(CfgBuilder.java:356) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 20:50:32,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b72e8b58-f934-4ba5-a4e1-bb593ef510b3/bin/ugemcutter-verify-Bi2udmvEmx/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 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?