./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2ef1b6-0ad6-40ec-ba6f-74a2295f7598/bin/ugemcutter-verify-fG3NtRWMco/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2ef1b6-0ad6-40ec-ba6f-74a2295f7598/bin/ugemcutter-verify-fG3NtRWMco/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2ef1b6-0ad6-40ec-ba6f-74a2295f7598/bin/ugemcutter-verify-fG3NtRWMco/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2ef1b6-0ad6-40ec-ba6f-74a2295f7598/bin/ugemcutter-verify-fG3NtRWMco/config/GemCutterReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2ef1b6-0ad6-40ec-ba6f-74a2295f7598/bin/ugemcutter-verify-fG3NtRWMco/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2ef1b6-0ad6-40ec-ba6f-74a2295f7598/bin/ugemcutter-verify-fG3NtRWMco --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7be9b237ca4111a24c77c67cce26f31a788af03984af96dee7353f79c789c2c1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 06:31:54,559 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 06:31:54,650 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2ef1b6-0ad6-40ec-ba6f-74a2295f7598/bin/ugemcutter-verify-fG3NtRWMco/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-27 06:31:54,655 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 06:31:54,655 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 06:31:54,687 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 06:31:54,688 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 06:31:54,688 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 06:31:54,689 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 06:31:54,690 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 06:31:54,691 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 06:31:54,691 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 06:31:54,691 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 06:31:54,692 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 06:31:54,692 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 06:31:54,692 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 06:31:54,693 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 06:31:54,693 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 06:31:54,693 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 06:31:54,693 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 06:31:54,693 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 06:31:54,693 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 06:31:54,693 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 06:31:54,693 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 06:31:54,693 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 06:31:54,693 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 06:31:54,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 06:31:54,694 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 06:31:54,694 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 06:31:54,694 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 06:31:54,694 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-27 06:31:54,694 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 06:31:54,694 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 06:31:54,694 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 06:31:54,694 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-11-27 06:31:54,694 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 06:31:54,694 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 06:31:54,694 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-27 06:31:54,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 06:31:54,695 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 06:31:54,695 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-27 06:31:54,695 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-27 06:31:54,695 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-27 06:31:54,695 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2ef1b6-0ad6-40ec-ba6f-74a2295f7598/bin/ugemcutter-verify-fG3NtRWMco Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7be9b237ca4111a24c77c67cce26f31a788af03984af96dee7353f79c789c2c1 [2024-11-27 06:31:55,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 06:31:55,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 06:31:55,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 06:31:55,019 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 06:31:55,019 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 06:31:55,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2ef1b6-0ad6-40ec-ba6f-74a2295f7598/bin/ugemcutter-verify-fG3NtRWMco/../../sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i [2024-11-27 06:31:57,919 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2ef1b6-0ad6-40ec-ba6f-74a2295f7598/bin/ugemcutter-verify-fG3NtRWMco/data/bb219c854/03c479ff0826415cbe210387f616d8d2/FLAGbe0d7ceb6 [2024-11-27 06:31:58,376 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 06:31:58,379 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2ef1b6-0ad6-40ec-ba6f-74a2295f7598/sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i [2024-11-27 06:31:58,409 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2ef1b6-0ad6-40ec-ba6f-74a2295f7598/bin/ugemcutter-verify-fG3NtRWMco/data/bb219c854/03c479ff0826415cbe210387f616d8d2/FLAGbe0d7ceb6 [2024-11-27 06:31:58,427 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2ef1b6-0ad6-40ec-ba6f-74a2295f7598/bin/ugemcutter-verify-fG3NtRWMco/data/bb219c854/03c479ff0826415cbe210387f616d8d2 [2024-11-27 06:31:58,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 06:31:58,431 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 06:31:58,432 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 06:31:58,432 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 06:31:58,438 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 06:31:58,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 06:31:58" (1/1) ... [2024-11-27 06:31:58,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f1906a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:31:58, skipping insertion in model container [2024-11-27 06:31:58,440 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 06:31:58" (1/1) ... [2024-11-27 06:31:58,481 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 06:31:58,980 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2ef1b6-0ad6-40ec-ba6f-74a2295f7598/sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i[47038,47051] [2024-11-27 06:31:59,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 06:31:59,304 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 06:31:59,346 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2ef1b6-0ad6-40ec-ba6f-74a2295f7598/sv-benchmarks/c/goblint-regression/28-race_reach_87-lists_racefree.i[47038,47051] [2024-11-27 06:31:59,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 06:31:59,513 INFO L204 MainTranslator]: Completed translation [2024-11-27 06:31:59,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:31:59 WrapperNode [2024-11-27 06:31:59,514 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 06:31:59,515 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 06:31:59,515 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 06:31:59,515 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 06:31:59,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:31:59" (1/1) ... [2024-11-27 06:31:59,554 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:31:59" (1/1) ... [2024-11-27 06:31:59,700 INFO L138 Inliner]: procedures = 280, calls = 1604, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 1775 [2024-11-27 06:31:59,701 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 06:31:59,701 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 06:31:59,701 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 06:31:59,701 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 06:31:59,710 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:31:59" (1/1) ... [2024-11-27 06:31:59,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:31:59" (1/1) ... [2024-11-27 06:31:59,728 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:31:59" (1/1) ... [2024-11-27 06:31:59,728 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:31:59" (1/1) ... [2024-11-27 06:31:59,786 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:31:59" (1/1) ... [2024-11-27 06:31:59,791 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:31:59" (1/1) ... [2024-11-27 06:31:59,796 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:31:59" (1/1) ... [2024-11-27 06:31:59,803 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:31:59" (1/1) ... [2024-11-27 06:31:59,816 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:31:59" (1/1) ... [2024-11-27 06:31:59,842 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 06:31:59,842 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 06:31:59,842 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 06:31:59,843 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 06:31:59,843 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:31:59" (1/1) ... [2024-11-27 06:31:59,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-27 06:31:59,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2ef1b6-0ad6-40ec-ba6f-74a2295f7598/bin/ugemcutter-verify-fG3NtRWMco/z3 [2024-11-27 06:31:59,878 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2ef1b6-0ad6-40ec-ba6f-74a2295f7598/bin/ugemcutter-verify-fG3NtRWMco/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-27 06:31:59,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d2ef1b6-0ad6-40ec-ba6f-74a2295f7598/bin/ugemcutter-verify-fG3NtRWMco/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-27 06:31:59,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 06:31:59,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-27 06:31:59,948 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-27 06:31:59,948 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-27 06:31:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 06:31:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-27 06:31:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-27 06:31:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-27 06:31:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-27 06:31:59,950 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-27 06:31:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-27 06:31:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-27 06:31:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 06:31:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 06:31:59,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-27 06:31:59,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 06:31:59,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 06:31:59,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 06:31:59,953 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 06:32:00,156 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 06:32:00,159 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 06:32:02,868 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 06:32:02,868 INFO L283 CfgBuilder]: Performing block encoding