./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/25_stack_longest-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/pthread-ext/25_stack_longest-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0cc9afdbf7eeaac0d52aedc8a0325c076240e2f45d0a3fe91081372b30b32137 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:55:45,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:55:45,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:55:45,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:55:45,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:55:45,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:55:45,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:55:45,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:55:45,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:55:45,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:55:45,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:55:45,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:55:45,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:55:45,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:55:45,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:55:45,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:55:45,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:55:45,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:55:45,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:55:45,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:55:45,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:55:45,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:55:45,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:55:45,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:55:45,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:55:45,543 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:55:45,543 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:55:45,545 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:55:45,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:55:45,547 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:55:45,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:55:45,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:55:45,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:55:45,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:55:45,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:55:45,554 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:55:45,555 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:55:45,555 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:55:45,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:55:45,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:55:45,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:55:45,559 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 15:55:45,586 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:55:45,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:55:45,587 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:55:45,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:55:45,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:55:45,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:55:45,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:55:45,589 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:55:45,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:55:45,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:55:45,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:55:45,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:55:45,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:55:45,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:55:45,591 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:55:45,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:55:45,591 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:55:45,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:55:45,592 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:55:45,592 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:55:45,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:55:45,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:55:45,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:55:45,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:55:45,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:55:45,594 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:55:45,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:55:45,594 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:55:45,594 INFO L138 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_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cc9afdbf7eeaac0d52aedc8a0325c076240e2f45d0a3fe91081372b30b32137 [2021-11-23 15:55:45,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:55:45,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:55:45,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:55:45,972 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:55:45,974 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:55:45,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/pthread-ext/25_stack_longest-1.i [2021-11-23 15:55:46,056 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/data/8e4a58da3/187fdef33f834900936a4ea6a76b4d4c/FLAG215e3fd9b [2021-11-23 15:55:46,580 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:55:46,581 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/sv-benchmarks/c/pthread-ext/25_stack_longest-1.i [2021-11-23 15:55:46,595 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/data/8e4a58da3/187fdef33f834900936a4ea6a76b4d4c/FLAG215e3fd9b [2021-11-23 15:55:46,876 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/data/8e4a58da3/187fdef33f834900936a4ea6a76b4d4c [2021-11-23 15:55:46,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:55:46,882 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:55:46,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:55:46,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:55:46,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:55:46,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:55:46" (1/1) ... [2021-11-23 15:55:46,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74f1758 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:46, skipping insertion in model container [2021-11-23 15:55:46,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:55:46" (1/1) ... [2021-11-23 15:55:46,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:55:46,961 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:55:47,337 WARN L230 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_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/sv-benchmarks/c/pthread-ext/25_stack_longest-1.i[31040,31053] [2021-11-23 15:55:47,351 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:55:47,363 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:55:47,406 WARN L230 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_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/sv-benchmarks/c/pthread-ext/25_stack_longest-1.i[31040,31053] [2021-11-23 15:55:47,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:55:47,453 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:55:47,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47 WrapperNode [2021-11-23 15:55:47,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:55:47,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:55:47,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:55:47,455 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:55:47,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47" (1/1) ... [2021-11-23 15:55:47,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47" (1/1) ... [2021-11-23 15:55:47,504 INFO L137 Inliner]: procedures = 177, calls = 34, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 115 [2021-11-23 15:55:47,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:55:47,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:55:47,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:55:47,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:55:47,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47" (1/1) ... [2021-11-23 15:55:47,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47" (1/1) ... [2021-11-23 15:55:47,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47" (1/1) ... [2021-11-23 15:55:47,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47" (1/1) ... [2021-11-23 15:55:47,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47" (1/1) ... [2021-11-23 15:55:47,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47" (1/1) ... [2021-11-23 15:55:47,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47" (1/1) ... [2021-11-23 15:55:47,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:55:47,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:55:47,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:55:47,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:55:47,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:47" (1/1) ... [2021-11-23 15:55:47,555 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:55:47,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:55:47,578 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:55:47,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:55:47,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:55:47,647 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-23 15:55:47,647 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-23 15:55:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:55:47,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_acquire [2021-11-23 15:55:47,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_acquire [2021-11-23 15:55:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 15:55:47,649 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 15:55:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:55:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:55:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:55:47,649 INFO L130 BoogieDeclarations]: Found specification of procedure EBStack_init [2021-11-23 15:55:47,649 INFO L138 BoogieDeclarations]: Found implementation of procedure EBStack_init [2021-11-23 15:55:47,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:55:47,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_release [2021-11-23 15:55:47,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_release [2021-11-23 15:55:47,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:55:47,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:55:47,652 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 15:55:47,795 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:55:47,797 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:55:48,123 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:55:48,189 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:284) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) 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) [2021-11-23 15:55:48,196 INFO L158 Benchmark]: Toolchain (without parser) took 1311.37ms. Allocated memory is still 102.8MB. Free memory was 61.7MB in the beginning and 48.0MB in the end (delta: 13.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:55:48,196 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 102.8MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:55:48,198 INFO L158 Benchmark]: CACSL2BoogieTranslator took 568.40ms. Allocated memory is still 102.8MB. Free memory was 61.5MB in the beginning and 67.5MB in the end (delta: -6.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:55:48,200 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.06ms. Allocated memory is still 102.8MB. Free memory was 67.5MB in the beginning and 65.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:55:48,201 INFO L158 Benchmark]: Boogie Preprocessor took 29.43ms. Allocated memory is still 102.8MB. Free memory was 65.4MB in the beginning and 64.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:55:48,202 INFO L158 Benchmark]: RCFGBuilder took 657.16ms. Allocated memory is still 102.8MB. Free memory was 64.0MB in the beginning and 48.0MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-23 15:55:48,207 INFO L339 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 102.8MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 568.40ms. Allocated memory is still 102.8MB. Free memory was 61.5MB in the beginning and 67.5MB in the end (delta: -6.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.06ms. Allocated memory is still 102.8MB. Free memory was 67.5MB in the beginning and 65.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.43ms. Allocated memory is still 102.8MB. Free memory was 65.4MB in the beginning and 64.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 657.16ms. Allocated memory is still 102.8MB. Free memory was 64.0MB in the beginning and 48.0MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:55:48,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/pthread-ext/25_stack_longest-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0cc9afdbf7eeaac0d52aedc8a0325c076240e2f45d0a3fe91081372b30b32137 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:55:50,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:55:50,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:55:50,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:55:50,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:55:50,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:55:50,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:55:50,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:55:50,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:55:50,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:55:50,910 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:55:50,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:55:50,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:55:50,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:55:50,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:55:50,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:55:50,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:55:50,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:55:50,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:55:50,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:55:50,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:55:50,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:55:50,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:55:50,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:55:50,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:55:50,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:55:50,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:55:50,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:55:50,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:55:50,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:55:50,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:55:50,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:55:50,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:55:50,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:55:50,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:55:50,952 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:55:50,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:55:50,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:55:50,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:55:50,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:55:50,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:55:50,961 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2021-11-23 15:55:51,014 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:55:51,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:55:51,016 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:55:51,016 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:55:51,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:55:51,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:55:51,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:55:51,018 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:55:51,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:55:51,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:55:51,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:55:51,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:55:51,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:55:51,020 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:55:51,021 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:55:51,021 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:55:51,021 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:55:51,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:55:51,021 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:55:51,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:55:51,022 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:55:51,022 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:55:51,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:55:51,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:55:51,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:55:51,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:55:51,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:55:51,023 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:55:51,024 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:55:51,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:55:51,024 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:55:51,024 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:55:51,025 INFO L138 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_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cc9afdbf7eeaac0d52aedc8a0325c076240e2f45d0a3fe91081372b30b32137 [2021-11-23 15:55:51,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:55:51,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:55:51,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:55:51,526 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:55:51,527 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:55:51,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/pthread-ext/25_stack_longest-1.i [2021-11-23 15:55:51,623 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/data/8a9d127d2/45f566ec271b4703a3c151735fe459f4/FLAG02e2506c8 [2021-11-23 15:55:52,425 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:55:52,426 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/sv-benchmarks/c/pthread-ext/25_stack_longest-1.i [2021-11-23 15:55:52,439 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/data/8a9d127d2/45f566ec271b4703a3c151735fe459f4/FLAG02e2506c8 [2021-11-23 15:55:52,630 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/data/8a9d127d2/45f566ec271b4703a3c151735fe459f4 [2021-11-23 15:55:52,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:55:52,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:55:52,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:55:52,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:55:52,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:55:52,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:55:52" (1/1) ... [2021-11-23 15:55:52,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243584f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:52, skipping insertion in model container [2021-11-23 15:55:52,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:55:52" (1/1) ... [2021-11-23 15:55:52,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:55:52,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:55:53,305 WARN L230 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_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/sv-benchmarks/c/pthread-ext/25_stack_longest-1.i[31040,31053] [2021-11-23 15:55:53,323 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:55:53,348 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:55:53,421 WARN L230 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_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/sv-benchmarks/c/pthread-ext/25_stack_longest-1.i[31040,31053] [2021-11-23 15:55:53,437 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:55:53,510 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:55:53,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:53 WrapperNode [2021-11-23 15:55:53,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:55:53,513 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:55:53,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:55:53,514 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:55:53,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:53" (1/1) ... [2021-11-23 15:55:53,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:53" (1/1) ... [2021-11-23 15:55:53,597 INFO L137 Inliner]: procedures = 181, calls = 34, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 112 [2021-11-23 15:55:53,598 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:55:53,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:55:53,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:55:53,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:55:53,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:53" (1/1) ... [2021-11-23 15:55:53,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:53" (1/1) ... [2021-11-23 15:55:53,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:53" (1/1) ... [2021-11-23 15:55:53,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:53" (1/1) ... [2021-11-23 15:55:53,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:53" (1/1) ... [2021-11-23 15:55:53,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:53" (1/1) ... [2021-11-23 15:55:53,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:53" (1/1) ... [2021-11-23 15:55:53,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:55:53,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:55:53,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:55:53,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:55:53,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:53" (1/1) ... [2021-11-23 15:55:53,684 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:55:53,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:55:53,710 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:55:53,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:55:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:55:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-11-23 15:55:53,770 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-11-23 15:55:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_acquire [2021-11-23 15:55:53,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_acquire [2021-11-23 15:55:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 15:55:53,771 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 15:55:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:55:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:55:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:55:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:55:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:55:53,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-23 15:55:53,773 INFO L130 BoogieDeclarations]: Found specification of procedure EBStack_init [2021-11-23 15:55:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure EBStack_init [2021-11-23 15:55:53,773 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_release [2021-11-23 15:55:53,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_release [2021-11-23 15:55:53,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:55:53,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:55:53,775 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-23 15:55:53,946 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:55:53,948 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:55:54,205 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:55:54,235 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:284) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) 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) [2021-11-23 15:55:54,241 INFO L158 Benchmark]: Toolchain (without parser) took 1603.79ms. Allocated memory was 60.8MB in the beginning and 88.1MB in the end (delta: 27.3MB). Free memory was 39.9MB in the beginning and 57.9MB in the end (delta: -18.0MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2021-11-23 15:55:54,241 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 60.8MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:55:54,242 INFO L158 Benchmark]: CACSL2BoogieTranslator took 874.71ms. Allocated memory is still 60.8MB. Free memory was 39.7MB in the beginning and 33.6MB in the end (delta: 6.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:55:54,243 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.83ms. Allocated memory is still 60.8MB. Free memory was 33.4MB in the beginning and 31.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:55:54,244 INFO L158 Benchmark]: Boogie Preprocessor took 71.12ms. Allocated memory is still 60.8MB. Free memory was 31.3MB in the beginning and 29.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:55:54,245 INFO L158 Benchmark]: RCFGBuilder took 567.21ms. Allocated memory was 60.8MB in the beginning and 88.1MB in the end (delta: 27.3MB). Free memory was 29.3MB in the beginning and 57.9MB in the end (delta: -28.7MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2021-11-23 15:55:54,248 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 60.8MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 874.71ms. Allocated memory is still 60.8MB. Free memory was 39.7MB in the beginning and 33.6MB in the end (delta: 6.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.83ms. Allocated memory is still 60.8MB. Free memory was 33.4MB in the beginning and 31.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.12ms. Allocated memory is still 60.8MB. Free memory was 31.3MB in the beginning and 29.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 567.21ms. Allocated memory was 60.8MB in the beginning and 88.1MB in the end (delta: 27.3MB). Free memory was 29.3MB in the beginning and 57.9MB in the end (delta: -28.7MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:55:54,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a4dcbc-e07d-40e8-a0a1-9111bed66011/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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: Set is immutable